Pyrenees: Roxadustat in the Treatment of Anemia in End Stage Renal Disease (ESRD) Patients on Stable Dialysis

Sponsor
Astellas Pharma Europe B.V. (Industry)
Overall Status
Completed
CT.gov ID
NCT02278341
Collaborator
FibroGen (Industry)
838
143
2
43.5
5.9
0.1

Study Details

Study Description

Brief Summary

This study was conducted to explore a new therapy for anemia in participants with end stage renal disease (ESRD) on dialysis. Anemia is a reduced number of red blood cells or hemoglobin. Hemoglobin (which contains iron) is important for the transport of oxygen in your blood. The purpose of this study was to evaluate if roxadustat is effective and safe in the maintenance treatment of anemia in ESRD participants on stable dialysis. Roxadustat was compared to epoetin alfa and darbepoetin alfa, commercially available medicines for treatment of anemia.

Condition or Disease Intervention/Treatment Phase
Phase 3

Detailed Description

This study consisted of three study periods as follows:
  • Screening Period: up to 6 weeks

  • Treatment Period: a minimum of 52 weeks up to a maximum of 104 weeks

  • Follow-up Period: 4 weeks

Study Design

Study Type:
Interventional
Actual Enrollment :
838 participants
Allocation:
Randomized
Intervention Model:
Parallel Assignment
Masking:
None (Open Label)
Primary Purpose:
Treatment
Official Title:
A Phase 3, Randomized, Open-Label, Active-Controlled Study to Evaluate the Efficacy and Safety of Roxadustat in the Maintenance Treatment of Anemia in End Stage Renal Disease Patients on Stable Dialysis
Actual Study Start Date :
Nov 21, 2014
Actual Primary Completion Date :
Jun 8, 2017
Actual Study Completion Date :
Jul 6, 2018

Arms and Interventions

Arm Intervention/Treatment
Experimental: Roxadustat

Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met.

Drug: Roxadustat
Participants received initial dose of roxadustat orally as a tablet in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met.
Other Names:
  • ASP1517
  • FG-4592
  • Drug: Iron
    Oral iron treatment was recommended for supplementation to support erythropoiesis and as first-line treatment for iron deficiency, unless participant was intolerant to this treatment. For participants receiving roxadustat the recommended daily dose was 200 mg of elemental iron. Participants were advised to take roxadustat at least 1 hour before or 1 hour after oral iron. Intravenous iron supplementation for participants receiving roxadustat was allowed if all of the following criteria were met: The participant's Hb level had not responded adequately to roxadustat following two consecutive dose increases or reached the maximum dose limit, and participant's ferritin was < 100 ng/mL (< 220 pmol/L) or TSAT < 20%, or the participant was intolerant of oral iron therapy. For participants treated with epoetin alfa or darbepoetin alfa, IV iron supplementation was given according to standard of care.

    Active Comparator: ESA (Erythropoiesis Stimulating Agent) treatment

    Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from the epoetin alfa to darbepoetin alfa or vice versa.

    Drug: Epoetin alfa
    Participants received epoetin alfa via intravenous or subcutaneous injection, once a week, twice a week, or three times a week (TIW). Epoetin alfa dosage was adjusted to maintain Hb level within the target range. Dosing of epoetin alfa was per UK SmPC of Eprex®. Participants received IV iron supplementation according to the standard of care.
    Other Names:
  • Eprex
  • Drug: Darbepoetin alfa
    Participants received darbepoetin alfa via intravenous or subcutaneous injection, once a week or once every other week. Darbepoetin alfa dosage was adjusted to maintain Hb level within the target range. Dosing of darbepoetin alfa was per EU SmPC of Aranesp®. Participants received IV iron supplementation according to the standard of care.
    Other Names:
  • Aranesp
  • Drug: Iron
    Oral iron treatment was recommended for supplementation to support erythropoiesis and as first-line treatment for iron deficiency, unless participant was intolerant to this treatment. For participants receiving roxadustat the recommended daily dose was 200 mg of elemental iron. Participants were advised to take roxadustat at least 1 hour before or 1 hour after oral iron. Intravenous iron supplementation for participants receiving roxadustat was allowed if all of the following criteria were met: The participant's Hb level had not responded adequately to roxadustat following two consecutive dose increases or reached the maximum dose limit, and participant's ferritin was < 100 ng/mL (< 220 pmol/L) or TSAT < 20%, or the participant was intolerant of oral iron therapy. For participants treated with epoetin alfa or darbepoetin alfa, IV iron supplementation was given according to standard of care.

    Outcome Measures

    Primary Outcome Measures

    1. Change From Baseline (BL) to the Average Hemoglobin (Hb) in Weeks 28-36 Without Rescue Therapy [EU (EMA)] [Baseline and weeks 28 to 36]

      Baseline Hb was defined as the mean of four central laboratory Hb values; four latest Hb values prior or on the same date as the first study drug intake. For participants who did not have an available Hb value during the week 28-36 period, imputation rules were applied. For analyses without rescue therapy, participants who used rescue therapy after the initiation of rescue therapy were set to missing for 6 weeks from the start date of rescue therapy. If no Hb value was available, an imputation technique was used, with the mean of all available values from Day 1 to minimum (End of Efficacy Emergent Period) carried forward.

    2. Change From BL to the Average Hb in Weeks 28 to 52 Regardless of Rescue Therapy [US (FDA)] [Baseline and weeks 28 to 52]

      Baseline Hb was defined as the mean of four central laboratory Hb values: four latest Hb values prior or on the same date as first study drug intake. Change from baseline to the average Hb are observed values. Missing hemoglobin data was imputed for each treatment relying on non-missing data from all participants within each treatment group using the Monte Carlo Markov Chain (MCMC) imputation model with treatment, baseline hemoglobin, randomization stratification factors and the available non missing hemoglobin for each scheduled week.

    Secondary Outcome Measures

    1. Percentage of Participants With Hb Response During Weeks 28 to 36 [Weeks 28 to 36]

      Hb response during weeks 28-36, was defined as mean Hb from 10-12 g/dL without receiving rescue therapy in the 6 weeks prior to, or during, the evaluation period. The percentages and 95% CI were unadjusted, the exact method of Clopper-Pearson was used for 95% CI. The Efficacy Emergent Period was defined as the evaluation period from the Analysis date of first dose intake up to end of treatment (EOT) Visit or last non-missing Hb assessment (for participants who died during the treatment period).

    2. Change From BL in Low Density Lipoprotein Cholesterol (LDL-C) to the Average LDL-C of Weeks 12 to 28 [Baseline and weeks 12 to 28]

      Baseline LDL was defined as the LDL value on Day 1. If this value was missing, the latest value prior to first study drug administration was used.

    3. Mean Monthly Intravenous (IV) Iron Use [Day 1 to week 36]

      Participants with no or missing medication records of IV Iron have their monthly IV Iron use set to 0 mg. For participants who took IV Iron, but without a dosing frequency, the average values were set to missing.

    4. Change From BL in Short Form-36 (SF-36) Health Survey Physical Functioning (PF) Sub-score to the Average of Weeks 12 to 28 [Baseline and weeks 12 to 28]

      Baseline SF-36 PF was defined as the SF-36 PF value on Day 1.The SF-36 is a Quality of Life (QoL) instrument designed to assess generic health concepts relevant across age, disease, and treatment groups. The SF-36 contains 36 items that measure eight scales: (1) physical functioning (PF); (2) role limitations due to physical health problems (RP); (3) bodily pain (BP); (4) social functioning (SF); (5) general health perceptions (GH); (6) role limitations due to emotional problems (RE); (7) vitality, energy or fatigue (VT); and (8) mental health(MH). Each scale is transformed into 0-100 score, with higher scores indicating better health status. The SF-36 PF consists of 11 questions focused on health and ability to do usual activities, with higher scores indicating better health status.

    5. Change From BL in SF-36 Vitality (VT) Sub-score to the Average of Weeks 12 to 28 [Baseline and weeks 12 to 28]

      Baseline VT Subscore was defined as the VT value on Day 1. The SF-36 is a QoL instrument designed to assess generic health concepts relevant across age, disease, and treatment groups. The SF-36 vitality has four questions with score range from 0-100 with higher scores indicating better vitality status.

    6. Change From BL in Mean Arterial Pressure (MAP) to the Average of Weeks 20 to 28 [Baseline and weeks 20 to 28]

      Baseline MAP was defined as the MAP value on Day 1. If this value was missing, the latest value prior to first study drug administration was used. Mean Arterial Pressure (MAP) is derived as: MAP = (2/3)*DBP + (1/3)*SBP.

    7. Time to First Occurrence of an Increase in Blood Pressure [Weeks 1 to 36]

      Increase in Blood Pressure was defined as either: Systolic Blood Pressure (SBP) ≥ 170 mmHg and an increase from BL ≥ 20 mmHg, or as: Diastolic Blood Pressure (DBP) ≥ 100 mmHg and an increase from BL ≥ 15 mmHg. For participants who have experienced more than one event, only their first event following study treatment was used. Data reported was analyzed by Kaplan-Meier estimate for cumulative proportion and the 95% confidence interval was calculated with Greenwood's formula.

    8. Change From BL in Mean Arterial Pressure (MAP) to the Average MAP Value of Weeks 20 to 28 [Baseline and weeks 20 to 28]

      Baseline MAP was defined as the MAP value on day 1. If this value was missing, the latest value prior to first study drug administration was used. Mean Arterial Pressure (MAP) is derived as: MAP = (2/3)*DBP + (1/3)*SBP.

    9. Time to First Occurrence of an Increase in Blood Pressure [Weeks 1 to 36]

      Increase in Blood Pressure was defined as either: SBP ≥ 170 mmHg and an increase from BL ≥ 20 mmHg, or as: DBP ≥ 100 mmHg and an increase from BL ≥ 15 mmHg. Data reported was analyzed by Kaplan-Meier estimate for cumulative proportion and the 95% confidence interval was calculated with Greenwood's formula.

    10. Percentage of Participants With a Hb Response During Weeks 28 and 36 Regardless of Use of Rescue Therapy [Weeks 28 to 36]

      Hb response was defined as mean Hb during weeks 28 to 36 within the target range of 10.0 to 12.0 g/dL. The percentages and 95% CI are unadjusted, the exact method of Clopper-Pearson was used for 95% CI.

    11. Change From BL in Hb to Each Postdosing Time Point [Baseline and weeks 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 16, 18,20, 22, 24, 26, 28, 30, 32, 34, 36, 40, 44, 48, 52, 56, 60, 64, 68, 72,76, 80, 84, 88, 92, 96, 100, and 104]

      Baseline Hb was defined as the mean of four latest central laboratory Hb values prior or on the same date as first study drug intake (pre-dose).

    12. Hb Level Averaged Over Weeks 28 to 36, 44 to 52, and 96 to 104 Without Use of Rescue Therapy [Weeks 28 to 36, 44 to 52, and 96 to 104]

      Baseline Hb was defined as the mean of four latest central laboratory Hb values prior or on the same date as first study drug intake (pre-dose). Averaged Hb values over weeks 28-36, weeks 44-52 and weeks 96-104 are observed values.

    13. Change From BL in Hb to the Average of Weeks 28 to 36, 44 to 52, and 96 to 104 Regardless of the Use of Rescue Therapy [Baseline and weeks 28 to 36, 44 to 52, and 96 to 104]

      Change from baseline to the average Hb are observed values. Baseline Hb was defined as the mean of four latest central laboratory Hb values prior or on the same date as first study drug intake (pre-dose).

    14. Percentage of Hb Values ≥ 10 g/dL in Weeks 28 to 36, 44 to 52, and 96 to 104 Without Use of Rescue Therapy [Weeks 28-36, 44-52 and 96-104]

      Percentage for each participant was calculated as Number of Hb values >= 10.0 g/dL / Total number of Hb values*100 in weeks 28 to 36, 44 to 52 and 96 to 104 without use of rescue therapy within 6 weeks prior to and during the 8 week evaluation period.

    15. Percentage of Hb Values Within 10.0 to 12.0 g/dL in Weeks 28 to 36, 44 to 52, and 96 to 104 Without Use of Rescue Therapy [Weeks 28-36, 44-52 and 96-104]

      Percentage for each participant was calculated as Number of Hb values within 10.0-12.0 g/dL / Total number of Hb values*100 in weeks 28 to 36, 44 to 52 and 96 to 104 without use of rescue therapy within 6 weeks prior to and during the 8 week evaluation period.

    16. Number of Hospitalizations [Baseline to End of Treatment (EOT) (Up to week 104)]

      The number of hospitalizations per participant were calculated during the Efficacy Emergent Period. The Efficacy Emergent Period was defined as the evaluation period from the Analysis date of first dose intake up to EOT Visit or last non-missing Hb assessment (for participants who died during the treatment period). It included all Non-Hemodialysis (HD) hospitalizations. The HD days were not counted as hospitalizations, even when performed overnight.

    17. Number of Days of Hospitalization Per Year [Baseline to EOT (Up to week 104)]

      The number of days of hospitalizations per year was calculated as the sum of the durations of all non-HD hospitalizations in days (Date of discharge - Date of admission + 1)] / (duration of efficacy emergent period in days / 365.25). In case of missing dates, the hospitalization duration was imputed by the average duration per stay derived from the participants with non-missing duration within the same treatment group.

    18. Time to First Hospitalization [Baseline to EOT (Up to week 104)]

      Time to first hospitalization in years was defined in years as: (First event date during the Efficacy Emergent Period - Analysis date of First dose intake +1)/365.25, and the 'First event date' was defined as 'Date of first Admission and 'Analysis Date of first dose intake. For participants without hospitalization, the time to censoring was calculated as: (Date of End of Efficacy Emergent Period - Analysis Date of first dose intake + 1) / 365.25. Date of End of Efficacy Emergent Period was defined as as the treatment period up to the EOT visit. For participants who have experienced more than one hospitalization, only their first event following study treatment was used. Data reported was analyzed by Kaplan-Meier estimate for cumulative proportion and the 95% confidence interval was calculated with Greenwood's formula.

    19. Time to First Use of Rescue Therapy [Baseline to EOT (Up to week 104)]

      Rescue therapy was defined as red blood cell (RBC) transfusion for both treatment groups and ESA for roxadustat participants. Only rescue medication that was started during the study treatment and up to end of efficacy emergent period was taken into account and considered as use of rescue medication. For participants who have experienced more than one use of rescue therapy, only their first event following study treatment was used. Data reported was analyzed by Kaplan-Meier estimate for cumulative proportion and the 95% confidence interval was calculated with Greenwood's formula.

    20. Time to First RBC Transfusion [Baseline to EOT (Up to week 104)]

      For participants who have experienced more than one RBC transfusion, only their first event following study treatment was used. For RBC transfusions, when the number of units was not given but the volume transfused was, the number of units were estimated by volume transfused/250 mL (for transfusion of packed cell units) or volume transfused/500 mL (for transfusion of full blood). Data reported was analyzed by Kaplan-Meier estimate for cumulative proportion and the 95% confidence interval was calculated with Greenwood's formula.

    21. Mean Monthly Number of RBC Packs Per Participant [Baseline to EOT (Up to week 104)]

      During efficacy emergent period, the mean monthly number of RBC packs was calculated as the sum of blood volume and units transfused between the first dose and up to the last dose in the period divided by duration of efficacy emergent period (in days) divided by 28 days. Participants without medication records of RBC have their number of RBC packs and volume set to 0.

    22. Mean Monthly Volume of RBC Transfusion Per Participant [Baseline to EOT (Up to week 104)]

      During Efficacy Emergent Period, the mean monthly volume of blood transfused was calculated as the sum of blood volume and units transfused between the first dose and up to the last dose in the period divided by duration of efficacy emergent period (in days) divided by 28 days. The Efficacy Emergent Period was defined as the evaluation period from the Analysis date of first dose intake up to EOT Visit or last non-missing Hb assessment (for participants who died during the treatment period).

    23. Time to First Use of IV Iron Supplementation [Baseline to EOT (Up to week 104)]

      For participants who have received more than one IV iron, only their first event following study treatment was used. Data reported was analyzed by Kaplan-Meier estimate for cumulative proportion and the 95% confidence interval was calculated with Greenwood's formula.

    24. Mean Monthly Intravenous (IV) Iron Per Participant During Weeks 37-52 and Weeks 53-104 [Weeks 37-52 and weeks 53-104]

      Participants with no or missing medication records of IV Iron had their monthly IV Iron use set to 0 mg.

    25. Percentage of Participants With Oral Iron Use Only [Baseline to EOT (Up to week 104)]

      Percentage of participants with/without IV iron only was calculated based on total number of participants within the Efficacy Emergent Period. The Efficacy Emergent Period is defined as the evaluation period from the Analysis date of first dose intake up to EOT Visit or last non-missing Hb assessment (for participants who died during the treatment period).

    26. Change From BL to Each Post-dosing Study Visit in Total Cholesterol [Baseline and weeks 8, 28, 52, 104]

      Baseline assessment was the assessment from Day 1 visit. If baseline value was missing, then the latest screening period value was used as the baseline regardless of fasting status.

    27. Change From BL to Each Post-dosing Study Visit in LDL-C/High-density Lipoprotein Cholesterol (HDL-C) Ratio [Baseline and weeks 8, 28, 52, 104]

      Baseline was defined as the value on Day 1. If baseline value was missing, the latest value prior to first study drug administration was used regardless of fasting.

    28. Change From BL to Each Postdosing Study Visit in Non-HDL Cholesterol [Baseline and weeks 8, 28, 52, 104]

      Baseline was defined as the value on Day 1. If baseline value was missing, the latest value prior to first study drug administration was used regardless of fasting.

    29. Change From BL to Each Postdosing Study Visit in Apolipoproteins A1 (ApoA1) [Baseline and weeks 8, 28, 52, 104]

      Baseline was defined as the value on Day 1. If baseline value was missing, the latest value prior to first study drug administration was used regardless of fasting.

    30. Change From BL to Each Postdosing Study Visit in Apolipoproteins B (ApoB) [Baseline and weeks 8, 28, 52, 104]

      Baseline was defined as the value on Day 1. If baseline value was missing, the latest value prior to first study drug administration was used regardless of fasting.

    31. Change From BL to Each Postdosing Study Visit in ApoB/ApoA1 Ratio [Baseline and weeks 8, 28, 52, 104]

      Baseline was defined as the value on Day 1. If baseline value was missing, the latest value prior to first study drug administration was used.

    32. Number of Participants With Mean LDL Cholesterol < 100 mg/dL Over Weeks 12 to 28 [Weeks 12 to 28]

      Missing category for Fasting Only includes non-fasting participants and the participants with missing values.

    33. Number of Participants With CKD Who Achieved Antihypertensive Treatment Goal [Weeks 12 to 28]

      Achieved antihypertensive treatment goal was defined as SBP < 140 mmHg and DBP < 90 mmHg over an evaluation period based on the average of available values in weeks 12-28 (pre-dialysis).

    34. Change From BL to the Average of Weeks 12 to 28 in SF-36 Physical Component Score (PCS) [Baseline and weeks 12 to 28]

      Baseline SF-36 PCS was defined as the SF-36 PCS value on Day 1. SF-36 contains 36-item that measures 8 scales with scores ranging from 0-100: physical functioning (PF); role limitations due to physical health problems (RP); bodily pain (BP); social functioning (SF); general health perceptions (GH); role limitations due to emotional problems (RE); vitality, energy or fatigue (VT); and mental health (MH). These scores are normed to the US population (norm-based scoring had very little impact on results when data was collected in Western European countries) to have a mean of 50 and standard deviation of 10. The PCS was calculated based on all 8 scales and ranges from 5.02-79.78. For each of these above scales, higher scores always indicating better health status.

    35. Change From BL to the Average of Weeks 12 to 28 in Anemia Subscale (AnS) ("Additional Concerns") of Functional Assessment of Cancer Therapy-Anemia (FACT-An) Score [Baseline and weeks 12 to 28]

      Baseline FACT-An AnS was defined as the FACT-An AnS value on Day 1. Together with the Functional Assessment of Cancer Therapy - General (FACT-G), the Anemia Subscale (AnS) is referred to as the FACT-An Total. The AnS scale contains 13 fatigue specific items (the Fatigue Score) plus 7 items related to anemia. The Anemia AnS score range is 0 to 80. For the above score, a higher score indicates better QoL.

    36. Change From BL to the Average Value of Weeks 12 to 28 in Total FACT-An Score [Baseline and weeks 12 to 28]

      Baseline FACT-An Total Score was defined on Day 1. Total Fact-An score is composed of FACT-G and Ans scales. FACT-G contains 27 items that cover four dimensions of well-being: physical (PWB) - 7 items, functional (FWB) - 7 items, social/family (SWB) - 7 items, and emotional (EWB) - 6 items. The AnS scale contains 13 fatigue specific items (the Fatigue Score) plus 7 items related to anemia. The total score is obtained by summation of the scores from PWB, SWB, EWB, FWB and AnS. The FACT-An Total Score scale range is 0-188. A higher score indicates better QoL.

    37. Change From BL to the Average of Weeks 12 to 28 in Euroqol Questionnaire-5 Dimensions 5 Levels (EQ-5D 5L) Visual Analogue Scale (VAS) Score [Baseline and weeks 12 to 28]

      Baseline assessment was defined as the value on Day 1. The EuroQol Questionnaire -5 Dimensions -5 Levels (EQ-5D-5L) is a self-reported questionnaire, used as a measure of respondents' Health Related Quality of Life (HRQoL) and utility values. The EQ-5D consists of the descriptive system and the visual analogue scale (VAS). The EQ-5D descriptive system comprises 5 dimensions of health: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. Each dimension has 5 levels: no problems, slight problems, moderate problems, severe problems, extreme problems. The VAS records the respondent's self rated health status on a graduated (0-100) scale, where the endpoints are labeled 'Best imaginable health state' and 'Worst imaginable health state' with higher scores for higher HRQoL.

    38. Percentage of Participants With Improvements Measured by Patients' Global Impression of Change (PGIC) [Baseline and weeks 8, 12, 28, 36, 52, 76, 104]

      The PGIC is a patient-rated instrument that measures change in participant's overall status on a 7-point scale ranging from 1 (very much improved) to 7 (very much worse), when compared to the start of treatment. The percentage of participants presented includes very much improved, much improved and minimally improved.

    39. Change From BL in Serum Hepcidin [Baseline and weeks 4, 12, 20, 36, 52, 104, and End of Study (EOS - up to 108 weeks)]

      Baseline assessment was assessment from Day 1 visit. If baseline value was missing, the value from screening visit was used. In case of missing data, no imputation rules were applied.

    40. Change From BL in Serum Ferritin [Baseline and weeks 4, 8, 12, 20, 28, 36, 44, 52, 60, 68, 76, 84, 92, 100, 104, and EOS (up to 108 weeks)]

      Baseline assessment was assessment from Day 1 visit. If baseline value was missing, the value from screening visit was used. In case of missing data, no imputation rules were applied.

    41. Change From BL in Transferrin Saturation (TSAT) [Baseline and weeks 4, 8, 12, 20, 28, 36, 44, 52, 60, 68, 76, 84, 92, 100, 104 and EOS (up to 108 weeks)]

      Baseline assessment was assessment from Day 1 visit. If baseline value was missing, the value from screening visit was used. In case of missing data, no imputation rules were applied.

    42. Change From BL in Glycated Hemoglobin (HbA1c) Level to Weeks 12, 28, 36, 44, 52, 60, 84, 104 and EOS (up to Week 108) [Baseline and weeks 12, 28, 36, 44, 52, 60, 84, 104 and EOS (up to 108 weeks)]

      Percentage of change from baseline to each study visit were calculated for HbA1c. Baseline assessment was assessment from Day 1 visit. If baseline value was missing, the value from screening visit was used. In case of missing data, no imputation rules were applied.

    43. Number of Participants With Treatment-Emergent Adverse Events (TEAEs) [Baseline up to EOS (Up to week 108)]

      Safety was assessed by evaluation of the following variables: (TEAEs; frequency, severity, seriousness, and relationship to study drug), Vital signs (systolic and diastolic blood pressure, pulse, respiratory rate and weight), Clinical laboratory variables (hematology, biochemistry including liver enzymes and total bilirubin, and urinalysis), Physical examination, 12-lead electrocardiogram (ECG) and Vascular Access Thrombosis. All AEs collected during the Safety Emergent Period were counted as TEAE. The TEAE was defined as an adverse event (AE) if it was observed after starting administration of the roxadustat or ESA. Any clinically significant abnormalities were reported as an AEs. All reported deaths after the first study drug administration and up to 28 days after the Analysis Date of Last Dose and considering last dosing frequency.

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    18 Years and Older
    Sexes Eligible for Study:
    All
    Accepts Healthy Volunteers:
    No
    Inclusion Criteria:
    Main Inclusion:
    • Participant is on stable hemodialysis (HD), hemodiafiltration (HDF) or peritoneal dialysis (PD) treatment with the same mode of dialysis for ≥4 months prior to randomization.

    • Participant is on IV or SC epoetin or IV or SC darbepoetin alfa treatment for ≥8 weeks prior to randomization with stable weekly doses (during 4 weeks prior to randomization).

    • Mean of the participant's three most recent Hb values, as measured by central laboratory, during the Screening Period.

    • Participant's alanine aminotransferase (ALT) and aspartate aminotransferase (AST) are ≤3 x upper limit of normal (ULN), and total bilirubin (TBL) is ≤1.5 x ULN

    Exclusion Criteria:
    Main Exclusion:
    • Participant has received a red blood cell (RBC) transfusion within 8 weeks prior to randomization.

    • Participant has a known hereditary hematologic disease such as thalassemia or sickle cell anemia, pure red cell aplasia, or other known causes for anemia other than Chronic Kidney Disease (CKD).

    • Participant has had a myocardial infarction, acute coronary syndrome, stroke, seizure, or a thrombotic/thrombo-embolic event (e.g., deep vein thrombosis or pulmonary embolism) within 12 weeks prior to randomization.

    • Participant has had uncontrolled hypertension, in the opinion of the investigator, within 2 weeks prior to randomization.

    • Participant has a history of malignancy, except for the following: cancers determined to be cured or in remission for ≥5 years, curatively resected basal cell or squamous cell skin cancers, cervical cancer in situ, or resected colonic polyps.

    • Participant has had any prior organ transplant (that has not been explanted), or participant is scheduled for organ transplantation.

    Contacts and Locations

    Locations

    Site City State Country Postal Code
    1 Site BE32004 Brussels Flemish Brabant Belgium 1200
    2 Site BE32001 Aalst Belgium 9300
    3 Site BE32019 Antwerpen Belgium 2020
    4 Site BE32002 Antwerp Belgium 2060
    5 Site BE32012 Baudour Belgium 7331
    6 Site BE32017 Bonheiden Belgium 2820
    7 Site BE32003 Leuven Belgium 3000
    8 Site BE32013 Liege Belgium 4000
    9 Site BE32011 Roeselare Belgium 8800
    10 Site BG35925 Blagoevgrad Bulgaria 2700
    11 Site BG35931 Haskovo Bulgaria 6300
    12 Site BG35915 Pleven Bulgaria 5800
    13 Site BG35909 Plovdiv Bulgaria 4000
    14 Site BG35919 Plovdiv Bulgaria 4003
    15 Site BG35920 Rousse Bulgaria 7002
    16 Site BG35938 Shumen Bulgaria 9700
    17 Site BG35924 Sofia Bulgaria 1309
    18 Site BG35906 Sofia Bulgaria 1431
    19 Site BG35921 Sofia Bulgaria 1527
    20 Site BG35907 Stara Zagora Bulgaria 6000
    21 Site BG35916 Varna Bulgaria 9000
    22 Site BG35918 Varna Bulgaria 9010
    23 Site BG35903 Veliko Tarnovo Bulgaria 5000
    24 Site BG35937 Yambol Bulgaria 8600
    25 Site HR38509 Zagreb Grad Zagreb Croatia 10000
    26 Site HR38508 Cakovec Croatia 40000
    27 Site HR38505 Karlovac Croatia 47000
    28 Site HR38507 Osijek Croatia 31 000
    29 Site HR38506 Rijeka Croatia 51000
    30 Site HR38504 Slavonski Brod Croatia 35000
    31 Site HR38501 Zadar Croatia 23 000
    32 Site CZ42008 Liberec Czechia 46063
    33 Site CZ42021 Praha 6 Czechia 169 00
    34 Site CZ42015 Rakovnik Czechia 26929
    35 Site FR33005 Amiens cedex 1 France 80054
    36 Site FR33010 La Tronche France 38701
    37 Site FR33055 Saint Ouen France 93400
    38 Site FR33007 Saint Priez En Jarez France 42270
    39 Site FR33056 Valenciennes France 59300
    40 Site GE99503 Tbilisi Georgia 0144
    41 Site GE99504 Tbilisi Georgia 0144
    42 Site GE99508 Tbilisi Georgia 159
    43 Site DE49056 Dormagen Nordrhein-Westfalen Germany 41540
    44 Site DE49067 Berlin Germany 10117
    45 Site DE49073 Cloppenburg Germany 49661
    46 Site DE49008 Dresden Germany 01307
    47 Site DE49054 Dusseldorf Germany 40210
    48 Site DE49020 Frankfurt am Main Germany 60590
    49 Site DE49065 Hamburg Germany 23397
    50 Site DE49075 Heilbronn Germany 74076
    51 Site DE49001 Kaiserslautern Germany 67655
    52 Site DE49070 Muenchen Germany 81695
    53 Site DE49002 Solingen Germany 42653
    54 Site DE49071 Villingen-Schwenningen Germany 78052
    55 Site HU36033 Baja Hungary 6500
    56 Site HU36036 Esztergom Hungary 2500
    57 Site HU36031 Gyor Hungary 9002
    58 Site HU36026 Kaposvar Hungary H 7400
    59 Site HU36027 Kistarcsa Hungary 2143
    60 Site HU36032 Pecs Hungary 7624
    61 Site HU36035 Pecs Hungary 7633
    62 Site HU36034 Salgotarjan Hungary 3100
    63 Site HU36004 Szeged Hungary 6724
    64 Site HU36046 Szekesfehervar Hungary 8000
    65 Site HU36006 Szombathely Hungary H 9700
    66 Site HU36003 Zalsaegerszeg Hungary 8900
    67 Site IT39028 Prato Frazione Di Galciana Italy 59100
    68 Site IT39039 Cremona Lombardia Italy 26100
    69 Site IT39014 Mestre Venezia Italy 30174
    70 Site IT39010 Brescia Italy 25123
    71 Site IT39008 Lecco Italy 23900
    72 Site IT39006 Milano Italy 20162
    73 Site IT39037 Modena Italy 41124
    74 Site IT39022 Padova Italy 35128
    75 Site IT39036 Pavia Italy 27100
    76 Site IT39005 Roma Italy 122
    77 Site IT39035 Torino Italy 10126
    78 Site IT39032 Trieste Italy 34142
    79 Site PL48002 Katowice Poland 40 027
    80 Site PL48001 Krakow Poland 30 501
    81 Site PL48013 Szczecin Poland 70-111
    82 Site PL48005 Warszawa Poland 00 507
    83 Site PL48006 Wroclaw Poland 50-556
    84 Site PL48009 Wroclaw Poland 51 124
    85 Site PL48014 Zamosc Poland 20-400
    86 Site PT35121 Almada Portugal 2800-455
    87 Site PT35127 Aveiro Portugal 3800-266
    88 Site PT35139 Cascais Portugal 2750-663
    89 Site PT35117 Faro Portugal 8005-546
    90 Site PT35128 Gaeiras Portugal 2510-702
    91 Site PT35114 Leiria Portugal 2400-441
    92 Site PT35102 Porto Portugal 4099-001
    93 Site PT35122 Setubal Portugal 2900-655
    94 Site RO40018 Bucharest Romania 011794
    95 Site RO40015 Bucharest Romania
    96 Site RO40019 Bucharest Romania
    97 Site RO40003 Bucuresti Romania 22328
    98 Site RO40004 Oradea Romania 410562
    99 Site RU70008 Kaluga Russian Federation 248007
    100 Site RU70051 Moscow Russian Federation 119992
    101 Site RU70005 Moscow Russian Federation 125284
    102 Site RU70003 Nizhny Novgorod Russian Federation 603032
    103 Site RU70004 Omsk Russian Federation 644112
    104 Site RU70014 Rostov-on-Don Russian Federation 344029
    105 Site RU70072 Saint Petersburg Russian Federation 190103
    106 Site RU70002 Saint Petersburg Russian Federation 197089
    107 Site RU70011 Saint-Petersburg Russian Federation 196247
    108 Site RU70050 Saint-Petersburg Russian Federation 197374
    109 Site RU70030 Sankt-Peterburg Russian Federation 197110
    110 Site RU70006 Smolensk Russian Federation 214006
    111 Site RU70037 Volgograd Russian Federation 404120
    112 Site RU70001 Yaroslavl Russian Federation 150062
    113 Site RS38102 Belgrade Serbia 11000
    114 Site RS38105 Belgrade Serbia 11000
    115 Site RS38120 Belgrade Serbia 11000
    116 Site RS38104 Belgrade Serbia
    117 Site RS38117 Krusevac Serbia 37000
    118 Site RS38101 Nis Serbia
    119 Site RS38116 Zrenjanin Serbia
    120 Site SK42102 Koshice Slovakia 04001
    121 Site SK42119 Levice Slovakia 93401
    122 Site SK42120 Lučenec Slovakia 984 01
    123 Site SK42113 Puchov Slovakia 020 01
    124 Site SK42116 Senica Slovakia 90501
    125 Site ES34041 Santiago de Compostela A Coruna Spain 15706
    126 Site ES34009 El Ejido Almeria Spain 04700
    127 Site ES34010 Alcorcon Madrid Spain 28922
    128 Site ES34030 Majadahonda Madrid Spain 28222
    129 Site ES34011 Galdakao Vizcaya Spain 48960
    130 Site ES34002 Badalona-Barcelona Spain 8916
    131 Site ES34008 Barcelona Spain 08025
    132 Site ES34006 Barcelona Spain 08035
    133 Site ES34017 Jaen Spain 23007
    134 Site ES34037 Madrid Spain 28046
    135 Site ES34052 Valencia Spain 46017
    136 Site GB44087 Brighton EastSussex United Kingdom BN2 5BD
    137 Site GB44011 Canterbury Kent United Kingdom CT1 3NG
    138 Site GB44080 Stoke on Trent Staffordshire United Kingdom ST4 6QG
    139 Site GB44008 Cambridge United Kingdom CB2 0QQ
    140 Site GB44010 Hull United Kingdom HU3 2JZ
    141 Site GB44081 Leicester United Kingdom LE5 4PW
    142 Site GB44079 Liverpool United Kingdom L9 7AL
    143 Site GB44001 Swansea United Kingdom SA6 6NL

    Sponsors and Collaborators

    • Astellas Pharma Europe B.V.
    • FibroGen

    Investigators

    • Study Director: Study Physician, Astellas Pharma Europe B.V.

    Study Documents (Full-Text)

    More Information

    Additional Information:

    Publications

    None provided.
    Responsible Party:
    Astellas Pharma Europe B.V.
    ClinicalTrials.gov Identifier:
    NCT02278341
    Other Study ID Numbers:
    • 1517-CL-0613
    • 2013-001497-16
    First Posted:
    Oct 30, 2014
    Last Update Posted:
    Feb 4, 2021
    Last Verified:
    Dec 1, 2020
    Individual Participant Data (IPD) Sharing Statement:
    Yes
    Plan to Share IPD:
    Yes
    Keywords provided by Astellas Pharma Europe B.V.
    Additional relevant MeSH terms:

    Study Results

    Participant Flow

    Recruitment Details Study population consisted of participants with end-stage renal disease (ESRD) who were on stable hemodialysis (HD) or peritoneal dialysis (PD), and were also on stable treatment with epoetin (i.e. epoetin alfa, beta, theta, zeta, delta or omega) or darbepoetin alfa for anemia.
    Pre-assignment Detail Participants were randomized in a 1:1 ratio to roxadustat or ESA (epoetin alfa or darbepoetin alfa). Randomization was stratified by 5 factors: previous ESA treatment, region, history of cardiovascular, cerebrovascular or thromboembolic diseases, average weekly ESA dose 4 weeks prior to randomization and the screening hemaglobin (Hb) value.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Period Title: Overall Study
    STARTED 415 421
    Received Treatment 414 420
    COMPLETED 297 329
    NOT COMPLETED 118 92

    Baseline Characteristics

    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent) Total
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa. Total of all reporting groups
    Overall Participants 415 421 836
    Age (Years) [Mean (Standard Deviation) ]
    Mean (Standard Deviation) [Years]
    61
    (13.8)
    61.8
    (13.4)
    61.4
    (13.6)
    Sex: Female, Male (Count of Participants)
    Female
    169
    40.7%
    185
    43.9%
    354
    42.3%
    Male
    246
    59.3%
    236
    56.1%
    482
    57.7%
    Race/Ethnicity, Customized (Count of Participants)
    WHITE
    405
    97.6%
    408
    96.9%
    813
    97.2%
    BLACK OR AFRICAN AMERICAN
    6
    1.4%
    6
    1.4%
    12
    1.4%
    ASIAN
    2
    0.5%
    3
    0.7%
    5
    0.6%
    OTHER
    2
    0.5%
    4
    1%
    6
    0.7%
    Baseline Hemoglobin (Hb) Value (Count of Participants)
    <=11.0 g/dL
    267
    64.3%
    266
    63.2%
    533
    63.8%
    >11.0 g/dL
    148
    35.7%
    155
    36.8%
    303
    36.2%
    Baseline Mean Hb (g/dL) [Mean (Standard Deviation) ]
    Mean (Standard Deviation) [g/dL]
    10.75
    (0.62)
    10.77
    (0.62)
    10.76
    (0.62)

    Outcome Measures

    1. Primary Outcome
    Title Change From Baseline (BL) to the Average Hemoglobin (Hb) in Weeks 28-36 Without Rescue Therapy [EU (EMA)]
    Description Baseline Hb was defined as the mean of four central laboratory Hb values; four latest Hb values prior or on the same date as the first study drug intake. For participants who did not have an available Hb value during the week 28-36 period, imputation rules were applied. For analyses without rescue therapy, participants who used rescue therapy after the initiation of rescue therapy were set to missing for 6 weeks from the start date of rescue therapy. If no Hb value was available, an imputation technique was used, with the mean of all available values from Day 1 to minimum (End of Efficacy Emergent Period) carried forward.
    Time Frame Baseline and weeks 28 to 36

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the Per Protocol Set (PPS) which consisted of all Full Analysis Set (FAS) participants who did not meet any of exclusion criteria from the PPS. The FAS consisted of all randomized participants who received at least one dose of study drug and had at least one post-dose valid Hb assessment.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 354 381
    Least Squares Mean (95% Confidence Interval) [g/dL]
    0.428
    0.193
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments The model includes treatment arm, region, CV History, previous ESA treatment, visits and visit by treatment as categorical variables and baseline Hb and baseline Hb by visit as continuous variable.
    Type of Statistical Test Non-Inferiority
    Comments Non Inferiority, Margin = -0.75
    Statistical Test of Hypothesis p-Value <0.001
    Comments p-value for non-inferiority test based on 1-sided significance level.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.235
    Confidence Interval (2-Sided) 95%
    0.132 to 0.339
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    2. Primary Outcome
    Title Change From BL to the Average Hb in Weeks 28 to 52 Regardless of Rescue Therapy [US (FDA)]
    Description Baseline Hb was defined as the mean of four central laboratory Hb values: four latest Hb values prior or on the same date as first study drug intake. Change from baseline to the average Hb are observed values. Missing hemoglobin data was imputed for each treatment relying on non-missing data from all participants within each treatment group using the Monte Carlo Markov Chain (MCMC) imputation model with treatment, baseline hemoglobin, randomization stratification factors and the available non missing hemoglobin for each scheduled week.
    Time Frame Baseline and weeks 28 to 52

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the All Randomized, which consisted of participants who received at least one dose of study drug, and who had available data.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 413 420
    Least Squares Mean (95% Confidence Interval) [g/dL]
    0.363
    0.192
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments The model includes treatment arm, region, CV History, previous ESA treatment as categorical variables and baseline Hb as continuous variable. Statistical analysis used was ANCOVA model with multiple imputations (MI). Missing hemoglobin data was imputed for each treatment relying on non-missing data from all participants within each treatment group using the MCMC imputation model.
    Type of Statistical Test Non-Inferiority
    Comments Non-Inferiority, Margin = -0.75
    Statistical Test of Hypothesis p-Value <0.001
    Comments p-value for non-inferiority test based on 1-sided significance level.
    Method ANCOVA
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.171
    Confidence Interval (2-Sided) 95%
    0.082 to 0.261
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    3. Secondary Outcome
    Title Percentage of Participants With Hb Response During Weeks 28 to 36
    Description Hb response during weeks 28-36, was defined as mean Hb from 10-12 g/dL without receiving rescue therapy in the 6 weeks prior to, or during, the evaluation period. The percentages and 95% CI were unadjusted, the exact method of Clopper-Pearson was used for 95% CI. The Efficacy Emergent Period was defined as the evaluation period from the Analysis date of first dose intake up to end of treatment (EOT) Visit or last non-missing Hb assessment (for participants who died during the treatment period).
    Time Frame Weeks 28 to 36

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the PPS.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 386 397
    Number (95% Confidence Interval) [Percentage of participants]
    84.2
    20.3%
    82.4
    19.6%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments A generalized linear model was used to estimate the difference in response rates between the arms, as an approximation for the Miettinen and Nurminen method, adjusting for following covariates: region, previous ESA treatment, cardiovascular history and baseline Hb as categorical variables.
    Type of Statistical Test Non-Inferiority
    Comments Non-inferiority of roxadustat versus ESA (the non-inferiority margin for the difference between groups is -15%).
    Statistical Test of Hypothesis p-Value <0.05
    Comments p-value for non-inferiority test based on 1-sided significance level.
    Method Miettinen and Nurminen
    Comments
    Method of Estimation Estimation Parameter Difference of Percentages
    Estimated Value 2.3
    Confidence Interval (2-Sided) 95%
    -2.9 to 7.6
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    4. Secondary Outcome
    Title Change From BL in Low Density Lipoprotein Cholesterol (LDL-C) to the Average LDL-C of Weeks 12 to 28
    Description Baseline LDL was defined as the LDL value on Day 1. If this value was missing, the latest value prior to first study drug administration was used.
    Time Frame Baseline and weeks 12 to 28

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the FAS, with participants who had available data.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 394 412
    Least Squares Mean (95% Confidence Interval) [mmol/L]
    -0.459
    -0.082
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments The model includes treatment arm, region, CV History, previous ESA treatment, visits and visit by treatment as categorical variables and baseline LDL, baseline Hb as continuous variables.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.001
    Comments p-value for superiority test based on 2-sided significance level
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value -0.377
    Confidence Interval (2-Sided) 95%
    -0.451 to -0.304
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    5. Secondary Outcome
    Title Mean Monthly Intravenous (IV) Iron Use
    Description Participants with no or missing medication records of IV Iron have their monthly IV Iron use set to 0 mg. For participants who took IV Iron, but without a dosing frequency, the average values were set to missing.
    Time Frame Day 1 to week 36

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the FAS, with participants who had available data.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 413 419
    Least Squares Mean (95% Confidence Interval) [mg per month]
    21.6
    53.5
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments The model includes treatment arm, region, CV History, previous ESA treatment as categorical variables and baseline Hb as continuous variable.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.001
    Comments p-value for superiority test based on 2-sided significance level
    Method ANCOVA
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value -31.9
    Confidence Interval (2-Sided) 95%
    -41.4 to -22.4
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    6. Secondary Outcome
    Title Change From BL in Short Form-36 (SF-36) Health Survey Physical Functioning (PF) Sub-score to the Average of Weeks 12 to 28
    Description Baseline SF-36 PF was defined as the SF-36 PF value on Day 1.The SF-36 is a Quality of Life (QoL) instrument designed to assess generic health concepts relevant across age, disease, and treatment groups. The SF-36 contains 36 items that measure eight scales: (1) physical functioning (PF); (2) role limitations due to physical health problems (RP); (3) bodily pain (BP); (4) social functioning (SF); (5) general health perceptions (GH); (6) role limitations due to emotional problems (RE); (7) vitality, energy or fatigue (VT); and (8) mental health(MH). Each scale is transformed into 0-100 score, with higher scores indicating better health status. The SF-36 PF consists of 11 questions focused on health and ability to do usual activities, with higher scores indicating better health status.
    Time Frame Baseline and weeks 12 to 28

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the PPS, with participants who had available data.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 376 391
    Least Squares Mean (95% Confidence Interval) [Units on a scale]
    0.050
    -0.155
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments The model includes treatment arm, region, CV History, previous ESA treatment, visits (week 8, week 12, week 28) and visit by treatment as categorical variables, and baseline SF-36 PF, baseline Hb as continuous variables.
    Type of Statistical Test Non-Inferiority
    Comments The margin for non-inferiority was -3.
    Statistical Test of Hypothesis p-Value <0.05
    Comments p-value for non-inferiority test based on 1-sided significance level
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.205
    Confidence Interval (2-Sided) 95%
    -0.649 to 1.059
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    7. Secondary Outcome
    Title Change From BL in SF-36 Vitality (VT) Sub-score to the Average of Weeks 12 to 28
    Description Baseline VT Subscore was defined as the VT value on Day 1. The SF-36 is a QoL instrument designed to assess generic health concepts relevant across age, disease, and treatment groups. The SF-36 vitality has four questions with score range from 0-100 with higher scores indicating better vitality status.
    Time Frame Baseline and weeks 12 to 28

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the PPS, with participants who had available data.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 377 391
    Least Squares Mean (95% Confidence Interval) [Units on a scale]
    0.460
    -0.396
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments The model includes treatment arm, region, CV History, previous ESA treatment, visits (week 8, week 12, week 28) and visit by treatment as categorical variables, and baseline SF-36 VT, baseline Hb as continuous variables.
    Type of Statistical Test Non-Inferiority
    Comments The margin for non-inferiority was -3.
    Statistical Test of Hypothesis p-Value <0.05
    Comments
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.856
    Confidence Interval (2-Sided) 95%
    -0.115 to 1.828
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    8. Secondary Outcome
    Title Change From BL in Mean Arterial Pressure (MAP) to the Average of Weeks 20 to 28
    Description Baseline MAP was defined as the MAP value on Day 1. If this value was missing, the latest value prior to first study drug administration was used. Mean Arterial Pressure (MAP) is derived as: MAP = (2/3)*DBP + (1/3)*SBP.
    Time Frame Baseline and weeks 20 to 28

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the PPS, with participants who had available data.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 373 388
    Least Squares Mean (95% Confidence Interval) [mmHg]
    -0.969
    -0.120
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments The model includes treatment arm, region, CV History, previous ESA treatment, visits and visit by treatment as categorical variables, and baseline MAP, baseline Hb as continuous variables.
    Type of Statistical Test Non-Inferiority
    Comments The margin for non-inferiority was 1.
    Statistical Test of Hypothesis p-Value <0.05
    Comments p-value for non-inferiority test based on 1-sided significance level
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value -0.849
    Confidence Interval (2-Sided) 95%
    -1.971 to 0.273
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    9. Secondary Outcome
    Title Time to First Occurrence of an Increase in Blood Pressure
    Description Increase in Blood Pressure was defined as either: Systolic Blood Pressure (SBP) ≥ 170 mmHg and an increase from BL ≥ 20 mmHg, or as: Diastolic Blood Pressure (DBP) ≥ 100 mmHg and an increase from BL ≥ 15 mmHg. For participants who have experienced more than one event, only their first event following study treatment was used. Data reported was analyzed by Kaplan-Meier estimate for cumulative proportion and the 95% confidence interval was calculated with Greenwood's formula.
    Time Frame Weeks 1 to 36

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the PPS, with participants who had available data.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. . Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 386 397
    Week 12
    11.7
    2.8%
    11.1
    2.6%
    Week 24
    15.9
    3.8%
    15.4
    3.7%
    Week 36
    21.1
    5.1%
    23.5
    5.6%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Hazard Ratio was calculated using stratified Cox Proportional Hazards regression stratifying on region, CV history, previous ESA treatment, and adjusting on Hb at baseline as continuous covariate. Non-inferiority was declared if the upper bound of the 95% CI is below 1.3.
    Type of Statistical Test Non-Inferiority
    Comments Non-inferiority (hazard ratio margin of 1.3).
    Statistical Test of Hypothesis p-Value <0.05
    Comments p-value for non-inferiority test based on 1-sided significance level.
    Method Regression, Cox
    Comments
    Method of Estimation Estimation Parameter Hazard Ratio (HR)
    Estimated Value 0.924
    Confidence Interval (2-Sided) 95%
    0.669 to 1.276
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    10. Secondary Outcome
    Title Change From BL in Mean Arterial Pressure (MAP) to the Average MAP Value of Weeks 20 to 28
    Description Baseline MAP was defined as the MAP value on day 1. If this value was missing, the latest value prior to first study drug administration was used. Mean Arterial Pressure (MAP) is derived as: MAP = (2/3)*DBP + (1/3)*SBP.
    Time Frame Baseline and weeks 20 to 28

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the FAS, with participants who had available data.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 381 401
    Least Squares Mean (95% Confidence Interval) [mmHg]
    -0.739
    -0.160
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments The model includes treatment arm, region, CV History, previous ESA treatment, visits and visit by treatment as categorical variables, and baseline MAP, baseline Hb as continuous variables.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value =0.308
    Comments p-value for superiority test based on 2-sided significance level.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value -0.579
    Confidence Interval (2-Sided) 95%
    -1.694 to 0.536
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    11. Secondary Outcome
    Title Time to First Occurrence of an Increase in Blood Pressure
    Description Increase in Blood Pressure was defined as either: SBP ≥ 170 mmHg and an increase from BL ≥ 20 mmHg, or as: DBP ≥ 100 mmHg and an increase from BL ≥ 15 mmHg. Data reported was analyzed by Kaplan-Meier estimate for cumulative proportion and the 95% confidence interval was calculated with Greenwood's formula.
    Time Frame Weeks 1 to 36

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the FAS, with participants who had available data.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 413 420
    Week 12
    11.6
    2.8%
    12.0
    2.9%
    Week 24
    16.1
    3.9%
    16.2
    3.8%
    Week 36
    21.2
    5.1%
    24.1
    5.7%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Hazard Ratio was calculated using stratified Cox Proportional Hazards regression stratifying on region, CV history, previous ESA treatment, and adjusting on Hb at baseline as continuous covariate. Superiority was declared if the upper bound of the 95% CI is lower than 1.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value =0.582
    Comments p-value for superiority test based on 2-sided significance level.
    Method Regression, Cox
    Comments
    Method of Estimation Estimation Parameter Hazard Ratio (HR)
    Estimated Value 0.915
    Confidence Interval (2-Sided) 95%
    0.668 to 1.254
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    12. Secondary Outcome
    Title Percentage of Participants With a Hb Response During Weeks 28 and 36 Regardless of Use of Rescue Therapy
    Description Hb response was defined as mean Hb during weeks 28 to 36 within the target range of 10.0 to 12.0 g/dL. The percentages and 95% CI are unadjusted, the exact method of Clopper-Pearson was used for 95% CI.
    Time Frame Weeks 28 to 36

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the FAS.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 413 420
    Number (95% Confidence Interval) [Percentage of participants]
    83.1
    20%
    82.1
    19.5%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments A generalized linear model was used to estimate the difference in response rates between the arms, as an approximation for the Miettinen and Nurminen method, adjusting for following covariates: region, previous ESA treatment, cardiovascular history and baseline Hb as categorical variables.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value =0.609
    Comments p-value for superiority test based on 2-sided significance level
    Method Miettinen and Nurminen method
    Comments
    Method of Estimation Estimation Parameter Difference of Percentages
    Estimated Value 1.4
    Confidence Interval (2-Sided) 95%
    -3.8 to 6.5
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    13. Secondary Outcome
    Title Change From BL in Hb to Each Postdosing Time Point
    Description Baseline Hb was defined as the mean of four latest central laboratory Hb values prior or on the same date as first study drug intake (pre-dose).
    Time Frame Baseline and weeks 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 16, 18,20, 22, 24, 26, 28, 30, 32, 34, 36, 40, 44, 48, 52, 56, 60, 64, 68, 72,76, 80, 84, 88, 92, 96, 100, and 104

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the FAS.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 413 420
    Hb Change From BL to Week 1
    0.232
    0.068
    Hb Change From BL to Week 2
    0.496
    0.054
    Hb Change From BL to Week 3
    0.633
    0.071
    Hb Change From BL to Week 4
    0.803
    0.095
    Hb Change From BL to Week 5
    0.723
    -0.045
    Hb Change From BL to Week 6
    0.868
    0.138
    Hb Change From BL to Week 7
    0.698
    -0.031
    Hb Change From BL to Week 8
    0.816
    0.116
    Hb Change From BL to Week 10
    0.640
    -0.019
    Hb Change From BL to Week 12
    0.732
    0.139
    Hb Change From BL to Week 14
    0.508
    0.005
    Hb Change From BL to Week 16
    0.613
    0.244
    Hb Change From BL to Week 18
    0.380
    0.017
    Hb Change From BL to Week 20
    0.501
    0.217
    Hb Change From BL to Week 22
    0.266
    0.069
    Hb Change From BL to Week 24
    0.262
    0.075
    Hb Change From BL to Week 26
    0.316
    0.073
    Hb Change From BL to Week 28
    0.549
    0.342
    Hb Change From BL to Week 30
    0.333
    0.106
    Hb Change From BL to Week 32
    0.310
    0.111
    Hb Change From BL to Week 34
    0.364
    0.084
    Hb Change From BL to Week 36
    0.482
    0.225
    Hb Change From BL to Week 40
    0.199
    0.064
    Hb Change From BL to Week 44
    0.335
    0.252
    Hb Change From BL to Week 48
    0.158
    0.131
    Hb Change From BL to Week 52
    0.385
    0.186
    Hb Change From BL to Week 56
    0.217
    0.069
    Hb Change From BL to Week 60
    0.368
    0.171
    Hb Change From BL to Week 64
    0.181
    -0.093
    Hb Change From BL to Week 68
    0.306
    0.100
    Hb Change From BL to Week 72
    0.109
    -0.009
    Hb Change From BL to Week 76
    0.401
    0.189
    Hb Change From BL to Week 80
    0.087
    -0.015
    Hb Change From BL to Week 84
    0.318
    0.126
    Hb Change From BL to Week 88
    0.026
    -0.018
    Hb Change From BL to Week 92
    0.357
    0.154
    Hb Change From BL to Week 96
    0.126
    -0.058
    Hb Change From BL to Week 100
    0.302
    0.138
    Hb Change From BL to Week 104
    0.232
    0.133
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Week 1- The model included treatment, visit, visit by treatment interaction, Previous ESA Treatment, region and history of CV disease as fixed class factors and baseline Hb as continuous covariates.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.001
    Comments p-value for superiority test based on 2-sided significance level.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.164
    Confidence Interval (2-Sided) 95%
    0.072 to 0.256
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 2
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Week 2- The model included treatment, visit, visit by treatment interaction, Previous ESA Treatment, region and history of CV disease as fixed class factors and baseline Hb as continuous covariates.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.001
    Comments p-value for superiority test based on 2-sided significance level.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.443
    Confidence Interval (2-Sided) 95%
    0.339 to 0.546
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 3
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Week 3 - The model included treatment, visit, visit by treatment interaction, Previous ESA Treatment, region and history of CV disease as fixed class factors and baseline Hb as continuous covariates.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.001
    Comments p-value for superiority test based on 2-sided significance level.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.561
    Confidence Interval (2-Sided) 95%
    0.451 to 0.672
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 4
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Week 4 - The model included treatment, visit, visit by treatment interaction, Previous ESA Treatment, region and history of CV disease as fixed class factors and baseline Hb as continuous covariates.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.001
    Comments p-value for superiority test based on 2-sided significance level.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.708
    Confidence Interval () 95%
    0.588 to 0.828
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 5
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Week 5 - The model included treatment, visit, visit by treatment interaction, Previous ESA Treatment, region and history of CV disease as fixed class factors and baseline Hb as continuous covariates.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.001
    Comments p-value for superiority test based on 2-sided significance level.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.768
    Confidence Interval (2-Sided) 95%
    0.645 to 0.890
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 6
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Week 6 - The model included treatment, visit, visit by treatment interaction, Previous ESA Treatment, region and history of CV disease as fixed class factors and baseline Hb as continuous covariates.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.001
    Comments p-value for superiority test based on 2-sided significance level.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.729
    Confidence Interval (2-Sided) 95%
    0.604 to 0.855
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 7
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Week 7 - The model included treatment, visit, visit by treatment interaction, Previous ESA Treatment, region and history of CV disease as fixed class factors and baseline Hb as continuous covariates.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.001
    Comments p-value for superiority test based on 2-sided significance level.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.729
    Confidence Interval (2-Sided) 95%
    0.603 to 0.856
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 8
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Week 8 - The model included treatment, visit, visit by treatment interaction, Previous ESA Treatment, region and history of CV disease as fixed class factors and baseline Hb as continuous covariates.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.001
    Comments p-value for superiority test based on 2-sided significance level.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.700
    Confidence Interval (2-Sided) 95%
    0.574 to 0.826
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 9
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Week 10 - The model included treatment, visit, visit by treatment interaction, Previous ESA Treatment, region and history of CV disease as fixed class factors and baseline Hb as continuous covariates.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.001
    Comments p-value for superiority test based on 2-sided significance level.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.659
    Confidence Interval (2-Sided) 95%
    0.530 to 0.788
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 10
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Week 12 - The model included treatment, visit, visit by treatment interaction, Previous ESA Treatment, region and history of CV disease as fixed class factors and baseline Hb as continuous covariates.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.001
    Comments p-value for superiority test based on 2-sided significance level.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.593
    Confidence Interval (2-Sided) 95%
    0.459 to 0.727
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 11
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Week 14 - The model included treatment, visit, visit by treatment interaction, Previous ESA Treatment, region and history of CV disease as fixed class factors and baseline Hb as continuous covariates.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.001
    Comments p-value for superiority test based on 2-sided significance level.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.503
    Confidence Interval (2-Sided) 95%
    0.366 to 0.640
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 12
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Week 16 - The model included treatment, visit, visit by treatment interaction, Previous ESA Treatment, region and history of CV disease as fixed class factors and baseline Hb as continuous covariates.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.001
    Comments p-value for superiority test based on 2-sided significance level.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.369
    Confidence Interval (2-Sided) 95%
    0.229 to 0.510
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 13
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Week 18 - The model included treatment, visit, visit by treatment interaction, Previous ESA Treatment, region and history of CV disease as fixed class factors and baseline Hb as continuous covariates.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.001
    Comments p-value for superiority test based on 2-sided significance level.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.363
    Confidence Interval (2-Sided) 95%
    0.230 to 0.496
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 14
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Week 20 - The model included treatment, visit, visit by treatment interaction, Previous ESA Treatment, region and history of CV disease as fixed class factors and baseline Hb as continuous covariates.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.001
    Comments p-value for superiority test based on 2-sided significance level.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.284
    Confidence Interval (2-Sided) 95%
    0.154 to 0.414
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 15
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Week 22 - The model included treatment, visit, visit by treatment interaction, Previous ESA Treatment, region and history of CV disease as fixed class factors and baseline Hb as continuous covariates.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value =0.003
    Comments p-value for superiority test based on 2-sided significance level.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.197
    Confidence Interval (2-Sided) 95%
    0.065 to 0.329
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 16
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Week 24 - The model included treatment, visit, visit by treatment interaction, Previous ESA Treatment, region and history of CV disease as fixed class factors and baseline Hb as continuous covariates.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value =0.004
    Comments p-value for superiority test based on 2-sided significance level.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.187
    Confidence Interval (2-Sided) 95%
    0.059 to 0.316
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 17
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Week 26 - The model included treatment, visit, visit by treatment interaction, Previous ESA Treatment, region and history of CV disease as fixed class factors and baseline Hb as continuous covariates.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.001
    Comments p-value for superiority test based on 2-sided significance level.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.243
    Confidence Interval (2-Sided) 95%
    0.113 to 0.373
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 18
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Week 28 - The model included treatment, visit, visit by treatment interaction, Previous ESA Treatment, region and history of CV disease as fixed class factors and baseline Hb as continuous covariates.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value =0.002
    Comments p-value for superiority test based on 2-sided significance level.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.207
    Confidence Interval (2-Sided) 95%
    0.074 to 0.340
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 19
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Week 30 - The model included treatment, visit, visit by treatment interaction, Previous ESA Treatment, region and history of CV disease as fixed class factors and baseline Hb as continuous covariates.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.001
    Comments p-value for superiority test based on 2-sided significance level.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.227
    Confidence Interval (2-Sided) 95%
    0.096 to 0.358
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 20
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Week 32 - The model included treatment, visit, visit by treatment interaction, Previous ESA Treatment, region and history of CV disease as fixed class factors and baseline Hb as continuous covariates.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value =0.004
    Comments
    Method Mixed Models Analysis
    Comments p-value for superiority test based on 2-sided significance level.
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.199
    Confidence Interval (2-Sided) 95%
    0.064 to 0.334
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 21
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Week 34 - The model included treatment, visit, visit by treatment interaction, Previous ESA Treatment, region and history of CV disease as fixed class factors and baseline Hb as continuous covariates.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.001
    Comments p-value for superiority test based on 2-sided significance level.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.279
    Confidence Interval () 95%
    0.150 to 0.409
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 22
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Week 36- The model included treatment, visit, visit by treatment interaction, Previous ESA Treatment, region and history of CV disease as fixed class factors and baseline Hb as continuous covariates.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.001
    Comments p-value for superiority test based on 2-sided significance level.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.256
    Confidence Interval (2-Sided) 95%
    0.121 to 0.391
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 23
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Week 40 - The model included treatment, visit, visit by treatment interaction, Previous ESA Treatment, region and history of CV disease as fixed class factors and baseline Hb as continuous covariates.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value =0.060
    Comments p-value for superiority test based on 2-sided significance level.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.136
    Confidence Interval (2-Sided) 95%
    -0.006 to 0.277
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 24
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Week 44 - The model included treatment, visit, visit by treatment interaction, Previous ESA Treatment, region and history of CV disease as fixed class factors and baseline Hb as continuous covariates.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value =0.293
    Comments p-value for superiority test based on 2-sided significance level.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.082
    Confidence Interval (2-Sided) 95%
    -0.071 to 0.236
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 25
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Week 48 - The model included treatment, visit, visit by treatment interaction, Previous ESA Treatment, region and history of CV disease as fixed class factors and baseline Hb as continuous covariates.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value =0.723
    Comments p-value for superiority test based on 2-sided significance level.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.027
    Confidence Interval (2-Sided) 95%
    -0.123 to 0.177
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 26
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Week 52 - The model included treatment, visit, visit by treatment interaction, Previous ESA Treatment, region and history of CV disease as fixed class factors and baseline Hb as continuous covariates.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value =0.009
    Comments p-value for superiority test based on 2-sided significance level.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.199
    Confidence Interval (2-Sided) 95%
    0.049 to 0.348
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 27
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Week 56 - The model included treatment, visit, visit by treatment interaction, Previous ESA Treatment, region and history of CV disease as fixed class factors and baseline Hb as continuous covariates.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value =0.056
    Comments p-value for superiority test based on 2-sided significance level.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.147
    Confidence Interval (2-Sided) 95%
    -0.004 to 0.298
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 28
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Week 60 - The model included treatment, visit, visit by treatment interaction, Previous ESA Treatment, region and history of CV disease as fixed class factors and baseline Hb as continuous covariates.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value =0.010
    Comments p-value for superiority test based on 2-sided significance level.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.196
    Confidence Interval (2-Sided) 95%
    0.047 to 0.346
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 29
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Week 64 - The model included treatment, visit, visit by treatment interaction, Previous ESA Treatment, region and history of CV disease as fixed class factors and baseline Hb as continuous covariates.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.001
    Comments p-value for superiority test based on 2-sided significance level.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.275
    Confidence Interval (2-Sided) 95%
    0.123 to 0.427
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 30
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Week 68 - The model included treatment, visit, visit by treatment interaction, Previous ESA Treatment, region and history of CV disease as fixed class factors and baseline Hb as continuous covariates.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value =0.006
    Comments p-value for superiority test based on 2-sided significance level.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.206
    Confidence Interval (2-Sided) 95%
    0.059 to 0.353
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 31
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Week 72 - The model included treatment, visit, visit by treatment interaction, Previous ESA Treatment, region and history of CV disease as fixed class factors and baseline Hb as continuous covariates.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value =0.127
    Comments p-value for superiority test based on 2-sided significance level.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.118
    Confidence Interval (2-Sided) 95%
    -0.033 to 0.269
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 32
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Week 76 - The model included treatment, visit, visit by treatment interaction, Previous ESA Treatment, region and history of CV disease as fixed class factors and baseline Hb as continuous covariates.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value =0.010
    Comments p-value for superiority test based on 2-sided significance level.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.211
    Confidence Interval (2-Sided) 95%
    0.051 to 0.371
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 33
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Week 80 - The model included treatment, visit, visit by treatment interaction, Previous ESA Treatment, region and history of CV disease as fixed class factors and baseline Hb as continuous covariates.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value =0.191
    Comments p-value for superiority test based on 2-sided significance level.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.102
    Confidence Interval (2-Sided) 95%
    -0.051 to 0.255
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 34
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Week 84 - The model included treatment, visit, visit by treatment interaction, Previous ESA Treatment, region and history of CV disease as fixed class factors and baseline Hb as continuous covariates.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value =0.018
    Comments p-value for superiority test based on 2-sided significance level.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.192
    Confidence Interval (2-Sided) 95%
    0.033 to 0.351
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 35
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Week 88 - The model included treatment, visit, visit by treatment interaction, Previous ESA Treatment, region and history of CV disease as fixed class factors and baseline Hb as continuous covariates.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value =0.576
    Comments p-value for superiority test based on 2-sided significance level.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.044
    Confidence Interval (2-Sided) 95%
    -0.111 to 0.200
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 36
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Week 92 - The model included treatment, visit, visit by treatment interaction, Previous ESA Treatment, region and history of CV disease as fixed class factors and baseline Hb as continuous covariates.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value =0.017
    Comments p-value for superiority test based on 2-sided significance level.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.203
    Confidence Interval (2-Sided) 95%
    0.037 to 0.369
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 37
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Week 96 - The model included treatment, visit, visit by treatment interaction, Previous ESA Treatment, region and history of CV disease as fixed class factors and baseline Hb as continuous covariates.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value =0.019
    Comments p-value for superiority test based on 2-sided significance level.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.184
    Confidence Interval (2-Sided) 95%
    0.031 to 0.338
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 38
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Week 100 - The model included treatment, visit, visit by treatment interaction, Previous ESA Treatment, region and history of CV disease as fixed class factors and baseline Hb as continuous covariates.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value =0.056
    Comments p-value for superiority test based on 2-sided significance level.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.164
    Confidence Interval () 95%
    -0.004 to 0.333
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 39
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Week 104 - The model included treatment, visit, visit by treatment interaction, Previous ESA Treatment, region and history of CV disease as fixed class factors and baseline Hb as continuous covariates.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value =0.267
    Comments p-value for superiority test based on 2-sided significance level.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.099
    Confidence Interval (2-Sided) 95%
    -0.076 to 0.273
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    14. Secondary Outcome
    Title Hb Level Averaged Over Weeks 28 to 36, 44 to 52, and 96 to 104 Without Use of Rescue Therapy
    Description Baseline Hb was defined as the mean of four latest central laboratory Hb values prior or on the same date as first study drug intake (pre-dose). Averaged Hb values over weeks 28-36, weeks 44-52 and weeks 96-104 are observed values.
    Time Frame Weeks 28 to 36, 44 to 52, and 96 to 104

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the FAS.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 413 420
    Average Hb Over Weeks 28-36
    11.183
    10.946
    Average Hb Over Weeks 44-52
    11.099
    10.994
    Average Hb Over Weeks 96-104
    11.007
    10.858
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Weeks 28-36 - The model includes treatment arm, region, CV History, previous ESA treatment, visits and visit by treatment as categorical variables and baseline Hb as continuous variable.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.001
    Comments p-value for superiority test based on 2-sided significance level.
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.237
    Confidence Interval (2-Sided) 95%
    0.127 to 0.347
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 2
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Weeks 44-52 - The model includes treatment arm, region, CV History, previous ESA treatment, visits and visit by treatment as categorical variables and baseline Hb as continuous variable.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value =0.086
    Comments p-value for superiority test based on 2-sided significance level
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.105
    Confidence Interval (2-Sided) 95%
    -0.015 to 0.225
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 3
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Weeks 96-104 - The model includes treatment arm, region, CV History, previous ESA treatment, visits and visit by treatment as categorical variables and baseline Hb as continuous variable.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value =0.031
    Comments p-value for superiority test based on 2-sided significance level
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.149
    Confidence Interval (2-Sided) 95%
    0.014 to 0.284
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    15. Secondary Outcome
    Title Change From BL in Hb to the Average of Weeks 28 to 36, 44 to 52, and 96 to 104 Regardless of the Use of Rescue Therapy
    Description Change from baseline to the average Hb are observed values. Baseline Hb was defined as the mean of four latest central laboratory Hb values prior or on the same date as first study drug intake (pre-dose).
    Time Frame Baseline and weeks 28 to 36, 44 to 52, and 96 to 104

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the FAS.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 413 420
    Hb Change From BL to Weeks 28-36
    0.408
    0.173
    Hb Change From BL to Weeks 44-52
    0.298
    0.194
    Hb Change From BL to Weeks 96-104
    0.225
    0.076
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Weeks 28-36 - The model includes treatment arm, region, CV History, previous ESA treatment, visits and visit by treatment as categorical variables and baseline Hb as continuous variable.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.001
    Comments
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.235
    Confidence Interval (2-Sided) 95%
    0.125 to 0.346
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 2
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Weeks 44-52 - The model includes treatment arm, region, CV History, previous ESA treatment, visits and visit by treatment as categorical variables and baseline Hb as continuous variable.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value =0.110
    Comments
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.104
    Confidence Interval (2-Sided) 95%
    -0.024 to 0.232
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 3
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Weeks 96-104 - The model includes treatment arm, region, CV History, previous ESA treatment, visits and visit by treatment as categorical variables and baseline Hb as continuous variable.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value =0.036
    Comments
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.149
    Confidence Interval (2-Sided) 95%
    0.010 to 0.288
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    16. Secondary Outcome
    Title Percentage of Hb Values ≥ 10 g/dL in Weeks 28 to 36, 44 to 52, and 96 to 104 Without Use of Rescue Therapy
    Description Percentage for each participant was calculated as Number of Hb values >= 10.0 g/dL / Total number of Hb values*100 in weeks 28 to 36, 44 to 52 and 96 to 104 without use of rescue therapy within 6 weeks prior to and during the 8 week evaluation period.
    Time Frame Weeks 28-36, 44-52 and 96-104

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the FAS.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 413 420
    Weeks 28-36
    93.002
    (18.320)
    87.286
    (25.114)
    Weeks 44-52
    89.421
    (24.267)
    86.914
    (25.366)
    Weeks 96-104
    88.858
    (24.708)
    83.543
    (30.296)
    17. Secondary Outcome
    Title Percentage of Hb Values Within 10.0 to 12.0 g/dL in Weeks 28 to 36, 44 to 52, and 96 to 104 Without Use of Rescue Therapy
    Description Percentage for each participant was calculated as Number of Hb values within 10.0-12.0 g/dL / Total number of Hb values*100 in weeks 28 to 36, 44 to 52 and 96 to 104 without use of rescue therapy within 6 weeks prior to and during the 8 week evaluation period.
    Time Frame Weeks 28-36, 44-52 and 96-104

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the FAS.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 413 420
    Weeks 28-36
    76.326
    (28.175)
    76.098
    (28.991)
    Weeks 44-52
    75.891
    (31.047)
    74.634
    (30.589)
    Weeks 96-104
    76.522
    (30.378)
    73.690
    (33.040)
    18. Secondary Outcome
    Title Number of Hospitalizations
    Description The number of hospitalizations per participant were calculated during the Efficacy Emergent Period. The Efficacy Emergent Period was defined as the evaluation period from the Analysis date of first dose intake up to EOT Visit or last non-missing Hb assessment (for participants who died during the treatment period). It included all Non-Hemodialysis (HD) hospitalizations. The HD days were not counted as hospitalizations, even when performed overnight.
    Time Frame Baseline to End of Treatment (EOT) (Up to week 104)

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the FAS, with participants who had available data.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 413 420
    Mean (Standard Deviation) [Hospitalizations]
    0.9
    (1.3)
    0.9
    (1.5)
    19. Secondary Outcome
    Title Number of Days of Hospitalization Per Year
    Description The number of days of hospitalizations per year was calculated as the sum of the durations of all non-HD hospitalizations in days (Date of discharge - Date of admission + 1)] / (duration of efficacy emergent period in days / 365.25). In case of missing dates, the hospitalization duration was imputed by the average duration per stay derived from the participants with non-missing duration within the same treatment group.
    Time Frame Baseline to EOT (Up to week 104)

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the FAS, with participants who had available data.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 413 420
    Mean (Standard Deviation) [Days per year]
    12.186
    (34.121)
    7.868
    (22.948)
    20. Secondary Outcome
    Title Time to First Hospitalization
    Description Time to first hospitalization in years was defined in years as: (First event date during the Efficacy Emergent Period - Analysis date of First dose intake +1)/365.25, and the 'First event date' was defined as 'Date of first Admission and 'Analysis Date of first dose intake. For participants without hospitalization, the time to censoring was calculated as: (Date of End of Efficacy Emergent Period - Analysis Date of first dose intake + 1) / 365.25. Date of End of Efficacy Emergent Period was defined as as the treatment period up to the EOT visit. For participants who have experienced more than one hospitalization, only their first event following study treatment was used. Data reported was analyzed by Kaplan-Meier estimate for cumulative proportion and the 95% confidence interval was calculated with Greenwood's formula.
    Time Frame Baseline to EOT (Up to week 104)

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the FAS.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 413 420
    Year 0.5
    19.4
    4.7%
    18.3
    4.3%
    Year 1
    32.0
    7.7%
    32.7
    7.8%
    Year 1.5
    43.5
    10.5%
    41.9
    10%
    Year 2
    52.6
    12.7%
    48.3
    11.5%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Hazard Ratio was calculated using stratified Cox Proportional Hazards regression stratifying on region, CV history, previous ESA treatment and adjusting on Hb at baseline as continuous covariate. Superiority was declared if the upper bound of the 95% CI was below 1.0.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value =0.164
    Comments p-value for superiority test based on 2-sided significance level
    Method Regression, Cox
    Comments
    Method of Estimation Estimation Parameter Hazard Ratio (HR)
    Estimated Value 1.154
    Confidence Interval (2-Sided) 95%
    0.943 to 1.411
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    21. Secondary Outcome
    Title Time to First Use of Rescue Therapy
    Description Rescue therapy was defined as red blood cell (RBC) transfusion for both treatment groups and ESA for roxadustat participants. Only rescue medication that was started during the study treatment and up to end of efficacy emergent period was taken into account and considered as use of rescue medication. For participants who have experienced more than one use of rescue therapy, only their first event following study treatment was used. Data reported was analyzed by Kaplan-Meier estimate for cumulative proportion and the 95% confidence interval was calculated with Greenwood's formula.
    Time Frame Baseline to EOT (Up to week 104)

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the FAS.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 413 420
    Year 0.5
    3.9
    0.9%
    3.2
    0.8%
    Year 1
    8.2
    2%
    8.4
    2%
    Year 1.5
    11.4
    2.7%
    10.9
    2.6%
    Year 2
    12.8
    3.1%
    14.4
    3.4%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Hazard Ratio was calculated using stratified Cox Proportional Hazards regression stratifying on region, CV history, previous ESA treatment and adjusting on Hb at baseline as continuous covariate. Superiority was declared if the upper bound of the 95% CI was below 1.0.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value =0.917
    Comments
    Method Regression, Cox
    Comments
    Method of Estimation Estimation Parameter Hazard Ratio (HR)
    Estimated Value 0.979
    Confidence Interval (2-Sided) 95%
    0.656 to 1.462
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    22. Secondary Outcome
    Title Time to First RBC Transfusion
    Description For participants who have experienced more than one RBC transfusion, only their first event following study treatment was used. For RBC transfusions, when the number of units was not given but the volume transfused was, the number of units were estimated by volume transfused/250 mL (for transfusion of packed cell units) or volume transfused/500 mL (for transfusion of full blood). Data reported was analyzed by Kaplan-Meier estimate for cumulative proportion and the 95% confidence interval was calculated with Greenwood's formula.
    Time Frame Baseline to EOT (Up to week 104)

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the FAS.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 413 420
    Year 0.5
    3.6
    0.9%
    3.2
    0.8%
    Year 1
    7.4
    1.8%
    8.4
    2%
    Year 1.5
    10.0
    2.4%
    10.9
    2.6%
    Year 2
    11.4
    2.7%
    14.4
    3.4%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Hazard Ratio was calculated using stratified Cox Proportional Hazards regression stratifying on region, CV history, previous ESA treatment, and adjusting on Hb at baseline as continuous covariate. Superiority was declared if the upper bound of the 95% CI was below 1.0.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value =0.501
    Comments p-value for superiority test based on 2-sided significance level
    Method Regression, Cox
    Comments
    Method of Estimation Estimation Parameter Hazard Ratio (HR)
    Estimated Value 0.867
    Confidence Interval (2-Sided) 95%
    0.573 to 1.313
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    23. Secondary Outcome
    Title Mean Monthly Number of RBC Packs Per Participant
    Description During efficacy emergent period, the mean monthly number of RBC packs was calculated as the sum of blood volume and units transfused between the first dose and up to the last dose in the period divided by duration of efficacy emergent period (in days) divided by 28 days. Participants without medication records of RBC have their number of RBC packs and volume set to 0.
    Time Frame Baseline to EOT (Up to week 104)

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the FAS.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 413 420
    Least Squares Mean (95% Confidence Interval) [RBC packs per month]
    0.026
    0.032
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments The model included treatment arm, region, CV History, previous ESA treatment as categorical variables and baseline Hb as continuous variable.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value =0.507
    Comments p-value for superiority test based on 2-sided significance level
    Method ANCOVA
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value -0.006
    Confidence Interval (2-Sided) 95%
    -0.02 to 0.01
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    24. Secondary Outcome
    Title Mean Monthly Volume of RBC Transfusion Per Participant
    Description During Efficacy Emergent Period, the mean monthly volume of blood transfused was calculated as the sum of blood volume and units transfused between the first dose and up to the last dose in the period divided by duration of efficacy emergent period (in days) divided by 28 days. The Efficacy Emergent Period was defined as the evaluation period from the Analysis date of first dose intake up to EOT Visit or last non-missing Hb assessment (for participants who died during the treatment period).
    Time Frame Baseline to EOT (Up to week 104)

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the FAS.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 413 420
    Least Squares Mean (95% Confidence Interval) [mL per month]
    6.061
    5.929
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments The model included treatment arm, region, CV History, previous ESA treatment as categorical variables and baseline Hb as continuous variable.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value =0.949
    Comments
    Method ANCOVA
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.132
    Confidence Interval (2-Sided) 95%
    -3.90 to 4.16
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    25. Secondary Outcome
    Title Time to First Use of IV Iron Supplementation
    Description For participants who have received more than one IV iron, only their first event following study treatment was used. Data reported was analyzed by Kaplan-Meier estimate for cumulative proportion and the 95% confidence interval was calculated with Greenwood's formula.
    Time Frame Baseline to EOT (Up to week 104)

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the FAS.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 413 420
    Year 0.5
    11.2
    2.7%
    33.5
    8%
    Year 1
    17.4
    4.2%
    44.1
    10.5%
    Year 1.5
    23.6
    5.7%
    55.0
    13.1%
    Year 2
    33.3
    8%
    59.3
    14.1%
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Hazard Ratio was calculated using stratified Cox Proportional Hazards regression stratifying on region, CV history, previous ESA treatment and adjusting on Hb at baseline as continuous covariate. Superiority was declared if the upper bound of the 95% CI was below 1.0.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.001
    Comments
    Method Regression, Cox
    Comments
    Method of Estimation Estimation Parameter Hazard Ratio (HR)
    Estimated Value 0.368
    Confidence Interval (2-Sided) 95%
    0.291 to 0.465
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    26. Secondary Outcome
    Title Mean Monthly Intravenous (IV) Iron Per Participant During Weeks 37-52 and Weeks 53-104
    Description Participants with no or missing medication records of IV Iron had their monthly IV Iron use set to 0 mg.
    Time Frame Weeks 37-52 and weeks 53-104

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the FAS.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 413 420
    Weeks 37-52
    34.9
    70.0
    Weeks 53-104
    49.5
    98.1
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Weeks 37-52 - Participants with no or missing medication records of IV Iron had their monthly IV Iron use set to 0 mg. The model includes treatment arm, region, CV History, previous ESA treatment as categorical variables and baseline Hb as continuous variable.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.001
    Comments
    Method ANCOVA
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value -35.1
    Confidence Interval (2-Sided) 95%
    -51.8 to -18.4
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    Statistical Analysis 2
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments Weeks 53-104 - Participants with no or missing medication records of IV Iron had their monthly IV Iron use set to 0 mg. The model includes treatment arm, region, CV History, previous ESA treatment as categorical variables and baseline Hb as continuous variable.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.001
    Comments
    Method ANCOVA
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value -48.7
    Confidence Interval (2-Sided) 95%
    -70.3 to -27.0
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    27. Secondary Outcome
    Title Percentage of Participants With Oral Iron Use Only
    Description Percentage of participants with/without IV iron only was calculated based on total number of participants within the Efficacy Emergent Period. The Efficacy Emergent Period is defined as the evaluation period from the Analysis date of first dose intake up to EOT Visit or last non-missing Hb assessment (for participants who died during the treatment period).
    Time Frame Baseline to EOT (Up to week 104)

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the FAS.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 413 420
    Number [Percentage of participants]
    31.0
    7.5%
    11.7
    2.8%
    28. Secondary Outcome
    Title Change From BL to Each Post-dosing Study Visit in Total Cholesterol
    Description Baseline assessment was the assessment from Day 1 visit. If baseline value was missing, then the latest screening period value was used as the baseline regardless of fasting status.
    Time Frame Baseline and weeks 8, 28, 52, 104

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the FAS.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 413 420
    Change from BL to Week 8
    -0.608
    (0.889)
    -0.105
    (0.712)
    Change from BL to Week 28
    -0.641
    (0.960)
    -0.135
    (0.805)
    Change from BL to Week 52
    -0.803
    (1.027)
    -0.241
    (0.906)
    Change from BL to Week 104
    -0.904
    (1.053)
    -0.277
    (1.002)
    29. Secondary Outcome
    Title Change From BL to Each Post-dosing Study Visit in LDL-C/High-density Lipoprotein Cholesterol (HDL-C) Ratio
    Description Baseline was defined as the value on Day 1. If baseline value was missing, the latest value prior to first study drug administration was used regardless of fasting.
    Time Frame Baseline and weeks 8, 28, 52, 104

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the FAS.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 413 420
    Change from BL to Week 8
    -0.245
    (0.818)
    -0.060
    (0.726)
    Change from BL to Week 28
    -0.155
    (1.046)
    -0.057
    (0.922)
    Change from BL to Week 52
    -0.345
    (0.904)
    -0.078
    (0.886)
    Change from BL to Week 104
    -0.261
    (1.167)
    -0.013
    (1.048)
    30. Secondary Outcome
    Title Change From BL to Each Postdosing Study Visit in Non-HDL Cholesterol
    Description Baseline was defined as the value on Day 1. If baseline value was missing, the latest value prior to first study drug administration was used regardless of fasting.
    Time Frame Baseline and weeks 8, 28, 52, 104

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the FAS.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 413 420
    Change from BL to Week 8
    -0.518
    (0.823)
    -0.107
    (0.701)
    Change from BL to Week 28
    -0.540
    (0.907)
    -0.127
    (0.789)
    Change from BL to Week 52
    -0.700
    (0.965)
    -0.229
    (0.886)
    Change from BL to Week 104
    -0.788
    (1.024)
    -0.240
    (1.010)
    31. Secondary Outcome
    Title Change From BL to Each Postdosing Study Visit in Apolipoproteins A1 (ApoA1)
    Description Baseline was defined as the value on Day 1. If baseline value was missing, the latest value prior to first study drug administration was used regardless of fasting.
    Time Frame Baseline and weeks 8, 28, 52, 104

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the FAS.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 413 420
    Change from BL to Week 8
    -0.114
    (0.197)
    -0.006
    (0.172)
    Change from BL to Week 28
    -0.113
    (0.217)
    -0.012
    (0.193)
    Change from BL to Week 52
    -0.097
    (0.230)
    -0.013
    (0.195)
    Change from BL to Week 104
    -0.097
    (0.220)
    -0.012
    (0.196)
    32. Secondary Outcome
    Title Change From BL to Each Postdosing Study Visit in Apolipoproteins B (ApoB)
    Description Baseline was defined as the value on Day 1. If baseline value was missing, the latest value prior to first study drug administration was used regardless of fasting.
    Time Frame Baseline and weeks 8, 28, 52, 104

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the FAS.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 413 420
    Change from BL to Week 8
    -11.03
    (18.49)
    1.00
    (14.34)
    Change from BL to Week 28
    -11.18
    (20.39)
    -0.12
    (16.91)
    Change from BL to Week 52
    -13.18
    (20.67)
    -0.01
    (18.88)
    Change from BL to Week 104
    -13.50
    (24.94)
    -0.01
    (20.00)
    33. Secondary Outcome
    Title Change From BL to Each Postdosing Study Visit in ApoB/ApoA1 Ratio
    Description Baseline was defined as the value on Day 1. If baseline value was missing, the latest value prior to first study drug administration was used.
    Time Frame Baseline and weeks 8, 28, 52, 104

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the FAS.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 413 420
    Change from BL to Week 8
    -0.037
    (0.147)
    0.013
    (0.141)
    Change from BL to Week 28
    -0.034
    (0.177)
    0.002
    (0.148)
    Change from BL to Week 52
    -0.051
    (0.191)
    0.007
    (0.164)
    Change from BL to Week 104
    -0.062
    (0.210)
    0.007
    (0.201)
    34. Secondary Outcome
    Title Number of Participants With Mean LDL Cholesterol < 100 mg/dL Over Weeks 12 to 28
    Description Missing category for Fasting Only includes non-fasting participants and the participants with missing values.
    Time Frame Weeks 12 to 28

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the FAS.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 413 420
    Yes [Regardless of Fasting Status]
    275
    66.3%
    231
    54.9%
    No [Regardless of Fasting Status]
    119
    28.7%
    181
    43%
    Missing [Regardless of Fasting Status]
    19
    4.6%
    8
    1.9%
    Yes [Fasting Only]
    111
    26.7%
    85
    20.2%
    No [Fasting Only]
    61
    14.7%
    80
    19%
    Missing [Fasting Only]
    241
    58.1%
    255
    60.6%
    35. Secondary Outcome
    Title Number of Participants With CKD Who Achieved Antihypertensive Treatment Goal
    Description Achieved antihypertensive treatment goal was defined as SBP < 140 mmHg and DBP < 90 mmHg over an evaluation period based on the average of available values in weeks 12-28 (pre-dialysis).
    Time Frame Weeks 12 to 28

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the FAS.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 413 420
    Antihypertensive Treatment Achievement - Yes
    264
    63.6%
    261
    62%
    Antihypertensive Treatment Achievement - No
    130
    31.3%
    149
    35.4%
    Antihypertensive Treatment Achievement-Missing
    19
    4.6%
    10
    2.4%
    36. Secondary Outcome
    Title Change From BL to the Average of Weeks 12 to 28 in SF-36 Physical Component Score (PCS)
    Description Baseline SF-36 PCS was defined as the SF-36 PCS value on Day 1. SF-36 contains 36-item that measures 8 scales with scores ranging from 0-100: physical functioning (PF); role limitations due to physical health problems (RP); bodily pain (BP); social functioning (SF); general health perceptions (GH); role limitations due to emotional problems (RE); vitality, energy or fatigue (VT); and mental health (MH). These scores are normed to the US population (norm-based scoring had very little impact on results when data was collected in Western European countries) to have a mean of 50 and standard deviation of 10. The PCS was calculated based on all 8 scales and ranges from 5.02-79.78. For each of these above scales, higher scores always indicating better health status.
    Time Frame Baseline and weeks 12 to 28

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the FAS.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 384 404
    Least Squares Mean (95% Confidence Interval) [Units on a scale]
    0.560
    0.039
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments The model includes treatment, visit, visit by treatment interaction, Previous ESA Treatment, region and history of CV disease as fixed class factors and baseline SF-36 PCS, baseline Hb, as continuous covariates.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value =0.161
    Comments p-value for superiority test based on 2-sided significance level
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.521
    Confidence Interval (2-Sided) 95%
    -0.208 to 1.250
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    37. Secondary Outcome
    Title Change From BL to the Average of Weeks 12 to 28 in Anemia Subscale (AnS) ("Additional Concerns") of Functional Assessment of Cancer Therapy-Anemia (FACT-An) Score
    Description Baseline FACT-An AnS was defined as the FACT-An AnS value on Day 1. Together with the Functional Assessment of Cancer Therapy - General (FACT-G), the Anemia Subscale (AnS) is referred to as the FACT-An Total. The AnS scale contains 13 fatigue specific items (the Fatigue Score) plus 7 items related to anemia. The Anemia AnS score range is 0 to 80. For the above score, a higher score indicates better QoL.
    Time Frame Baseline and weeks 12 to 28

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the FAS.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 384 403
    Least Squares Mean (95% Confidence Interval) [Units on a scale]
    0.400
    0.274
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments The model includes treatment, visit, visit by treatment interaction, Previous ESA Treatment, region and history of CV disease as fixed class factors and baseline FACT-An Ans, baseline Hb, as continuous covariates.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value =0.845
    Comments p-value for superiority test based on 2-sided significance level
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value 0.126
    Confidence Interval (2-Sided) 95%
    -1.135 to 1.387
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    38. Secondary Outcome
    Title Change From BL to the Average Value of Weeks 12 to 28 in Total FACT-An Score
    Description Baseline FACT-An Total Score was defined on Day 1. Total Fact-An score is composed of FACT-G and Ans scales. FACT-G contains 27 items that cover four dimensions of well-being: physical (PWB) - 7 items, functional (FWB) - 7 items, social/family (SWB) - 7 items, and emotional (EWB) - 6 items. The AnS scale contains 13 fatigue specific items (the Fatigue Score) plus 7 items related to anemia. The total score is obtained by summation of the scores from PWB, SWB, EWB, FWB and AnS. The FACT-An Total Score scale range is 0-188. A higher score indicates better QoL.
    Time Frame Baseline and weeks 12 to 28

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the FAS.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 383 403
    Least Squares Mean (95% Confidence Interval) [Units on a scale]
    -0.501
    -0.373
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection Roxadustat, ESA (Erythropoiesis-Stimulating Agent)
    Comments The model includes treatment, visit, visit by treatment interaction, Previous ESA Treatment, region and history of CV disease as fixed class factors and baseline FACT-An Ans, baseline Hb, as continuous covariates.
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value =0.922
    Comments p-value for superiority test based on 2-sided significance level
    Method Mixed Models Analysis
    Comments
    Method of Estimation Estimation Parameter LSM Difference
    Estimated Value -0.128
    Confidence Interval (2-Sided) 95%
    -2.703 to 2.447
    Parameter Dispersion Type:
    Value:
    Estimation Comments
    39. Secondary Outcome
    Title Change From BL to the Average of Weeks 12 to 28 in Euroqol Questionnaire-5 Dimensions 5 Levels (EQ-5D 5L) Visual Analogue Scale (VAS) Score
    Description Baseline assessment was defined as the value on Day 1. The EuroQol Questionnaire -5 Dimensions -5 Levels (EQ-5D-5L) is a self-reported questionnaire, used as a measure of respondents' Health Related Quality of Life (HRQoL) and utility values. The EQ-5D consists of the descriptive system and the visual analogue scale (VAS). The EQ-5D descriptive system comprises 5 dimensions of health: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. Each dimension has 5 levels: no problems, slight problems, moderate problems, severe problems, extreme problems. The VAS records the respondent's self rated health status on a graduated (0-100) scale, where the endpoints are labeled 'Best imaginable health state' and 'Worst imaginable health state' with higher scores for higher HRQoL.
    Time Frame Baseline and weeks 12 to 28

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the FAS.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 385 401
    Mean (Standard Deviation) [Units on a scale]
    3.041
    (14.910)
    2.735
    (14.477)
    40. Secondary Outcome
    Title Percentage of Participants With Improvements Measured by Patients' Global Impression of Change (PGIC)
    Description The PGIC is a patient-rated instrument that measures change in participant's overall status on a 7-point scale ranging from 1 (very much improved) to 7 (very much worse), when compared to the start of treatment. The percentage of participants presented includes very much improved, much improved and minimally improved.
    Time Frame Baseline and weeks 8, 12, 28, 36, 52, 76, 104

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the FAS.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 413 420
    Week 8
    59.6
    14.4%
    49.5
    11.8%
    Week 12
    65.5
    15.8%
    49.5
    11.8%
    Week 28
    62.3
    15%
    57.1
    13.6%
    Week 36
    60.4
    14.6%
    56.3
    13.4%
    Week 52
    57.1
    13.8%
    55.3
    13.1%
    Week 76
    61.2
    14.7%
    51.9
    12.3%
    Week 104
    61.6
    14.8%
    51.3
    12.2%
    41. Secondary Outcome
    Title Change From BL in Serum Hepcidin
    Description Baseline assessment was assessment from Day 1 visit. If baseline value was missing, the value from screening visit was used. In case of missing data, no imputation rules were applied.
    Time Frame Baseline and weeks 4, 12, 20, 36, 52, 104, and End of Study (EOS - up to 108 weeks)

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the FAS, with participants who had available data at baseline.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 413 420
    Week 4
    -14.265
    (42.393)
    -4.265
    (33.518)
    Week 12
    -12.298
    (41.335)
    -6.741
    (38.507)
    Week 20
    -15.149
    (43.152)
    -11.818
    (41.596)
    Week 36
    -23.405
    (43.033)
    -14.530
    (43.449)
    Week 52
    -32.709
    (42.342)
    -17.522
    (47.307)
    Week 104
    -40.101
    (48.611)
    -18.735
    (51.632)
    EOS
    -27.192
    (52.169)
    -17.664
    (51.688)
    42. Secondary Outcome
    Title Change From BL in Serum Ferritin
    Description Baseline assessment was assessment from Day 1 visit. If baseline value was missing, the value from screening visit was used. In case of missing data, no imputation rules were applied.
    Time Frame Baseline and weeks 4, 8, 12, 20, 28, 36, 44, 52, 60, 68, 76, 84, 92, 100, 104, and EOS (up to 108 weeks)

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the FAS.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 413 420
    Week 4
    -214.64
    (824.96)
    -141.78
    (456.15)
    Week 8
    -245.37
    (668.51)
    -160.75
    (607.39)
    Week 12
    -269.76
    (761.24)
    -179.47
    (586.95)
    Week 20
    -337.94
    (645.73)
    -246.89
    (727.64)
    Week 28
    -427.46
    (699.95)
    -265.21
    (816.64)
    Week 36
    -507.34
    (726.61)
    -269.26
    (855.01)
    Week 44
    -545.14
    (668.02)
    -323.30
    (986.38)
    Week 52
    -615.19
    (677.97)
    -347.58
    (1058.87)
    Week 60
    -622.55
    (675.22)
    -394.40
    (837.81)
    Week 68
    -604.47
    (773.19)
    -456.16
    (1039.18)
    Week 76
    -646.76
    (838.76)
    -447.70
    (967.63)
    Week 84
    -629.31
    (1060.24)
    -454.44
    (1193.43)
    Week 92
    -749.58
    (828.32)
    -371.64
    (1157.18)
    Week 100
    -746.86
    (796.74)
    -364.78
    (1802.37)
    Week 104
    -753.82
    (791.12)
    -348.70
    (1292.49)
    EOS
    -554.53
    (910.01)
    -166.94
    (2035.26)
    43. Secondary Outcome
    Title Change From BL in Transferrin Saturation (TSAT)
    Description Baseline assessment was assessment from Day 1 visit. If baseline value was missing, the value from screening visit was used. In case of missing data, no imputation rules were applied.
    Time Frame Baseline and weeks 4, 8, 12, 20, 28, 36, 44, 52, 60, 68, 76, 84, 92, 100, 104 and EOS (up to 108 weeks)

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the FAS.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 412 420
    Week 4
    -4.151
    (16.147)
    -2.331
    (13.178)
    Week 8
    -3.681
    (17.062)
    -3.128
    (14.461)
    Week 12
    -2.643
    (17.551)
    -3.189
    (13.912)
    Week 20
    -3.782
    (16.634)
    -4.398
    (14.444)
    Week 28
    -5.463
    (17.798)
    -3.829
    (15.216)
    Week 36
    -5.351
    (17.803)
    -4.022
    (15.471)
    Week 44
    -6.069
    (16.349)
    -5.254
    (15.144)
    Week 52
    -7.278
    (17.244)
    -5.788
    (14.666)
    Week 60
    -6.997
    (16.774)
    -5.187
    (16.097)
    Week 68
    -7.279
    (17.809)
    -6.237
    (15.934)
    Week 76
    -7.156
    (17.682)
    -6.623
    (16.395)
    Week 84
    -7.867
    (17.654)
    -5.378
    (17.771)
    Week 92
    -6.996
    (19.850)
    -6.259
    (16.605)
    Week 100
    -8.379
    (17.809)
    -6.354
    (17.147)
    Week 104
    -7.650
    (17.842)
    -5.054
    (17.195)
    EOS
    -5.466
    (16.626)
    -3.763
    (17.813)
    44. Secondary Outcome
    Title Change From BL in Glycated Hemoglobin (HbA1c) Level to Weeks 12, 28, 36, 44, 52, 60, 84, 104 and EOS (up to Week 108)
    Description Percentage of change from baseline to each study visit were calculated for HbA1c. Baseline assessment was assessment from Day 1 visit. If baseline value was missing, the value from screening visit was used. In case of missing data, no imputation rules were applied.
    Time Frame Baseline and weeks 12, 28, 36, 44, 52, 60, 84, 104 and EOS (up to 108 weeks)

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the FAS, with participants who had available data at baseline.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 413 419
    Week 12
    0.0009
    (0.0071)
    -0.0005
    (0.0057)
    Week 28
    -0.0004
    (0.0067)
    -0.0006
    (0.0064)
    Week 36
    -0.0001
    (0.0065)
    -0.0004
    (0.0067)
    Week 44
    -0.0001
    (0.0069)
    -0.0006
    (0.0067)
    Week 52
    -0.0001
    (0.0070)
    -0.0007
    (0.0068)
    Week 60
    0.0000
    (0.0080)
    -0.0004
    (0.0070)
    Week 84
    0.0003
    (0.0072)
    0.0001
    (0.0078)
    Week 104
    0.0000
    (0.0075)
    -0.0003
    (0.0082)
    EOS
    0.0011
    (0.0076)
    0.0001
    (0.0080)
    45. Secondary Outcome
    Title Number of Participants With Treatment-Emergent Adverse Events (TEAEs)
    Description Safety was assessed by evaluation of the following variables: (TEAEs; frequency, severity, seriousness, and relationship to study drug), Vital signs (systolic and diastolic blood pressure, pulse, respiratory rate and weight), Clinical laboratory variables (hematology, biochemistry including liver enzymes and total bilirubin, and urinalysis), Physical examination, 12-lead electrocardiogram (ECG) and Vascular Access Thrombosis. All AEs collected during the Safety Emergent Period were counted as TEAE. The TEAE was defined as an adverse event (AE) if it was observed after starting administration of the roxadustat or ESA. Any clinically significant abnormalities were reported as an AEs. All reported deaths after the first study drug administration and up to 28 days after the Analysis Date of Last Dose and considering last dosing frequency.
    Time Frame Baseline up to EOS (Up to week 108)

    Outcome Measure Data

    Analysis Population Description
    The analysis population was the Safety Analysis Set (SAF) which consisted of all randomized participants who received at least one dose of study drug.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    Measure Participants 414 420
    TEAE
    359
    86.5%
    361
    85.7%
    Drug-Related TEAE
    77
    18.6%
    35
    8.3%
    Serious TEAE
    210
    50.6%
    189
    44.9%
    Drug-Related Serious TEAE
    33
    8%
    10
    2.4%
    TEAE Leading to Death
    67
    16.1%
    55
    13.1%
    Drug-Related TEAE Leading to Death
    5
    1.2%
    2
    0.5%
    TEAE Leading to Withdrawal of Treatment
    35
    8.4%
    16
    3.8%
    Drug-Related TEAE Leading to Withdraw of Treatment
    9
    2.2%
    1
    0.2%
    TEAE NCI CTC Grades 3 or Higher
    181
    43.6%
    149
    35.4%
    Death During the Safety Emergent Period
    64
    15.4%
    51
    12.1%
    Death
    78
    18.8%
    59
    14%

    Adverse Events

    Time Frame From first dose of study drug up to End of Study (EOS) (Up to week 108)
    Adverse Event Reporting Description The Safety Emergent Period was defined as the evaluation period from the Analysis date of first drug intake up to 28 days after the end of treatment taking into account the different dosing frequencies of the study treatments.
    Arm/Group Title Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Arm/Group Description Participants received roxadustat three times a week (TIW) for at least 52 weeks up to a maximum of 104 weeks. Participants received initial dose of roxadustat in doses of 100 mg, 150 mg or 200 mg, according to the average weekly dose of epoetin or darbepoetin alfa prior to randomization. Participants' roxadustat dosage was adjusted every 4 weeks to maintain Hb level within the target range 10.0 to 12.0 g/dL. Dose adjustment steps were as follows: 20, 40, 50, 70, 100, 150, 200, 250, 300, and 400 mg. Oral iron treatment of 200 mg was allowed for supplementation to support erythropoiesis. Treatment with intravenous iron was allowed only if certain protocol criteria were met. Participants received epoetin alfa once weekly, twice weekly or TIW and darbepoetin alfa once a week or once every other week. Participants were treated for at least 52 weeks up to a maximum of 104 weeks. Treatment dosage was adjusted according to the pre-specified rule of keeping the participant's Hb levels between 10.0 to 12.0 g/dL. Participants were not allowed to switch from epoetin alfa to darbepoetin alfa or vice versa.
    All Cause Mortality
    Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 78/414 (18.8%) 59/420 (14%)
    Serious Adverse Events
    Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 210/414 (50.7%) 189/420 (45%)
    Blood and lymphatic system disorders
    Anaemia 5/414 (1.2%) 5 7/420 (1.7%) 8
    Hypocoagulable state 0/414 (0%) 0 1/420 (0.2%) 1
    Cardiac disorders
    Acute coronary syndrome 3/414 (0.7%) 3 3/420 (0.7%) 3
    Acute left ventricular failure 2/414 (0.5%) 2 0/420 (0%) 0
    Acute myocardial infarction 9/414 (2.2%) 9 11/420 (2.6%) 13
    Angina pectoris 5/414 (1.2%) 5 6/420 (1.4%) 8
    Angina unstable 0/414 (0%) 0 2/420 (0.5%) 4
    Aortic valve stenosis 2/414 (0.5%) 2 1/420 (0.2%) 1
    Arrhythmia 0/414 (0%) 0 1/420 (0.2%) 1
    Arteriosclerosis coronary artery 1/414 (0.2%) 1 1/420 (0.2%) 1
    Atrial fibrillation 12/414 (2.9%) 14 8/420 (1.9%) 8
    Atrial flutter 1/414 (0.2%) 1 1/420 (0.2%) 1
    Atrial tachycardia 0/414 (0%) 0 1/420 (0.2%) 1
    Atrioventricular block 0/414 (0%) 0 2/420 (0.5%) 2
    Atrioventricular block complete 1/414 (0.2%) 1 0/420 (0%) 0
    Atrioventricular block second degree 0/414 (0%) 0 1/420 (0.2%) 1
    Bradycardia 0/414 (0%) 0 1/420 (0.2%) 1
    Cardiac arrest 4/414 (1%) 4 8/420 (1.9%) 9
    Cardiac failure 8/414 (1.9%) 8 9/420 (2.1%) 9
    Cardiac failure acute 3/414 (0.7%) 3 1/420 (0.2%) 1
    Cardiac failure chronic 1/414 (0.2%) 1 1/420 (0.2%) 1
    Cardiac failure congestive 5/414 (1.2%) 5 1/420 (0.2%) 1
    Cardiac fibrillation 0/414 (0%) 0 1/420 (0.2%) 1
    Cardio-respiratory arrest 1/414 (0.2%) 1 2/420 (0.5%) 3
    Cardiogenic shock 2/414 (0.5%) 2 1/420 (0.2%) 1
    Cardiopulmonary failure 3/414 (0.7%) 3 1/420 (0.2%) 1
    Cardiovascular insufficiency 2/414 (0.5%) 2 0/420 (0%) 0
    Coronary artery disease 2/414 (0.5%) 2 3/420 (0.7%) 3
    Coronary artery occlusion 1/414 (0.2%) 1 0/420 (0%) 0
    Coronary artery stenosis 1/414 (0.2%) 1 2/420 (0.5%) 2
    Diastolic dysfunction 0/414 (0%) 0 1/420 (0.2%) 1
    Hypertensive heart disease 0/414 (0%) 0 1/420 (0.2%) 1
    Left ventricular failure 1/414 (0.2%) 1 0/420 (0%) 0
    Mitral valve incompetence 0/414 (0%) 0 1/420 (0.2%) 1
    Mitral valve stenosis 1/414 (0.2%) 1 0/420 (0%) 0
    Myocardial infarction 1/414 (0.2%) 1 6/420 (1.4%) 6
    Myocardial ischaemia 4/414 (1%) 5 4/420 (1%) 4
    Pericarditis 1/414 (0.2%) 1 0/420 (0%) 0
    Sinus node dysfunction 0/414 (0%) 0 1/420 (0.2%) 1
    Supraventricular tachycardia 1/414 (0.2%) 1 5/420 (1.2%) 5
    Tachyarrhythmia 0/414 (0%) 0 1/420 (0.2%) 1
    Tricuspid valve incompetence 0/414 (0%) 0 1/420 (0.2%) 1
    Ventricular arrhythmia 0/414 (0%) 0 1/420 (0.2%) 2
    Ventricular fibrillation 1/414 (0.2%) 1 2/420 (0.5%) 2
    Ear and labyrinth disorders
    Hypoacusis 1/414 (0.2%) 1 0/420 (0%) 0
    Vertigo 0/414 (0%) 0 1/420 (0.2%) 1
    Endocrine disorders
    Hyperparathyroidism secondary 3/414 (0.7%) 3 0/420 (0%) 0
    Hyperthyroidism 1/414 (0.2%) 1 0/420 (0%) 0
    Toxic goitre 1/414 (0.2%) 1 0/420 (0%) 0
    Eye disorders
    Angle closure glaucoma 0/414 (0%) 0 1/420 (0.2%) 1
    Cataract 0/414 (0%) 0 1/420 (0.2%) 1
    Eye haemorrhage 1/414 (0.2%) 1 1/420 (0.2%) 1
    Gastrointestinal disorders
    Abdominal adhesions 0/414 (0%) 0 1/420 (0.2%) 2
    Abdominal pain 0/414 (0%) 0 1/420 (0.2%) 1
    Abdominal wall haematoma 0/414 (0%) 0 1/420 (0.2%) 1
    Acute abdomen 0/414 (0%) 0 1/420 (0.2%) 1
    Anal fissure 1/414 (0.2%) 1 0/420 (0%) 0
    Anal fistula 1/414 (0.2%) 1 0/420 (0%) 0
    Anal incontinence 0/414 (0%) 0 1/420 (0.2%) 1
    Chronic gastritis 1/414 (0.2%) 1 0/420 (0%) 0
    Colitis 0/414 (0%) 0 1/420 (0.2%) 1
    Colitis ischaemic 0/414 (0%) 0 1/420 (0.2%) 2
    Constipation 1/414 (0.2%) 1 2/420 (0.5%) 3
    Diarrhoea 2/414 (0.5%) 2 3/420 (0.7%) 4
    Diverticulum 1/414 (0.2%) 1 0/420 (0%) 0
    Diverticulum intestinal 0/414 (0%) 0 2/420 (0.5%) 2
    Duodenal ulcer 4/414 (1%) 4 0/420 (0%) 0
    Erosive duodenitis 1/414 (0.2%) 1 1/420 (0.2%) 1
    Faecaloma 1/414 (0.2%) 1 0/420 (0%) 0
    Gastric ulcer 1/414 (0.2%) 1 0/420 (0%) 0
    Gastritis 1/414 (0.2%) 1 0/420 (0%) 0
    Gastritis erosive 2/414 (0.5%) 2 2/420 (0.5%) 2
    Gastrointestinal haemorrhage 0/414 (0%) 0 6/420 (1.4%) 6
    Gastrointestinal ischaemia 1/414 (0.2%) 1 0/420 (0%) 0
    Gastrointestinal necrosis 1/414 (0.2%) 1 0/420 (0%) 0
    Haemorrhoids 0/414 (0%) 0 1/420 (0.2%) 1
    Ileus paralytic 1/414 (0.2%) 1 0/420 (0%) 0
    Intestinal ischaemia 1/414 (0.2%) 1 2/420 (0.5%) 2
    Intestinal obstruction 0/414 (0%) 0 1/420 (0.2%) 1
    Intestinal ulcer perforation 1/414 (0.2%) 1 0/420 (0%) 0
    Intra-abdominal haematoma 0/414 (0%) 0 1/420 (0.2%) 1
    Large intestinal haemorrhage 0/414 (0%) 0 1/420 (0.2%) 1
    Large intestine perforation 0/414 (0%) 0 1/420 (0.2%) 1
    Mechanical ileus 0/414 (0%) 0 1/420 (0.2%) 1
    Melaena 1/414 (0.2%) 1 2/420 (0.5%) 2
    Nausea 2/414 (0.5%) 2 0/420 (0%) 0
    Oesophageal ulcer 1/414 (0.2%) 1 0/420 (0%) 0
    Oesophagitis 1/414 (0.2%) 1 0/420 (0%) 0
    Pancreatitis acute 0/414 (0%) 0 3/420 (0.7%) 3
    Ulcerative gastritis 1/414 (0.2%) 1 0/420 (0%) 0
    Upper gastrointestinal haemorrhage 2/414 (0.5%) 3 1/420 (0.2%) 1
    Vomiting 1/414 (0.2%) 1 1/420 (0.2%) 1
    General disorders
    Asthenia 3/414 (0.7%) 3 1/420 (0.2%) 1
    Catheter site haematoma 0/414 (0%) 0 1/420 (0.2%) 1
    Catheter site inflammation 1/414 (0.2%) 1 0/420 (0%) 0
    Chest pain 1/414 (0.2%) 1 0/420 (0%) 0
    Chills 1/414 (0.2%) 1 0/420 (0%) 0
    Complication associated with device 1/414 (0.2%) 1 1/420 (0.2%) 1
    Death 6/414 (1.4%) 6 3/420 (0.7%) 3
    Device related thrombosis 3/414 (0.7%) 5 1/420 (0.2%) 1
    Hyperthermia 0/414 (0%) 0 1/420 (0.2%) 1
    Impaired healing 0/414 (0%) 0 1/420 (0.2%) 1
    Malaise 1/414 (0.2%) 1 1/420 (0.2%) 1
    Medical device site phlebitis 1/414 (0.2%) 2 0/420 (0%) 0
    Multiple organ dysfunction syndrome 1/414 (0.2%) 1 0/420 (0%) 0
    Oedema peripheral 0/414 (0%) 0 1/420 (0.2%) 1
    Pain 0/414 (0%) 0 2/420 (0.5%) 2
    Peripheral swelling 0/414 (0%) 0 1/420 (0.2%) 1
    Pyrexia 4/414 (1%) 4 4/420 (1%) 5
    Sudden cardiac death 1/414 (0.2%) 1 1/420 (0.2%) 1
    Sudden death 7/414 (1.7%) 7 3/420 (0.7%) 3
    Vascular stent stenosis 0/414 (0%) 0 1/420 (0.2%) 1
    Hepatobiliary disorders
    Bile duct obstruction 1/414 (0.2%) 1 0/420 (0%) 0
    Bile duct stone 0/414 (0%) 0 1/420 (0.2%) 1
    Cholangitis 1/414 (0.2%) 1 1/420 (0.2%) 1
    Cholecystitis 1/414 (0.2%) 1 0/420 (0%) 0
    Cholecystitis acute 1/414 (0.2%) 1 3/420 (0.7%) 3
    Hepatotoxicity 1/414 (0.2%) 1 0/420 (0%) 0
    Hyperbilirubinaemia 1/414 (0.2%) 1 0/420 (0%) 0
    Jaundice 1/414 (0.2%) 1 0/420 (0%) 0
    Immune system disorders
    Anti-neutrophil cytoplasmic antibody positive vasculitis 0/414 (0%) 0 1/420 (0.2%) 1
    Renal transplant failure 1/414 (0.2%) 1 0/420 (0%) 0
    Infections and infestations
    Abdominal abscess 0/414 (0%) 0 1/420 (0.2%) 1
    Abdominal infection 1/414 (0.2%) 1 0/420 (0%) 0
    Abscess neck 0/414 (0%) 0 1/420 (0.2%) 1
    Acute hepatitis B 1/414 (0.2%) 1 0/420 (0%) 0
    Appendicitis 2/414 (0.5%) 2 1/420 (0.2%) 1
    Arteriovenous fistula site infection 3/414 (0.7%) 3 0/420 (0%) 0
    Arthritis bacterial 2/414 (0.5%) 2 0/420 (0%) 0
    Bacterial sepsis 0/414 (0%) 0 1/420 (0.2%) 1
    Biliary sepsis 1/414 (0.2%) 1 0/420 (0%) 0
    Bronchitis 5/414 (1.2%) 5 3/420 (0.7%) 3
    Cellulitis 2/414 (0.5%) 2 1/420 (0.2%) 1
    Cholecystitis infective 0/414 (0%) 0 1/420 (0.2%) 1
    Clostridium difficile infection 1/414 (0.2%) 1 0/420 (0%) 0
    Device related infection 2/414 (0.5%) 2 3/420 (0.7%) 4
    Device related sepsis 3/414 (0.7%) 3 3/420 (0.7%) 3
    Diabetic gangrene 2/414 (0.5%) 2 0/420 (0%) 0
    Diverticulitis 1/414 (0.2%) 1 0/420 (0%) 0
    Encephalomyelitis 1/414 (0.2%) 1 0/420 (0%) 0
    Endocarditis 2/414 (0.5%) 3 0/420 (0%) 0
    Enterobacter bacteraemia 1/414 (0.2%) 1 0/420 (0%) 0
    Enterococcal sepsis 0/414 (0%) 0 1/420 (0.2%) 1
    Erysipelas 1/414 (0.2%) 1 3/420 (0.7%) 3
    Escherichia bacteraemia 1/414 (0.2%) 1 0/420 (0%) 0
    Escherichia urinary tract infection 1/414 (0.2%) 2 1/420 (0.2%) 1
    Fungal oesophagitis 1/414 (0.2%) 1 0/420 (0%) 0
    Gangrene 5/414 (1.2%) 6 4/420 (1%) 7
    Gastric ulcer helicobacter 1/414 (0.2%) 1 0/420 (0%) 0
    Gastroenteritis 0/414 (0%) 0 6/420 (1.4%) 6
    Gastrointestinal candidiasis 1/414 (0.2%) 1 0/420 (0%) 0
    Haematoma infection 0/414 (0%) 0 2/420 (0.5%) 2
    Incision site infection 1/414 (0.2%) 1 0/420 (0%) 0
    Infected skin ulcer 1/414 (0.2%) 1 0/420 (0%) 0
    Infectious colitis 0/414 (0%) 0 2/420 (0.5%) 2
    Influenza 2/414 (0.5%) 2 1/420 (0.2%) 1
    Intervertebral discitis 1/414 (0.2%) 1 0/420 (0%) 0
    Liver abscess 1/414 (0.2%) 1 0/420 (0%) 0
    Localised infection 0/414 (0%) 0 2/420 (0.5%) 2
    Lower respiratory tract infection 2/414 (0.5%) 2 0/420 (0%) 0
    Lung abscess 1/414 (0.2%) 1 0/420 (0%) 0
    Medical device site joint infection 1/414 (0.2%) 1 0/420 (0%) 0
    Osteomyelitis 1/414 (0.2%) 2 0/420 (0%) 0
    Osteomyelitis bacterial 0/414 (0%) 0 1/420 (0.2%) 1
    Pancreatitis bacterial 1/414 (0.2%) 1 0/420 (0%) 0
    Penile abscess 0/414 (0%) 0 1/420 (0.2%) 1
    Periodontitis 0/414 (0%) 0 1/420 (0.2%) 1
    Peritonitis 10/414 (2.4%) 15 3/420 (0.7%) 4
    Peritonitis bacterial 1/414 (0.2%) 1 0/420 (0%) 0
    Pneumonia 15/414 (3.6%) 15 21/420 (5%) 22
    Pneumonia pneumococcal 1/414 (0.2%) 1 0/420 (0%) 0
    Postoperative wound infection 1/414 (0.2%) 1 0/420 (0%) 0
    Pseudomonal sepsis 1/414 (0.2%) 1 0/420 (0%) 0
    Pyelonephritis 1/414 (0.2%) 1 0/420 (0%) 0
    Pyelonephritis acute 1/414 (0.2%) 1 1/420 (0.2%) 1
    Pyelonephritis chronic 2/414 (0.5%) 2 0/420 (0%) 0
    Pyonephrosis 1/414 (0.2%) 1 0/420 (0%) 0
    Renal abscess 1/414 (0.2%) 1 0/420 (0%) 0
    Renal cyst infection 1/414 (0.2%) 1 0/420 (0%) 0
    Respiratory tract infection 0/414 (0%) 0 2/420 (0.5%) 2
    Respiratory tract infection bacterial 0/414 (0%) 0 1/420 (0.2%) 1
    Sepsis 8/414 (1.9%) 8 9/420 (2.1%) 9
    Sepsis syndrome 1/414 (0.2%) 1 0/420 (0%) 0
    Septic shock 1/414 (0.2%) 1 1/420 (0.2%) 1
    Sinusitis 0/414 (0%) 0 1/420 (0.2%) 1
    Skin infection 1/414 (0.2%) 1 0/420 (0%) 0
    Soft tissue infection 0/414 (0%) 0 1/420 (0.2%) 1
    Staphylococcal bacteraemia 0/414 (0%) 0 1/420 (0.2%) 1
    Staphylococcal sepsis 3/414 (0.7%) 3 2/420 (0.5%) 2
    Streptococcal sepsis 0/414 (0%) 0 1/420 (0.2%) 1
    Subcutaneous abscess 1/414 (0.2%) 1 0/420 (0%) 0
    Systemic infection 1/414 (0.2%) 1 0/420 (0%) 0
    Tracheobronchitis 1/414 (0.2%) 1 0/420 (0%) 0
    Upper respiratory tract infection 1/414 (0.2%) 1 1/420 (0.2%) 1
    Urinary tract infection 4/414 (1%) 4 0/420 (0%) 0
    Urinary tract infection bacterial 1/414 (0.2%) 1 2/420 (0.5%) 2
    Urinary tract infection enterococcal 1/414 (0.2%) 1 0/420 (0%) 0
    Urinary tract infection pseudomonal 1/414 (0.2%) 1 0/420 (0%) 0
    Urinary tract infection staphylococcal 1/414 (0.2%) 1 0/420 (0%) 0
    Urosepsis 1/414 (0.2%) 1 2/420 (0.5%) 2
    Viral upper respiratory tract infection 1/414 (0.2%) 1 0/420 (0%) 0
    Injury, poisoning and procedural complications
    Ankle fracture 0/414 (0%) 0 1/420 (0.2%) 1
    Arteriovenous fistula aneurysm 0/414 (0%) 0 2/420 (0.5%) 2
    Arteriovenous fistula occlusion 1/414 (0.2%) 1 0/420 (0%) 0
    Arteriovenous fistula site complication 6/414 (1.4%) 7 5/420 (1.2%) 5
    Arteriovenous fistula site haemorrhage 2/414 (0.5%) 3 1/420 (0.2%) 1
    Arteriovenous fistula thrombosis 29/414 (7%) 37 15/420 (3.6%) 18
    Arteriovenous graft site haemorrhage 0/414 (0%) 0 1/420 (0.2%) 1
    Arteriovenous graft site stenosis 0/414 (0%) 0 1/420 (0.2%) 1
    Arteriovenous graft thrombosis 1/414 (0.2%) 1 2/420 (0.5%) 5
    Back injury 0/414 (0%) 0 1/420 (0.2%) 1
    Comminuted fracture 1/414 (0.2%) 1 0/420 (0%) 0
    Concussion 1/414 (0.2%) 1 1/420 (0.2%) 1
    Facial bones fracture 0/414 (0%) 0 1/420 (0.2%) 2
    Fall 0/414 (0%) 0 6/420 (1.4%) 6
    Femoral neck fracture 2/414 (0.5%) 2 1/420 (0.2%) 1
    Femur fracture 2/414 (0.5%) 2 5/420 (1.2%) 5
    Graft thrombosis 1/414 (0.2%) 1 0/420 (0%) 0
    Head injury 0/414 (0%) 0 1/420 (0.2%) 1
    Hip fracture 0/414 (0%) 0 1/420 (0.2%) 1
    Ligament rupture 1/414 (0.2%) 1 0/420 (0%) 0
    Limb injury 0/414 (0%) 0 2/420 (0.5%) 2
    Lip injury 0/414 (0%) 0 1/420 (0.2%) 1
    Lower limb fracture 1/414 (0.2%) 1 0/420 (0%) 0
    Lumbar vertebral fracture 1/414 (0.2%) 1 0/420 (0%) 0
    Poisoning 1/414 (0.2%) 1 0/420 (0%) 0
    Post procedural haematoma 0/414 (0%) 0 1/420 (0.2%) 1
    Post procedural haemorrhage 1/414 (0.2%) 1 2/420 (0.5%) 2
    Post procedural inflammation 1/414 (0.2%) 1 0/420 (0%) 0
    Procedural complication 1/414 (0.2%) 1 0/420 (0%) 0
    Pubis fracture 1/414 (0.2%) 1 0/420 (0%) 0
    Radius fracture 0/414 (0%) 0 1/420 (0.2%) 1
    Rib fracture 1/414 (0.2%) 1 2/420 (0.5%) 2
    Shunt aneurysm 0/414 (0%) 0 1/420 (0.2%) 1
    Shunt malfunction 0/414 (0%) 0 1/420 (0.2%) 1
    Shunt occlusion 2/414 (0.5%) 5 1/420 (0.2%) 1
    Shunt stenosis 0/414 (0%) 0 1/420 (0.2%) 1
    Shunt thrombosis 1/414 (0.2%) 1 4/420 (1%) 5
    Skin injury 1/414 (0.2%) 1 0/420 (0%) 0
    Skin wound 1/414 (0.2%) 2 0/420 (0%) 0
    Spinal compression fracture 1/414 (0.2%) 1 0/420 (0%) 0
    Spinal fracture 0/414 (0%) 0 1/420 (0.2%) 1
    Subdural haematoma 0/414 (0%) 0 1/420 (0.2%) 1
    Thermal burn 0/414 (0%) 0 1/420 (0.2%) 1
    Thoracic vertebral fracture 0/414 (0%) 0 1/420 (0.2%) 1
    Tibia fracture 1/414 (0.2%) 1 1/420 (0.2%) 1
    Ulna fracture 0/414 (0%) 0 1/420 (0.2%) 1
    Upper limb fracture 1/414 (0.2%) 1 0/420 (0%) 0
    Vascular access malfunction 2/414 (0.5%) 2 0/420 (0%) 0
    Vascular access site haemorrhage 0/414 (0%) 0 1/420 (0.2%) 2
    Vascular pseudoaneurysm 0/414 (0%) 0 1/420 (0.2%) 1
    Wound 1/414 (0.2%) 1 0/420 (0%) 0
    Investigations
    Blood potassium increased 1/414 (0.2%) 1 0/420 (0%) 0
    Electrocardiogram abnormal 0/414 (0%) 0 1/420 (0.2%) 1
    Metabolism and nutrition disorders
    Cachexia 1/414 (0.2%) 1 2/420 (0.5%) 2
    Dehydration 1/414 (0.2%) 1 1/420 (0.2%) 1
    Diabetes mellitus 2/414 (0.5%) 2 0/420 (0%) 0
    Diabetes mellitus inadequate control 0/414 (0%) 0 1/420 (0.2%) 1
    Fluid overload 1/414 (0.2%) 1 2/420 (0.5%) 3
    Fluid retention 0/414 (0%) 0 1/420 (0.2%) 1
    Hypercalcaemia 1/414 (0.2%) 1 1/420 (0.2%) 1
    Hyperglycaemia 2/414 (0.5%) 3 0/420 (0%) 0
    Hyperkalaemia 4/414 (1%) 4 3/420 (0.7%) 3
    Hypervolaemia 0/414 (0%) 0 1/420 (0.2%) 1
    Hypoglycaemia 1/414 (0.2%) 1 0/420 (0%) 0
    Metabolic acidosis 1/414 (0.2%) 1 0/420 (0%) 0
    Musculoskeletal and connective tissue disorders
    Back pain 0/414 (0%) 0 1/420 (0.2%) 1
    Fistula discharge 0/414 (0%) 0 1/420 (0.2%) 1
    Joint contracture 1/414 (0.2%) 1 0/420 (0%) 0
    Mobility decreased 0/414 (0%) 0 1/420 (0.2%) 2
    Musculoskeletal chest pain 0/414 (0%) 0 1/420 (0.2%) 1
    Osteitis 0/414 (0%) 0 1/420 (0.2%) 2
    Osteoarthritis 2/414 (0.5%) 2 1/420 (0.2%) 1
    Osteonecrosis 0/414 (0%) 0 1/420 (0.2%) 1
    Rotator cuff syndrome 1/414 (0.2%) 1 2/420 (0.5%) 2
    Sarcopenia 0/414 (0%) 0 1/420 (0.2%) 1
    Neoplasms benign, malignant and unspecified (incl cysts and polyps)
    Acute myeloid leukaemia 0/414 (0%) 0 1/420 (0.2%) 1
    Adenocarcinoma gastric 0/414 (0%) 0 1/420 (0.2%) 1
    Adenocarcinoma of colon 1/414 (0.2%) 1 0/420 (0%) 0
    Basal cell carcinoma 2/414 (0.5%) 3 2/420 (0.5%) 2
    Benign lung neoplasm 0/414 (0%) 0 1/420 (0.2%) 1
    Benign renal neoplasm 0/414 (0%) 0 1/420 (0.2%) 1
    Bladder cancer 1/414 (0.2%) 1 0/420 (0%) 0
    Bowen's disease 1/414 (0.2%) 1 0/420 (0%) 0
    Carcinoid tumour pulmonary 1/414 (0.2%) 1 0/420 (0%) 0
    Colon adenoma 1/414 (0.2%) 1 0/420 (0%) 0
    Colon cancer 1/414 (0.2%) 1 1/420 (0.2%) 1
    Colorectal adenocarcinoma 0/414 (0%) 0 1/420 (0.2%) 1
    Colorectal cancer metastatic 1/414 (0.2%) 1 0/420 (0%) 0
    Endometrial adenocarcinoma 0/414 (0%) 0 1/420 (0.2%) 1
    Haemangioma of bone 0/414 (0%) 0 1/420 (0.2%) 1
    Hypopharyngeal neoplasm 0/414 (0%) 0 1/420 (0.2%) 1
    Invasive ductal breast carcinoma 0/414 (0%) 0 1/420 (0.2%) 1
    Kidney angiomyolipoma 0/414 (0%) 0 1/420 (0.2%) 1
    Lung neoplasm 1/414 (0.2%) 1 0/420 (0%) 0
    Lung neoplasm malignant 3/414 (0.7%) 3 2/420 (0.5%) 2
    Malignant neoplasm of choroid 0/414 (0%) 0 1/420 (0.2%) 1
    Metastases to central nervous system 1/414 (0.2%) 1 0/420 (0%) 0
    Metastases to liver 2/414 (0.5%) 2 0/420 (0%) 0
    Metastatic neoplasm 1/414 (0.2%) 1 0/420 (0%) 0
    Myelodysplastic syndrome 0/414 (0%) 0 1/420 (0.2%) 1
    Ovarian neoplasm 0/414 (0%) 0 1/420 (0.2%) 1
    Papillary thyroid cancer 1/414 (0.2%) 1 0/420 (0%) 0
    Parathyroid tumour benign 0/414 (0%) 0 1/420 (0.2%) 1
    Penile cancer 1/414 (0.2%) 1 0/420 (0%) 0
    Prostate cancer 2/414 (0.5%) 2 0/420 (0%) 0
    Refractory anaemia with an excess of blasts 0/414 (0%) 0 1/420 (0.2%) 1
    Renal cell carcinoma 0/414 (0%) 0 1/420 (0.2%) 1
    Skin cancer 0/414 (0%) 0 1/420 (0.2%) 1
    Small cell lung cancer 0/414 (0%) 0 1/420 (0.2%) 1
    Squamous cell carcinoma of lung 0/414 (0%) 0 1/420 (0.2%) 1
    Squamous cell carcinoma of skin 1/414 (0.2%) 1 0/420 (0%) 0
    Nervous system disorders
    Carotid artery stenosis 0/414 (0%) 0 1/420 (0.2%) 2
    Carpal tunnel syndrome 1/414 (0.2%) 1 0/420 (0%) 0
    Cerebellar infarction 0/414 (0%) 0 1/420 (0.2%) 1
    Cerebral arteriosclerosis 0/414 (0%) 0 1/420 (0.2%) 1
    Cerebral artery occlusion 0/414 (0%) 0 1/420 (0.2%) 1
    Cerebral haemorrhage 1/414 (0.2%) 1 0/420 (0%) 0
    Cerebral infarction 0/414 (0%) 0 4/420 (1%) 5
    Cerebral ischaemia 1/414 (0.2%) 1 0/420 (0%) 0
    Cerebrovascular accident 3/414 (0.7%) 3 1/420 (0.2%) 1
    Cerebrovascular disorder 0/414 (0%) 0 1/420 (0.2%) 1
    Cognitive disorder 1/414 (0.2%) 1 0/420 (0%) 0
    Coma 1/414 (0.2%) 1 2/420 (0.5%) 2
    Disturbance in attention 0/414 (0%) 0 1/420 (0.2%) 1
    Dizziness 0/414 (0%) 0 1/420 (0.2%) 1
    Embolic cerebral infarction 0/414 (0%) 0 1/420 (0.2%) 1
    Encephalopathy 1/414 (0.2%) 1 0/420 (0%) 0
    Epilepsy 0/414 (0%) 0 1/420 (0.2%) 1
    Epileptic encephalopathy 0/414 (0%) 0 1/420 (0.2%) 1
    Generalised tonic-clonic seizure 1/414 (0.2%) 2 0/420 (0%) 0
    Haemorrhage intracranial 1/414 (0.2%) 1 0/420 (0%) 0
    Haemorrhagic stroke 0/414 (0%) 0 1/420 (0.2%) 1
    Hypoxic-ischaemic encephalopathy 1/414 (0.2%) 1 0/420 (0%) 0
    Idiopathic partial epilepsy 1/414 (0.2%) 1 0/420 (0%) 0
    Ischaemic stroke 1/414 (0.2%) 1 1/420 (0.2%) 1
    Lethargy 0/414 (0%) 0 1/420 (0.2%) 1
    Loss of consciousness 2/414 (0.5%) 2 0/420 (0%) 0
    Seizure 0/414 (0%) 0 2/420 (0.5%) 2
    Syncope 0/414 (0%) 0 1/420 (0.2%) 1
    Transient ischaemic attack 0/414 (0%) 0 2/420 (0.5%) 2
    Vascular dementia 0/414 (0%) 0 1/420 (0.2%) 1
    Vertigo CNS origin 1/414 (0.2%) 1 0/420 (0%) 0
    Product Issues
    Device dislocation 0/414 (0%) 0 1/420 (0.2%) 1
    Device failure 2/414 (0.5%) 2 0/420 (0%) 0
    Device malfunction 4/414 (1%) 5 0/420 (0%) 0
    Psychiatric disorders
    Confusional state 0/414 (0%) 0 2/420 (0.5%) 2
    Delirium 1/414 (0.2%) 1 0/420 (0%) 0
    Depression 1/414 (0.2%) 1 0/420 (0%) 0
    Disorientation 0/414 (0%) 0 1/420 (0.2%) 1
    Fear of falling 1/414 (0.2%) 1 0/420 (0%) 0
    Mental disorder due to a general medical condition 1/414 (0.2%) 1 0/420 (0%) 0
    Organic brain syndrome 0/414 (0%) 0 1/420 (0.2%) 1
    Renal and urinary disorders
    Calculus urinary 1/414 (0.2%) 1 0/420 (0%) 0
    Chronic kidney disease 1/414 (0.2%) 1 0/420 (0%) 0
    End stage renal disease 0/414 (0%) 0 2/420 (0.5%) 2
    Haematuria 1/414 (0.2%) 1 2/420 (0.5%) 2
    Hydronephrosis 0/414 (0%) 0 2/420 (0.5%) 3
    Renal cyst ruptured 1/414 (0.2%) 1 2/420 (0.5%) 2
    Tubulointerstitial nephritis 0/414 (0%) 0 1/420 (0.2%) 1
    Urethral perforation 0/414 (0%) 0 1/420 (0.2%) 1
    Urinary retention 0/414 (0%) 0 1/420 (0.2%) 1
    Urinoma 1/414 (0.2%) 1 0/420 (0%) 0
    Reproductive system and breast disorders
    Ovarian disorder 1/414 (0.2%) 1 0/420 (0%) 0
    Uterine polyp 1/414 (0.2%) 1 0/420 (0%) 0
    Vaginal haemorrhage 0/414 (0%) 0 1/420 (0.2%) 1
    Respiratory, thoracic and mediastinal disorders
    Acute pulmonary oedema 2/414 (0.5%) 2 0/420 (0%) 0
    Acute respiratory distress syndrome 0/414 (0%) 0 1/420 (0.2%) 1
    Acute respiratory failure 2/414 (0.5%) 2 2/420 (0.5%) 2
    Atelectasis 0/414 (0%) 0 2/420 (0.5%) 2
    Bronchitis chronic 1/414 (0.2%) 1 2/420 (0.5%) 2
    Chronic obstructive pulmonary disease 2/414 (0.5%) 2 1/420 (0.2%) 1
    Chronic respiratory failure 1/414 (0.2%) 1 0/420 (0%) 0
    Dyspnoea 4/414 (1%) 4 4/420 (1%) 4
    Eosinophilic pneumonia 0/414 (0%) 0 1/420 (0.2%) 1
    Haemoptysis 0/414 (0%) 0 1/420 (0.2%) 1
    Interstitial lung disease 0/414 (0%) 0 1/420 (0.2%) 1
    Pleural effusion 6/414 (1.4%) 7 2/420 (0.5%) 3
    Pleural thickening 0/414 (0%) 0 1/420 (0.2%) 1
    Pleurisy 0/414 (0%) 0 1/420 (0.2%) 1
    Pneumonia aspiration 1/414 (0.2%) 1 1/420 (0.2%) 1
    Pulmonary alveolar haemorrhage 0/414 (0%) 0 1/420 (0.2%) 1
    Pulmonary embolism 4/414 (1%) 4 1/420 (0.2%) 1
    Pulmonary hypertension 2/414 (0.5%) 2 1/420 (0.2%) 1
    Pulmonary infarction 1/414 (0.2%) 1 0/420 (0%) 0
    Pulmonary oedema 6/414 (1.4%) 6 2/420 (0.5%) 2
    Respiratory arrest 0/414 (0%) 0 1/420 (0.2%) 1
    Respiratory failure 2/414 (0.5%) 2 0/420 (0%) 0
    Skin and subcutaneous tissue disorders
    Cutaneous vasculitis 0/414 (0%) 0 1/420 (0.2%) 1
    Diabetic foot 0/414 (0%) 0 2/420 (0.5%) 2
    Ingrowing nail 0/414 (0%) 0 1/420 (0.2%) 1
    Neurodermatitis 1/414 (0.2%) 1 0/420 (0%) 0
    Rash vesicular 1/414 (0.2%) 1 0/420 (0%) 0
    Skin lesion 0/414 (0%) 0 1/420 (0.2%) 1
    Skin necrosis 1/414 (0.2%) 1 1/420 (0.2%) 1
    Skin ulcer 1/414 (0.2%) 1 0/420 (0%) 0
    Toxic epidermal necrolysis 1/414 (0.2%) 1 0/420 (0%) 0
    Urticaria 0/414 (0%) 0 1/420 (0.2%) 1
    Surgical and medical procedures
    Catheter placement 1/414 (0.2%) 1 0/420 (0%) 0
    Therapy cessation 1/414 (0.2%) 1 0/420 (0%) 0
    Vascular disorders
    Aortic dissection 1/414 (0.2%) 1 0/420 (0%) 0
    Aortic stenosis 0/414 (0%) 0 1/420 (0.2%) 1
    Arterial disorder 0/414 (0%) 0 1/420 (0.2%) 1
    Circulatory collapse 1/414 (0.2%) 1 0/420 (0%) 0
    Deep vein thrombosis 4/414 (1%) 5 0/420 (0%) 0
    Diabetic vascular disorder 1/414 (0.2%) 1 0/420 (0%) 0
    Dry gangrene 1/414 (0.2%) 1 2/420 (0.5%) 3
    Haematoma 0/414 (0%) 0 3/420 (0.7%) 3
    Haemorrhage 1/414 (0.2%) 1 0/420 (0%) 0
    Hypertension 10/414 (2.4%) 10 5/420 (1.2%) 5
    Hypertensive crisis 3/414 (0.7%) 4 3/420 (0.7%) 8
    Hypotension 4/414 (1%) 5 1/420 (0.2%) 3
    Intermittent claudication 0/414 (0%) 0 1/420 (0.2%) 1
    Lymphoedema 1/414 (0.2%) 1 0/420 (0%) 0
    Malignant hypertension 1/414 (0.2%) 1 1/420 (0.2%) 1
    Orthostatic hypotension 1/414 (0.2%) 1 1/420 (0.2%) 1
    Peripheral arterial occlusive disease 2/414 (0.5%) 2 4/420 (1%) 4
    Peripheral artery occlusion 0/414 (0%) 0 3/420 (0.7%) 3
    Peripheral artery stenosis 0/414 (0%) 0 1/420 (0.2%) 1
    Peripheral artery thrombosis 2/414 (0.5%) 2 0/420 (0%) 0
    Peripheral ischaemia 2/414 (0.5%) 2 4/420 (1%) 6
    Peripheral vascular disorder 0/414 (0%) 0 1/420 (0.2%) 1
    Steal syndrome 1/414 (0.2%) 1 0/420 (0%) 0
    Subclavian artery thrombosis 1/414 (0.2%) 1 1/420 (0.2%) 1
    Subclavian vein thrombosis 1/414 (0.2%) 1 0/420 (0%) 0
    Thrombosis 1/414 (0.2%) 2 1/420 (0.2%) 1
    Vasculitis necrotising 0/414 (0%) 0 1/420 (0.2%) 2
    Venous stenosis 1/414 (0.2%) 1 1/420 (0.2%) 5
    Other (Not Including Serious) Adverse Events
    Roxadustat ESA (Erythropoiesis-Stimulating Agent)
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 210/414 (50.7%) 209/420 (49.8%)
    Endocrine disorders
    Hyperparathyroidism secondary 21/414 (5.1%) 21 16/420 (3.8%) 17
    Gastrointestinal disorders
    Diarrhoea 33/414 (8%) 51 32/420 (7.6%) 60
    Nausea 27/414 (6.5%) 29 8/420 (1.9%) 10
    Infections and infestations
    Bronchitis 29/414 (7%) 38 27/420 (6.4%) 34
    Upper respiratory tract infection 14/414 (3.4%) 19 21/420 (5%) 29
    Viral upper respiratory tract infection 28/414 (6.8%) 61 39/420 (9.3%) 68
    Injury, poisoning and procedural complications
    Arteriovenous fistula thrombosis 27/414 (6.5%) 34 18/420 (4.3%) 21
    Metabolism and nutrition disorders
    Iron deficiency 30/414 (7.2%) 39 51/420 (12.1%) 64
    Musculoskeletal and connective tissue disorders
    Muscle spasms 15/414 (3.6%) 21 33/420 (7.9%) 48
    Nervous system disorders
    Headache 36/414 (8.7%) 41 29/420 (6.9%) 39
    Vascular disorders
    Hypertension 66/414 (15.9%) 101 75/420 (17.9%) 116
    Hypotension 30/414 (7.2%) 40 26/420 (6.2%) 40

    Limitations/Caveats

    Overall 838 were randomized to receive treatment. Two participants randomized to the pooled ESA treatment group were excluded due to GCP violations and their data was excluded. Total of 836 were considered randomized.

    More Information

    Certain Agreements

    Principal Investigators are NOT employed by the organization sponsoring the study.

    Institute and/or Principal Investigator may publish trial data generated at their specific study site after Sponsor publication of the multi-center data. Sponsor must receive a site's manuscript prior to publication for review and comment as specified in the Investigator Agreement.

    Results Point of Contact

    Name/Title Clinical Trial Disclosure
    Organization Astellas Pharma Europe B.V.
    Phone 800-888-7704 ext 5473
    Email astellas.resultsdisclosure@astellas.com
    Responsible Party:
    Astellas Pharma Europe B.V.
    ClinicalTrials.gov Identifier:
    NCT02278341
    Other Study ID Numbers:
    • 1517-CL-0613
    • 2013-001497-16
    First Posted:
    Oct 30, 2014
    Last Update Posted:
    Feb 4, 2021
    Last Verified:
    Dec 1, 2020