Study to Evaluate the Safety and Efficacy of Switching to Tenofovir Alafenamide (TAF) From Tenofovir Disoproxil Fumarate (TDF) and/or Other Oral Antiviral Treatment (OAV)

Sponsor
Gilead Sciences (Industry)
Overall Status
Completed
CT.gov ID
NCT03180619
Collaborator
(none)
124
30
3
38.2
4.1
0.1

Study Details

Study Description

Brief Summary

The primary objective of this study is to evaluate the safety and tolerability and virologic response of tenofovir alafenamide (TAF) in virologically suppressed chronic hepatitis B participants with renal and/or hepatic impairment.

Condition or Disease Intervention/Treatment Phase
Phase 2

Study Design

Study Type:
Interventional
Actual Enrollment :
124 participants
Allocation:
Non-Randomized
Intervention Model:
Parallel Assignment
Masking:
None (Open Label)
Primary Purpose:
Treatment
Official Title:
A Phase 2, Open-label Study to Evaluate the Safety and Efficacy of Switching to Tenofovir Alafenamide (TAF) From Tenofovir Disoproxil Fumarate (TDF) and/or Other Oral Antiviral Treatment (OAV) in Virologically Suppressed Chronic Hepatitis B Subjects With Renal and/or Hepatic Impairment
Actual Study Start Date :
Jun 29, 2017
Actual Primary Completion Date :
Mar 27, 2019
Actual Study Completion Date :
Sep 4, 2020

Arms and Interventions

Arm Intervention/Treatment
Experimental: Part A (Renal Impairment): Moderate or Severe Renal Impairment

Participants with chronic hepatitis B (CHB) and moderate or severe renal impairment who were virologically suppressed and taking tenofovir disoproxil fumarate (TDF), a TDF-containing anti-hepatitis B virus (HBV) regimen, or other oral antivirals (OAVs), will switch to tenofovir alafenamide (TAF) and receive TAF 25 milligram (mg) tablet once daily orally for 96 weeks.

Drug: TAF
Tablet administered orally once daily
Other Names:
  • Vemlidy®
  • Experimental: Part A (Renal Impairment): End Stage Renal Disease

    Participants with CHB and end stage renal disease who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, will switch to TAF and receive TAF 25 mg tablet once daily orally for 96 weeks.

    Drug: TAF
    Tablet administered orally once daily
    Other Names:
  • Vemlidy®
  • Experimental: Part B: Hepatic Impairment

    Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, will switch to TAF and receive TAF 25 mg tablet once daily orally for 96 weeks.

    Drug: TAF
    Tablet administered orally once daily
    Other Names:
  • Vemlidy®
  • Outcome Measures

    Primary Outcome Measures

    1. Percentage of Participants Achieving Virologic Response (Plasma Hepatitis B Virus [HBV] Deoxyribonucleic Acid [DNA] < 20 IU/mL) at Week 24 [Week 24]

      The percentage of participants with HBV DNA < 20 IU/mL at Week 24 was determined by the Missing = Failure (M = F) approach.

    2. Percentage of Participants Who Experienced Graded Treatment-Emergent Adverse Events (AEs) at Week 24 [Week 24]

      Treatment-emergent AEs were defined as: Any AEs with an onset date on or after the study drug start date and no later than the study drug stop date + 3 days after permanent discontinuation of study drug; Any AEs with onset date on or after the study drug start date for those who have not permanently discontinued study drug; Any AEs leading to premature discontinuation of study drug. The most severe graded AE from all tests was counted for each participant.

    3. Percentage of Participants Who Experienced Graded Treatment-Emergent Laboratory Abnormalities at Week 24 [Week 24]

      Graded treatment-emergent laboratory abnormalities were defined as values that increased at least 1 toxicity grade from baseline at any postbaseline visit, up to and including the date of last dose of study drug + 3 days for participants who permanently discontinued study drug or the last available date in the database snapshot for participants who were on treatment at the time of the analysis. The most severe graded abnormality from all tests was counted for each participant.

    Secondary Outcome Measures

    1. Percentage of Participants Who Experienced Graded Treatment-Emergent AEs at Week 48 [Week 48]

      Treatment-emergent AEs were defined as: Any AEs with an onset date on or after the study drug start date and no later than the study drug stop date + 3 days after permanent discontinuation of study drug; Any AEs with onset date on or after the study drug start date for those who have not permanently discontinued study drug; Any AEs leading to premature discontinuation of study drug. The most severe graded AE from all tests was counted for each participant.

    2. Percentage of Participants Who Experienced Graded Treatment-Emergent AEs at Week 96 [Week 96]

      Treatment-emergent AEs were defined as: Any AEs with an onset date on or after the study drug start date and no later than the study drug stop date + 3 days after permanent discontinuation of study drug; Any AEs with onset date on or after the study drug start date for those who have not permanently discontinued study drug; Any AEs leading to premature discontinuation of study drug. The most severe graded AE from all tests was counted for each participant.

    3. Percentage of Participants Who Experienced Graded Treatment-Emergent Laboratory Abnormalities at Week 48 [Week 48]

      Graded treatment-emergent laboratory abnormalities were defined as values that increased at least 1 toxicity grade from baseline at any postbaseline visit, up to and including the date of last dose of study drug + 3 days for participants who permanently discontinued study drug or the last available date in the database snapshot for participants who were on treatment at the time of the analysis. The most severe graded abnormality from all tests was counted for each participant.

    4. Percentage of Participants Who Experienced Graded Treatment-Emergent Laboratory Abnormalities at Week 96 [Week 96]

      Graded treatment-emergent laboratory abnormalities were defined as values that increased at least 1 toxicity grade from baseline at any post-baseline visit, up to and including the date of last dose of study drug + 3 days for participants who permanently discontinued study drug or the last available date in the database snapshot for participants who were on treatment at the time of the analysis. The most severe graded abnormality from all tests was counted for each participant.

    5. Change From Baseline in Estimated Glomerular Filtration Rate by the Cockcroft-Gault Formula (eGFRcg) in Participants With Moderate or Severe Renal Impairment and Hepatically Impaired Participants at Week 24 [Baseline, Week 24]

      GFR is a measure of the rate at which blood is filtered by the kidney. Cockcroft-Gault is an equation (calculation) used to estimate GFR based on serum creatinine, weight, and gender. eGFRcg = (140 - age in years) x (body weight in kg) x (0.85 if female) divided by 72 x serum creatinine in mg/dL. Moderate renal impairment= 30 mL/min ≤ eGFRCG ≤ 59 mL/min Severe renal impairment= 15 mL/min ≤ eGFRCG < 30 mL/min Change from baseline was calculated as the value at Week 24 minus the value at Baseline.

    6. Change From Baseline in eGFRcg in Participants With Moderate or Severe Renal Impairment and Hepatically Impaired Participants at Week 48 [Baseline, Week 48]

      GFR is a measure of the rate at which blood is filtered by the kidney. Cockcroft-Gault is an equation (calculation) used to estimate GFR based on serum creatinine, weight, and gender. eGFRcg = (140 - age in years) x (body weight in kg) x (0.85 if female) divided by 72 x serum creatinine in mg/dL. Moderate renal impairment= 30 mL/min ≤ eGFRCG ≤ 59 mL/min Severe renal impairment= 15 mL/min ≤ eGFRCG < 30 mL/min Change from baseline was calculated as the value at Week 48 minus the value at Baseline.

    7. Change From Baseline in eGFRcg in Participants With Moderate or Severe Renal Impairment and Hepatically Impaired Participants at Week 96 [Baseline, Week 96]

      GFR is a measure of the rate at which blood is filtered by the kidney. Cockcroft-Gault is an equation (calculation) used to estimate GFR based on serum creatinine, weight, and gender. eGFRcg = (140 - age in years) x (body weight in kg) x (0.85 if female) divided by 72 x serum creatinine in mg/dL. Moderate renal impairment= 30 mL/min ≤ eGFRCG ≤ 59 mL/min Severe renal impairment= 15 mL/min ≤ eGFRCG < 30 mL/min Change from baseline was calculated as the value at Week 96 minus the value at Baseline.

    8. Percent Change From Baseline in Hip Bone Mineral Density (BMD) at Week 24 [Baseline, Week 24]

      Percent change = Change from baseline at a postbaseline visit/baseline * 100%.

    9. Percent Change From Baseline in Hip BMD at Week 48 [Baseline, Week 48]

      Percent change = Change from baseline at a postbaseline visit/baseline * 100%.

    10. Percent Change From Baseline in Hip BMD at Week 96 [Baseline, Week 96]

      Percent change = Change from baseline at a postbaseline visit/baseline * 100%.

    11. Percent Change From Baseline in Spine BMD at Week 24 [Baseline, Week 24]

      Percent change = Change from baseline at a postbaseline visit/baseline * 100%.

    12. Percent Change From Baseline in Spine BMD at Week 48 [Baseline, Week 48]

      Percent change = Change from baseline at a postbaseline visit/baseline * 100%.

    13. Percent Change From Baseline in Spine BMD at Week 96 [Baseline, Week 96]

      Percent change = Change from baseline at a postbaseline visit/baseline * 100%.

    14. Percentage of Participants Achieving Virologic Response (Plasma HBV DNA < 20 IU/mL) at Week 48 [Weeks 48]

      The percentage of participants with HBV DNA < 20 IU/mL at Week 48 was determined by the Missing = Failure (M = F) approach.

    15. Percentage of Participants Achieving Virologic Response (Plasma HBV DNA < 20 IU/mL) at Week 96 [Weeks 96]

      The percentage of participants with HBV DNA < 20 IU/mL at Week 48 was determined by the Missing = Failure (M = F) approach.

    16. Percentage of Participants With Plasma HBV DNA < 20 IU/mL and Target Detected (≥ Lower Limit of Detection [LLOD]) at Week 24 [Week 24]

      The percentage of participants with HBV DNA < 20 IU/mL and target detected (≥ LLOD; i.e. 10 IU/mL) at Week 24 was determined by the M = F approach.

    17. Percentage of Participants With Plasma HBV DNA < 20 IU/mL and Target Detected (≥ LLOD) at Week 48 [Week 48]

      The percentage of participants with HBV DNA < 20 IU/mL and target detected (≥ LLOD; i.e. 10 IU/mL) at Week 48 was determined by the M = F approach.

    18. Percentage of Participants With Plasma HBV DNA < 20 IU/mL and Target Detected (≥ LLOD) at Week 96 [Week 96]

      The percentage of participants with HBV DNA < 20 IU/mL and target detected (≥ LLOD; i.e. 10 IU/mL) at Week 96 was determined by the M = F approach.

    19. Percentage of Participants With Plasma HBV DNA < 20 IU/mL and Target Not Detected (< LLOD) at Week 24 [Week 24]

      The percentage of participants with HBV DNA < 20 IU/mL and target not detected (< LLOD; i.e. 10 IU/mL) at Week 24 was determined by the M = F approach.

    20. Percentage of Participants With Plasma HBV DNA < 20 IU/mL and Target Not Detected (< LLOD) at Week 48 [Weeks 48]

      The percentage of participants with HBV DNA < 20 IU/mL and target not detected (< LLOD; i.e. 10 IU/mL) at Week 48 was determined by the M = F approach.

    21. Percentage of Participants With Plasma HBV DNA < 20 IU/mL and Target Not Detected (< LLOD) at Week 96 [Weeks 96]

      The percentage of participants with HBV DNA < 20 IU/mL and target not detected (< LLOD; i.e. 10 IU/mL) at Week 96 was determined by the M = F approach.

    22. Percentage of Participants With Serological Response: Loss of Hepatitis B s-Antigen (HBsAg) at Week 24 [Week 24]

      HBsAg loss was defined as HBsAg changing from positive at baseline to negative at a postbaseline. The M = F approach was used for this analysis.

    23. Percentage of Participants With Serological Response: Loss of HBsAg at Week 48 [Week 48]

      HBsAg loss was defined as HBsAg changing from positive at baseline to negative at a postbaseline. The M = F approach was used for this analysis.

    24. Percentage of Participants With Serological Response: Loss of HBsAg at Week 96 [Week 96]

      HBsAg loss was defined as HBsAg changing from positive at baseline to negative at a postbaseline. The M = F approach was used for this analysis.

    25. Percentage of Participants With Serological Response: Seroconversion to Anti-HBs at Week 24 [Week 24]

      HBsAg seroconversion was defined as HBsAg loss and HBsAb test changing from negative/missing at baseline to positive at a postbaseline visit. The M = F approach was used for this analysis.

    26. Percentage of Participants With Serological Response: Seroconversion to Anti-HBs at Week 48 [Week 48]

      HBsAg seroconversion was defined as HBsAg loss and HBsAb test changing from negative/missing at baseline to positive at a postbaseline visit. The M = F approach was used for this analysis.

    27. Percentage of Participants With Serological Response: Seroconversion to Anti-HBs at Week 96 [Week 96]

      HBsAg seroconversion was defined as HBsAg loss and HBsAb test changing from negative/missing at baseline to positive at a postbaseline visit. The M = F approach was used for this analysis.

    28. Percentage of Participants With Serological Response: Loss of HBeAg in HBeAg-Positive Participants at Week 24 [Week 24]

      HBeAg loss was defined as HBeAg changing from positive at baseline to negative at a postbaseline. The M = F approach was used for this analysis.

    29. Percentage of Participants With Serological Response: Loss of HBeAg in HBeAg-Positive Participants at Week 48 [Week 48]

      HBeAg loss was defined as HBeAg changing from positive at baseline to negative at a postbaseline. The M = F approach was used for this analysis.

    30. Percentage of Participants With Serological Response: Loss of HBeAg in HBeAg-Positive Participants at Week 96 [Week 96]

      HBeAg loss was defined as HBeAg changing from positive at baseline to negative at a postbaseline. The M = F approach was used for this analysis.

    31. Percentage of Participants With Serological Response: Seroconversion to Anti-HBe in HBeAg-Positive Participants at Week 24 [Week 24]

      HBeAg seroconversion was defined as HBeAg loss and HBeAb test changing from negative/missing at baseline to positive at a postbaseline visit. The M = F approach was used for this analysis.

    32. Percentage of Participants With Serological Response: Seroconversion to Anti-HBe in HBeAg-Positive Participants at Week 48 [Week 48]

      HBeAg seroconversion was defined as HBeAg loss and HBeAb test changing from negative/missing at baseline to positive at a postbaseline visit. The M = F approach was used for this analysis.

    33. Percentage of Participants With Serological Response: Seroconversion to Anti-HBe in HBeAg-Positive Participants at Week 96 [Week 96]

      HBeAg seroconversion was defined as HBeAg loss and HBeAb test changing from negative/missing at baseline to positive at a postbaseline visit. The M = F approach was used for this analysis.

    34. Percentage of Participants With Normal Alanine Aminotransferase (ALT) at Week 24 by Central Laboratory and the American Association for the Study of Liver Diseases (AASLD) Criteria [Week 24]

      Central laboratory ULN for ALT were as follows: ≤ 43 U/L for males aged 18 to < 69 years and ≤ 35 U/L for males aged ≥ 69 years; ≤ 34 U/L for females aged 18 to < 69 years and ≤ 32 U/L for females aged ≥ 69 years. The ULN for ALT using the 2018 AASLD normal range was 25 U/L for females and 35 U/L for males. The M = F approach was used for this analysis.

    35. Percentage of Participants With Normal ALT at Week 48 by Central Laboratory and the AASLD Criteria [Week 48]

      Central laboratory ULN for ALT were as follows: ≤ 43 U/L for males aged 18 to < 69 years and ≤ 35 U/L for males aged ≥ 69 years; ≤ 34 U/L for females aged 18 to < 69 years and ≤ 32 U/L for females aged ≥ 69 years. The ULN for ALT using the 2018 AASLD normal range was 25 U/L for females and 35 U/L for males. The M = F approach was used for this analysis.

    36. Percentage of Participants With Normal ALT at Week 96 by Central Laboratory and the AASLD Criteria [Week 96]

      Central laboratory ULN for ALT were as follows: ≤ 43 U/L for males aged 18 to < 69 years and ≤ 35 U/L for males aged ≥ 69 years; ≤ 34 U/L for females aged 18 to < 69 years and ≤ 32 U/L for females aged ≥ 69 years. The ULN for ALT using the 2018 AASLD normal range was 25 U/L for females and 35 U/L for males. The M = F approach was used for this analysis.

    37. Percentage of Participants With Normalized ALT at Week 24 by Central Laboratory and the AASLD Criteria [Week 24]

      ALT normalization was defined as an ALT value that changed from above the normal range at baseline to within the normal range at the given postbaseline visit. Central laboratory ULN for ALT were as follows: ≤ 43 U/L for males aged 18 to < 69 years and ≤ 35 U/L for males aged ≥ 69 years; ≤ 34 U/L for females aged 18 to < 69 years and ≤ 32 U/L for females aged ≥ 69 years. The ULN for ALT using the 2018 AASLD normal range was 25 U/L for females and 35 U/L for males. The M = F approach was used for this analysis.

    38. Percentage of Participants With Normalized ALT at Week 48 by Central Laboratory and the AASLD Criteria [Week 48]

      ALT normalization was defined as an ALT value that changed from above the normal range at baseline to within the normal range at the given postbaseline visit. Central laboratory ULN for ALT were as follows: ≤ 43 U/L for males aged 18 to < 69 years and ≤ 35 U/L for males aged ≥ 69 years; ≤ 34 U/L for females aged 18 to < 69 years and ≤ 32 U/L for females aged ≥ 69 years. The ULN for ALT using the 2018 AASLD normal range was 25 U/L for females and 35 U/L for males. The M = F approach was used for this analysis.

    39. Percentage of Participants With Normalized ALT at Week 96 by Central Laboratory and the AASLD Criteria [Week 96]

      ALT normalization was defined as an ALT value that changed from above the normal range at baseline to within the normal range at the given postbaseline visit. Central laboratory ULN for ALT were as follows: ≤ 43 U/L for males aged 18 to < 69 years and ≤ 35 U/L for males aged ≥ 69 years; ≤ 34 U/L for females aged 18 to < 69 years and ≤ 32 U/L for females aged ≥ 69 years. The ULN for ALT using the 2018 AASLD normal range was 25 U/L for females and 35 U/L for males. The M = F approach was used for this analysis.

    40. Change From Baseline in FibroTest® Score at Week 24 [Baseline, Week 24]

      The FibroTest® score is used to assess liver fibrosis. Scores range from 0.00 to 1.00, with higher scores indicating a greater degree of fibrosis. Change from baseline was calculated as the value at Week 24 minus the value at Baseline.

    41. Change From Baseline in FibroTest® Score at Week 48 [Baseline, Week 48]

      The FibroTest® score is used to assess liver fibrosis. Scores range from 0.00 to 1.00, with higher scores indicating a greater degree of fibrosis. Change from baseline was calculated as the value at Week 48 minus the value at Baseline.

    42. Change From Baseline in FibroTest® Score at Week 96 [Week 96]

      The FibroTest® score is used to assess liver fibrosis. Scores range from 0.00 to 1.00, with higher scores indicating a greater degree of fibrosis. Change from baseline was calculated as the value at Week 96 minus the value at Baseline.

    43. Change From Baseline in Child-Pugh-Turcotte (CPT) Score in Hepatically Impaired Participants at Week 24 [Baseline, Week 24]

      CPT scores grade the severity of cirrhosis and are used to determine the need for liver transplantation. Scores can range from 5 to 15, with higher scores indicating a greater severity of disease.

    44. Change From Baseline in CPT Score in Hepatically Impaired Participants at Week 48 [Baseline, Week 48]

      CPT scores grade the severity of cirrhosis and are used to determine the need for liver transplantation. Scores can range from 5 to 15, with higher scores indicating a greater severity of disease.

    45. Change From Baseline in CPT Score in Hepatically Impaired Participants at Week 96 [Baseline, Week 96]

      CPT scores grade the severity of cirrhosis and are used to determine the need for liver transplantation. Scores can range from 5 to 15, with higher scores indicating a greater severity of disease.

    46. Change From Baseline in Model for End-Stage Liver Disease (MELD) Score in Hepatically Impaired Participants at Week 24 [Baseline, Week 24]

      MELD scores are used to assess prognosis and suitability for liver transplantation. Scores can range from 6 to 40, with higher scores indicating greater disease severity.

    47. Change From Baseline in MELD Score in Hepatically Impaired Participants at Week 48 [Baseline, Week 48]

      MELD scores are used to assess prognosis and suitability for liver transplantation. Scores can range from 6 to 40, with higher scores indicating greater disease severity.

    48. Change From Baseline in MELD Score in Hepatically Impaired Participants at Week 96 [Baseline, Week 96]

      MELD scores are used to assess prognosis and suitability for liver transplantation. Scores can range from 6 to 40, with higher scores indicating greater disease severity.

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    18 Years and Older
    Sexes Eligible for Study:
    All
    Accepts Healthy Volunteers:
    No
    Key Inclusion Criteria:
    All Participants (Parts A and B):
    • Adult male or non-pregnant female individuals

    • Documented evidence of chronic HBV infection

    • Alanine aminotransferase (ALT) ≤ 10 × upper limit of normal (ULN)

    Part A Only (renal impairment):
    • Maintained on TDF and/or other OAV treatment(s) for CHB for at least 48 weeks and with viral suppression (HBV deoxyribonucleic acid [DNA] < lower limit of quantitation [LLOQ]) for ≥ 6 months prior to screening

    • All individuals must have HBV DNA < 20 International units per milliliter (IU/mL) at screening by central laboratory

    • Both Hepatitis B e-Antigen (HBeAg) positive and negative individuals are eligible to participate

    • Moderate renal impairment (30 milliliters per minute [mL/min] ≤ estimated glomerular filtration rate by the cockcroft-gault formula [eGFRcg] ≤ 59 mL/min), severe renal impairment (15 mL/min ≤ eGFRcg < 30 mL/min) or end stage renal disease (ESRD) (eGFR < 15 mL/min) maintained on hemodialysis (HD)

    • Stable renal function (for participants with moderate or severe impairment): serum creatinine measured at least once within three months prior to screening. The measurement difference between the value measured within three months prior to screening versus the screening value must be ≤ 25% of the screening value

    Part B Only (hepatic impairment):
    • Maintained on TDF and/or other OAV(s) for CHB for at least 48 weeks and with viral suppression (HBV DNA < LLOQ) for ≥ 6 months prior to screening

    • All individuals must have HBV DNA < 20 IU/mL at screening by central laboratory

    • Both HBeAg positive and negative individuals are eligible to participate

    • Child-pugh-turcotte (CPT) score of 7-12 (inclusive) OR a past history of CPT score ≥ 7 and any CPT score ≤ 12 at screening

    • eGFRCG ≥ 30 mL/min using the Cockcroft-Gault equation

    Key Exclusion Criteria:
    All Individuals (Parts A & B):
    • Women who are breastfeeding or who believe they may wish to become pregnant during the course of the study

    • Males and females of reproductive potential who are unwilling to use an "effective", protocol-specified method(s) of contraception during the study

    • Co-infection with hepatitis C virus (HCV), human immunodeficiency virus (HIV), or hepatitis D virus (HDV)

    • Prior Interferon (IFN) use within 6 months of screening

    • Evidence of hepatocellular carcinoma

    • Received solid organ or bone marrow transplant

    • Significant cardiovascular, pulmonary, or neurological disease

    • Malignancy within 5 years prior to screening, with the exception of specific cancers that are cured by surgical resection (basal cell skin cancer, etc.). Individuals under evaluation for possible malignancy are not eligible

    • Currently receiving therapy with immunomodulators (e.g. corticosteroids), nephrotoxic agents, or agents capable of modifying renal excretion

    • Known hypersensitivity to study drugs, metabolites, or formulation excipients

    • Current alcohol or substance abuse judged by the investigator to potentially interfere with individual's compliance

    • Any other clinical condition or prior therapy that, in the opinion of the Investigator, would make the individual unsuitable for the study or unable to comply with dosing requirements.

    Part A Only (Renal Impairment):
    • Current or historical evidence of clinical hepatic decompensation (e.g., ascites, encephalopathy or variceal hemorrhage)

    • Abnormal hematological and biochemical parameters, including:

    • Hemoglobin < 9 grams per deciliter (g/dL)

    • Absolute neutrophil count < 750/cubic millimeter (mm^3)

    • Platelets ≤ 50,000/mm^3

    • Aspartate aminotransferase (AST) > 10 × ULN

    • Albumin < 3.0 g/dL

    • Total bilirubin > 2.5 × ULN

    • International normalized ratio of prothrombin time (INR) > 1.5 × ULN (unless stable on anticoagulant regimen)

    • Individuals with ESRD (i.e. eGFRcg < 15 mL/min) not on HD, or those on other forms of renal replacement therapy (i.e. peritoneal dialysis)

    Part B Only (Hepatic Impairment):
    • Active variceal bleeding within 6 months or prior placement of a portosystemic shunt (such as transjugular intrahepatic portosystemic shunt [TIPS])

    • History of hepatorenal syndrome, hepatopulmonary syndrome, Grade 3 or Grade 4 hepatic encephalopathy, or spontaneous bacterial peritonitis within 6 months of screening

    • Grade 2 hepatic encephalopathy at screening

    • Model for end-stage liver disease (MELD) score ≥ 30

    • Abnormal hematological and biochemical parameters, including

    • Absolute neutrophil count < 750/mm^3

    • Platelets < 30,000/mm^3

    • Hemoglobin < 8.0 g/dL

    Note: Other protocol defined Inclusion/Exclusion criteria may apply.

    Contacts and Locations

    Locations

    Site City State Country Postal Code
    1 Coalition of Inclusive Medicine Los Angeles California United States 90020
    2 Silicon Valley Research Institute, Inc San Jose California United States 95128
    3 Henry Ford Health System Detroit Michigan United States 48202
    4 Harborview Medical Center Seattle Washington United States 98104
    5 University of Calgary Liver Unit Calgary Canada T2N4Z6
    6 Centre de Recherche du Centre Hospitalier de l'Universite de Montreal Montreal Canada H2X 0A9
    7 University Health Network,Toronto general Hospital,Toronto centre for liver disease Toronto Canada M5G 2C4
    8 Toronto Liver Centre Toronto Canada M6H 3M1
    9 (G.I.R.I.) GI Research Institute Vancouver Canada V6Z 2K5
    10 Prince of Wales Hospital Shatin NT Hong Kong
    11 Princess Margaret Hospital Kowloon Hong Kong
    12 Alice Ho Miu Ling Nethersole Hospital Tai Po Hong Kong
    13 U.O. Medicina Generale Epatologia IRCCS Humanitas Centro di Ricerca Traslazionale in Epatologia Rozzano Milan Italy 20089
    14 Dipartimento di Scienze Mediche e Chirurgiche (DIMEC) AOU Policlinico S.Orsola-Malpighi di Bologna Bologna Italy 40138
    15 UOC Gastroenterol-Epatol.-Fondazione IRCCS Ca Granda Milan Italy 20122
    16 Dong-A University Hospital Busan Korea, Republic of 49201
    17 Pusan National University Hospital Busan Korea, Republic of 49241
    18 Asan Medical Center Seoul Korea, Republic of 05505
    19 Yonsei University Health System, Severance Hospital Seoul Korea, Republic of 120-752
    20 Auckland Clinical Studies Grafton Auckland New Zealand 1010
    21 Changhua Christian Hospital Changhua Taiwan 500
    22 Ditmanson Medical Foundation Chia-Yi Christian Hospital Chiayi City Taiwan 60002
    23 Kaohsiung Chang Gung Memorial Hospital Kaohsiung City Taiwan 83301
    24 Kaohsiung Medical University Chung-Ho Memorial Hospital Kaohsiung Taiwan 807
    25 Taichung Veterans Genl Hosp Taichung Taiwan 40705
    26 National Taiwan University Hospital Taipei Taiwan 10001
    27 Veterans General Hospital-Taipei Taipei Taiwan 11217
    28 Chang Gung Medical Foundation, Linkou Chang Gung Memorial Hospital Taoyuan City Taiwan 333
    29 Nottingham University Hospital London United Kingdom NG7 2UH
    30 King's College Hospital NHS Foundation Trust London United Kingdom SE5 9RS

    Sponsors and Collaborators

    • Gilead Sciences

    Investigators

    • Study Director: Gilead Study Director, Gilead Sciences

    Study Documents (Full-Text)

    More Information

    Publications

    None provided.
    Responsible Party:
    Gilead Sciences
    ClinicalTrials.gov Identifier:
    NCT03180619
    Other Study ID Numbers:
    • GS-US-320-4035
    • 2016-004625-16
    First Posted:
    Jun 8, 2017
    Last Update Posted:
    Sep 27, 2021
    Last Verified:
    Aug 1, 2021
    Individual Participant Data (IPD) Sharing Statement:
    Yes
    Plan to Share IPD:
    Yes
    Studies a U.S. FDA-regulated Drug Product:
    Yes
    Studies a U.S. FDA-regulated Device Product:
    No
    Additional relevant MeSH terms:

    Study Results

    Participant Flow

    Recruitment Details Participants were enrolled at study sites in Asia Pacific, North America, New Zealand and Europe. The first participant was screened on 29 June 2017. The last study visit occurred on 04 September 2020.
    Pre-assignment Detail 147 participants were screened.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment
    Arm/Group Description Participants with chronic hepatitis B (CHB) and moderate or severe renal impairment who were virologically suppressed and took tenofovir disoproxil fumarate (TDF), a TDF-containing anti-hepatitis B virus (HBV) regimen, or other oral antivirals (OAVs), switched to tenofovir alafenamide (TAF) and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and took TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and took TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Period Title: Overall Study
    STARTED 78 15 31
    COMPLETED 67 14 25
    NOT COMPLETED 11 1 6

    Baseline Characteristics

    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment Total
    Arm/Group Description Participants with CHB and moderate or severe renal impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or other OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Total of all reporting groups
    Overall Participants 78 15 31 124
    Age (years) [Mean (Standard Deviation) ]
    Mean (Standard Deviation) [years]
    66
    (10.1)
    54
    (12.8)
    55
    (10.8)
    61
    (11.8)
    Sex: Female, Male (Count of Participants)
    Female
    21
    26.9%
    3
    20%
    10
    32.3%
    34
    27.4%
    Male
    57
    73.1%
    12
    80%
    21
    67.7%
    90
    72.6%
    Race/Ethnicity, Customized (Count of Participants)
    Hispanic or Latino
    0
    0%
    0
    0%
    1
    3.2%
    1
    0.8%
    Not Hispanic or Latino
    78
    100%
    15
    100%
    30
    96.8%
    123
    99.2%
    Race/Ethnicity, Customized (Count of Participants)
    Asian
    59
    75.6%
    13
    86.7%
    25
    80.6%
    97
    78.2%
    Black or African American
    3
    3.8%
    0
    0%
    1
    3.2%
    4
    3.2%
    Native Hawaiian or Pacific Islander
    0
    0%
    2
    13.3%
    0
    0%
    2
    1.6%
    White
    15
    19.2%
    0
    0%
    4
    12.9%
    19
    15.3%
    Other
    1
    1.3%
    0
    0%
    1
    3.2%
    2
    1.6%
    Region of Enrollment (Count of Participants)
    New Zealand
    0
    0%
    2
    13.3%
    0
    0%
    2
    1.6%
    Canada
    22
    28.2%
    0
    0%
    3
    9.7%
    25
    20.2%
    South Korea
    12
    15.4%
    3
    20%
    5
    16.1%
    20
    16.1%
    Hong Kong
    14
    17.9%
    1
    6.7%
    2
    6.5%
    17
    13.7%
    United States
    3
    3.8%
    0
    0%
    7
    22.6%
    10
    8.1%
    Taiwan
    13
    16.7%
    9
    60%
    11
    35.5%
    33
    26.6%
    Italy
    13
    16.7%
    0
    0%
    2
    6.5%
    15
    12.1%
    United Kingdom
    1
    1.3%
    0
    0%
    1
    3.2%
    2
    1.6%
    Alanine Aminotransferase (ALT) (Units/Liter (U/L)) [Mean (Standard Deviation) ]
    Mean (Standard Deviation) [Units/Liter (U/L)]
    20
    (9.6)
    14
    (5.2)
    28
    (12.4)
    21
    (10.8)
    ALT Level Based on Central Lab Normal Range (Count of Participants)
    ≤ ULN
    75
    96.2%
    15
    100%
    27
    87.1%
    117
    94.4%
    > ULN - 5xULN
    3
    3.8%
    0
    0%
    4
    12.9%
    7
    5.6%
    > 5xULN
    0
    0%
    0
    0%
    0
    0%
    0
    0%
    ALT Level Based on 2018 American Association for the Study of Liver Diseases (AASLD) Normal Range (Count of Participants)
    ≤ ULN
    73
    93.6%
    15
    100%
    21
    67.7%
    109
    87.9%
    > ULN - 5xULN
    5
    6.4%
    0
    0%
    10
    32.3%
    15
    12.1%
    > 5xULN
    0
    0%
    0
    0%
    0
    0%
    0
    0%
    Hepatitis B Virus (HBV) Deoxyribonucleic Acid (DNA) Categories (Count of Participants)
    < 20 IU/mL
    77
    98.7%
    14
    93.3%
    31
    100%
    122
    98.4%
    ≥ 20 IU/mL - < 69 IU/mL
    0
    0%
    1
    6.7%
    0
    0%
    1
    0.8%
    ≥ 69 IU/mL
    1
    1.3%
    0
    0%
    0
    0%
    1
    0.8%
    Estimated Glomerular Filtration Rate by the Cockcroft-Gault Formula (eGFRcg) (milliliter/minute (mL/min)) [Mean (Standard Deviation) ]
    Mean (Standard Deviation) [milliliter/minute (mL/min)]
    45.5
    (10.89)
    7.8
    (2.63)
    98.8
    (33.94)
    54.3
    (34.16)
    Hip Bone Mineral Density (BMD) Status (Count of Participants)
    Normal (T-score ≥ -1.0)
    34
    43.6%
    3
    20%
    18
    58.1%
    55
    44.4%
    Osteopenia (-2.5 ≤ T-score < -1.0)
    36
    46.2%
    5
    33.3%
    12
    38.7%
    53
    42.7%
    Osteoporosis (T-score < -2.5)
    7
    9%
    7
    46.7%
    1
    3.2%
    15
    12.1%
    Spine BMD Status (Count of Participants)
    Normal (T-score ≥ -1.0)
    37
    47.4%
    5
    33.3%
    16
    51.6%
    58
    46.8%
    Osteopenia (-2.5 ≤ T-score < -1.0)
    22
    28.2%
    7
    46.7%
    9
    29%
    38
    30.6%
    Osteoporosis (T-score < -2.5)
    19
    24.4%
    3
    20%
    6
    19.4%
    28
    22.6%
    Hepatitis s-Antigen (HBsAg) (log10 IU/mL) (log10 IU/mL) [Mean (Standard Deviation) ]
    Mean (Standard Deviation) [log10 IU/mL]
    2.51
    (0.782)
    2.72
    (1.405)
    1.90
    (1.169)
    2.38
    (1.012)
    Hepatitis B e Antigen/Antibody (HBeAg/HBeAb) Status (Count of Participants)
    Positive/Negative
    13
    16.7%
    3
    20%
    3
    9.7%
    19
    15.3%
    Positive/Positive
    0
    0%
    0
    0%
    0
    0%
    0
    0%
    Negative/Negative
    15
    19.2%
    1
    6.7%
    10
    32.3%
    26
    21%
    Negative/Positive
    50
    64.1%
    11
    73.3%
    18
    58.1%
    79
    63.7%
    FibroTest® Score (units on a scale) [Mean (Standard Deviation) ]
    Mean (Standard Deviation) [units on a scale]
    0.53
    (0.199)
    0.37
    (0.199)
    0.75
    (0.206)
    0.57
    (0.231)
    Child-Pugh-Turcotte (CPT) Score (units on a scale) [Mean (Standard Deviation) ]
    Mean (Standard Deviation) [units on a scale]
    6
    (1.7)
    6
    (1.7)
    Model for End-Stage Liver Disease (MELD) Score (units on a scale) [Mean (Standard Deviation) ]
    Mean (Standard Deviation) [units on a scale]
    10.7
    (3.40)
    10.7
    (3.40)

    Outcome Measures

    1. Primary Outcome
    Title Percentage of Participants Achieving Virologic Response (Plasma Hepatitis B Virus [HBV] Deoxyribonucleic Acid [DNA] < 20 IU/mL) at Week 24
    Description The percentage of participants with HBV DNA < 20 IU/mL at Week 24 was determined by the Missing = Failure (M = F) approach.
    Time Frame Week 24

    Outcome Measure Data

    Analysis Population Description
    The Full Analysis Set included all participants who were enrolled and received at least 1 dose of study drug.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment
    Arm/Group Description Participants with CHB and moderate or severe renal impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or other OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 78 15 31
    Number [percentage of participants]
    97.4
    124.9%
    100.0
    666.7%
    100.0
    322.6%
    2. Primary Outcome
    Title Percentage of Participants Who Experienced Graded Treatment-Emergent Adverse Events (AEs) at Week 24
    Description Treatment-emergent AEs were defined as: Any AEs with an onset date on or after the study drug start date and no later than the study drug stop date + 3 days after permanent discontinuation of study drug; Any AEs with onset date on or after the study drug start date for those who have not permanently discontinued study drug; Any AEs leading to premature discontinuation of study drug. The most severe graded AE from all tests was counted for each participant.
    Time Frame Week 24

    Outcome Measure Data

    Analysis Population Description
    The Safety Analysis Set included all participants who were enrolled and received at least 1 dose of study drug.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment
    Arm/Group Description Participants with CHB and moderate or severe renal impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or other OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 78 15 31
    Any Treatment-emergent AEs
    53.8
    69%
    73.3
    488.7%
    54.8
    176.8%
    Grade 3 and Above Treatment-emergent AEs
    6.4
    8.2%
    13.3
    88.7%
    6.5
    21%
    3. Primary Outcome
    Title Percentage of Participants Who Experienced Graded Treatment-Emergent Laboratory Abnormalities at Week 24
    Description Graded treatment-emergent laboratory abnormalities were defined as values that increased at least 1 toxicity grade from baseline at any postbaseline visit, up to and including the date of last dose of study drug + 3 days for participants who permanently discontinued study drug or the last available date in the database snapshot for participants who were on treatment at the time of the analysis. The most severe graded abnormality from all tests was counted for each participant.
    Time Frame Week 24

    Outcome Measure Data

    Analysis Population Description
    Participants in the Safety Analysis Set were analyzed.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment
    Arm/Group Description Participants with CHB and moderate or severe renal impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or other OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 78 15 31
    Any Graded Laboratory Abnormality
    96.2
    123.3%
    100.0
    666.7%
    90.3
    291.3%
    Grade 3 and Above Laboratory Abnormality
    11.5
    14.7%
    46.7
    311.3%
    48.4
    156.1%
    4. Secondary Outcome
    Title Percentage of Participants Who Experienced Graded Treatment-Emergent AEs at Week 48
    Description Treatment-emergent AEs were defined as: Any AEs with an onset date on or after the study drug start date and no later than the study drug stop date + 3 days after permanent discontinuation of study drug; Any AEs with onset date on or after the study drug start date for those who have not permanently discontinued study drug; Any AEs leading to premature discontinuation of study drug. The most severe graded AE from all tests was counted for each participant.
    Time Frame Week 48

    Outcome Measure Data

    Analysis Population Description
    Participants in the Safety Analysis Set were analyzed.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment
    Arm/Group Description Participants with CHB and moderate or severe renal impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or other OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 78 15 31
    Any Treatment-emergent AE
    71.8
    92.1%
    86.7
    578%
    71.0
    229%
    Grade 3 and Above Treatment-emergent AEs
    15.4
    19.7%
    20.0
    133.3%
    12.9
    41.6%
    5. Secondary Outcome
    Title Percentage of Participants Who Experienced Graded Treatment-Emergent AEs at Week 96
    Description Treatment-emergent AEs were defined as: Any AEs with an onset date on or after the study drug start date and no later than the study drug stop date + 3 days after permanent discontinuation of study drug; Any AEs with onset date on or after the study drug start date for those who have not permanently discontinued study drug; Any AEs leading to premature discontinuation of study drug. The most severe graded AE from all tests was counted for each participant.
    Time Frame Week 96

    Outcome Measure Data

    Analysis Population Description
    Participants in the Safety Analysis Set were analyzed.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment
    Arm/Group Description Participants with chronic hepatitis B (CHB) and moderate or severe renal impairment who were virologically suppressed and took tenofovir disoproxil fumarate (TDF), a TDF-containing anti-hepatitis B virus (HBV) regimen, or other oral antivirals (OAVs), switched to tenofovir alafenamide (TAF) and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and took TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and took TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 78 15 31
    Any Treatment-emergent AEs
    74.4
    95.4%
    100.0
    666.7%
    77.4
    249.7%
    Grade 3 and Above treatment-emergent AEs
    17.9
    22.9%
    26.7
    178%
    25.8
    83.2%
    6. Secondary Outcome
    Title Percentage of Participants Who Experienced Graded Treatment-Emergent Laboratory Abnormalities at Week 48
    Description Graded treatment-emergent laboratory abnormalities were defined as values that increased at least 1 toxicity grade from baseline at any postbaseline visit, up to and including the date of last dose of study drug + 3 days for participants who permanently discontinued study drug or the last available date in the database snapshot for participants who were on treatment at the time of the analysis. The most severe graded abnormality from all tests was counted for each participant.
    Time Frame Week 48

    Outcome Measure Data

    Analysis Population Description
    Participants in the Safety Analysis Set were analyzed.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment
    Arm/Group Description Participants with CHB and moderate or severe renal impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or other OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 78 15 31
    Any Graded Laboratory Abnormality
    96.2
    123.3%
    100.0
    666.7%
    90.3
    291.3%
    Grade 3
    12.8
    16.4%
    40.0
    266.7%
    41.9
    135.2%
    Grade 4
    0
    0%
    26.7
    178%
    9.7
    31.3%
    7. Secondary Outcome
    Title Percentage of Participants Who Experienced Graded Treatment-Emergent Laboratory Abnormalities at Week 96
    Description Graded treatment-emergent laboratory abnormalities were defined as values that increased at least 1 toxicity grade from baseline at any post-baseline visit, up to and including the date of last dose of study drug + 3 days for participants who permanently discontinued study drug or the last available date in the database snapshot for participants who were on treatment at the time of the analysis. The most severe graded abnormality from all tests was counted for each participant.
    Time Frame Week 96

    Outcome Measure Data

    Analysis Population Description
    Participants in the Safety Analysis Set were analyzed.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment
    Arm/Group Description Participants with chronic hepatitis B (CHB) and moderate or severe renal impairment who were virologically suppressed and took tenofovir disoproxil fumarate (TDF), a TDF-containing anti-hepatitis B virus (HBV) regimen, or other oral antivirals (OAVs), switched to tenofovir alafenamide (TAF) and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and took TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and took TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 78 15 31
    Any Graded Laboratory Abnormality
    96.2
    100.0
    100.0
    Grade 3
    15.4
    46.7
    41.9
    Grade 4
    1.3
    26.7
    12.9
    8. Secondary Outcome
    Title Change From Baseline in Estimated Glomerular Filtration Rate by the Cockcroft-Gault Formula (eGFRcg) in Participants With Moderate or Severe Renal Impairment and Hepatically Impaired Participants at Week 24
    Description GFR is a measure of the rate at which blood is filtered by the kidney. Cockcroft-Gault is an equation (calculation) used to estimate GFR based on serum creatinine, weight, and gender. eGFRcg = (140 - age in years) x (body weight in kg) x (0.85 if female) divided by 72 x serum creatinine in mg/dL. Moderate renal impairment= 30 mL/min ≤ eGFRCG ≤ 59 mL/min Severe renal impairment= 15 mL/min ≤ eGFRCG < 30 mL/min Change from baseline was calculated as the value at Week 24 minus the value at Baseline.
    Time Frame Baseline, Week 24

    Outcome Measure Data

    Analysis Population Description
    Participants in the Safety Analysis Set with available data were analyzed.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part B: Hepatic Impairment
    Arm/Group Description Participants with CHB and moderate or severe renal impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or other OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 77 31
    Median (Inter-Quartile Range) [mL/min]
    -0.4
    1.9
    9. Secondary Outcome
    Title Change From Baseline in eGFRcg in Participants With Moderate or Severe Renal Impairment and Hepatically Impaired Participants at Week 48
    Description GFR is a measure of the rate at which blood is filtered by the kidney. Cockcroft-Gault is an equation (calculation) used to estimate GFR based on serum creatinine, weight, and gender. eGFRcg = (140 - age in years) x (body weight in kg) x (0.85 if female) divided by 72 x serum creatinine in mg/dL. Moderate renal impairment= 30 mL/min ≤ eGFRCG ≤ 59 mL/min Severe renal impairment= 15 mL/min ≤ eGFRCG < 30 mL/min Change from baseline was calculated as the value at Week 48 minus the value at Baseline.
    Time Frame Baseline, Week 48

    Outcome Measure Data

    Analysis Population Description
    Participants in the Safety Analysis Set with available data were analyzed.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part B: Hepatic Impairment
    Arm/Group Description Participants with CHB and moderate or severe renal impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or other OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 73 31
    Median (Inter-Quartile Range) [mL/min]
    -0.5
    1.2
    10. Secondary Outcome
    Title Change From Baseline in eGFRcg in Participants With Moderate or Severe Renal Impairment and Hepatically Impaired Participants at Week 96
    Description GFR is a measure of the rate at which blood is filtered by the kidney. Cockcroft-Gault is an equation (calculation) used to estimate GFR based on serum creatinine, weight, and gender. eGFRcg = (140 - age in years) x (body weight in kg) x (0.85 if female) divided by 72 x serum creatinine in mg/dL. Moderate renal impairment= 30 mL/min ≤ eGFRCG ≤ 59 mL/min Severe renal impairment= 15 mL/min ≤ eGFRCG < 30 mL/min Change from baseline was calculated as the value at Week 96 minus the value at Baseline.
    Time Frame Baseline, Week 96

    Outcome Measure Data

    Analysis Population Description
    Participants in the Safety Analysis Set with available data were analyzed.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part B: Hepatic Impairment
    Arm/Group Description Participants with chronic hepatitis B (CHB) and moderate or severe renal impairment who were virologically suppressed and took tenofovir disoproxil fumarate (TDF), a TDF-containing anti-hepatitis B virus (HBV) regimen, or other oral antivirals (OAVs), switched to tenofovir alafenamide (TAF) and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and took TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 66 25
    Median (Inter-Quartile Range) [mL/min]
    1.0
    -2.4
    11. Secondary Outcome
    Title Percent Change From Baseline in Hip Bone Mineral Density (BMD) at Week 24
    Description Percent change = Change from baseline at a postbaseline visit/baseline * 100%.
    Time Frame Baseline, Week 24

    Outcome Measure Data

    Analysis Population Description
    Participants in the Hip Dual-Energy X-Ray Absorptiometry (DXA) Analysis Set (all participants who were enrolled and received at least 1 dose of study drug and had non-missing baseline hip BMD values) with available data were analyzed.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment
    Arm/Group Description Participants with CHB and moderate or severe renal impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or other OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 74 15 31
    Mean (Standard Deviation) [percent change]
    0.135
    (1.8348)
    0.322
    (2.1835)
    0.322
    (2.5105)
    12. Secondary Outcome
    Title Percent Change From Baseline in Hip BMD at Week 48
    Description Percent change = Change from baseline at a postbaseline visit/baseline * 100%.
    Time Frame Baseline, Week 48

    Outcome Measure Data

    Analysis Population Description
    Participants in Hip DXA Analysis Set with available data were analyzed.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment
    Arm/Group Description Participants with CHB and moderate or severe renal impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or other OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 72 14 31
    Mean (Standard Deviation) [percent change]
    0.565
    (2.6160)
    -1.075
    (3.6355)
    -0.221
    (3.0158)
    13. Secondary Outcome
    Title Percent Change From Baseline in Hip BMD at Week 96
    Description Percent change = Change from baseline at a postbaseline visit/baseline * 100%.
    Time Frame Baseline, Week 96

    Outcome Measure Data

    Analysis Population Description
    Participants in Hip DXA Analysis Set with available data were analyzed.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment
    Arm/Group Description Participants with chronic hepatitis B (CHB) and moderate or severe renal impairment who were virologically suppressed and took tenofovir disoproxil fumarate (TDF), a TDF-containing anti-hepatitis B virus (HBV) regimen, or other oral antivirals (OAVs), switched to tenofovir alafenamide (TAF) and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and took TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and took TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 59 13 24
    Mean (Standard Deviation) [percent change]
    0.425
    (2.8381)
    -0.834
    (4.7171)
    0.277
    (3.2549)
    14. Secondary Outcome
    Title Percent Change From Baseline in Spine BMD at Week 24
    Description Percent change = Change from baseline at a postbaseline visit/baseline * 100%.
    Time Frame Baseline, Week 24

    Outcome Measure Data

    Analysis Population Description
    Participants in the Spine DXA Analysis Set (all participants who were enrolled and received at least 1 dose of study drug and had non-missing baseline spine BMD values) with available data were analyzed.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment
    Arm/Group Description Participants with CHB and moderate or severe renal impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or other OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 76 15 31
    Mean (Standard Deviation) [percent change]
    1.229
    (3.4252)
    0.683
    (3.1370)
    1.258
    (2.3416)
    15. Secondary Outcome
    Title Percent Change From Baseline in Spine BMD at Week 48
    Description Percent change = Change from baseline at a postbaseline visit/baseline * 100%.
    Time Frame Baseline, Week 48

    Outcome Measure Data

    Analysis Population Description
    Participants in the Spine DXA Analysis Set with available data were analyzed.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment
    Arm/Group Description Participants with CHB and moderate or severe renal impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or other OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 73 14 31
    Mean (Standard Deviation) [percent change]
    1.516
    (3.7486)
    0.016
    (4.1636)
    0.535
    (3.4386)
    16. Secondary Outcome
    Title Percent Change From Baseline in Spine BMD at Week 96
    Description Percent change = Change from baseline at a postbaseline visit/baseline * 100%.
    Time Frame Baseline, Week 96

    Outcome Measure Data

    Analysis Population Description
    Participants in the Spine DXA Analysis Set with available data were analyzed.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment
    Arm/Group Description Participants with chronic hepatitis B (CHB) and moderate or severe renal impairment who were virologically suppressed and took tenofovir disoproxil fumarate (TDF), a TDF-containing anti-hepatitis B virus (HBV) regimen, or other oral antivirals (OAVs), switched to tenofovir alafenamide (TAF) and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and took TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and took TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 61 13 23
    Mean (Standard Deviation) [percent change]
    1.293
    (4.4136)
    -0.283
    (4.5327)
    -0.249
    (3.9127)
    17. Secondary Outcome
    Title Percentage of Participants Achieving Virologic Response (Plasma HBV DNA < 20 IU/mL) at Week 48
    Description The percentage of participants with HBV DNA < 20 IU/mL at Week 48 was determined by the Missing = Failure (M = F) approach.
    Time Frame Weeks 48

    Outcome Measure Data

    Analysis Population Description
    Participants in the Full Analysis Set were analyzed.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment
    Arm/Group Description Participants with CHB and moderate or severe renal impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or other OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 78 15 31
    Number [percentage of participants]
    92.3
    118.3%
    93.3
    622%
    100.0
    322.6%
    18. Secondary Outcome
    Title Percentage of Participants Achieving Virologic Response (Plasma HBV DNA < 20 IU/mL) at Week 96
    Description The percentage of participants with HBV DNA < 20 IU/mL at Week 48 was determined by the Missing = Failure (M = F) approach.
    Time Frame Weeks 96

    Outcome Measure Data

    Analysis Population Description
    Participants in the Full Analysis Set were analyzed.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment
    Arm/Group Description Participants with chronic hepatitis B (CHB) and moderate or severe renal impairment who were virologically suppressed and took tenofovir disoproxil fumarate (TDF), a TDF-containing anti-hepatitis B virus (HBV) regimen, or other oral antivirals (OAVs), switched to tenofovir alafenamide (TAF) and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and took TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and took TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 78 15 31
    Number [percentage of participants]
    83.3
    106.8%
    86.7
    578%
    77.4
    249.7%
    19. Secondary Outcome
    Title Percentage of Participants With Plasma HBV DNA < 20 IU/mL and Target Detected (≥ Lower Limit of Detection [LLOD]) at Week 24
    Description The percentage of participants with HBV DNA < 20 IU/mL and target detected (≥ LLOD; i.e. 10 IU/mL) at Week 24 was determined by the M = F approach.
    Time Frame Week 24

    Outcome Measure Data

    Analysis Population Description
    Participants in the Full Analysis Set were analyzed.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment
    Arm/Group Description Participants with CHB and moderate or severe renal impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or other OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 78 15 31
    Number [percentage of participants]
    21.8
    27.9%
    40.0
    266.7%
    22.6
    72.9%
    20. Secondary Outcome
    Title Percentage of Participants With Plasma HBV DNA < 20 IU/mL and Target Detected (≥ LLOD) at Week 48
    Description The percentage of participants with HBV DNA < 20 IU/mL and target detected (≥ LLOD; i.e. 10 IU/mL) at Week 48 was determined by the M = F approach.
    Time Frame Week 48

    Outcome Measure Data

    Analysis Population Description
    Participants in the Full Analysis Set were analyzed.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment
    Arm/Group Description Participants with CHB and moderate or severe renal impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or other OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 78 15 31
    Number [percentage of participants]
    26.9
    34.5%
    26.7
    178%
    25.8
    83.2%
    21. Secondary Outcome
    Title Percentage of Participants With Plasma HBV DNA < 20 IU/mL and Target Detected (≥ LLOD) at Week 96
    Description The percentage of participants with HBV DNA < 20 IU/mL and target detected (≥ LLOD; i.e. 10 IU/mL) at Week 96 was determined by the M = F approach.
    Time Frame Week 96

    Outcome Measure Data

    Analysis Population Description
    Participants in the Full Analysis Set were analyzed.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment
    Arm/Group Description Participants with chronic hepatitis B (CHB) and moderate or severe renal impairment who were virologically suppressed and took tenofovir disoproxil fumarate (TDF), a TDF-containing anti-hepatitis B virus (HBV) regimen, or other oral antivirals (OAVs), switched to tenofovir alafenamide (TAF) and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and took TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and took TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 78 15 31
    Number [percentage of participants]
    14.1
    18.1%
    20.0
    133.3%
    0
    0%
    22. Secondary Outcome
    Title Percentage of Participants With Plasma HBV DNA < 20 IU/mL and Target Not Detected (< LLOD) at Week 24
    Description The percentage of participants with HBV DNA < 20 IU/mL and target not detected (< LLOD; i.e. 10 IU/mL) at Week 24 was determined by the M = F approach.
    Time Frame Week 24

    Outcome Measure Data

    Analysis Population Description
    Participants in the Full Analysis Set were analyzed.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment
    Arm/Group Description Participants with CHB and moderate or severe renal impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or other OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 78 15 31
    Number [percentage of participants]
    75.6
    96.9%
    60.0
    400%
    77.4
    249.7%
    23. Secondary Outcome
    Title Percentage of Participants With Plasma HBV DNA < 20 IU/mL and Target Not Detected (< LLOD) at Week 48
    Description The percentage of participants with HBV DNA < 20 IU/mL and target not detected (< LLOD; i.e. 10 IU/mL) at Week 48 was determined by the M = F approach.
    Time Frame Weeks 48

    Outcome Measure Data

    Analysis Population Description
    Participants in the Full Analysis Set were analyzed.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment
    Arm/Group Description Participants with CHB and moderate or severe renal impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or other OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 78 15 31
    Number [percentage of participants]
    65.4
    83.8%
    66.7
    444.7%
    74.2
    239.4%
    24. Secondary Outcome
    Title Percentage of Participants With Plasma HBV DNA < 20 IU/mL and Target Not Detected (< LLOD) at Week 96
    Description The percentage of participants with HBV DNA < 20 IU/mL and target not detected (< LLOD; i.e. 10 IU/mL) at Week 96 was determined by the M = F approach.
    Time Frame Weeks 96

    Outcome Measure Data

    Analysis Population Description
    Participants in the Full Analysis Set were analyzed.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment
    Arm/Group Description Participants with chronic hepatitis B (CHB) and moderate or severe renal impairment who were virologically suppressed and took tenofovir disoproxil fumarate (TDF), a TDF-containing anti-hepatitis B virus (HBV) regimen, or other oral antivirals (OAVs), switched to tenofovir alafenamide (TAF) and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and took TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and took TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 78 15 31
    Number [percentage of participants]
    69.2
    88.7%
    66.7
    444.7%
    77.4
    249.7%
    25. Secondary Outcome
    Title Percentage of Participants With Serological Response: Loss of Hepatitis B s-Antigen (HBsAg) at Week 24
    Description HBsAg loss was defined as HBsAg changing from positive at baseline to negative at a postbaseline. The M = F approach was used for this analysis.
    Time Frame Week 24

    Outcome Measure Data

    Analysis Population Description
    The Serologically Evaluable Full Analysis Set for HBsAg Loss/Seroconversion (all participants who were enrolled and received at least 1 dose of study drug, and with HBsAg positive and HBsAb negative or missing at baseline) with available data were analyzed..
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment
    Arm/Group Description Participants with CHB and moderate or severe renal impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or other OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 78 15 30
    Number [percentage of participants]
    0
    0%
    0
    0%
    0
    0%
    26. Secondary Outcome
    Title Percentage of Participants With Serological Response: Loss of HBsAg at Week 48
    Description HBsAg loss was defined as HBsAg changing from positive at baseline to negative at a postbaseline. The M = F approach was used for this analysis.
    Time Frame Week 48

    Outcome Measure Data

    Analysis Population Description
    Participants in the Serologically Evaluable Full Analysis Set for HBsAg Loss/Seroconversion with available data were analyzed.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment
    Arm/Group Description Participants with CHB and moderate or severe renal impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or other OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 78 15 30
    Number [percentage of participants]
    0.0
    0%
    6.7
    44.7%
    3.3
    10.6%
    27. Secondary Outcome
    Title Percentage of Participants With Serological Response: Loss of HBsAg at Week 96
    Description HBsAg loss was defined as HBsAg changing from positive at baseline to negative at a postbaseline. The M = F approach was used for this analysis.
    Time Frame Week 96

    Outcome Measure Data

    Analysis Population Description
    Participants in the Serologically Evaluable Full Analysis Set for HBsAg Loss/Seroconversion with available data were analyzed.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment
    Arm/Group Description Participants with chronic hepatitis B (CHB) and moderate or severe renal impairment who were virologically suppressed and took tenofovir disoproxil fumarate (TDF), a TDF-containing anti-hepatitis B virus (HBV) regimen, or other oral antivirals (OAVs), switched to tenofovir alafenamide (TAF) and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and took TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and took TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 78 15 30
    Number [percentage of participants]
    0
    0%
    0
    0%
    6.7
    21.6%
    28. Secondary Outcome
    Title Percentage of Participants With Serological Response: Seroconversion to Anti-HBs at Week 24
    Description HBsAg seroconversion was defined as HBsAg loss and HBsAb test changing from negative/missing at baseline to positive at a postbaseline visit. The M = F approach was used for this analysis.
    Time Frame Week 24

    Outcome Measure Data

    Analysis Population Description
    The Serologically Evaluable Full Analysis Set for HBsAg Loss/Seroconversion were analyzed.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment
    Arm/Group Description Participants with CHB and moderate or severe renal impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or other OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 78 15 30
    Number [percentage of participants]
    0
    0%
    0
    0%
    0
    0%
    29. Secondary Outcome
    Title Percentage of Participants With Serological Response: Seroconversion to Anti-HBs at Week 48
    Description HBsAg seroconversion was defined as HBsAg loss and HBsAb test changing from negative/missing at baseline to positive at a postbaseline visit. The M = F approach was used for this analysis.
    Time Frame Week 48

    Outcome Measure Data

    Analysis Population Description
    Participants in the Serologically Evaluable Full Analysis Set for HBsAg Loss/Seroconversion were analyzed.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment
    Arm/Group Description Participants with CHB and moderate or severe renal impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or other OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 78 15 30
    Number [percentage of participants]
    0
    0%
    0
    0%
    0
    0%
    30. Secondary Outcome
    Title Percentage of Participants With Serological Response: Seroconversion to Anti-HBs at Week 96
    Description HBsAg seroconversion was defined as HBsAg loss and HBsAb test changing from negative/missing at baseline to positive at a postbaseline visit. The M = F approach was used for this analysis.
    Time Frame Week 96

    Outcome Measure Data

    Analysis Population Description
    The Serologically Evaluable Full Analysis Set for HBsAg Loss/Seroconversion were analyzed.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment
    Arm/Group Description Participants with chronic hepatitis B (CHB) and moderate or severe renal impairment who were virologically suppressed and took tenofovir disoproxil fumarate (TDF), a TDF-containing anti-hepatitis B virus (HBV) regimen, or other oral antivirals (OAVs), switched to tenofovir alafenamide (TAF) and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and took TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and took TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 78 15 30
    Number [percentage of participants]
    0
    0%
    0
    0%
    0
    0%
    31. Secondary Outcome
    Title Percentage of Participants With Serological Response: Loss of HBeAg in HBeAg-Positive Participants at Week 24
    Description HBeAg loss was defined as HBeAg changing from positive at baseline to negative at a postbaseline. The M = F approach was used for this analysis.
    Time Frame Week 24

    Outcome Measure Data

    Analysis Population Description
    The Serologically Evaluable Full Analysis Set for HBeAg Loss/Seroconversion included all participants who were enrolled and received at least 1 dose of study drug, and with HBeAg positive and HBeAb negative or missing at baseline.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment
    Arm/Group Description Participants with CHB and moderate or severe renal impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or other OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 13 3 3
    Number [percentage of participants]
    0
    0%
    0
    0%
    0
    0%
    32. Secondary Outcome
    Title Percentage of Participants With Serological Response: Loss of HBeAg in HBeAg-Positive Participants at Week 48
    Description HBeAg loss was defined as HBeAg changing from positive at baseline to negative at a postbaseline. The M = F approach was used for this analysis.
    Time Frame Week 48

    Outcome Measure Data

    Analysis Population Description
    Participants in the Serologically Evaluable Full Analysis Set were analyzed.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment
    Arm/Group Description Participants with CHB and moderate or severe renal impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or other OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 13 3 3
    Number [percentage of participants]
    0
    0%
    0
    0%
    0
    0%
    33. Secondary Outcome
    Title Percentage of Participants With Serological Response: Loss of HBeAg in HBeAg-Positive Participants at Week 96
    Description HBeAg loss was defined as HBeAg changing from positive at baseline to negative at a postbaseline. The M = F approach was used for this analysis.
    Time Frame Week 96

    Outcome Measure Data

    Analysis Population Description
    The Serologically Evaluable Full Analysis Set for HBeAg Loss/Seroconversion included all participants who were enrolled and received at least 1 dose of study drug, and with HBeAg positive and HBeAb negative or missing at baseline.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment
    Arm/Group Description Participants with chronic hepatitis B (CHB) and moderate or severe renal impairment who were virologically suppressed and took tenofovir disoproxil fumarate (TDF), a TDF-containing anti-hepatitis B virus (HBV) regimen, or other oral antivirals (OAVs), switched to tenofovir alafenamide (TAF) and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and took TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and took TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 13 3 3
    Number [percentage of participants]
    0
    0%
    33.3
    222%
    0
    0%
    34. Secondary Outcome
    Title Percentage of Participants With Serological Response: Seroconversion to Anti-HBe in HBeAg-Positive Participants at Week 24
    Description HBeAg seroconversion was defined as HBeAg loss and HBeAb test changing from negative/missing at baseline to positive at a postbaseline visit. The M = F approach was used for this analysis.
    Time Frame Week 24

    Outcome Measure Data

    Analysis Population Description
    The Serologically Evaluable Full Analysis Set for HBeAg Loss/Seroconversion were analyzed.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment
    Arm/Group Description Participants with CHB and moderate or severe renal impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or other OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 13 3 3
    Number [percentage of participants]
    0
    0%
    0
    0%
    0
    0%
    35. Secondary Outcome
    Title Percentage of Participants With Serological Response: Seroconversion to Anti-HBe in HBeAg-Positive Participants at Week 48
    Description HBeAg seroconversion was defined as HBeAg loss and HBeAb test changing from negative/missing at baseline to positive at a postbaseline visit. The M = F approach was used for this analysis.
    Time Frame Week 48

    Outcome Measure Data

    Analysis Population Description
    The Serologically Evaluable Full Analysis Set for HBeAg Loss/Seroconversion were analyzed.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment
    Arm/Group Description Participants with CHB and moderate or severe renal impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or other OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 13 3 3
    Number [percentage of participants]
    0
    0%
    0
    0%
    0
    0%
    36. Secondary Outcome
    Title Percentage of Participants With Serological Response: Seroconversion to Anti-HBe in HBeAg-Positive Participants at Week 96
    Description HBeAg seroconversion was defined as HBeAg loss and HBeAb test changing from negative/missing at baseline to positive at a postbaseline visit. The M = F approach was used for this analysis.
    Time Frame Week 96

    Outcome Measure Data

    Analysis Population Description
    The Serologically Evaluable Full Analysis Set for HBeAg Loss/Seroconversion were analyzed.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment
    Arm/Group Description Participants with chronic hepatitis B (CHB) and moderate or severe renal impairment who were virologically suppressed and took tenofovir disoproxil fumarate (TDF), a TDF-containing anti-hepatitis B virus (HBV) regimen, or other oral antivirals (OAVs), switched to tenofovir alafenamide (TAF) and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and took TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and took TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 13 3 3
    Number [percentage of participants]
    0
    0%
    33.3
    222%
    0
    0%
    37. Secondary Outcome
    Title Percentage of Participants With Normal Alanine Aminotransferase (ALT) at Week 24 by Central Laboratory and the American Association for the Study of Liver Diseases (AASLD) Criteria
    Description Central laboratory ULN for ALT were as follows: ≤ 43 U/L for males aged 18 to < 69 years and ≤ 35 U/L for males aged ≥ 69 years; ≤ 34 U/L for females aged 18 to < 69 years and ≤ 32 U/L for females aged ≥ 69 years. The ULN for ALT using the 2018 AASLD normal range was 25 U/L for females and 35 U/L for males. The M = F approach was used for this analysis.
    Time Frame Week 24

    Outcome Measure Data

    Analysis Population Description
    Participants in the Full Analysis Set were analyzed.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment
    Arm/Group Description Participants with CHB and moderate or severe renal impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or other OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 78 15 31
    ALT by central laboratory
    92.3
    118.3%
    93.3
    622%
    83.9
    270.6%
    ALT by AASLD criteria
    87.2
    111.8%
    93.3
    622%
    80.6
    260%
    38. Secondary Outcome
    Title Percentage of Participants With Normal ALT at Week 48 by Central Laboratory and the AASLD Criteria
    Description Central laboratory ULN for ALT were as follows: ≤ 43 U/L for males aged 18 to < 69 years and ≤ 35 U/L for males aged ≥ 69 years; ≤ 34 U/L for females aged 18 to < 69 years and ≤ 32 U/L for females aged ≥ 69 years. The ULN for ALT using the 2018 AASLD normal range was 25 U/L for females and 35 U/L for males. The M = F approach was used for this analysis.
    Time Frame Week 48

    Outcome Measure Data

    Analysis Population Description
    Participants in the Full Analysis Set were analyzed.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment
    Arm/Group Description Participants with CHB and moderate or severe renal impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or other OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 78 15 31
    ALT by central laboratory
    89.7
    115%
    86.7
    578%
    90.3
    291.3%
    ALT by AASLD criteria
    87.2
    111.8%
    80.0
    533.3%
    80.6
    260%
    39. Secondary Outcome
    Title Percentage of Participants With Normal ALT at Week 96 by Central Laboratory and the AASLD Criteria
    Description Central laboratory ULN for ALT were as follows: ≤ 43 U/L for males aged 18 to < 69 years and ≤ 35 U/L for males aged ≥ 69 years; ≤ 34 U/L for females aged 18 to < 69 years and ≤ 32 U/L for females aged ≥ 69 years. The ULN for ALT using the 2018 AASLD normal range was 25 U/L for females and 35 U/L for males. The M = F approach was used for this analysis.
    Time Frame Week 96

    Outcome Measure Data

    Analysis Population Description
    Participants in the Full Analysis Set were analyzed.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment
    Arm/Group Description Participants with chronic hepatitis B (CHB) and moderate or severe renal impairment who were virologically suppressed and took tenofovir disoproxil fumarate (TDF), a TDF-containing anti-hepatitis B virus (HBV) regimen, or other oral antivirals (OAVs), switched to tenofovir alafenamide (TAF) and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and took TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and took TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 78 15 31
    ALT by central laboratory
    82.1
    105.3%
    86.7
    578%
    71.0
    229%
    ALT by AASLD criteria
    74.4
    95.4%
    86.7
    578%
    58.1
    187.4%
    40. Secondary Outcome
    Title Percentage of Participants With Normalized ALT at Week 24 by Central Laboratory and the AASLD Criteria
    Description ALT normalization was defined as an ALT value that changed from above the normal range at baseline to within the normal range at the given postbaseline visit. Central laboratory ULN for ALT were as follows: ≤ 43 U/L for males aged 18 to < 69 years and ≤ 35 U/L for males aged ≥ 69 years; ≤ 34 U/L for females aged 18 to < 69 years and ≤ 32 U/L for females aged ≥ 69 years. The ULN for ALT using the 2018 AASLD normal range was 25 U/L for females and 35 U/L for males. The M = F approach was used for this analysis.
    Time Frame Week 24

    Outcome Measure Data

    Analysis Population Description
    Participants in the Full Analysis Set with Baseline ALT > ULN were analyzed.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment
    Arm/Group Description Participants with CHB and moderate or severe renal impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or other OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 5 0 10
    Normalized ALT by Central Laboratory
    66.7
    85.5%
    50.0
    333.3%
    Normalized ALT by AASLD Criteria
    40.0
    51.3%
    60.0
    400%
    41. Secondary Outcome
    Title Percentage of Participants With Normalized ALT at Week 48 by Central Laboratory and the AASLD Criteria
    Description ALT normalization was defined as an ALT value that changed from above the normal range at baseline to within the normal range at the given postbaseline visit. Central laboratory ULN for ALT were as follows: ≤ 43 U/L for males aged 18 to < 69 years and ≤ 35 U/L for males aged ≥ 69 years; ≤ 34 U/L for females aged 18 to < 69 years and ≤ 32 U/L for females aged ≥ 69 years. The ULN for ALT using the 2018 AASLD normal range was 25 U/L for females and 35 U/L for males. The M = F approach was used for this analysis.
    Time Frame Week 48

    Outcome Measure Data

    Analysis Population Description
    Participants in the Full Analysis Set with Baseline ALT > ULN were analyzed.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment
    Arm/Group Description Participants with CHB and moderate or severe renal impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or other OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 5 0 10
    Normalized ALT by Central Laboratory
    33.3
    42.7%
    75.0
    500%
    Normalized ALT by AASLD Criteria
    60.0
    76.9%
    60.0
    400%
    42. Secondary Outcome
    Title Percentage of Participants With Normalized ALT at Week 96 by Central Laboratory and the AASLD Criteria
    Description ALT normalization was defined as an ALT value that changed from above the normal range at baseline to within the normal range at the given postbaseline visit. Central laboratory ULN for ALT were as follows: ≤ 43 U/L for males aged 18 to < 69 years and ≤ 35 U/L for males aged ≥ 69 years; ≤ 34 U/L for females aged 18 to < 69 years and ≤ 32 U/L for females aged ≥ 69 years. The ULN for ALT using the 2018 AASLD normal range was 25 U/L for females and 35 U/L for males. The M = F approach was used for this analysis.
    Time Frame Week 96

    Outcome Measure Data

    Analysis Population Description
    Participants in the Full Analysis Set with Baseline ALT > ULN were analyzed.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment
    Arm/Group Description Participants with chronic hepatitis B (CHB) and moderate or severe renal impairment who were virologically suppressed and took tenofovir disoproxil fumarate (TDF), a TDF-containing anti-hepatitis B virus (HBV) regimen, or other oral antivirals (OAVs), switched to tenofovir alafenamide (TAF) and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and took TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and took TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 5 0 10
    Normalized ALT by Central Laboratory
    33.3
    42.7%
    50.0
    333.3%
    Normalized ALT by AASLD Criteria
    20.0
    25.6%
    50.0
    333.3%
    43. Secondary Outcome
    Title Change From Baseline in FibroTest® Score at Week 24
    Description The FibroTest® score is used to assess liver fibrosis. Scores range from 0.00 to 1.00, with higher scores indicating a greater degree of fibrosis. Change from baseline was calculated as the value at Week 24 minus the value at Baseline.
    Time Frame Baseline, Week 24

    Outcome Measure Data

    Analysis Population Description
    Participants in the Full Analysis Set with available data were analyzed.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment
    Arm/Group Description Participants with CHB and moderate or severe renal impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or other OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 74 15 31
    Mean (Standard Deviation) [units on a scale]
    -0.01
    (0.099)
    -0.01
    (0.064)
    -0.05
    (0.106)
    44. Secondary Outcome
    Title Change From Baseline in FibroTest® Score at Week 48
    Description The FibroTest® score is used to assess liver fibrosis. Scores range from 0.00 to 1.00, with higher scores indicating a greater degree of fibrosis. Change from baseline was calculated as the value at Week 48 minus the value at Baseline.
    Time Frame Baseline, Week 48

    Outcome Measure Data

    Analysis Population Description
    Participants in the Full Analysis Set with available data were analyzed.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment
    Arm/Group Description Participants with CHB and moderate or severe renal impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or other OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 73 14 31
    Mean (Standard Deviation) [units on a scale]
    -0.03
    (0.102)
    -0.01
    (0.071)
    -0.03
    (0.102)
    45. Secondary Outcome
    Title Change From Baseline in FibroTest® Score at Week 96
    Description The FibroTest® score is used to assess liver fibrosis. Scores range from 0.00 to 1.00, with higher scores indicating a greater degree of fibrosis. Change from baseline was calculated as the value at Week 96 minus the value at Baseline.
    Time Frame Week 96

    Outcome Measure Data

    Analysis Population Description
    Participants in the Full Analysis Set with available data were analyzed.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease Part B: Hepatic Impairment
    Arm/Group Description Participants with chronic hepatitis B (CHB) and moderate or severe renal impairment who were virologically suppressed and took tenofovir disoproxil fumarate (TDF), a TDF-containing anti-hepatitis B virus (HBV) regimen, or other oral antivirals (OAVs), switched to tenofovir alafenamide (TAF) and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and took TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and took TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 65 13 26
    Mean (Standard Deviation) [units on a scale]
    -0.01
    (0.114)
    0.03
    (0.107)
    -0.02
    (0.118)
    46. Secondary Outcome
    Title Change From Baseline in Child-Pugh-Turcotte (CPT) Score in Hepatically Impaired Participants at Week 24
    Description CPT scores grade the severity of cirrhosis and are used to determine the need for liver transplantation. Scores can range from 5 to 15, with higher scores indicating a greater severity of disease.
    Time Frame Baseline, Week 24

    Outcome Measure Data

    Analysis Population Description
    Participants in the Full Analysis Set only from Part B (Hepatic Impairment) were analyzed.
    Arm/Group Title Part B: Hepatic Impairment
    Arm/Group Description Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 31
    Mean (Standard Deviation) [units on a scale]
    0
    (1.1)
    47. Secondary Outcome
    Title Change From Baseline in CPT Score in Hepatically Impaired Participants at Week 48
    Description CPT scores grade the severity of cirrhosis and are used to determine the need for liver transplantation. Scores can range from 5 to 15, with higher scores indicating a greater severity of disease.
    Time Frame Baseline, Week 48

    Outcome Measure Data

    Analysis Population Description
    Participants in the Full Analysis Set only from Part B (Hepatic Impairment) were analyzed.
    Arm/Group Title Part B: Hepatic Impairment
    Arm/Group Description Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 31
    Mean (Standard Deviation) [units on a scale]
    0
    (1.1)
    48. Secondary Outcome
    Title Change From Baseline in CPT Score in Hepatically Impaired Participants at Week 96
    Description CPT scores grade the severity of cirrhosis and are used to determine the need for liver transplantation. Scores can range from 5 to 15, with higher scores indicating a greater severity of disease.
    Time Frame Baseline, Week 96

    Outcome Measure Data

    Analysis Population Description
    Participants in the Full Analysis Set only from Part B (Hepatic Impairment) with available data were analyzed.
    Arm/Group Title Part B: Hepatic Impairment
    Arm/Group Description Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and took TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 25
    Mean (Standard Deviation) [units on a scale]
    0
    (1.2)
    49. Secondary Outcome
    Title Change From Baseline in Model for End-Stage Liver Disease (MELD) Score in Hepatically Impaired Participants at Week 24
    Description MELD scores are used to assess prognosis and suitability for liver transplantation. Scores can range from 6 to 40, with higher scores indicating greater disease severity.
    Time Frame Baseline, Week 24

    Outcome Measure Data

    Analysis Population Description
    Participants in the Full Analysis Set only from Part B (Hepatic Impairment) were analyzed.
    Arm/Group Title Part B: Hepatic Impairment
    Arm/Group Description Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 31
    Mean (Standard Deviation) [units on a scale]
    -0.6
    (1.94)
    50. Secondary Outcome
    Title Change From Baseline in MELD Score in Hepatically Impaired Participants at Week 48
    Description MELD scores are used to assess prognosis and suitability for liver transplantation. Scores can range from 6 to 40, with higher scores indicating greater disease severity.
    Time Frame Baseline, Week 48

    Outcome Measure Data

    Analysis Population Description
    Participants in the Full Analysis Set only from Part B (Hepatic Impairment) with available data were analyzed.
    Arm/Group Title Part B: Hepatic Impairment
    Arm/Group Description Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 30
    Mean (Standard Deviation) [units on a scale]
    0.1
    (2.35)
    51. Secondary Outcome
    Title Change From Baseline in MELD Score in Hepatically Impaired Participants at Week 96
    Description MELD scores are used to assess prognosis and suitability for liver transplantation. Scores can range from 6 to 40, with higher scores indicating greater disease severity.
    Time Frame Baseline, Week 96

    Outcome Measure Data

    Analysis Population Description
    Participants in the Full Analysis Set only from Part B (Hepatic Impairment) with available data were analyzed.
    Arm/Group Title Part B: Hepatic Impairment
    Arm/Group Description Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and took TDF, a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    Measure Participants 25
    Mean (Standard Deviation) [units on a scale]
    -1.0
    (1.61)

    Adverse Events

    Time Frame Adverse Events: From the first dose date up to last dose date (maximum: 108.1 weeks) plus 3 days; All-Cause Mortality: Enrollment up to last dose date (maximum: 166.2 weeks) plus 3 days
    Adverse Event Reporting Description Adverse Events: The Safety Analysis Set included all participants who were enrolled and received at least 1 dose of study drug. All-Cause Mortality: The Full Analysis Set included all participants who were enrolled and received at least one dose of study drug.
    Arm/Group Title Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease (Cohort 2) Part B (Hepatic Impairment): Moderate or Severe Hepatic Impair
    Arm/Group Description Participants with CHB and moderate or severe renal impairment who were virologically suppressed and taking TDF, a TDF-containing anti-HBV regimen, or other OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and end stage renal disease who were virologically suppressed and taking TDF), a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks. Participants with CHB and moderate or severe hepatic impairment who were virologically suppressed and taking TDF), a TDF-containing anti-HBV regimen, or OAVs, switched to TAF and received TAF 25 mg tablet once daily orally for 96 weeks.
    All Cause Mortality
    Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease (Cohort 2) Part B (Hepatic Impairment): Moderate or Severe Hepatic Impair
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 2/78 (2.6%) 1/15 (6.7%) 2/31 (6.5%)
    Serious Adverse Events
    Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease (Cohort 2) Part B (Hepatic Impairment): Moderate or Severe Hepatic Impair
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 12/78 (15.4%) 8/15 (53.3%) 10/31 (32.3%)
    Blood and lymphatic system disorders
    Anaemia 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Thrombocytopenia 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Cardiac disorders
    Atrial flutter 0/78 (0%) 0/15 (0%) 1/31 (3.2%)
    Atrioventricular block complete 1/78 (1.3%) 0/15 (0%) 0/31 (0%)
    Ear and labyrinth disorders
    Deafness neurosensory 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Endocrine disorders
    Adrenal mass 0/78 (0%) 0/15 (0%) 1/31 (3.2%)
    Eye disorders
    Cataract 2/78 (2.6%) 0/15 (0%) 0/31 (0%)
    Gastrointestinal disorders
    Abdominal pain 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Ascites 0/78 (0%) 0/15 (0%) 1/31 (3.2%)
    Colitis 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Duodenal ulcer haemorrhage 0/78 (0%) 0/15 (0%) 1/31 (3.2%)
    Gingival bleeding 0/78 (0%) 0/15 (0%) 1/31 (3.2%)
    Intestinal obstruction 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Upper gastrointestinal haemorrhage 0/78 (0%) 0/15 (0%) 1/31 (3.2%)
    General disorders
    Catheter site discharge 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Hepatobiliary disorders
    Bile duct stone 0/78 (0%) 0/15 (0%) 1/31 (3.2%)
    Hepatic failure 0/78 (0%) 0/15 (0%) 1/31 (3.2%)
    Hepatorenal syndrome 0/78 (0%) 0/15 (0%) 1/31 (3.2%)
    Infections and infestations
    Bacteraemia 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Fungal cystitis 0/78 (0%) 0/15 (0%) 1/31 (3.2%)
    Lower respiratory tract infection 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Lower respiratory tract infection viral 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Peritonitis bacterial 0/78 (0%) 0/15 (0%) 1/31 (3.2%)
    Pneumonia 2/78 (2.6%) 1/15 (6.7%) 0/31 (0%)
    Sepsis 0/78 (0%) 1/15 (6.7%) 1/31 (3.2%)
    Urinary tract infection 0/78 (0%) 0/15 (0%) 1/31 (3.2%)
    Injury, poisoning and procedural complications
    Arteriovenous fistula site complication 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Arteriovenous fistula thrombosis 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Drain site complication 0/78 (0%) 0/15 (0%) 1/31 (3.2%)
    Head injury 1/78 (1.3%) 0/15 (0%) 0/31 (0%)
    Shunt occlusion 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Subdural haematoma 0/78 (0%) 0/15 (0%) 1/31 (3.2%)
    Investigations
    Carcinoembryonic antigen increased 1/78 (1.3%) 0/15 (0%) 0/31 (0%)
    Model for end stage liver disease score increased 0/78 (0%) 0/15 (0%) 1/31 (3.2%)
    Metabolism and nutrition disorders
    Hyperkalaemia 1/78 (1.3%) 0/15 (0%) 0/31 (0%)
    Musculoskeletal and connective tissue disorders
    Back pain 1/78 (1.3%) 0/15 (0%) 0/31 (0%)
    Focal myositis 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Neoplasms benign, malignant and unspecified (incl cysts and polyps)
    Bladder cancer 1/78 (1.3%) 0/15 (0%) 0/31 (0%)
    Hepatocellular carcinoma 0/78 (0%) 1/15 (6.7%) 1/31 (3.2%)
    Lung neoplasm malignant 1/78 (1.3%) 0/15 (0%) 0/31 (0%)
    Ovarian cancer 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Rectal cancer 1/78 (1.3%) 0/15 (0%) 0/31 (0%)
    Nervous system disorders
    Encephalopathy 0/78 (0%) 0/15 (0%) 1/31 (3.2%)
    Hepatic encephalopathy 0/78 (0%) 0/15 (0%) 2/31 (6.5%)
    Ischaemic stroke 2/78 (2.6%) 0/15 (0%) 1/31 (3.2%)
    Subarachnoid haemorrhage 1/78 (1.3%) 0/15 (0%) 1/31 (3.2%)
    Respiratory, thoracic and mediastinal disorders
    Bronchospasm 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Dyspnoea 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Haemothorax 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Pleural effusion 0/78 (0%) 2/15 (13.3%) 0/31 (0%)
    Pneumonia aspiration 1/78 (1.3%) 0/15 (0%) 1/31 (3.2%)
    Respiratory failure 1/78 (1.3%) 0/15 (0%) 0/31 (0%)
    Other (Not Including Serious) Adverse Events
    Part A (Renal Impairment): Moderate or Severe Renal Impairment Part A (Renal Impairment): End Stage Renal Disease (Cohort 2) Part B (Hepatic Impairment): Moderate or Severe Hepatic Impair
    Affected / at Risk (%) # Events Affected / at Risk (%) # Events Affected / at Risk (%) # Events
    Total 34/78 (43.6%) 15/15 (100%) 23/31 (74.2%)
    Blood and lymphatic system disorders
    Anaemia 2/78 (2.6%) 3/15 (20%) 1/31 (3.2%)
    Blood loss anaemia 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Coagulopathy 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Thrombocytopenia 0/78 (0%) 1/15 (6.7%) 1/31 (3.2%)
    Thrombotic thrombocytopenic purpura 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Ear and labyrinth disorders
    Deafness neurosensory 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Ear haemorrhage 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Ear pain 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Vertigo 1/78 (1.3%) 1/15 (6.7%) 0/31 (0%)
    Eye disorders
    Cataract 1/78 (1.3%) 1/15 (6.7%) 1/31 (3.2%)
    Cataract nuclear 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Conjunctival haemorrhage 0/78 (0%) 1/15 (6.7%) 1/31 (3.2%)
    Iridocyclitis 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Gastrointestinal disorders
    Abdominal pain 2/78 (2.6%) 1/15 (6.7%) 2/31 (6.5%)
    Abdominal pain lower 1/78 (1.3%) 1/15 (6.7%) 0/31 (0%)
    Ascites 0/78 (0%) 2/15 (13.3%) 4/31 (12.9%)
    Constipation 2/78 (2.6%) 4/15 (26.7%) 3/31 (9.7%)
    Dental caries 0/78 (0%) 1/15 (6.7%) 2/31 (6.5%)
    Diarrhoea 3/78 (3.8%) 3/15 (20%) 6/31 (19.4%)
    Flatulence 0/78 (0%) 0/15 (0%) 2/31 (6.5%)
    Haemorrhoids 2/78 (2.6%) 1/15 (6.7%) 0/31 (0%)
    Mouth ulceration 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Nausea 1/78 (1.3%) 1/15 (6.7%) 1/31 (3.2%)
    Peptic ulcer 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Portal hypertensive gastropathy 0/78 (0%) 0/15 (0%) 2/31 (6.5%)
    Stomatitis 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Toothache 3/78 (3.8%) 1/15 (6.7%) 0/31 (0%)
    Vomiting 0/78 (0%) 1/15 (6.7%) 2/31 (6.5%)
    General disorders
    Chest discomfort 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Fatigue 0/78 (0%) 0/15 (0%) 2/31 (6.5%)
    Oedema peripheral 1/78 (1.3%) 1/15 (6.7%) 2/31 (6.5%)
    Pain 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Pyrexia 0/78 (0%) 3/15 (20%) 5/31 (16.1%)
    Hepatobiliary disorders
    Jaundice 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Infections and infestations
    Cellulitis 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Conjunctivitis 0/78 (0%) 1/15 (6.7%) 2/31 (6.5%)
    Endophthalmitis 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Hordeolum 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Nasopharyngitis 6/78 (7.7%) 0/15 (0%) 0/31 (0%)
    Pneumonia 2/78 (2.6%) 1/15 (6.7%) 1/31 (3.2%)
    Skin infection 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Upper respiratory tract infection 11/78 (14.1%) 3/15 (20%) 6/31 (19.4%)
    Urinary tract infection 3/78 (3.8%) 1/15 (6.7%) 0/31 (0%)
    Injury, poisoning and procedural complications
    Arteriovenous fistula site complication 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Incision site pain 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Ligament sprain 1/78 (1.3%) 1/15 (6.7%) 0/31 (0%)
    Limb injury 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Procedural pain 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Shunt occlusion 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Vascular pseudoaneurysm 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Investigations
    Blood bilirubin increased 0/78 (0%) 0/15 (0%) 2/31 (6.5%)
    Blood creatinine increased 1/78 (1.3%) 0/15 (0%) 2/31 (6.5%)
    Bone density decreased 1/78 (1.3%) 0/15 (0%) 5/31 (16.1%)
    Metabolism and nutrition disorders
    Hyperkalaemia 1/78 (1.3%) 2/15 (13.3%) 0/31 (0%)
    Hyperlipidaemia 1/78 (1.3%) 0/15 (0%) 2/31 (6.5%)
    Hypokalaemia 0/78 (0%) 1/15 (6.7%) 1/31 (3.2%)
    Metabolic acidosis 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Vitamin B12 deficiency 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Musculoskeletal and connective tissue disorders
    Arthralgia 0/78 (0%) 2/15 (13.3%) 3/31 (9.7%)
    Back pain 2/78 (2.6%) 1/15 (6.7%) 0/31 (0%)
    Bone loss 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Groin pain 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Musculoskeletal pain 1/78 (1.3%) 3/15 (20%) 1/31 (3.2%)
    Neoplasms benign, malignant and unspecified (incl cysts and polyps)
    Hepatocellular carcinoma 1/78 (1.3%) 1/15 (6.7%) 0/31 (0%)
    Ovarian cancer stage I 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Nervous system disorders
    Amnesia 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Carotid arteriosclerosis 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Cerebral atrophy 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Cerebrovascular accident 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Cognitive disorder 1/78 (1.3%) 1/15 (6.7%) 0/31 (0%)
    Dementia 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Dizziness 3/78 (3.8%) 1/15 (6.7%) 0/31 (0%)
    Dyskinesia 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Headache 2/78 (2.6%) 0/15 (0%) 2/31 (6.5%)
    Hydrocephalus 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Vascular encephalopathy 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Psychiatric disorders
    Insomnia 4/78 (5.1%) 1/15 (6.7%) 2/31 (6.5%)
    Renal and urinary disorders
    Chronic kidney disease 0/78 (0%) 0/15 (0%) 2/31 (6.5%)
    Haematuria 3/78 (3.8%) 1/15 (6.7%) 1/31 (3.2%)
    Renal mass 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Respiratory, thoracic and mediastinal disorders
    Cough 4/78 (5.1%) 0/15 (0%) 6/31 (19.4%)
    Dyspnoea 1/78 (1.3%) 2/15 (13.3%) 0/31 (0%)
    Haemoptysis 0/78 (0%) 1/15 (6.7%) 1/31 (3.2%)
    Nasal congestion 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Nasal obstruction 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Oropharyngeal pain 1/78 (1.3%) 0/15 (0%) 3/31 (9.7%)
    Pleural effusion 0/78 (0%) 3/15 (20%) 2/31 (6.5%)
    Productive cough 0/78 (0%) 2/15 (13.3%) 1/31 (3.2%)
    Pulmonary oedema 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Rhinorrhoea 1/78 (1.3%) 2/15 (13.3%) 0/31 (0%)
    Skin and subcutaneous tissue disorders
    Dermatitis 1/78 (1.3%) 1/15 (6.7%) 0/31 (0%)
    Pruritus 3/78 (3.8%) 2/15 (13.3%) 1/31 (3.2%)
    Skin lesion 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Vascular disorders
    Hypertension 2/78 (2.6%) 4/15 (26.7%) 1/31 (3.2%)
    Hypotension 0/78 (0%) 2/15 (13.3%) 0/31 (0%)
    Thrombosis 0/78 (0%) 1/15 (6.7%) 0/31 (0%)
    Venous occlusion 0/78 (0%) 1/15 (6.7%) 0/31 (0%)

    Limitations/Caveats

    [Not Specified]

    More Information

    Certain Agreements

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

    After conclusion of the study and without prior written approval from Gilead, investigators in this study may communicate, orally present, or publish in scientific journals or other media only after the following conditions have been met: The results of the study in their entirety have been publicly disclosed by or with the consent of Gilead in an abstract, manuscript, or presentation form; or The study has been completed at all study sites for at least 2 years

    Results Point of Contact

    Name/Title Gilead Clinical Study Information Center
    Organization Gilead Sciences
    Phone 1-833-445-3230 (GILEAD-0)
    Email GileadClinicalTrials@gilead.com
    Responsible Party:
    Gilead Sciences
    ClinicalTrials.gov Identifier:
    NCT03180619
    Other Study ID Numbers:
    • GS-US-320-4035
    • 2016-004625-16
    First Posted:
    Jun 8, 2017
    Last Update Posted:
    Sep 27, 2021
    Last Verified:
    Aug 1, 2021