STASEY: A Study to Evaluate the Safety and Tolerability of Prophylactic Emicizumab in Hemophilia A Patients With Inhibitors

Sponsor
Hoffmann-La Roche (Industry)
Overall Status
Completed
CT.gov ID
NCT03191799
Collaborator
(none)
195
72
1
38.5
2.7
0.1

Study Details

Study Description

Brief Summary

This is a phase IIIb, single arm, open-label, multi-center study to evaluate the safety and tolerability of emicizumab in participants with congenital hemophilia A who have documented inhibitors against Factor VIII (FVIII) at enrollment. Approximately 200 participants, aged 12 or older, will be enrolled in this study and are expected to be enrolled at approximately 85 sites globally. Participants will receive an initial weekly dose of prophylactic emicizumab subcutaneously for 4 weeks, followed by a weekly maintenance dose subcutaneously for the remainder of the 2-year treatment period.

Condition or Disease Intervention/Treatment Phase
Phase 3

Study Design

Study Type:
Interventional
Actual Enrollment :
195 participants
Allocation:
N/A
Intervention Model:
Single Group Assignment
Masking:
None (Open Label)
Primary Purpose:
Treatment
Official Title:
A Single-Arm, Multicenter Phase IIIB Clinical Trial to Evaluate the Safety and Tolerability of Prophylactic Emicizumab in Hemophilia A Patients With Inhibitors
Actual Study Start Date :
Sep 5, 2017
Actual Primary Completion Date :
Nov 19, 2020
Actual Study Completion Date :
Nov 19, 2020

Arms and Interventions

Arm Intervention/Treatment
Experimental: 1.5 mg/kg Emicizumab QW

Participants will receive initial weekly doses of prophylactic emicizumab subcutaneously for 4 weeks, followed by maintenance doses consisting of half the initial dose, administered subcutaneously for the remainder of the 2-year treatment period

Drug: Emicizumab
Initial dosing will be 3 mg/kg/week subcutaneously for 4 weeks; Maintenance dosing will follow at 1.5 mg/kg/week subcutaneously for the remainder of the 2-year treatment period
Other Names:
  • Hemlibra
  • RO5534262
  • ACE910
  • Outcome Measures

    Primary Outcome Measures

    1. Overall Summary of the Number of Participants With Adverse Events, Severity Assessed According to the World Health Organization (WHO) Toxicity Grading Scale [From Baseline until study completion (up to 2 years)]

      Investigators sought information on adverse events (AEs) at each contact with participants. The WHO toxicity grading scale was used for assessing AE severity (i.e., intensity of an AE); any AEs not specifically listed in the WHO toxicity grading scale were assessed for severity according to the following grades: Grade 1 is mild; Grade 2 is moderate, Grade 3 is severe; Grade 4 is life-threatening; and Grade 5 is death. Regardless of severity, some AEs may have also met seriousness criteria. The terms "severe" and "serious" are not synonymous; severity and seriousness were independently assessed for each AE. aPCC = activated prothrombin complex concentrate

    2. Adverse Events (AEs) Rates Per 100 Patient-Years for All-Grade AEs, Serious AEs, and Grade ≥3 AEs [From Baseline until study completion (up to 2 years)]

      Investigators sought information on adverse events (AEs) at each contact with participants. The WHO toxicity grading scale was used for assessing AE severity (i.e., intensity of an AE); any AEs not specifically listed in the WHO toxicity grading scale were assessed for severity according to the following grades: Grade 1 is mild; Grade 2 is moderate, Grade 3 is severe; Grade 4 is life-threatening; and Grade 5 is death. Regardless of severity, some AEs may have also met seriousness criteria. The terms "severe" and "serious" are not synonymous; severity and seriousness were independently assessed for each AE. The AE rate per 100 patient-years was computed as follows: AE Rate = (Number of AEs observed/ Total patient-years at risk)*100. Total patient-years at risk is the sum over all patients of the time intervals (in years) between start of study therapy (study day 1) and the end of follow up.

    3. Number of Participants by Hematology and Biochemistry Laboratory Parameter Test Results as Shifts From the WHO Toxicity Grade at Baseline to the Worst WHO Toxicity Grade Post-Baseline [Baseline, Weeks 2, 3, and 5; Months 3, 6, 9, 12, and 18; and at Early Termination/Study Completion (up to 24 months)]

      The World Health Organization (WHO) toxicity grading scale was used for determining the severity of laboratory abnormalities (i.e., test results outside of the reference range) for hematology and biochemistry parameters; Grade 0 is normal and Grades 1 to 4 represent worsening levels of the parameter outside of the normal range in the specified direction of the abnormality (high and low are above and below the range, respectively). Not every laboratory abnormality qualified as an adverse event (AE). A laboratory test result was reported as an AE if it met any of the following criteria: was accompanied by clinical symptoms; resulted in a change in study treatment; resulted in a medical intervention or a change in concomitant therapy; or was clinically significant in the investigator's judgment. Baseline was defined as the last available assessment prior to first receipt of study drug. Abs = absolute count; SGOT/AST = aspartate aminotransferase; SGPT/ALT = alanine aminotransferase

    4. Change From Baseline in Body Temperature at Specified Timepoints [Baseline, Weeks 2, 3, and 5; Months 3, 6, 9, 12, and 18; and at Early Termination/Study Completion (up to 24 months)]

      Vital signs that were measured included body temperature, pulse and respiratory rates, systolic and diastolic blood pressure, and weight. On treatment days, measurement occurred prior to emicizumab administration.

    5. Change From Baseline in Systolic Blood Pressure at Specified Timepoints [Baseline, Weeks 2, 3, and 5; Months 3, 6, 9, 12, and 18; and at Early Termination/Study Completion (up to 24 months)]

      Vital signs that were measured included body temperature, pulse and respiratory rates, systolic and diastolic blood pressure, and weight. On treatment days, measurement occurred prior to emicizumab administration.

    6. Change From Baseline in Diastolic Blood Pressure at Specified Timepoints [Baseline, Weeks 2, 3, and 5; Months 3, 6, 9, 12, and 18; and at Early Termination/Study Completion (up to 24 months)]

      Vital signs that were measured included body temperature, pulse and respiratory rates, systolic and diastolic blood pressure, and weight. On treatment days, measurement occurred prior to emicizumab administration.

    7. Change From Baseline in Pulse Rate at Specified Timepoints [Baseline, Weeks 2, 3, and 5; Months 3, 6, 9, 12, and 18; and at Early Termination/Study Completion (up to 24 months)]

      Vital signs that were measured included body temperature, pulse and respiratory rates, systolic and diastolic blood pressure, and weight. On treatment days, measurement occurred prior to emicizumab administration.

    8. Change From Baseline in Respiratory Rate at Specified Timepoints [Baseline, Weeks 2, 3, and 5; Months 3, 6, 9, 12, and 18; and at Early Termination/Study Completion (up to 24 months)]

      Vital signs that were measured included body temperature, pulse and respiratory rates, systolic and diastolic blood pressure, and weight. On treatment days, measurement occurred prior to emicizumab administration.

    9. Change From Baseline in Body Weight at Specified Timepoints [Baseline, Weeks 2, 3, and 5; Months 3, 6, 9, 12, and 18; and at Early Termination/Study Completion (up to 24 months)]

      Vital signs that were measured included body temperature, pulse and respiratory rates, systolic and diastolic blood pressure, and weight. On treatment days, measurement occurred prior to emicizumab administration.

    Secondary Outcome Measures

    1. Model-Based Annualized Bleed Rates (ABR) for Treated Bleeds, All Bleeds, Treated Joint Bleeds, Treated Target Joint Bleeds, and Treated Spontaneous Bleeds [From first dose of emicizumab until dose up-titration or withdrawal from treatment (median [min-max] efficacy period: 103.14 [1.1-108.3] weeks)]

      The number of bleeds over the efficacy period was analyzed as an ABR using a negative binomial regression model. Treated bleeds: bleeds followed by a hemophilia medication reported to be a "Treatment for bleed". All bleeds: included both treated and non-treated bleeds. Treated joint bleeds: treated bleeds where bleed type was "joint bleed" accompanied by at least one of following symptoms: "increased swelling or warmth of the skin over the joint", "increasing pain" or "decreased range of motion or difficulty using the joint compared with baseline". Treated target joint bleeds: treated joint bleeds that occurred in a target joint, defined as a joint in which ≥3 treated joint bleeds occurred during the 24 weeks prior to study entry. Treated spontaneous bleeds: treated bleeds with no other known contributing factor such as trauma or procedure/surgery. For all bleed types, bleeds due to surgery/procedure were excluded. Bleeds occurring after dose up-titration have been excluded.

    2. Mean Calculated Annualized Bleed Rates (ABR) for Treated Bleeds, All Bleeds, Treated Joint Bleeds, Treated Target Joint Bleeds, and Treated Spontaneous Bleeds [From first dose of emicizumab until dose up-titration or withdrawal from treatment (median [min-max] efficacy period: 103.14 [1.1-108.3] weeks)]

      The number of bleeds over the efficacy period was calculated as: ABR = (number of bleeds/number of days during the efficacy period) x 365.25. Treated bleeds: bleeds followed by a hemophilia medication reported to be a "Treatment for bleed". All bleeds: included both treated and non-treated bleeds. Treated joint bleeds: treated bleeds where bleed type was "joint bleed" accompanied by at least one of following symptoms: "increased swelling or warmth of the skin over the joint", "increasing pain" or "decreased range of motion or difficulty using the joint compared with baseline". Treated target joint bleeds: treated joint bleeds that occurred in a target joint, defined as a joint in which ≥3 treated joint bleeds occurred during the 24 weeks prior to study entry. Treated spontaneous bleeds: treated bleeds with no other known contributing factor such as trauma or procedure/surgery. For all types, bleeds due to surgery/procedure and bleeds occurring after dose up-titration were excluded.

    3. Median Calculated Annualized Bleed Rates (ABR) for Treated Bleeds, All Bleeds, Treated Joint Bleeds, Treated Target Joint Bleeds, and Treated Spontaneous Bleeds [From first dose of emicizumab until dose up-titration or withdrawal from treatment (median [min-max] efficacy period: 103.14 [1.1-108.3] weeks)]

      The number of bleeds over the efficacy period was calculated as: ABR = (number of bleeds/number of days during the efficacy period) x 365.25. Treated bleeds: bleeds followed by a hemophilia medication reported to be a "Treatment for bleed". All bleeds: included both treated and non-treated bleeds. Treated joint bleeds: treated bleeds where bleed type was "joint bleed" accompanied by at least one of following symptoms: "increased swelling or warmth of the skin over the joint", "increasing pain" or "decreased range of motion or difficulty using the joint compared with baseline". Treated target joint bleeds: treated joint bleeds that occurred in a target joint, defined as a joint in which ≥3 treated joint bleeds occurred during the 24 weeks prior to study entry. Treated spontaneous bleeds: treated bleeds with no other known contributing factor such as trauma or procedure/surgery. For all types, bleeds due to surgery/procedure and bleeds occurring after dose up-titration were excluded.

    4. Percentage of Participants by the Categorized Number of Bleeds for Treated Bleeds [From first dose of emicizumab until dose up-titration or withdrawal from treatment (median [min-max] efficacy period: 103.14 [1.1-108.3] weeks)]

      Treated bleeds: bleeds followed by a hemophilia medication reported to be a "Treatment for bleed". Bleeds due to surgery/procedure were excluded. The 72-hour rule was implemented: two bleeds of the same type and at the same anatomical location are counted as one bleed if the second bleed occurs within 72 hours from the last treatment for the first bleed. Included data before up-titration only, for participants whose dose was up-titrated.

    5. Percentage of Participants by the Categorized Number of Bleeds for All Bleeds [From first dose of emicizumab until dose up-titration or withdrawal from treatment (median [min-max] efficacy period: 103.14 [1.1-108.3] weeks)]

      All bleeds: included both treated and non-treated bleeds. Bleeds due to surgery/procedure were excluded. The 72-hour rule was implemented: two bleeds of the same type and at the same anatomical location are counted as one bleed if the second bleed occurs within 72 hours from the last treatment for the first bleed. Included data before up-titration only, for participants whose dose was up-titrated.

    6. Percentage of Participants by the Categorized Number of Bleeds for Treated Spontaneous Bleeds [From first dose of emicizumab until dose up-titration or withdrawal from treatment (median [min-max] efficacy period: 103.14 [1.1-108.3] weeks)]

      Treated spontaneous bleeds: treated bleeds with no other known contributing factor such as trauma or procedure/surgery. Bleeds due to surgery/procedure were excluded. The 72-hour rule was implemented: two bleeds of the same type and at the same anatomical location are counted as one bleed if the second bleed occurs within 72 hours from the last treatment for the first bleed. Included data before up-titration only, for participants whose dose was up-titrated.

    7. Percentage of Participants by the Categorized Calculated Annualized Bleed Rates (ABR) for Treated Bleeds [From first dose of emicizumab until dose up-titration or withdrawal from treatment (median [min-max] efficacy period: 103.14 [1.1-108.3] weeks)]

      The number of bleeds over the efficacy period was calculated as an ABR for each participant using the following formula: ABR = (number of bleeds/number of days during the efficacy period) x 365.25. Treated bleeds: bleeds followed by a hemophilia medication reported to be a "Treatment for bleed". Bleeds due to surgery/procedure were excluded. The 72-hour rule was implemented: two bleeds of the same type and at the same anatomical location are counted as one bleed if the second bleed occurs within 72 hours from the last treatment for the first bleed. Included data before up-titration only, for participants whose dose was up-titrated.

    8. Percentage of Participants by the Categorized Calculated Annualized Bleed Rates (ABR) for All Bleeds [From first dose of emicizumab until dose up-titration or withdrawal from treatment (median [min-max] efficacy period: 103.14 [1.1-108.3] weeks)]

      The number of bleeds over the efficacy period was calculated as an ABR for each participant using the following formula: ABR = (number of bleeds/number of days during the efficacy period) x 365.25. All bleeds: included both treated and non-treated bleeds. Bleeds due to surgery/procedure were excluded. The 72-hour rule was implemented: two bleeds of the same type and at the same anatomical location are counted as one bleed if the second bleed occurs within 72 hours from the last treatment for the first bleed. Included data before up-titration only, for participants whose dose was up-titrated.

    9. Percentage of Participants by the Categorized Calculated Annualized Bleed Rates (ABR) for Treated Spontaneous Bleeds [From first dose of emicizumab until dose up-titration or withdrawal from treatment (median [min-max] efficacy period: 103.14 [1.1-108.3] weeks)]

      The number of bleeds over the efficacy period was calculated as an ABR for each participant using the following formula: ABR = (number of bleeds/number of days during the efficacy period) x 365.25. Treated spontaneous bleeds: treated bleeds with no other known contributing factor such as trauma or procedure/surgery. Bleeds due to surgery/procedure were excluded. The 72-hour rule was implemented: two bleeds of the same type and at the same anatomical location are counted as one bleed if the second bleed occurs within 72 hours from the last treatment for the first bleed. Included data before up-titration only, for participants whose dose was up-titrated.

    10. Change From Baseline in the Hemophilia Adult Quality of Life (Haem-A-QoL) Questionnaire Total Score at Specified Timepoints, Adult Participants [Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)]

      The Haem-A-QoL questionnaire was designed for adult participants (greater than or equal to 18 years old) with hemophilia. It consists of 46 items comprising 10 domains: physical health, treatment, work and school, dealing with hemophilia, feelings, familly planning, future, partnerships and sexuality, sports and leisure, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always; although, for some items there is also a 'not applicable' option. The Total Score is based on the scores for each domain and ranges from 0 to 100, with lower scores reflective of better quality of life.

    11. Percentage of Participants With an Improvement From Baseline Greater Than the Responder Threshold for the Hemophilia Adult Quality of Life (Haem-A-QoL) Questionnaire Total Score at Specified Timepoints [At 3, 6, 12, and 18 months]

      The Haem-A-QoL questionnaire was designed for adult participants (greater than or equal to 18 years old) with hemophilia. It consists of 46 items comprising 10 domains: physical health, treatment, work and school, dealing with hemophilia, feelings, familly planning, future, partnerships and sexuality, sports and leisure, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always; although, for some items there is also a 'not applicable' option. The Total Score is based on the scores for each domain and ranges from 0 to 100, with lower scores reflective of better quality of life. An improvement larger than the responder threshold was defined as a decrease from baseline of at least 7 points in the Haem-A-QoL Total score.

    12. Change From Baseline in the Hemophilia Adult Quality of Life (Haem-A-QoL) Questionnaire Physical Health Domain Score at Specified Timepoints, Adult Participants [Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)]

      The Haem-A-QoL questionnaire was designed for adult participants (greater than or equal to 18 years old) with hemophilia. It consists of 46 items comprising 10 domains: physical health, treatment, work and school, dealing with hemophilia, feelings, familly planning, future, partnerships and sexuality, sports and leisure, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always; although, for some items there is also a 'not applicable' option. Scale scores for each domain range from 0 to 100, with lower scores reflective of better quality of life.

    13. Percentage of Participants With an Improvement From Baseline Greater Than the Responder Threshold for the Hemophilia Adult Quality of Life (Haem-A-QoL) Questionnaire Physical Health Domain Score at Specified Timepoints [At 3, 6, 12, and 18 months]

      The Haem-A-QoL questionnaire was designed for adult participants (greater than or equal to 18 years old) with hemophilia. It consists of 46 items comprising 10 domains: physical health, treatment, work and school, dealing with hemophilia, feelings, familly planning, future, partnerships and sexuality, sports and leisure, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always; although, for some items there is also a 'not applicable' option. Scale scores for each domain range from 0 to 100, with lower scores reflective of better quality of life. An improvement larger than the responder threshold was defined as a decrease from baseline of at least 10 points in the Haem-A-QoL Physical Health domain score.

    14. Change From Baseline in the Hemophilia Adult Quality of Life (Haem-A-QoL) Questionnaire Treatment Domain Score at Specified Timepoints, Adult Participants [Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)]

      The Haem-A-QoL questionnaire was designed for adult participants (greater than or equal to 18 years old) with hemophilia. It consists of 46 items comprising 10 domains: physical health, treatment, work and school, dealing with hemophilia, feelings, familly planning, future, partnerships and sexuality, sports and leisure, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always; although, for some items there is also a 'not applicable' option. Scale scores for each domain range from 0 to 100, with lower scores reflective of better quality of life.

    15. Change From Baseline in the Hemophilia Adult Quality of Life (Haem-A-QoL) Questionnaire Work and School Domain Score at Specified Timepoints, Adult Participants [Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)]

      The Haem-A-QoL questionnaire was designed for adult participants (greater than or equal to 18 years old) with hemophilia. It consists of 46 items comprising 10 domains: physical health, treatment, work and school, dealing with hemophilia, feelings, familly planning, future, partnerships and sexuality, sports and leisure, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always; although, for some items there is also a 'not applicable' option. Scale scores for each domain range from 0 to 100, with lower scores reflective of better quality of life.

    16. Change From Baseline in the Hemophilia Adult Quality of Life (Haem-A-QoL) Questionnaire Dealing With Hemophilia Domain Score at Specified Timepoints, Adult Participants [Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)]

      The Haem-A-QoL questionnaire was designed for adult participants (greater than or equal to 18 years old) with hemophilia. It consists of 46 items comprising 10 domains: physical health, treatment, work and school, dealing with hemophilia, feelings, familly planning, future, partnerships and sexuality, sports and leisure, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always; although, for some items there is also a 'not applicable' option. Scale scores for each domain range from 0 to 100, with lower scores reflective of better quality of life.

    17. Change From Baseline in the Hemophilia Adult Quality of Life (Haem-A-QoL) Questionnaire Feelings Domain Score at Specified Timepoints, Adult Participants [Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)]

      The Haem-A-QoL questionnaire was designed for adult participants (greater than or equal to 18 years old) with hemophilia. It consists of 46 items comprising 10 domains: physical health, treatment, work and school, dealing with hemophilia, feelings, familly planning, future, partnerships and sexuality, sports and leisure, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always; although, for some items there is also a 'not applicable' option. Scale scores for each domain range from 0 to 100, with lower scores reflective of better quality of life.

    18. Change From Baseline in the Hemophilia Adult Quality of Life (Haem-A-QoL) Questionnaire Family Planning Domain Score at Specified Timepoints, Adult Participants [Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)]

      The Haem-A-QoL questionnaire was designed for adult participants (greater than or equal to 18 years old) with hemophilia. It consists of 46 items comprising 10 domains: physical health, treatment, work and school, dealing with hemophilia, feelings, familly planning, future, partnerships and sexuality, sports and leisure, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always; although, for some items there is also a 'not applicable' option. Scale scores for each domain range from 0 to 100, with lower scores reflective of better quality of life.

    19. Change From Baseline in the Hemophilia Adult Quality of Life (Haem-A-QoL) Questionnaire Future Domain Score at Specified Timepoints, Adult Participants [Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)]

      The Haem-A-QoL questionnaire was designed for adult participants (greater than or equal to 18 years old) with hemophilia. It consists of 46 items comprising 10 domains: physical health, treatment, work and school, dealing with hemophilia, feelings, familly planning, future, partnerships and sexuality, sports and leisure, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always; although, for some items there is also a 'not applicable' option. Scale scores for each domain range from 0 to 100, with lower scores reflective of better quality of life.

    20. Change From Baseline in the Hemophilia Adult Quality of Life (Haem-A-QoL) Questionnaire Partnership and Sexuality Domain Score at Specified Timepoints, Adult Participants [Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)]

      The Haem-A-QoL questionnaire was designed for adult participants (greater than or equal to 18 years old) with hemophilia. It consists of 46 items comprising 10 domains: physical health, treatment, work and school, dealing with hemophilia, feelings, familly planning, future, partnerships and sexuality, sports and leisure, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always; although, for some items there is also a 'not applicable' option. Scale scores for each domain range from 0 to 100, with lower scores reflective of better quality of life.

    21. Change From Baseline in the Hemophilia Adult Quality of Life (Haem-A-QoL) Questionnaire Sports and Leisure Domain Score at Specified Timepoints, Adult Participants [Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)]

      The Haem-A-QoL questionnaire was designed for adult participants (greater than or equal to 18 years old) with hemophilia. It consists of 46 items comprising 10 domains: physical health, treatment, work and school, dealing with hemophilia, feelings, familly planning, future, partnerships and sexuality, sports and leisure, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always; although, for some items there is also a 'not applicable' option. Scale scores for each domain range from 0 to 100, with lower scores reflective of better quality of life.

    22. Change From Baseline in the Hemophilia Adult Quality of Life (Haem-A-QoL) Questionnaire View of Yourself Domain Score at Specified Timepoints, Adult Participants [Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)]

      The Haem-A-QoL questionnaire was designed for adult participants (greater than or equal to 18 years old) with hemophilia. It consists of 46 items comprising 10 domains: physical health, treatment, work and school, dealing with hemophilia, feelings, familly planning, future, partnerships and sexuality, sports and leisure, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always; although, for some items there is also a 'not applicable' option. Scale scores for each domain range from 0 to 100, with lower scores reflective of better quality of life.

    23. Change From Baseline in the Hemophilia Quality of Life Short Form (Haemo-QoL-SF) Questionnaire Total Score at Specified Timepoints, Adolescent Participants [Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)]

      The Haemo-QoL-SF was designed as a series of age-related questionnaires to measure health-related quality of life in children and adolescents (12-17 year olds) with hemophilia. This version contains 35 items and covers nine domains considered relevant for children's health-related quality of life: physical health, treatment, sports and school, dealing with hemophilia, feelings, family, friends, other people, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always. The Total Score is derived from the scores for all domains and scale scores range from 0 to 100, with a lower score reflective of better health-related quality of life.

    24. Percentage of Participants With an Improvement From Baseline Greater Than the Responder Threshold for the Hemophilia Quality of Life Short Form (Haemo-QoL-SF) Questionnaire Total Score at Specified Timepoints [At 3, 6, 12, and 18 months]

      The Haemo-QoL-SF was designed as a series of age-related questionnaires to measure health-related quality of life in children and adolescents (12-17 year olds) with hemophilia. This version contains 35 items and covers nine domains considered relevant for children's health-related quality of life: physical health, treatment, sports and school, dealing with hemophilia, feelings, family, friends, other people, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always. The Total Score is derived from the scores for all domains and scale scores range from 0 to 100, with a lower score reflective of better health-related quality of life. An improvement larger than the responder threshold was defined as a decrease of at least 5 points in the Haemo-QoL-SF Total score.

    25. Change From Baseline in the Hemophilia Quality of Life Short Form (Haemo-QoL-SF) Questionnaire Physical Health Domain Score at Specified Timepoints, Adolescent Participants [Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)]

      The Haemo-QoL-SF was designed as a series of age-related questionnaires to measure health-related quality of life in children and adolescents (12-17 year olds) with hemophilia. This version contains 35 items and covers nine domains considered relevant for children's health-related quality of life: physical health, treatment, sports and school, dealing with hemophilia, feelings, family, friends, other people, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always. Scale scores range from 0 to 100, with a lower score reflective of better health-related quality of life.

    26. Percentage of Participants With an Improvement From Baseline Greater Than the Responder Threshold for the Hemophilia Quality of Life Short Form (Haemo-QoL-SF) Questionnaire Physical Health Domain Score at Specified Timepoints [At 3, 6, 12, and 18 months]

      The Haemo-QoL-SF was designed as a series of age-related questionnaires to measure health-related quality of life in children and adolescents (12-17 year olds) with hemophilia. This version contains 35 items and covers nine domains considered relevant for children's health-related quality of life: physical health, treatment, sports and school, dealing with hemophilia, feelings, family, friends, other people, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always. Scale scores range from 0 to 100, with a lower score reflective of better health-related quality of life. An improvement larger than the responder threshold was defined as a decrease of at least 10 points in the Haemo-QoL-SF Physical Health domain score.

    27. Change From Baseline in the Hemophilia Quality of Life Short Form (Haemo-QoL-SF) Questionnaire Treatment Domain Score at Specified Timepoints, Adolescent Participants [Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)]

      The Haemo-QoL-SF was designed as a series of age-related questionnaires to measure health-related quality of life in children and adolescents (12-17 year olds) with hemophilia. This version contains 35 items and covers nine domains considered relevant for children's health-related quality of life: physical health, treatment, sports and school, dealing with hemophilia, feelings, family, friends, other people, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always. Scale scores range from 0 to 100, with a lower score reflective of better health-related quality of life.

    28. Change From Baseline in the Hemophilia Quality of Life Short Form (Haemo-QoL-SF) Questionnaire Sports and School Domain Score at Specified Timepoints, Adolescent Participants [Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)]

      The Haemo-QoL-SF was designed as a series of age-related questionnaires to measure health-related quality of life in children and adolescents (12-17 year olds) with hemophilia. This version contains 35 items and covers nine domains considered relevant for children's health-related quality of life: physical health, treatment, sports and school, dealing with hemophilia, feelings, family, friends, other people, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always. Scale scores range from 0 to 100, with a lower score reflective of better health-related quality of life.

    29. Change From Baseline in the Hemophilia Quality of Life Short Form (Haemo-QoL-SF) Questionnaire Dealing With Hemophilia Domain Score at Specified Timepoints, Adolescent Participants [Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)]

      The Haemo-QoL-SF was designed as a series of age-related questionnaires to measure health-related quality of life in children and adolescents (12-17 year olds) with hemophilia. This version contains 35 items and covers nine domains considered relevant for children's health-related quality of life: physical health, treatment, sports and school, dealing with hemophilia, feelings, family, friends, other people, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always. Scale scores range from 0 to 100, with a lower score reflective of better health-related quality of life.

    30. Change From Baseline in the Hemophilia Quality of Life Short Form (Haemo-QoL-SF) Questionnaire Feelings Domain Score at Specified Timepoints, Adolescent Participants [Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)]

      The Haemo-QoL-SF was designed as a series of age-related questionnaires to measure health-related quality of life in children and adolescents (12-17 year olds) with hemophilia. This version contains 35 items and covers nine domains considered relevant for children's health-related quality of life: physical health, treatment, sports and school, dealing with hemophilia, feelings, family, friends, other people, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always. Scale scores range from 0 to 100, with a lower score reflective of better health-related quality of life.

    31. Change From Baseline in the Hemophilia Quality of Life Short Form (Haemo-QoL-SF) Questionnaire Family Domain Score at Specified Timepoints, Adolescent Participants [Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)]

      The Haemo-QoL-SF was designed as a series of age-related questionnaires to measure health-related quality of life in children and adolescents (12-17 year olds) with hemophilia. This version contains 35 items and covers nine domains considered relevant for children's health-related quality of life: physical health, treatment, sports and school, dealing with hemophilia, feelings, family, friends, other people, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always. Scale scores range from 0 to 100, with a lower score reflective of better health-related quality of life.

    32. Change From Baseline in the Hemophilia Quality of Life Short Form (Haemo-QoL-SF) Questionnaire Friends Domain Score at Specified Timepoints, Adolescent Participants [Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)]

      The Haemo-QoL-SF was designed as a series of age-related questionnaires to measure health-related quality of life in children and adolescents (12-17 year olds) with hemophilia. This version contains 35 items and covers nine domains considered relevant for children's health-related quality of life: physical health, treatment, sports and school, dealing with hemophilia, feelings, family, friends, other people, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always. Scale scores range from 0 to 100, with a lower score reflective of better health-related quality of life.

    33. Change From Baseline in the Hemophilia Quality of Life Short Form (Haemo-QoL-SF) Questionnaire Other People Domain Score at Specified Timepoints, Adolescent Participants [Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)]

      The Haemo-QoL-SF was designed as a series of age-related questionnaires to measure health-related quality of life in children and adolescents (12-17 year olds) with hemophilia. This version contains 35 items and covers nine domains considered relevant for children's health-related quality of life: physical health, treatment, sports and school, dealing with hemophilia, feelings, family, friends, other people, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always. Scale scores range from 0 to 100, with a lower score reflective of better health-related quality of life.

    34. Change From Baseline in the Hemophilia Quality of Life Short Form (Haemo-QoL-SF) Questionnaire View of Yourself Domain Score at Specified Timepoints, Adolescent Participants [Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)]

      The Haemo-QoL-SF was designed as a series of age-related questionnaires to measure health-related quality of life in children and adolescents (12-17 year olds) with hemophilia. This version contains 35 items and covers nine domains considered relevant for children's health-related quality of life: physical health, treatment, sports and school, dealing with hemophilia, feelings, family, friends, other people, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always. Scale scores range from 0 to 100, with a lower score reflective of better health-related quality of life.

    35. Change From Baseline in the EuroQoL Five-Dimension-Five Levels Questionnaire (EQ-5D-5L) Index Utility Score at Specified Timepoints [Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)]

      The EQ-5D-5L is a generic, self-reported, preference-based health utility measure that consists of six questions and is used to assess health status and inform pharmacoeconomic evaluations. The index utility score is based on the participant's assessment of their health on five scales: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. It ranges from -0.224 to 1, with 0 corresponding to death and 1 corresponding to full health; negative values correspond to health states worse than death. Higher scores indicate better quality of life.

    36. Change From Baseline in the EuroQoL Five-Dimension-Five Levels Questionnaire (EQ-5D-5L) Quality-of-Life Visual Analogue Scale (VAS) Score at Specified Timepoints [Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)]

      The EQ-5D-5L is a generic, self-reported, preference-based health utility measure that consists of six questions and is used to assess health status and inform pharmacoeconomic evaluations. The visual analogue scale (VAS) ranges from 0 to 100 points, on which the participant self-assesses their current health status; 0 being the worst health you can imagine and 100 being the best health you can imagine. Higher scores are reflective of better health.

    37. Percentage of Participants Who Preferred the New Emicizumab Treatment or the Old Hemophilia Treatment, or Without Treatment Preference, as Assessed by the EmiPref Questionnaire [Month 3]

      The EmiPref questionnaire asked participants to specify the treatment they would prefer to continue to receive after receiving treatment with their previous episodic or prophylactic regimen and subcutaneous (SC) emicizumab, or if they had no preference. The 95% confidence intervals were calculated for one sample binomial using the Pearson-Clopper method.

    38. Number and Percentage of Participants With Anti-Drug Antibodies (ADAs) Against Emicizumab at Anytime Post-Baseline [Baseline (Week 1), Week 5, and at 3, 6, 9, 12, and 18 months, and at early termination/study completion (up to 24 months)]

      'Total ADA Negative' is the sum of all subjects who tested negative for ADA in the 2 following categories: 'ADA Negative', those who are pre-dose ADA negative or are missing pre-dose ADA data and who have all negative post-dose ADA results; and 'ADA Negative (Treatment Unaffected)', a subset who are pre-dose ADA positive but do not have a ≥4-fold increase in post-dose ADA levels compared to baseline measurement. 'Total ADA Positive' is the sum of all subjects who tested positive for ADA in the 2 following categories: 'ADA Positive (Treatment Boosted)', those who are pre-dose ADA positive and have a ≥4-fold increase in post-dose ADA levels compared to baseline measurement; and 'ADA Positive (Treatment Induced)', those who are pre-dose ADA negative or missing data and who have at least one post-dose ADA positive sample.

    39. Mean Trough Plasma Concentrations of Emicizumab at Specified Timepoints [Pre-dose at Weeks 2, 3, and 5, Months 3, 6, 12, and 18, and at treatment discontinuation (up to 2 years)]

      The trough concentration is a measure of the plasma concentration of a study drug at the end of of the dosage interval.

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    12 Years and Older
    Sexes Eligible for Study:
    All
    Accepts Healthy Volunteers:
    No
    Inclusion Criteria:
    • As per investigator's judgement, a willingness and ability to comply with scheduled visits, treatment plans, laboratory tests, and other study procedures, including the patient-reported outcome (PRO) questionnaires and bleed diaries through the use of an electronic device or paper

    • Aged 12 years or older at the time of informed consent

    • Diagnosis of congenital hemophilia A with persistent inhibitors against FVIII

    • Documented treatment with bypassing agents or FVIII concentrates in the last 6 months (on-demand or prophylaxis). Prophylaxis needs to be discontinued the latest by a day before starting emicizumab

    • Adequate hematologic, hepatic, and renal function

    • For women of childbearing potential: agreement to remain abstinent (refrain from heterosexual intercourse) or use a highly effective contraceptive method with a failure rate of <1% per year during the treatment period and for at least five elimination half-lives (24 weeks) after the last dose of emicizumab

    Exclusion Criteria:
    • Inherited or acquired bleeding disorder other than hemophilia A

    • Ongoing (or plan to receive during the study) immune tolerance induction (ITI) therapy (prophylaxis regimens with FVIII and/or bypassing agents must be discontinued prior to enrollment). Patients receiving ITI therapy will be eligible following the completion of a 72-hour washout period prior to the first emicizumab administration

    • History of illicit drug or alcohol abuse within 12 months prior to screening, as per the investigator's judgment

    • High risk for thrombotic microangiopathy (TMA) (e.g., have a previous medical or family history of TMA), as per the investigator's judgment

    • Previous (in the past 12 months) or current treatment for thromboembolic disease (with the exception of previous catheter-associated thrombosis for which antithrombotic treatment is not currently ongoing) or current signs of thromboembolic disease

    • Other conditions (e.g., certain autoimmune diseases) that may increase the risk of bleeding or thrombosis

    • History of clinically significant hypersensitivity reaction associated with monoclonal antibody therapies or components of the emicizumab injection

    • Known human immunodeficiency virus (HIV) infection with CD4 count <200 cells/μL within 6 months prior to screening

    • Use of systemic immunomodulators (e.g., interferon or rituximab) at enrollment or planned use during the study, with the exception of antiretroviral therapy

    • Concurrent disease, treatment, or abnormality in clinical laboratory tests that could interfere with the conduct of the study or that would, in the opinion of the investigator or Sponsor, preclude the patient's safe participation in and completion of the study or interpretation of the study results

    • Receipt of: Emicizumab in a prior investigational study; An investigational drug to treat or reduce the risk of hemophilic bleeds within five half-lives of last drug administration; A non-hemophilia-related investigational drug within last 30 days or five half-lives, whichever is shorter; or, Any concurrent investigational drug.

    • Pregnancy or lactation, or intent to become pregnant during the study

    • Positive serum pregnancy test result within 7 days prior to initiation of emicizumab (females only)

    Contacts and Locations

    Locations

    Site City State Country Postal Code
    1 Royal Prince Alfred Hospital; Haematology Camperdown New South Wales Australia 2050
    2 Alfred Hospital Melbourne Victoria Australia 3004
    3 Fiona Stanley Hospital Murdoch Western Australia Australia 6150
    4 UZ Leuven Gasthuisberg Leuven Belgium 3000
    5 Centro de Hematologia E Hemoterapia Do Parana - Hemepar Curitiba PR Brazil 80045-145
    6 Instituto Estadual de Hema Rio de Janeiro RJ Brazil 20211-030
    7 Hospital das Clinicas - UNICAMP Campinas SP Brazil 13083-888
    8 Faculdade de Medicina de Ribeirão Preto - Universidade de Sao Paulo Ribeirao Preto SP Brazil 14051-140
    9 Kaye Edmonton Clinic Edmonton Alberta Canada T6G 2V2
    10 CancerCare Manitoba; Neuro-Oncology Winnipeg Manitoba Canada R2H 2A6
    11 McMaster University Health Sciences Center Hamilton Ontario Canada L8N 3Z5
    12 St. Michael's Hospital Toronto Ontario Canada M5B 1W8
    13 Centro de Atención e Investigación Médica CAIMED S.A.S Localidad Puente Aranda Colombia 111611
    14 Hospital Pablo Tobon Uribe Medellin Colombia 050034
    15 Helsingin yliopistollinen keskussairaala, Meilahden sairaala Helsinki Finland 00290
    16 Vivantes Klinikum im Friedrichshain - Landsberger Allee, Angiologie und Hämostaseologie Berlin Germany 10249
    17 Universitätsklinikum Bonn; Institut für Experimentelle Hämatologie und Transfusionsmedizin Bonn Germany 53127
    18 Hämophiliezentrum Med. Klinik III/Institut für Transfusionsmedizin; Johann Wolfgang Goethe-Univers. Frankfurt/M. Germany 60590
    19 Universitätsklinikum Leipzig, Innere Medizin, Neurologie, Dermatologie; Zentrum für Hämostaseologie Leipzig Germany 04103
    20 Hämophilie-Zentrum Rhein Main GmbH Mörfelden-Walldorf Germany 64546
    21 Klinikum der Universität München, Campus Innenstadt; Hämostaseologische Ambulanz/Hämophiliezentrum München Germany 80336
    22 Oncomedica Guatemala Guatemala 01010
    23 Magyar Honvédség Egészségügyi Központ; Országos Haemophilia Központ Budapest Hungary 1134
    24 Országos Vérellátó Szolgálat - Győri Regionális Vérellátó Központ Győr Hungary 9023
    25 University of Pecs, I st Dept of Internal Medicine Pecs Hungary 7624
    26 St. John's Medical College & Hospital; Department of Medicine Bengaluru Karnataka India 560034
    27 King Edward Memorial Hospital and Seth G.S. Medical College; Department of Hematology Mumbai Maharashtra India 400012
    28 Fortis Hospitals Limited Mumbai Maharashtra India 400078
    29 Sahyadri Speciality Hospital; Hematology & Bone Marrow Unit Pune Maharashtra India 411004
    30 Christian Medical College & Hospital; Department of Haematology Vellore Maharashtra India 632004
    31 Nil Ratan Sircar Medical College and Hospital; Department of Hematology Kolkata WEST Bengal India 700014
    32 Grant Medical Foundation, Ruby Hall Clinic Pune India 411001
    33 Sheba Medical Center - National Hemophilia Center Tel Hashomer Israel 5262100
    34 AOU Federico II; Medicina Clinica Chirurgia Centro Emocoaugulopatie e Emofilia Napoli Campania Italy 80131
    35 AOU Policlinico S. Orsola Malpighi; U.O. Angiologia e Malattie della Coagulazione Marino Golinelli Bologna Emilia-Romagna Italy 40138
    36 AOU di Parma; Dip Emergenza-Urgenza Centro Riferimento Regionale per l'emofilia Parma Emilia-Romagna Italy 43126
    37 Universita' Degli Studi La Sapienza-Ist.Di Ematologia; Dip Biot Cel e Ematol Roma Lazio Italy 00161
    38 IRCCS Ca' Granda Ospedale Maggiore Policlinico; Centro Emofilia e Trombosi "Angelo Bianchi e Bonomi" Milano Lombardia Italy 20122
    39 AO Città Salute e Scienza D-Osp S. G. Battista Molinette; SSCVD Malattie Tromboti e Emorragiche Torino Piemonte Italy 10126
    40 Azienda Uni Ria Policlinico P. Giaccone ; Divisione Di Ematologia E Trapianto Palermo Sicilia Italy 90127
    41 AOU Careggi; SOD Malattie Emorragiche Firenze Toscana Italy 50134
    42 Azienda Ospedaliera di Padova; Centro Emofilia Padova Veneto Italy 35128
    43 Hospital General de México Distrito Federal Mexico CITY (federal District) Mexico 06726
    44 CENTRO MEDICO NACIONAL SIGLO XXI; Banco de Sangre Mexico City Mexico CITY (federal District) Mexico 06720
    45 Hospital de Especialidades Centro Medico Nacional La Raza; Haematology Mexico City Mexico 02990
    46 Erasmus MC / location Sophia Kinderziekenhuis Rotterdam Netherlands 3015 GJ
    47 Universitair Medisch Centrum Utrecht Utrecht Netherlands 3584 CX
    48 Complejo Hospitalario Arnulfo Arias Madrid; Servicio de Hematología Panama City Panama 0824
    49 Instytut Hematologii i Transfuzjologii; Klinika Zaburzeń Hemostazy i Chorób Wewnętrznych Warsaw Poland 02-776
    50 Hospital Geral; Servico de Imuno-Hemoterapia Coimbra Portugal 3041-853
    51 Hospital de Santa Maria; Servico de Imuno-Hemoterapia; Servico de Imuno-Hemoterapia Lisboa Portugal 1649-035
    52 Hospital de Sao Joao; Servico de Imuno-Hemoterapia; Servico de Imuno-Hemoterapia Porto Portugal 4200-319
    53 Louis Turcanu Emergency Clinical Hospital for Children; First Pediatric Clinic Timisoara Romania 300011
    54 Regional State Budgetary Institution of Healthcare "Regional Cinilcal Hospital"; Pulmonology Barnaul Altaj Russian Federation 656024
    55 Morozov Children's Municipal Clinical Hospital. Haematology department Moscow Russian Federation 119049
    56 "Hematological Scientific Center Moscow Russian Federation 125167
    57 City Outpatient Clinic #37, City Hemophilia Treatment Center Saint Petersburg Russian Federation 191186
    58 Samara State Medical University Samara Russian Federation 443099
    59 King Faisal Specialist Hospital & Research Centre; Oncology Riyadh Saudi Arabia 11211
    60 Hospital Universitario Vall de Hebron; Unidad de Hemofília Barcelona Spain 08035
    61 Hospital Universitario la Paz; Servicio de Hematologia Madrid Spain 28046
    62 Hospital Regional Universitario Carlos Haya; Servicio de Hematologia Malaga Spain 29010
    63 Hospital Universitario Virgen del Rocio; Servicio de Hematologia Sevilla Spain 41013
    64 Hospital Universitario la Fe; Servicio de Hematologia Valencia Spain 46026
    65 Sahlgrenska Universitetssjukhuset; Koagulationscentrum Göteborg Sweden 413 45
    66 Karolinska Universitetssjukhuset; Koagulationsmottagningen Solna Sweden 171 64
    67 Inselspital Bern; Hämatologie und Hämatologisches Zentrallabor Bern Switzerland 3010
    68 University Hospitals Birmingham NHS Foundation Trust Birmingham United Kingdom B15 2TH
    69 The Royal London Hospital London United Kingdom E1 2ES
    70 Royal Free Hospital London United Kingdom NW3 2QS
    71 Royal Victoria Infirmary; Non-Malignant Haematology Research Newcastle upon Tyne United Kingdom NE1 4LP
    72 Royal Hallamshire Hospital Sheffield Teaching Hospitals NHS Foundation Trust Sheffield United Kingdom S10 2JF

    Sponsors and Collaborators

    • Hoffmann-La Roche

    Investigators

    • Study Director: Clinical Trials, Hoffmann-La Roche

    Study Documents (Full-Text)

    More Information

    Publications

    None provided.
    Responsible Party:
    Hoffmann-La Roche
    ClinicalTrials.gov Identifier:
    NCT03191799
    Other Study ID Numbers:
    • MO39129
    • 2016-004366-25
    First Posted:
    Jun 19, 2017
    Last Update Posted:
    Jun 11, 2021
    Last Verified:
    May 1, 2021
    Studies a U.S. FDA-regulated Drug Product:
    No
    Studies a U.S. FDA-regulated Device Product:
    No
    Additional relevant MeSH terms:

    Study Results

    Participant Flow

    Recruitment Details
    Pre-assignment Detail A total of 195 patients were enrolled in the clinical trial.
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Period Title: Overall Study
    STARTED 195
    Received at Least One Dose of Emicizumab 193
    Dose Up-Titrated to 3 mg/kg QW 2
    COMPLETED 186
    NOT COMPLETED 9

    Baseline Characteristics

    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Overall Participants 195
    Age (Years) [Mean (Standard Deviation) ]
    Mean (Standard Deviation) [Years]
    32.2
    (16.6)
    Age, Customized (Count of Participants)
    ≥12 to <18 Years Old
    40
    20.5%
    ≥18 to <65 Years Old
    146
    74.9%
    ≥65 Years Old
    9
    4.6%
    Sex: Female, Male (Count of Participants)
    Female
    0
    0%
    Male
    195
    100%
    Ethnicity (NIH/OMB) (Count of Participants)
    Hispanic or Latino
    41
    21%
    Not Hispanic or Latino
    143
    73.3%
    Unknown or Not Reported
    11
    5.6%
    Race (NIH/OMB) (Count of Participants)
    American Indian or Alaska Native
    19
    9.7%
    Asian
    38
    19.5%
    Native Hawaiian or Other Pacific Islander
    1
    0.5%
    Black or African American
    7
    3.6%
    White
    121
    62.1%
    More than one race
    0
    0%
    Unknown or Not Reported
    9
    4.6%

    Outcome Measures

    1. Primary Outcome
    Title Overall Summary of the Number of Participants With Adverse Events, Severity Assessed According to the World Health Organization (WHO) Toxicity Grading Scale
    Description Investigators sought information on adverse events (AEs) at each contact with participants. The WHO toxicity grading scale was used for assessing AE severity (i.e., intensity of an AE); any AEs not specifically listed in the WHO toxicity grading scale were assessed for severity according to the following grades: Grade 1 is mild; Grade 2 is moderate, Grade 3 is severe; Grade 4 is life-threatening; and Grade 5 is death. Regardless of severity, some AEs may have also met seriousness criteria. The terms "severe" and "serious" are not synonymous; severity and seriousness were independently assessed for each AE. aPCC = activated prothrombin complex concentrate
    Time Frame From Baseline until study completion (up to 2 years)

    Outcome Measure Data

    Analysis Population Description
    Safety Population: all participants who received at least one dose of emicizumab
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 193
    Any Adverse Event (AE)
    163
    83.6%
    Fatal AE
    2
    1%
    Serious AE
    31
    15.9%
    AE Leading to Withdrawal from Treatment
    1
    0.5%
    AE Leading to Dose Modification/Interruption
    4
    2.1%
    AE Leading to Study Discontinuation
    1
    0.5%
    Grade 3-5 AE
    39
    20%
    Related AE
    35
    17.9%
    Local Injection Site Reaction
    22
    11.3%
    Systemic Hypersensitivity/Anaphylac(tic/toid) Reaction
    0
    0%
    Thromboembolic Event (TE)
    2
    1%
    TE Related to aPCC and Emicizumab
    0
    0%
    Thrombotic Microangiopathy (TMA)
    0
    0%
    TMA Related to aPCC and Emicizumab
    0
    0%
    Cases of Potential Drug-Induced Liver Injury
    0
    0%
    Suspected Transmission of Infectious Agent by the Study Drug
    0
    0%
    2. Primary Outcome
    Title Adverse Events (AEs) Rates Per 100 Patient-Years for All-Grade AEs, Serious AEs, and Grade ≥3 AEs
    Description Investigators sought information on adverse events (AEs) at each contact with participants. The WHO toxicity grading scale was used for assessing AE severity (i.e., intensity of an AE); any AEs not specifically listed in the WHO toxicity grading scale were assessed for severity according to the following grades: Grade 1 is mild; Grade 2 is moderate, Grade 3 is severe; Grade 4 is life-threatening; and Grade 5 is death. Regardless of severity, some AEs may have also met seriousness criteria. The terms "severe" and "serious" are not synonymous; severity and seriousness were independently assessed for each AE. The AE rate per 100 patient-years was computed as follows: AE Rate = (Number of AEs observed/ Total patient-years at risk)*100. Total patient-years at risk is the sum over all patients of the time intervals (in years) between start of study therapy (study day 1) and the end of follow up.
    Time Frame From Baseline until study completion (up to 2 years)

    Outcome Measure Data

    Analysis Population Description
    Safety Population: all participants who received at least one dose of emicizumab
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 193
    Measure Adverse Events (AEs) 800
    All-Grade AEs
    211.92
    Serious AEs
    13.25
    Grade ≥3 AEs
    17.22
    3. Primary Outcome
    Title Number of Participants by Hematology and Biochemistry Laboratory Parameter Test Results as Shifts From the WHO Toxicity Grade at Baseline to the Worst WHO Toxicity Grade Post-Baseline
    Description The World Health Organization (WHO) toxicity grading scale was used for determining the severity of laboratory abnormalities (i.e., test results outside of the reference range) for hematology and biochemistry parameters; Grade 0 is normal and Grades 1 to 4 represent worsening levels of the parameter outside of the normal range in the specified direction of the abnormality (high and low are above and below the range, respectively). Not every laboratory abnormality qualified as an adverse event (AE). A laboratory test result was reported as an AE if it met any of the following criteria: was accompanied by clinical symptoms; resulted in a change in study treatment; resulted in a medical intervention or a change in concomitant therapy; or was clinically significant in the investigator's judgment. Baseline was defined as the last available assessment prior to first receipt of study drug. Abs = absolute count; SGOT/AST = aspartate aminotransferase; SGPT/ALT = alanine aminotransferase
    Time Frame Baseline, Weeks 2, 3, and 5; Months 3, 6, 9, 12, and 18; and at Early Termination/Study Completion (up to 24 months)

    Outcome Measure Data

    Analysis Population Description
    Safety Population: all participants who received at least one dose of emicizumab
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 193
    Hemoglobin, Low - Grade 0 to 0
    173
    88.7%
    Hemoglobin, Low - Grade 0 to 1
    8
    4.1%
    Hemoglobin, Low - Grade 0 to 2
    4
    2.1%
    Hemoglobin, Low - Grade 0 to 4
    1
    0.5%
    Hemoglobin, Low - Grade 1 to 0
    1
    0.5%
    Hemoglobin, Low - Grade 1 to 1
    2
    1%
    Hemoglobin, Low - Grade 1 to 2
    1
    0.5%
    Hemoglobin, Low - Grade 1 to 3
    1
    0.5%
    Hemoglobin, Low - Grade 2 to 1
    1
    0.5%
    Hemoglobin, Low - Grade 2 to 3
    1
    0.5%
    Neutrophils, Total (Abs), Low - Grade 0 to 0
    173
    88.7%
    Neutrophils, Total (Abs), Low - Grade 0 to 1
    13
    6.7%
    Neutrophils, Total (Abs), Low - Grade 0 to 2
    1
    0.5%
    Neutrophils, Total (Abs), Low - Grade 0 to 3
    2
    1%
    Neutrophils, Total (Abs), Low - Grade 0 to 4
    2
    1%
    Neutrophils, Total (Abs), Low - Grade 1 to 1
    2
    1%
    Platelets, Low - Grade 0 to 0
    190
    97.4%
    Platelets, Low - Grade 0 to 1
    2
    1%
    Platelets, Low - Grade 1 to 0
    1
    0.5%
    Alkaline Phosphatase, High - Grade 0 to 0
    187
    95.9%
    Alkaline Phosphatase, High - Grade 0 to 1
    3
    1.5%
    Alkaline Phosphatase, High - Grade 0 to 2
    1
    0.5%
    Alkaline Phosphatase, High - Grade 1 to 1
    2
    1%
    Bilirubin, High - Grade 0 to 0
    169
    86.7%
    Bilirubin, High - Grade 0 to 1
    14
    7.2%
    Bilirubin, High - Grade 1 to 0
    3
    1.5%
    Bilirubin, High - Grade 1 to 1
    2
    1%
    Bilirubin, High - Grade 1 to 2
    3
    1.5%
    Bilirubin, High - Grade 2 to 2
    2
    1%
    Blood Urea Nitrogen, High - Grade 0 to 0
    187
    95.9%
    Blood Urea Nitrogen, High - Grade 0 to 1
    5
    2.6%
    Blood Urea Nitrogen, High - Grade 1 to 1
    1
    0.5%
    Calcium (Corrected), High - Grade 0 to 0
    192
    98.5%
    Calcium (Corrected), High - Grade 1 to 2
    1
    0.5%
    Calcium (Corrected), Low - Grade 0 to 0
    173
    88.7%
    Calcium (Corrected), Low - Grade 0 to 1
    15
    7.7%
    Calcium (Corrected), Low - Grade 0 to 2
    1
    0.5%
    Calcium (Corrected), Low - Grade 1 to 0
    3
    1.5%
    Calcium (Corrected), Low - Grade 1 to 1
    1
    0.5%
    Creatinine, High - Grade 0 to 0
    185
    94.9%
    Creatinine, High - Grade 0 to 1
    5
    2.6%
    Creatinine, High - Grade 0 to 2
    1
    0.5%
    Creatinine, High - Grade 1 to 1
    1
    0.5%
    Creatinine, High - Grade 1 to 2
    1
    0.5%
    Glucose, High - Grade 0 to 0
    148
    75.9%
    Glucose, High - Grade 0 to 1
    28
    14.4%
    Glucose, High - Grade 0 to 2
    6
    3.1%
    Glucose, High - Grade 1 to 1
    2
    1%
    Glucose, High - Grade 1 to 2
    3
    1.5%
    Glucose, High - Grade 2 to 2
    1
    0.5%
    Glucose, High - Grade 2 to 3
    1
    0.5%
    Glucose, High - Grade 3 to 2
    1
    0.5%
    Glucose, High - Grade 3 to 3
    2
    1%
    Glucose, High - Grade 4 to 3
    1
    0.5%
    Glucose, Low - Grade 0 to 0
    180
    92.3%
    Glucose, Low - Grade 0 to 1
    7
    3.6%
    Glucose, Low - Grade 0 to 2
    4
    2.1%
    Glucose, Low - Grade 1 to 0
    2
    1%
    Magnesium, Low - Grade 0 to 0
    188
    96.4%
    Magnesium, Low - Grade 0 to 1
    4
    2.1%
    Magnesium, Low - Grade 1 to 1
    1
    0.5%
    Phosphorus, Low - Grade 0 to 0
    160
    82.1%
    Phosphorus, Low - Grade 0 to 1
    21
    10.8%
    Phosphorus, Low - Grade 1 to 0
    2
    1%
    Phosphorus, Low - Grade 1 to 1
    9
    4.6%
    Phosphorus, Low - Grade 1 to 2
    1
    0.5%
    Potassium, High - Grade 0 to 0
    189
    96.9%
    Potassium, High - Grade 0 to 1
    2
    1%
    Potassium, High - Grade 0 to 2
    1
    0.5%
    Potassium, High - Grade 0 to 4
    1
    0.5%
    Potassium, Low - Grade 0 to 0
    184
    94.4%
    Potassium, Low - Grade 0 to 1
    6
    3.1%
    Potassium, Low - Grade 1 to 0
    3
    1.5%
    SGOT/AST, High - Grade 0 to 0
    164
    84.1%
    SGOT/AST, High - Grade 0 to 1
    13
    6.7%
    SGOT/AST, High - Grade 0 to 2
    8
    4.1%
    SGOT/AST, High - Grade 1 to 0
    1
    0.5%
    SGOT/AST, High - Grade 1 to 1
    5
    2.6%
    SGOT/AST, High - Grade 1 to 2
    1
    0.5%
    SGOT/AST, High - Grade 1 to 3
    1
    0.5%
    SGPT/ALT, High - Grade 0 to 0
    158
    81%
    SGPT/ALT, High - Grade 0 to 1
    22
    11.3%
    SGPT/ALT, High - Grade 0 to 2
    5
    2.6%
    SGPT/ALT, High - Grade 1 to 0
    1
    0.5%
    SGPT/ALT, High - Grade 1 to 1
    4
    2.1%
    SGPT/ALT, High - Grade 1 to 2
    2
    1%
    SGPT/ALT, High - Grade 1 to 4
    1
    0.5%
    Sodium, High - Grade 0 to 0
    178
    91.3%
    Sodium, High - Grade 0 to 1
    7
    3.6%
    Sodium, High - Grade 0 to 2
    2
    1%
    Sodium, High - Grade 1 to 0
    4
    2.1%
    Sodium, High - Grade 1 to 1
    2
    1%
    Sodium, Low - Grade 0 to 0
    166
    85.1%
    Sodium, Low - Grade 0 to 1
    19
    9.7%
    Sodium, Low - Grade 0 to 2
    2
    1%
    Sodium, Low - Grade 1 to 0
    3
    1.5%
    Sodium, Low - Grade 1 to 1
    2
    1%
    Sodium, Low - Grade 1 to 2
    1
    0.5%
    4. Primary Outcome
    Title Change From Baseline in Body Temperature at Specified Timepoints
    Description Vital signs that were measured included body temperature, pulse and respiratory rates, systolic and diastolic blood pressure, and weight. On treatment days, measurement occurred prior to emicizumab administration.
    Time Frame Baseline, Weeks 2, 3, and 5; Months 3, 6, 9, 12, and 18; and at Early Termination/Study Completion (up to 24 months)

    Outcome Measure Data

    Analysis Population Description
    Safety Population: all participants who received at least one dose of emicizumab. The number analyzed included participants with a baseline value and a post-baseline value at a given timepoint.
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 193
    Baseline (BL) - Value at Visit
    36.33
    (0.52)
    Change from BL at Week 2
    0.04
    (0.41)
    Change from BL at Week 3
    0.03
    (0.40)
    Change from BL at Week 5
    0.03
    (0.45)
    Change from BL at Month 3
    0.04
    (0.45)
    Change from BL at Month 6
    0.07
    (0.50)
    Change from BL at Month 9
    0.06
    (0.48)
    Change from BL at Month 12
    0.07
    (0.48)
    Change from BL at Month 18
    0.10
    (0.53)
    Change from BL at Early Termination/Study Completion
    0.08
    (0.48)
    5. Primary Outcome
    Title Change From Baseline in Systolic Blood Pressure at Specified Timepoints
    Description Vital signs that were measured included body temperature, pulse and respiratory rates, systolic and diastolic blood pressure, and weight. On treatment days, measurement occurred prior to emicizumab administration.
    Time Frame Baseline, Weeks 2, 3, and 5; Months 3, 6, 9, 12, and 18; and at Early Termination/Study Completion (up to 24 months)

    Outcome Measure Data

    Analysis Population Description
    Safety Population: all participants who received at least one dose of emicizumab. The number analyzed included participants with a baseline value and a post-baseline value at a given timepoint.
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 193
    Baseline (BL) - Value at Visit
    121.1
    (14.3)
    Change from BL at Week 2
    -0.9
    (11.1)
    Change from BL at Week 3
    -1.2
    (10.6)
    Change from BL at Week 5
    -1.3
    (12.3)
    Change from BL at Month 3
    0.1
    (11.5)
    Change from BL at Month 6
    -0.2
    (13.1)
    Change from BL at Month 9
    0.1
    (13.1)
    Change from BL at Month 12
    0.1
    (13.9)
    Change from BL at Month 18
    -0.1
    (13.8)
    Change from BL at Early Termination/Study Completion
    1.9
    (14.1)
    6. Primary Outcome
    Title Change From Baseline in Diastolic Blood Pressure at Specified Timepoints
    Description Vital signs that were measured included body temperature, pulse and respiratory rates, systolic and diastolic blood pressure, and weight. On treatment days, measurement occurred prior to emicizumab administration.
    Time Frame Baseline, Weeks 2, 3, and 5; Months 3, 6, 9, 12, and 18; and at Early Termination/Study Completion (up to 24 months)

    Outcome Measure Data

    Analysis Population Description
    Safety Population: all participants who received at least one dose of emicizumab. The number analyzed included participants with a baseline value and a post-baseline value at a given timepoint.
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 193
    Baseline (BL) - Value at Visit
    75.5
    (10.4)
    Change from BL at Week 2
    -1.2
    (8.5)
    Change from BL at Week 3
    -1.0
    (8.9)
    Change from BL at Week 5
    -1.2
    (9.2)
    Change from BL at Month 3
    -0.3
    (9.8)
    Change from BL at Month 6
    -0.7
    (10.1)
    Change from BL at Month 9
    -1.3
    (9.4)
    Change from BL at Month 12
    -1.2
    (10.4)
    Change from BL at Month 18
    -0.9
    (9.6)
    Change from BL at Early Termination/Study Completion
    0.0
    (11.0)
    7. Primary Outcome
    Title Change From Baseline in Pulse Rate at Specified Timepoints
    Description Vital signs that were measured included body temperature, pulse and respiratory rates, systolic and diastolic blood pressure, and weight. On treatment days, measurement occurred prior to emicizumab administration.
    Time Frame Baseline, Weeks 2, 3, and 5; Months 3, 6, 9, 12, and 18; and at Early Termination/Study Completion (up to 24 months)

    Outcome Measure Data

    Analysis Population Description
    Safety Population: all participants who received at least one dose of emicizumab. The number analyzed included participants with a baseline value and a post-baseline value at a given timepoint.
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 193
    Baseline (BL) - Value at Visit
    76.6
    (11.6)
    Change from BL at Week 2
    1.0
    (9.9)
    Change from BL at Week 3
    1.6
    (11.6)
    Change from BL at Week 5
    -0.5
    (11.3)
    Change from BL at Month 3
    -0.8
    (10.4)
    Change from BL at Month 6
    -0.7
    (11.6)
    Change from BL at Month 9
    -1.0
    (11.3)
    Change from BL at Month 12
    -0.5
    (12.2)
    Change from BL at Month 18
    -2.1
    (12.7)
    Change from BL at Early Termination/Study Completion
    -1.2
    (11.9)
    8. Primary Outcome
    Title Change From Baseline in Respiratory Rate at Specified Timepoints
    Description Vital signs that were measured included body temperature, pulse and respiratory rates, systolic and diastolic blood pressure, and weight. On treatment days, measurement occurred prior to emicizumab administration.
    Time Frame Baseline, Weeks 2, 3, and 5; Months 3, 6, 9, 12, and 18; and at Early Termination/Study Completion (up to 24 months)

    Outcome Measure Data

    Analysis Population Description
    Safety Population: all participants who received at least one dose of emicizumab. The number analyzed included participants with a baseline value and a post-baseline value at a given timepoint.
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 193
    Baseline (BL) - Value at Visit
    17.0
    (3.1)
    Change from BL at Week 2
    0.2
    (2.2)
    Change from BL at Week 3
    0.0
    (2.3)
    Change from BL at Week 5
    -0.1
    (2.5)
    Change from BL at Month 3
    0.3
    (4.7)
    Change from BL at Month 6
    -0.1
    (2.5)
    Change from BL at Month 9
    0.0
    (2.7)
    Change from BL at Month 12
    0.3
    (2.9)
    Change from BL at Month 18
    -0.4
    (2.7)
    Change from BL at Early Termination/Study Completion
    -0.7
    (3.1)
    9. Primary Outcome
    Title Change From Baseline in Body Weight at Specified Timepoints
    Description Vital signs that were measured included body temperature, pulse and respiratory rates, systolic and diastolic blood pressure, and weight. On treatment days, measurement occurred prior to emicizumab administration.
    Time Frame Baseline, Weeks 2, 3, and 5; Months 3, 6, 9, 12, and 18; and at Early Termination/Study Completion (up to 24 months)

    Outcome Measure Data

    Analysis Population Description
    Safety Population: all participants who received at least one dose of emicizumab. The number analyzed included participants with a baseline value and a post-baseline value at a given timepoint.
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 193
    Baseline (BL) - Value at Visit
    69.55
    (16.60)
    Change from BL at Week 2
    0.14
    (1.06)
    Change from BL at Week 3
    0.34
    (1.18)
    Change from BL at Week 5
    0.52
    (1.56)
    Change from BL at Month 3
    0.98
    (2.44)
    Change from BL at Month 6
    1.11
    (3.20)
    Change from BL at Month 9
    1.61
    (4.08)
    Change from BL at Month 12
    1.85
    (4.88)
    Change from BL at Month 18
    2.58
    (5.56)
    Change from BL at Early Termination/Study Completion
    3.15
    (6.78)
    10. Secondary Outcome
    Title Model-Based Annualized Bleed Rates (ABR) for Treated Bleeds, All Bleeds, Treated Joint Bleeds, Treated Target Joint Bleeds, and Treated Spontaneous Bleeds
    Description The number of bleeds over the efficacy period was analyzed as an ABR using a negative binomial regression model. Treated bleeds: bleeds followed by a hemophilia medication reported to be a "Treatment for bleed". All bleeds: included both treated and non-treated bleeds. Treated joint bleeds: treated bleeds where bleed type was "joint bleed" accompanied by at least one of following symptoms: "increased swelling or warmth of the skin over the joint", "increasing pain" or "decreased range of motion or difficulty using the joint compared with baseline". Treated target joint bleeds: treated joint bleeds that occurred in a target joint, defined as a joint in which ≥3 treated joint bleeds occurred during the 24 weeks prior to study entry. Treated spontaneous bleeds: treated bleeds with no other known contributing factor such as trauma or procedure/surgery. For all bleed types, bleeds due to surgery/procedure were excluded. Bleeds occurring after dose up-titration have been excluded.
    Time Frame From first dose of emicizumab until dose up-titration or withdrawal from treatment (median [min-max] efficacy period: 103.14 [1.1-108.3] weeks)

    Outcome Measure Data

    Analysis Population Description
    Intent-to-Treat (ITT) Population: all enrolled participants
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 195
    Treated Bleeds
    0.5
    All Bleeds
    1.1
    Treated Joint Bleeds
    0.4
    Treated Target Joint Bleeds
    0.2
    Treated Spontaneous Bleeds
    0.3
    11. Secondary Outcome
    Title Mean Calculated Annualized Bleed Rates (ABR) for Treated Bleeds, All Bleeds, Treated Joint Bleeds, Treated Target Joint Bleeds, and Treated Spontaneous Bleeds
    Description The number of bleeds over the efficacy period was calculated as: ABR = (number of bleeds/number of days during the efficacy period) x 365.25. Treated bleeds: bleeds followed by a hemophilia medication reported to be a "Treatment for bleed". All bleeds: included both treated and non-treated bleeds. Treated joint bleeds: treated bleeds where bleed type was "joint bleed" accompanied by at least one of following symptoms: "increased swelling or warmth of the skin over the joint", "increasing pain" or "decreased range of motion or difficulty using the joint compared with baseline". Treated target joint bleeds: treated joint bleeds that occurred in a target joint, defined as a joint in which ≥3 treated joint bleeds occurred during the 24 weeks prior to study entry. Treated spontaneous bleeds: treated bleeds with no other known contributing factor such as trauma or procedure/surgery. For all types, bleeds due to surgery/procedure and bleeds occurring after dose up-titration were excluded.
    Time Frame From first dose of emicizumab until dose up-titration or withdrawal from treatment (median [min-max] efficacy period: 103.14 [1.1-108.3] weeks)

    Outcome Measure Data

    Analysis Population Description
    Intent-to-Treat (ITT) Population: all enrolled participants
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 195
    Treated Bleeds
    0.6
    All Bleeds
    1.3
    Treated Joint Bleeds
    0.4
    Treated Target Joint Bleeds
    0.3
    Treated Spontaneous Bleeds
    0.4
    12. Secondary Outcome
    Title Median Calculated Annualized Bleed Rates (ABR) for Treated Bleeds, All Bleeds, Treated Joint Bleeds, Treated Target Joint Bleeds, and Treated Spontaneous Bleeds
    Description The number of bleeds over the efficacy period was calculated as: ABR = (number of bleeds/number of days during the efficacy period) x 365.25. Treated bleeds: bleeds followed by a hemophilia medication reported to be a "Treatment for bleed". All bleeds: included both treated and non-treated bleeds. Treated joint bleeds: treated bleeds where bleed type was "joint bleed" accompanied by at least one of following symptoms: "increased swelling or warmth of the skin over the joint", "increasing pain" or "decreased range of motion or difficulty using the joint compared with baseline". Treated target joint bleeds: treated joint bleeds that occurred in a target joint, defined as a joint in which ≥3 treated joint bleeds occurred during the 24 weeks prior to study entry. Treated spontaneous bleeds: treated bleeds with no other known contributing factor such as trauma or procedure/surgery. For all types, bleeds due to surgery/procedure and bleeds occurring after dose up-titration were excluded.
    Time Frame From first dose of emicizumab until dose up-titration or withdrawal from treatment (median [min-max] efficacy period: 103.14 [1.1-108.3] weeks)

    Outcome Measure Data

    Analysis Population Description
    Intent-to-Treat (ITT) Population: all enrolled participants
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 195
    Treated Bleeds
    0.0
    All Bleeds
    0.0
    Treated Joint Bleeds
    0.0
    Treated Target Joint Bleeds
    0.0
    Treated Spontaneous Bleeds
    0.0
    13. Secondary Outcome
    Title Percentage of Participants by the Categorized Number of Bleeds for Treated Bleeds
    Description Treated bleeds: bleeds followed by a hemophilia medication reported to be a "Treatment for bleed". Bleeds due to surgery/procedure were excluded. The 72-hour rule was implemented: two bleeds of the same type and at the same anatomical location are counted as one bleed if the second bleed occurs within 72 hours from the last treatment for the first bleed. Included data before up-titration only, for participants whose dose was up-titrated.
    Time Frame From first dose of emicizumab until dose up-titration or withdrawal from treatment (median [min-max] efficacy period: 103.14 [1.1-108.3] weeks)

    Outcome Measure Data

    Analysis Population Description
    Intent-to-Treat (ITT) Population: all enrolled participants
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 195
    0 Bleeds
    82.6
    42.4%
    1-3 Bleeds
    12.3
    6.3%
    4-10 Bleeds
    4.1
    2.1%
    >10 Bleeds
    1.0
    0.5%
    14. Secondary Outcome
    Title Percentage of Participants by the Categorized Number of Bleeds for All Bleeds
    Description All bleeds: included both treated and non-treated bleeds. Bleeds due to surgery/procedure were excluded. The 72-hour rule was implemented: two bleeds of the same type and at the same anatomical location are counted as one bleed if the second bleed occurs within 72 hours from the last treatment for the first bleed. Included data before up-titration only, for participants whose dose was up-titrated.
    Time Frame From first dose of emicizumab until dose up-titration or withdrawal from treatment (median [min-max] efficacy period: 103.14 [1.1-108.3] weeks)

    Outcome Measure Data

    Analysis Population Description
    Intent-to-Treat (ITT) Population: all enrolled participants
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 195
    0 Bleeds
    54.9
    28.2%
    1-3 Bleeds
    30.3
    15.5%
    4-10 Bleeds
    12.3
    6.3%
    >10 Bleeds
    2.6
    1.3%
    15. Secondary Outcome
    Title Percentage of Participants by the Categorized Number of Bleeds for Treated Spontaneous Bleeds
    Description Treated spontaneous bleeds: treated bleeds with no other known contributing factor such as trauma or procedure/surgery. Bleeds due to surgery/procedure were excluded. The 72-hour rule was implemented: two bleeds of the same type and at the same anatomical location are counted as one bleed if the second bleed occurs within 72 hours from the last treatment for the first bleed. Included data before up-titration only, for participants whose dose was up-titrated.
    Time Frame From first dose of emicizumab until dose up-titration or withdrawal from treatment (median [min-max] efficacy period: 103.14 [1.1-108.3] weeks)

    Outcome Measure Data

    Analysis Population Description
    Intent-to-Treat (ITT) Population: all enrolled participants
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 195
    0 Bleeds
    89.2
    45.7%
    1-3 Bleeds
    8.7
    4.5%
    4-10 Bleeds
    1.5
    0.8%
    >10 Bleeds
    0.5
    0.3%
    16. Secondary Outcome
    Title Percentage of Participants by the Categorized Calculated Annualized Bleed Rates (ABR) for Treated Bleeds
    Description The number of bleeds over the efficacy period was calculated as an ABR for each participant using the following formula: ABR = (number of bleeds/number of days during the efficacy period) x 365.25. Treated bleeds: bleeds followed by a hemophilia medication reported to be a "Treatment for bleed". Bleeds due to surgery/procedure were excluded. The 72-hour rule was implemented: two bleeds of the same type and at the same anatomical location are counted as one bleed if the second bleed occurs within 72 hours from the last treatment for the first bleed. Included data before up-titration only, for participants whose dose was up-titrated.
    Time Frame From first dose of emicizumab until dose up-titration or withdrawal from treatment (median [min-max] efficacy period: 103.14 [1.1-108.3] weeks)

    Outcome Measure Data

    Analysis Population Description
    Intent-to-Treat (ITT) Population: all enrolled participants
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 195
    ABR <1
    90.3
    46.3%
    ABR 1-3.4
    6.2
    3.2%
    ABR 3.5-10
    2.6
    1.3%
    ABR >10
    1.0
    0.5%
    17. Secondary Outcome
    Title Percentage of Participants by the Categorized Calculated Annualized Bleed Rates (ABR) for All Bleeds
    Description The number of bleeds over the efficacy period was calculated as an ABR for each participant using the following formula: ABR = (number of bleeds/number of days during the efficacy period) x 365.25. All bleeds: included both treated and non-treated bleeds. Bleeds due to surgery/procedure were excluded. The 72-hour rule was implemented: two bleeds of the same type and at the same anatomical location are counted as one bleed if the second bleed occurs within 72 hours from the last treatment for the first bleed. Included data before up-titration only, for participants whose dose was up-titrated.
    Time Frame From first dose of emicizumab until dose up-titration or withdrawal from treatment (median [min-max] efficacy period: 103.14 [1.1-108.3] weeks)

    Outcome Measure Data

    Analysis Population Description
    Intent-to-Treat (ITT) Population: all enrolled participants
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 195
    ABR <1
    72.3
    37.1%
    ABR 1-3.4
    20.5
    10.5%
    ABR 3.5-10
    4.6
    2.4%
    ABR >10
    2.6
    1.3%
    18. Secondary Outcome
    Title Percentage of Participants by the Categorized Calculated Annualized Bleed Rates (ABR) for Treated Spontaneous Bleeds
    Description The number of bleeds over the efficacy period was calculated as an ABR for each participant using the following formula: ABR = (number of bleeds/number of days during the efficacy period) x 365.25. Treated spontaneous bleeds: treated bleeds with no other known contributing factor such as trauma or procedure/surgery. Bleeds due to surgery/procedure were excluded. The 72-hour rule was implemented: two bleeds of the same type and at the same anatomical location are counted as one bleed if the second bleed occurs within 72 hours from the last treatment for the first bleed. Included data before up-titration only, for participants whose dose was up-titrated.
    Time Frame From first dose of emicizumab until dose up-titration or withdrawal from treatment (median [min-max] efficacy period: 103.14 [1.1-108.3] weeks)

    Outcome Measure Data

    Analysis Population Description
    Intent-to-Treat (ITT) Population: all enrolled participants
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 195
    ABR <1
    95.4
    48.9%
    ABR 1-3.4
    2.6
    1.3%
    ABR 3.5-10
    1.0
    0.5%
    ABR >10
    1.0
    0.5%
    19. Secondary Outcome
    Title Change From Baseline in the Hemophilia Adult Quality of Life (Haem-A-QoL) Questionnaire Total Score at Specified Timepoints, Adult Participants
    Description The Haem-A-QoL questionnaire was designed for adult participants (greater than or equal to 18 years old) with hemophilia. It consists of 46 items comprising 10 domains: physical health, treatment, work and school, dealing with hemophilia, feelings, familly planning, future, partnerships and sexuality, sports and leisure, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always; although, for some items there is also a 'not applicable' option. The Total Score is based on the scores for each domain and ranges from 0 to 100, with lower scores reflective of better quality of life.
    Time Frame Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)

    Outcome Measure Data

    Analysis Population Description
    The number analyzed represents the number of adult participants responding to the questionnaire who had a baseline value and a post-baseline value at a given timepoint.
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 155
    Baseline (BL) - Value at Visit
    41.09
    (16.15)
    Change from BL at Month 3
    -17.39
    (12.86)
    Change from BL at Month 6
    -16.40
    (14.58)
    Change from BL at Month 12
    -17.44
    (14.16)
    Change from BL at Month 18
    -16.27
    (15.39)
    Change from BL at Early Termination/Study Completion
    -14.13
    (13.70)
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection 1.5 mg/kg Emicizumab QW
    Comments Month 3 vs. Baseline
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.0001
    Comments
    Method Paired t-test
    Comments
    Statistical Analysis 2
    Statistical Analysis Overview Comparison Group Selection 1.5 mg/kg Emicizumab QW
    Comments Month 6 vs. Baseline
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.0001
    Comments
    Method Paired t-test
    Comments
    Statistical Analysis 3
    Statistical Analysis Overview Comparison Group Selection 1.5 mg/kg Emicizumab QW
    Comments Month 12 vs. Baseline
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.0001
    Comments
    Method Paired t-test
    Comments
    Statistical Analysis 4
    Statistical Analysis Overview Comparison Group Selection 1.5 mg/kg Emicizumab QW
    Comments Month 18 vs. Baseline
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.0001
    Comments
    Method Paired t-test
    Comments
    Statistical Analysis 5
    Statistical Analysis Overview Comparison Group Selection 1.5 mg/kg Emicizumab QW
    Comments Early Terminatinon/Study Completion vs. Baseline
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.0001
    Comments
    Method Paired t-test
    Comments
    20. Secondary Outcome
    Title Percentage of Participants With an Improvement From Baseline Greater Than the Responder Threshold for the Hemophilia Adult Quality of Life (Haem-A-QoL) Questionnaire Total Score at Specified Timepoints
    Description The Haem-A-QoL questionnaire was designed for adult participants (greater than or equal to 18 years old) with hemophilia. It consists of 46 items comprising 10 domains: physical health, treatment, work and school, dealing with hemophilia, feelings, familly planning, future, partnerships and sexuality, sports and leisure, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always; although, for some items there is also a 'not applicable' option. The Total Score is based on the scores for each domain and ranges from 0 to 100, with lower scores reflective of better quality of life. An improvement larger than the responder threshold was defined as a decrease from baseline of at least 7 points in the Haem-A-QoL Total score.
    Time Frame At 3, 6, 12, and 18 months

    Outcome Measure Data

    Analysis Population Description
    The number analyzed represents the number of adult participants responding to the questionnaire who had a post-baseline value at a given timepoint.
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 155
    Month 3
    78.2
    40.1%
    Month 6
    72.4
    37.1%
    Month 12
    70.8
    36.3%
    Month 18
    69.9
    35.8%
    21. Secondary Outcome
    Title Change From Baseline in the Hemophilia Adult Quality of Life (Haem-A-QoL) Questionnaire Physical Health Domain Score at Specified Timepoints, Adult Participants
    Description The Haem-A-QoL questionnaire was designed for adult participants (greater than or equal to 18 years old) with hemophilia. It consists of 46 items comprising 10 domains: physical health, treatment, work and school, dealing with hemophilia, feelings, familly planning, future, partnerships and sexuality, sports and leisure, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always; although, for some items there is also a 'not applicable' option. Scale scores for each domain range from 0 to 100, with lower scores reflective of better quality of life.
    Time Frame Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)

    Outcome Measure Data

    Analysis Population Description
    The number analyzed represents the number of adult participants responding to the questionnaire who had a baseline value and a post-baseline value at a given timepoint.
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 155
    Baseline (BL) - Value at Visit
    51.13
    (23.02)
    Change from BL at Month 3
    -27.36
    (20.70)
    Change from BL at Month 6
    -26.10
    (23.12)
    Change from BL at Month 12
    -25.21
    (23.31)
    Change from BL at Month 18
    -23.14
    (24.51)
    Change from BL at Early Termination/Study Completion
    -23.29
    (25.16)
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection 1.5 mg/kg Emicizumab QW
    Comments Month 3 vs. Baseline
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.0001
    Comments
    Method Paired t-test
    Comments
    Statistical Analysis 2
    Statistical Analysis Overview Comparison Group Selection 1.5 mg/kg Emicizumab QW
    Comments Month 6 vs. Baseline
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.0001
    Comments
    Method Paired t-test
    Comments
    Statistical Analysis 3
    Statistical Analysis Overview Comparison Group Selection 1.5 mg/kg Emicizumab QW
    Comments Month 12 vs. Baseline
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.0001
    Comments
    Method Paired t-test
    Comments
    Statistical Analysis 4
    Statistical Analysis Overview Comparison Group Selection 1.5 mg/kg Emicizumab QW
    Comments Month 18 vs. Baseline
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.0001
    Comments
    Method Paired t-test
    Comments
    Statistical Analysis 5
    Statistical Analysis Overview Comparison Group Selection 1.5 mg/kg Emicizumab QW
    Comments Early Terminatinon/Study Completion vs. Baseline
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.0001
    Comments
    Method Paired t-test
    Comments
    22. Secondary Outcome
    Title Percentage of Participants With an Improvement From Baseline Greater Than the Responder Threshold for the Hemophilia Adult Quality of Life (Haem-A-QoL) Questionnaire Physical Health Domain Score at Specified Timepoints
    Description The Haem-A-QoL questionnaire was designed for adult participants (greater than or equal to 18 years old) with hemophilia. It consists of 46 items comprising 10 domains: physical health, treatment, work and school, dealing with hemophilia, feelings, familly planning, future, partnerships and sexuality, sports and leisure, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always; although, for some items there is also a 'not applicable' option. Scale scores for each domain range from 0 to 100, with lower scores reflective of better quality of life. An improvement larger than the responder threshold was defined as a decrease from baseline of at least 10 points in the Haem-A-QoL Physical Health domain score.
    Time Frame At 3, 6, 12, and 18 months

    Outcome Measure Data

    Analysis Population Description
    The number analyzed represents the number of adult participants responding to the questionnaire who had a post-baseline value at a given timepoint.
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 155
    Month 3
    79.6
    40.8%
    Month 6
    74.5
    38.2%
    Month 12
    72.9
    37.4%
    Month 18
    71.3
    36.6%
    23. Secondary Outcome
    Title Change From Baseline in the Hemophilia Adult Quality of Life (Haem-A-QoL) Questionnaire Treatment Domain Score at Specified Timepoints, Adult Participants
    Description The Haem-A-QoL questionnaire was designed for adult participants (greater than or equal to 18 years old) with hemophilia. It consists of 46 items comprising 10 domains: physical health, treatment, work and school, dealing with hemophilia, feelings, familly planning, future, partnerships and sexuality, sports and leisure, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always; although, for some items there is also a 'not applicable' option. Scale scores for each domain range from 0 to 100, with lower scores reflective of better quality of life.
    Time Frame Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)

    Outcome Measure Data

    Analysis Population Description
    The number analyzed represents the number of adult participants responding to the questionnaire who had a baseline value and a post-baseline value at a given timepoint.
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 155
    Baseline (BL) - Value at Visit
    39.40
    (19.89)
    Change from BL at Month 3
    -23.44
    (22.07)
    Change from BL at Month 6
    -21.01
    (23.74)
    Change from BL at Month 12
    -22.21
    (22.57)
    Change from BL at Month 18
    -20.34
    (25.37)
    Change from BL at Early Termination/Study Completion
    -21.16
    (22.31)
    24. Secondary Outcome
    Title Change From Baseline in the Hemophilia Adult Quality of Life (Haem-A-QoL) Questionnaire Work and School Domain Score at Specified Timepoints, Adult Participants
    Description The Haem-A-QoL questionnaire was designed for adult participants (greater than or equal to 18 years old) with hemophilia. It consists of 46 items comprising 10 domains: physical health, treatment, work and school, dealing with hemophilia, feelings, familly planning, future, partnerships and sexuality, sports and leisure, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always; although, for some items there is also a 'not applicable' option. Scale scores for each domain range from 0 to 100, with lower scores reflective of better quality of life.
    Time Frame Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)

    Outcome Measure Data

    Analysis Population Description
    The number analyzed represents the number of adult participants responding to the questionnaire who had a baseline value and a post-baseline value at a given timepoint.
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 155
    Baseline (BL) - Value at Visit
    39.23
    (25.31)
    Change from BL at Month 3
    -21.40
    (26.51)
    Change from BL at Month 6
    -21.91
    (27.17)
    Change from BL at Month 12
    -22.43
    (25.55)
    Change from BL at Month 18
    -21.43
    (26.65)
    Change from BL at Early Termination/Study Completion
    -18.83
    (29.54)
    25. Secondary Outcome
    Title Change From Baseline in the Hemophilia Adult Quality of Life (Haem-A-QoL) Questionnaire Dealing With Hemophilia Domain Score at Specified Timepoints, Adult Participants
    Description The Haem-A-QoL questionnaire was designed for adult participants (greater than or equal to 18 years old) with hemophilia. It consists of 46 items comprising 10 domains: physical health, treatment, work and school, dealing with hemophilia, feelings, familly planning, future, partnerships and sexuality, sports and leisure, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always; although, for some items there is also a 'not applicable' option. Scale scores for each domain range from 0 to 100, with lower scores reflective of better quality of life.
    Time Frame Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)

    Outcome Measure Data

    Analysis Population Description
    The number analyzed represents the number of adult participants responding to the questionnaire who had a baseline value and a post-baseline value at a given timepoint.
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 155
    Baseline (BL) - Value at Visit
    26.61
    (19.76)
    Change from BL at Month 3
    5.32
    (30.06)
    Change from BL at Month 6
    5.73
    (28.14)
    Change from BL at Month 12
    5.24
    (29.18)
    Change from BL at Month 18
    7.70
    (29.75)
    Change from BL at Early Termination/Study Completion
    10.60
    (33.42)
    26. Secondary Outcome
    Title Change From Baseline in the Hemophilia Adult Quality of Life (Haem-A-QoL) Questionnaire Feelings Domain Score at Specified Timepoints, Adult Participants
    Description The Haem-A-QoL questionnaire was designed for adult participants (greater than or equal to 18 years old) with hemophilia. It consists of 46 items comprising 10 domains: physical health, treatment, work and school, dealing with hemophilia, feelings, familly planning, future, partnerships and sexuality, sports and leisure, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always; although, for some items there is also a 'not applicable' option. Scale scores for each domain range from 0 to 100, with lower scores reflective of better quality of life.
    Time Frame Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)

    Outcome Measure Data

    Analysis Population Description
    The number analyzed represents the number of adult participants responding to the questionnaire who had a baseline value and a post-baseline value at a given timepoint.
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 155
    Baseline (BL) - Value at Visit
    36.25
    (24.53)
    Change from BL at Month 3
    -21.22
    (22.69)
    Change from BL at Month 6
    -20.88
    (24.11)
    Change from BL at Month 12
    -22.37
    (23.78)
    Change from BL at Month 18
    -19.55
    (25.43)
    Change from BL at Early Termination/Study Completion
    -17.95
    (23.62)
    27. Secondary Outcome
    Title Change From Baseline in the Hemophilia Adult Quality of Life (Haem-A-QoL) Questionnaire Family Planning Domain Score at Specified Timepoints, Adult Participants
    Description The Haem-A-QoL questionnaire was designed for adult participants (greater than or equal to 18 years old) with hemophilia. It consists of 46 items comprising 10 domains: physical health, treatment, work and school, dealing with hemophilia, feelings, familly planning, future, partnerships and sexuality, sports and leisure, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always; although, for some items there is also a 'not applicable' option. Scale scores for each domain range from 0 to 100, with lower scores reflective of better quality of life.
    Time Frame Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)

    Outcome Measure Data

    Analysis Population Description
    The number analyzed represents the number of adult participants responding to the questionnaire who had a baseline value and a post-baseline value at a given timepoint.
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 155
    Baseline (BL) - Value at Visit
    25.64
    (28.49)
    Change from BL at Month 3
    -8.64
    (20.95)
    Change from BL at Month 6
    -9.07
    (20.78)
    Change from BL at Month 12
    -10.83
    (22.51)
    Change from BL at Month 18
    -12.39
    (25.20)
    Change from BL at Early Termination/Study Completion
    -9.38
    (24.81)
    28. Secondary Outcome
    Title Change From Baseline in the Hemophilia Adult Quality of Life (Haem-A-QoL) Questionnaire Future Domain Score at Specified Timepoints, Adult Participants
    Description The Haem-A-QoL questionnaire was designed for adult participants (greater than or equal to 18 years old) with hemophilia. It consists of 46 items comprising 10 domains: physical health, treatment, work and school, dealing with hemophilia, feelings, familly planning, future, partnerships and sexuality, sports and leisure, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always; although, for some items there is also a 'not applicable' option. Scale scores for each domain range from 0 to 100, with lower scores reflective of better quality of life.
    Time Frame Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)

    Outcome Measure Data

    Analysis Population Description
    The number analyzed represents the number of adult participants responding to the questionnaire who had a baseline value and a post-baseline value at a given timepoint.
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 155
    Baseline (BL) - Value at Visit
    42.70
    (21.95)
    Change from BL at Month 3
    -15.56
    (17.63)
    Change from BL at Month 6
    -15.46
    (17.83)
    Change from BL at Month 12
    -14.46
    (20.10)
    Change from BL at Month 18
    -14.43
    (19.83)
    Change from BL at Early Termination/Study Completion
    -13.29
    (19.56)
    29. Secondary Outcome
    Title Change From Baseline in the Hemophilia Adult Quality of Life (Haem-A-QoL) Questionnaire Partnership and Sexuality Domain Score at Specified Timepoints, Adult Participants
    Description The Haem-A-QoL questionnaire was designed for adult participants (greater than or equal to 18 years old) with hemophilia. It consists of 46 items comprising 10 domains: physical health, treatment, work and school, dealing with hemophilia, feelings, familly planning, future, partnerships and sexuality, sports and leisure, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always; although, for some items there is also a 'not applicable' option. Scale scores for each domain range from 0 to 100, with lower scores reflective of better quality of life.
    Time Frame Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)

    Outcome Measure Data

    Analysis Population Description
    The number analyzed represents the number of adult participants responding to the questionnaire who had a baseline value and a post-baseline value at a given timepoint.
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 155
    Baseline (BL) - Value at Visit
    23.17
    (28.65)
    Change from BL at Month 3
    -7.35
    (25.25)
    Change from BL at Month 6
    -6.03
    (22.76)
    Change from BL at Month 12
    -7.74
    (27.60)
    Change from BL at Month 18
    -9.72
    (28.16)
    Change from BL at Early Termination/Study Completion
    -4.05
    (21.32)
    30. Secondary Outcome
    Title Change From Baseline in the Hemophilia Adult Quality of Life (Haem-A-QoL) Questionnaire Sports and Leisure Domain Score at Specified Timepoints, Adult Participants
    Description The Haem-A-QoL questionnaire was designed for adult participants (greater than or equal to 18 years old) with hemophilia. It consists of 46 items comprising 10 domains: physical health, treatment, work and school, dealing with hemophilia, feelings, familly planning, future, partnerships and sexuality, sports and leisure, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always; although, for some items there is also a 'not applicable' option. Scale scores for each domain range from 0 to 100, with lower scores reflective of better quality of life.
    Time Frame Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)

    Outcome Measure Data

    Analysis Population Description
    The number analyzed represents the number of adult participants responding to the questionnaire who had a baseline value and a post-baseline value at a given timepoint.
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 155
    Baseline (BL) - Value at Visit
    68.86
    (21.24)
    Change from BL at Month 3
    -19.65
    (23.67)
    Change from BL at Month 6
    -17.63
    (25.86)
    Change from BL at Month 12
    -22.56
    (22.17)
    Change from BL at Month 18
    -20.20
    (25.86)
    Change from BL at Early Termination/Study Completion
    -20.65
    (28.65)
    31. Secondary Outcome
    Title Change From Baseline in the Hemophilia Adult Quality of Life (Haem-A-QoL) Questionnaire View of Yourself Domain Score at Specified Timepoints, Adult Participants
    Description The Haem-A-QoL questionnaire was designed for adult participants (greater than or equal to 18 years old) with hemophilia. It consists of 46 items comprising 10 domains: physical health, treatment, work and school, dealing with hemophilia, feelings, familly planning, future, partnerships and sexuality, sports and leisure, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always; although, for some items there is also a 'not applicable' option. Scale scores for each domain range from 0 to 100, with lower scores reflective of better quality of life.
    Time Frame Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)

    Outcome Measure Data

    Analysis Population Description
    The number analyzed represents the number of adult participants responding to the questionnaire who had a baseline value and a post-baseline value at a given timepoint.
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 155
    Baseline (BL) - Value at Visit
    43.57
    (22.05)
    Change from BL at Month 3
    -13.51
    (20.63)
    Change from BL at Month 6
    -15.04
    (21.19)
    Change from BL at Month 12
    -15.71
    (19.88)
    Change from BL at Month 18
    -15.19
    (21.88)
    Change from BL at Early Termination/Study Completion
    -9.50
    (20.70)
    32. Secondary Outcome
    Title Change From Baseline in the Hemophilia Quality of Life Short Form (Haemo-QoL-SF) Questionnaire Total Score at Specified Timepoints, Adolescent Participants
    Description The Haemo-QoL-SF was designed as a series of age-related questionnaires to measure health-related quality of life in children and adolescents (12-17 year olds) with hemophilia. This version contains 35 items and covers nine domains considered relevant for children's health-related quality of life: physical health, treatment, sports and school, dealing with hemophilia, feelings, family, friends, other people, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always. The Total Score is derived from the scores for all domains and scale scores range from 0 to 100, with a lower score reflective of better health-related quality of life.
    Time Frame Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)

    Outcome Measure Data

    Analysis Population Description
    The number analyzed represents the number of adolescent participants responding to the questionnaire who had a baseline value and a post-baseline value at a given timepoint.
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 40
    Baseline (BL) - Value at Visit
    35.10
    (12.42)
    Change from BL at Month 3
    -9.60
    (12.51)
    Change from BL at Month 6
    -12.65
    (12.72)
    Change from BL at Month 12
    -13.57
    (13.20)
    Change from BL at Month 18
    -14.02
    (11.83)
    Change from BL at Early Termination/Study Completion
    -18.37
    (17.53)
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection 1.5 mg/kg Emicizumab QW
    Comments Month 3 vs. Baseline
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value 0.0001
    Comments
    Method Paired t-test
    Comments
    Statistical Analysis 2
    Statistical Analysis Overview Comparison Group Selection 1.5 mg/kg Emicizumab QW
    Comments Month 6 vs. Baseline
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.0001
    Comments
    Method Paired t-test
    Comments
    Statistical Analysis 3
    Statistical Analysis Overview Comparison Group Selection 1.5 mg/kg Emicizumab QW
    Comments Month 12 vs. Baseline
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.0001
    Comments
    Method Paired t-test
    Comments
    Statistical Analysis 4
    Statistical Analysis Overview Comparison Group Selection 1.5 mg/kg Emicizumab QW
    Comments Month 18 vs. Baseline
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.0001
    Comments
    Method Paired t-test
    Comments
    Statistical Analysis 5
    Statistical Analysis Overview Comparison Group Selection 1.5 mg/kg Emicizumab QW
    Comments Early Terminatinon/Study Completion vs. Baseline
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value 0.0004
    Comments
    Method Paired t-test
    Comments
    33. Secondary Outcome
    Title Percentage of Participants With an Improvement From Baseline Greater Than the Responder Threshold for the Hemophilia Quality of Life Short Form (Haemo-QoL-SF) Questionnaire Total Score at Specified Timepoints
    Description The Haemo-QoL-SF was designed as a series of age-related questionnaires to measure health-related quality of life in children and adolescents (12-17 year olds) with hemophilia. This version contains 35 items and covers nine domains considered relevant for children's health-related quality of life: physical health, treatment, sports and school, dealing with hemophilia, feelings, family, friends, other people, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always. The Total Score is derived from the scores for all domains and scale scores range from 0 to 100, with a lower score reflective of better health-related quality of life. An improvement larger than the responder threshold was defined as a decrease of at least 5 points in the Haemo-QoL-SF Total score.
    Time Frame At 3, 6, 12, and 18 months

    Outcome Measure Data

    Analysis Population Description
    The number analyzed represents the number of adolescent participants responding to the questionnaire who had a post-baseline value at a given timepoint.
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 40
    Month 3
    63.9
    32.8%
    Month 6
    75.7
    38.8%
    Month 12
    75.0
    38.5%
    Month 18
    69.2
    35.5%
    34. Secondary Outcome
    Title Change From Baseline in the Hemophilia Quality of Life Short Form (Haemo-QoL-SF) Questionnaire Physical Health Domain Score at Specified Timepoints, Adolescent Participants
    Description The Haemo-QoL-SF was designed as a series of age-related questionnaires to measure health-related quality of life in children and adolescents (12-17 year olds) with hemophilia. This version contains 35 items and covers nine domains considered relevant for children's health-related quality of life: physical health, treatment, sports and school, dealing with hemophilia, feelings, family, friends, other people, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always. Scale scores range from 0 to 100, with a lower score reflective of better health-related quality of life.
    Time Frame Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)

    Outcome Measure Data

    Analysis Population Description
    The number analyzed represents the number of adolescent participants responding to the questionnaire who had a baseline value and a post-baseline value at a given timepoint.
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 40
    Baseline (BL) - Value at Visit
    42.14
    (18.40)
    Change from BL at Month 3
    -29.10
    (20.12)
    Change from BL at Month 6
    -29.78
    (17.55)
    Change from BL at Month 12
    -30.47
    (20.74)
    Change from BL at Month 18
    -30.71
    (18.83)
    Change from BL at Early Termination/Study Completion
    -34.03
    (25.66)
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection 1.5 mg/kg Emicizumab QW
    Comments Month 3 vs. Baseline
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.0001
    Comments
    Method Paired t-test
    Comments
    Statistical Analysis 2
    Statistical Analysis Overview Comparison Group Selection 1.5 mg/kg Emicizumab QW
    Comments Month 6 vs. Baseline
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.0001
    Comments
    Method Paired t-test
    Comments
    Statistical Analysis 3
    Statistical Analysis Overview Comparison Group Selection 1.5 mg/kg Emicizumab QW
    Comments Month 12 vs. Baseline
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.0001
    Comments
    Method Paired t-test
    Comments
    Statistical Analysis 4
    Statistical Analysis Overview Comparison Group Selection 1.5 mg/kg Emicizumab QW
    Comments Month 18 vs. Baseline
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.0001
    Comments
    Method Paired t-test
    Comments
    Statistical Analysis 5
    Statistical Analysis Overview Comparison Group Selection 1.5 mg/kg Emicizumab QW
    Comments Early Terminatinon/Study Completion vs. Baseline
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.0001
    Comments
    Method Paired t-test
    Comments
    35. Secondary Outcome
    Title Percentage of Participants With an Improvement From Baseline Greater Than the Responder Threshold for the Hemophilia Quality of Life Short Form (Haemo-QoL-SF) Questionnaire Physical Health Domain Score at Specified Timepoints
    Description The Haemo-QoL-SF was designed as a series of age-related questionnaires to measure health-related quality of life in children and adolescents (12-17 year olds) with hemophilia. This version contains 35 items and covers nine domains considered relevant for children's health-related quality of life: physical health, treatment, sports and school, dealing with hemophilia, feelings, family, friends, other people, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always. Scale scores range from 0 to 100, with a lower score reflective of better health-related quality of life. An improvement larger than the responder threshold was defined as a decrease of at least 10 points in the Haemo-QoL-SF Physical Health domain score.
    Time Frame At 3, 6, 12, and 18 months

    Outcome Measure Data

    Analysis Population Description
    The number analyzed represents the number of adolescent participants responding to the questionnaire who had a post-baseline value at a given timepoint.
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 40
    Month 3
    77.8
    39.9%
    Month 6
    78.4
    40.2%
    Month 12
    75.0
    38.5%
    Month 18
    79.5
    40.8%
    36. Secondary Outcome
    Title Change From Baseline in the Hemophilia Quality of Life Short Form (Haemo-QoL-SF) Questionnaire Treatment Domain Score at Specified Timepoints, Adolescent Participants
    Description The Haemo-QoL-SF was designed as a series of age-related questionnaires to measure health-related quality of life in children and adolescents (12-17 year olds) with hemophilia. This version contains 35 items and covers nine domains considered relevant for children's health-related quality of life: physical health, treatment, sports and school, dealing with hemophilia, feelings, family, friends, other people, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always. Scale scores range from 0 to 100, with a lower score reflective of better health-related quality of life.
    Time Frame Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)

    Outcome Measure Data

    Analysis Population Description
    The number analyzed represents the number of adolescent participants responding to the questionnaire who had a baseline value and a post-baseline value at a given timepoint.
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 40
    Baseline (BL) - Value at Visit
    31.61
    (18.12)
    Change from BL at Month 3
    -9.38
    (20.94)
    Change from BL at Month 6
    -8.64
    (23.23)
    Change from BL at Month 12
    -10.74
    (21.31)
    Change from BL at Month 18
    -12.68
    (21.68)
    Change from BL at Early Termination/Study Completion
    -20.83
    (23.87)
    37. Secondary Outcome
    Title Change From Baseline in the Hemophilia Quality of Life Short Form (Haemo-QoL-SF) Questionnaire Sports and School Domain Score at Specified Timepoints, Adolescent Participants
    Description The Haemo-QoL-SF was designed as a series of age-related questionnaires to measure health-related quality of life in children and adolescents (12-17 year olds) with hemophilia. This version contains 35 items and covers nine domains considered relevant for children's health-related quality of life: physical health, treatment, sports and school, dealing with hemophilia, feelings, family, friends, other people, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always. Scale scores range from 0 to 100, with a lower score reflective of better health-related quality of life.
    Time Frame Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)

    Outcome Measure Data

    Analysis Population Description
    The number analyzed represents the number of adolescent participants responding to the questionnaire who had a baseline value and a post-baseline value at a given timepoint.
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 40
    Baseline (BL) - Value at Visit
    62.32
    (21.30)
    Change from BL at Month 3
    -15.82
    (25.55)
    Change from BL at Month 6
    -20.04
    (29.27)
    Change from BL at Month 12
    -22.07
    (26.71)
    Change from BL at Month 18
    -28.21
    (27.80)
    Change from BL at Early Termination/Study Completion
    -23.61
    (28.16)
    38. Secondary Outcome
    Title Change From Baseline in the Hemophilia Quality of Life Short Form (Haemo-QoL-SF) Questionnaire Dealing With Hemophilia Domain Score at Specified Timepoints, Adolescent Participants
    Description The Haemo-QoL-SF was designed as a series of age-related questionnaires to measure health-related quality of life in children and adolescents (12-17 year olds) with hemophilia. This version contains 35 items and covers nine domains considered relevant for children's health-related quality of life: physical health, treatment, sports and school, dealing with hemophilia, feelings, family, friends, other people, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always. Scale scores range from 0 to 100, with a lower score reflective of better health-related quality of life.
    Time Frame Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)

    Outcome Measure Data

    Analysis Population Description
    The number analyzed represents the number of adolescent participants responding to the questionnaire who had a baseline value and a post-baseline value at a given timepoint.
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 40
    Baseline (BL) - Value at Visit
    24.11
    (14.79)
    Change from BL at Month 3
    -7.23
    (18.25)
    Change from BL at Month 6
    -7.72
    (17.75)
    Change from BL at Month 12
    -10.35
    (20.24)
    Change from BL at Month 18
    -3.39
    (25.70)
    Change from BL at Early Termination/Study Completion
    -12.50
    (23.48)
    39. Secondary Outcome
    Title Change From Baseline in the Hemophilia Quality of Life Short Form (Haemo-QoL-SF) Questionnaire Feelings Domain Score at Specified Timepoints, Adolescent Participants
    Description The Haemo-QoL-SF was designed as a series of age-related questionnaires to measure health-related quality of life in children and adolescents (12-17 year olds) with hemophilia. This version contains 35 items and covers nine domains considered relevant for children's health-related quality of life: physical health, treatment, sports and school, dealing with hemophilia, feelings, family, friends, other people, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always. Scale scores range from 0 to 100, with a lower score reflective of better health-related quality of life.
    Time Frame Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)

    Outcome Measure Data

    Analysis Population Description
    The number analyzed represents the number of adolescent participants responding to the questionnaire who had a baseline value and a post-baseline value at a given timepoint.
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 40
    Baseline (BL) - Value at Visit
    26.43
    (25.10)
    Change from BL at Month 3
    -9.57
    (20.08)
    Change from BL at Month 6
    -16.36
    (21.54)
    Change from BL at Month 12
    -13.09
    (22.80)
    Change from BL at Month 18
    -15.18
    (25.51)
    Change from BL at Early Termination/Study Completion
    -23.96
    (32.67)
    40. Secondary Outcome
    Title Change From Baseline in the Hemophilia Quality of Life Short Form (Haemo-QoL-SF) Questionnaire Family Domain Score at Specified Timepoints, Adolescent Participants
    Description The Haemo-QoL-SF was designed as a series of age-related questionnaires to measure health-related quality of life in children and adolescents (12-17 year olds) with hemophilia. This version contains 35 items and covers nine domains considered relevant for children's health-related quality of life: physical health, treatment, sports and school, dealing with hemophilia, feelings, family, friends, other people, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always. Scale scores range from 0 to 100, with a lower score reflective of better health-related quality of life.
    Time Frame Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)

    Outcome Measure Data

    Analysis Population Description
    The number analyzed represents the number of adolescent participants responding to the questionnaire who had a baseline value and a post-baseline value at a given timepoint.
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 40
    Baseline (BL) - Value at Visit
    46.07
    (20.79)
    Change from BL at Month 3
    -6.84
    (15.66)
    Change from BL at Month 6
    -11.95
    (20.84)
    Change from BL at Month 12
    -14.84
    (23.32)
    Change from BL at Month 18
    -15.36
    (21.67)
    Change from BL at Early Termination/Study Completion
    -15.28
    (19.08)
    41. Secondary Outcome
    Title Change From Baseline in the Hemophilia Quality of Life Short Form (Haemo-QoL-SF) Questionnaire Friends Domain Score at Specified Timepoints, Adolescent Participants
    Description The Haemo-QoL-SF was designed as a series of age-related questionnaires to measure health-related quality of life in children and adolescents (12-17 year olds) with hemophilia. This version contains 35 items and covers nine domains considered relevant for children's health-related quality of life: physical health, treatment, sports and school, dealing with hemophilia, feelings, family, friends, other people, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always. Scale scores range from 0 to 100, with a lower score reflective of better health-related quality of life.
    Time Frame Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)

    Outcome Measure Data

    Analysis Population Description
    The number analyzed represents the number of adolescent participants responding to the questionnaire who had a baseline value and a post-baseline value at a given timepoint.
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 40
    Baseline (BL) - Value at Visit
    35.95
    (26.02)
    Change from BL at Month 3
    -0.52
    (24.95)
    Change from BL at Month 6
    -3.19
    (28.13)
    Change from BL at Month 12
    -5.47
    (27.57)
    Change from BL at Month 18
    -5.95
    (36.41)
    Change from BL at Early Termination/Study Completion
    -7.41
    (31.56)
    42. Secondary Outcome
    Title Change From Baseline in the Hemophilia Quality of Life Short Form (Haemo-QoL-SF) Questionnaire Other People Domain Score at Specified Timepoints, Adolescent Participants
    Description The Haemo-QoL-SF was designed as a series of age-related questionnaires to measure health-related quality of life in children and adolescents (12-17 year olds) with hemophilia. This version contains 35 items and covers nine domains considered relevant for children's health-related quality of life: physical health, treatment, sports and school, dealing with hemophilia, feelings, family, friends, other people, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always. Scale scores range from 0 to 100, with a lower score reflective of better health-related quality of life.
    Time Frame Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)

    Outcome Measure Data

    Analysis Population Description
    The number analyzed represents the number of adolescent participants responding to the questionnaire who had a baseline value and a post-baseline value at a given timepoint.
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 40
    Baseline (BL) - Value at Visit
    21.43
    (17.50)
    Change from BL at Month 3
    -2.93
    (18.72)
    Change from BL at Month 6
    -5.51
    (19.08)
    Change from BL at Month 12
    -8.01
    (18.53)
    Change from BL at Month 18
    -6.79
    (17.51)
    Change from BL at Early Termination/Study Completion
    -11.81
    (18.55)
    43. Secondary Outcome
    Title Change From Baseline in the Hemophilia Quality of Life Short Form (Haemo-QoL-SF) Questionnaire View of Yourself Domain Score at Specified Timepoints, Adolescent Participants
    Description The Haemo-QoL-SF was designed as a series of age-related questionnaires to measure health-related quality of life in children and adolescents (12-17 year olds) with hemophilia. This version contains 35 items and covers nine domains considered relevant for children's health-related quality of life: physical health, treatment, sports and school, dealing with hemophilia, feelings, family, friends, other people, and view of yourself. Items are rated by participants with one of five response options: never, seldom, sometimes, often, and always. Scale scores range from 0 to 100, with a lower score reflective of better health-related quality of life.
    Time Frame Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)

    Outcome Measure Data

    Analysis Population Description
    The number analyzed represents the number of adolescent participants responding to the questionnaire who had a baseline value and a post-baseline value at a given timepoint.
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 40
    Baseline (BL) - Value at Visit
    26.07
    (22.04)
    Change from BL at Month 3
    -2.73
    (26.03)
    Change from BL at Month 6
    -8.27
    (23.27)
    Change from BL at Month 12
    -5.08
    (24.82)
    Change from BL at Month 18
    -5.89
    (21.54)
    Change from BL at Early Termination/Study Completion
    -13.19
    (26.59)
    44. Secondary Outcome
    Title Change From Baseline in the EuroQoL Five-Dimension-Five Levels Questionnaire (EQ-5D-5L) Index Utility Score at Specified Timepoints
    Description The EQ-5D-5L is a generic, self-reported, preference-based health utility measure that consists of six questions and is used to assess health status and inform pharmacoeconomic evaluations. The index utility score is based on the participant's assessment of their health on five scales: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. It ranges from -0.224 to 1, with 0 corresponding to death and 1 corresponding to full health; negative values correspond to health states worse than death. Higher scores indicate better quality of life.
    Time Frame Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)

    Outcome Measure Data

    Analysis Population Description
    The number analyzed represents the number of participants responding to the questionnaire who had a baseline value and a post-baseline value at a given timepoint.
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 195
    Baseline (BL) - Value at Visit
    0.67
    (0.23)
    Change from BL at Month 3
    0.08
    (0.18)
    Change from BL at Month 6
    0.11
    (0.18)
    Change from BL at Month 12
    0.09
    (0.19)
    Change from BL at Month 18
    0.07
    (0.21)
    Change from BL at Early Termination/Study Completion
    0.10
    (0.22)
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection 1.5 mg/kg Emicizumab QW
    Comments Month 3 vs. Baseline
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.0001
    Comments
    Method Paired t-test
    Comments
    Statistical Analysis 2
    Statistical Analysis Overview Comparison Group Selection 1.5 mg/kg Emicizumab QW
    Comments Month 6 vs. Baseline
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.0001
    Comments
    Method Paired t-test
    Comments
    Statistical Analysis 3
    Statistical Analysis Overview Comparison Group Selection 1.5 mg/kg Emicizumab QW
    Comments Month 12 vs. Baseline
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.0001
    Comments
    Method Paired t-test
    Comments
    Statistical Analysis 4
    Statistical Analysis Overview Comparison Group Selection 1.5 mg/kg Emicizumab QW
    Comments Month 18 vs. Baseline
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.0001
    Comments
    Method Paired t-test
    Comments
    Statistical Analysis 5
    Statistical Analysis Overview Comparison Group Selection 1.5 mg/kg Emicizumab QW
    Comments Early Terminatinon/Study Completion vs. Baseline
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.0001
    Comments
    Method Paired t-test
    Comments
    45. Secondary Outcome
    Title Change From Baseline in the EuroQoL Five-Dimension-Five Levels Questionnaire (EQ-5D-5L) Quality-of-Life Visual Analogue Scale (VAS) Score at Specified Timepoints
    Description The EQ-5D-5L is a generic, self-reported, preference-based health utility measure that consists of six questions and is used to assess health status and inform pharmacoeconomic evaluations. The visual analogue scale (VAS) ranges from 0 to 100 points, on which the participant self-assesses their current health status; 0 being the worst health you can imagine and 100 being the best health you can imagine. Higher scores are reflective of better health.
    Time Frame Baseline (Week 1), 3, 6, 12, and 18 months, and at Early Termination or Study Completion (up to 24 months)

    Outcome Measure Data

    Analysis Population Description
    The number analyzed represents the number of participants responding to the questionnaire who had a baseline value and a post-baseline value at a given timepoint.
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 195
    Baseline (BL) - Value at Visit
    71.01
    (19.41)
    Change from BL at Month 3
    8.02
    (18.70)
    Change from BL at Month 6
    10.27
    (17.24)
    Change from BL at Month 12
    10.69
    (18.18)
    Change from BL at Month 18
    9.49
    (21.08)
    Change from BL at Early Termination/Study Completion
    14.52
    (17.91)
    Statistical Analysis 1
    Statistical Analysis Overview Comparison Group Selection 1.5 mg/kg Emicizumab QW
    Comments Month 3 vs. Baseline
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.0001
    Comments
    Method Paired t-test
    Comments
    Statistical Analysis 2
    Statistical Analysis Overview Comparison Group Selection 1.5 mg/kg Emicizumab QW
    Comments Month 6 vs. Baseline
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.0001
    Comments
    Method Paired t-test
    Comments
    Statistical Analysis 3
    Statistical Analysis Overview Comparison Group Selection 1.5 mg/kg Emicizumab QW
    Comments Month 12 vs. Baseline
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.0001
    Comments
    Method Paired t-test
    Comments
    Statistical Analysis 4
    Statistical Analysis Overview Comparison Group Selection 1.5 mg/kg Emicizumab QW
    Comments Month 18 vs. Baseline
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.0001
    Comments
    Method Paired t-test
    Comments
    Statistical Analysis 5
    Statistical Analysis Overview Comparison Group Selection 1.5 mg/kg Emicizumab QW
    Comments Early Terminatinon/Study Completion vs. Baseline
    Type of Statistical Test Superiority
    Comments
    Statistical Test of Hypothesis p-Value <0.0001
    Comments
    Method Paired t-test
    Comments
    46. Secondary Outcome
    Title Percentage of Participants Who Preferred the New Emicizumab Treatment or the Old Hemophilia Treatment, or Without Treatment Preference, as Assessed by the EmiPref Questionnaire
    Description The EmiPref questionnaire asked participants to specify the treatment they would prefer to continue to receive after receiving treatment with their previous episodic or prophylactic regimen and subcutaneous (SC) emicizumab, or if they had no preference. The 95% confidence intervals were calculated for one sample binomial using the Pearson-Clopper method.
    Time Frame Month 3

    Outcome Measure Data

    Analysis Population Description
    The number of participants analyzed represents the total number who responded to this questionnaire.
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 179
    Prefer the New Study Drug Treatment (Emicizumab)
    96.6
    49.5%
    Prefer my Old Hemophilia Treatment
    0.6
    0.3%
    Have no Preference
    2.8
    1.4%
    47. Secondary Outcome
    Title Number and Percentage of Participants With Anti-Drug Antibodies (ADAs) Against Emicizumab at Anytime Post-Baseline
    Description 'Total ADA Negative' is the sum of all subjects who tested negative for ADA in the 2 following categories: 'ADA Negative', those who are pre-dose ADA negative or are missing pre-dose ADA data and who have all negative post-dose ADA results; and 'ADA Negative (Treatment Unaffected)', a subset who are pre-dose ADA positive but do not have a ≥4-fold increase in post-dose ADA levels compared to baseline measurement. 'Total ADA Positive' is the sum of all subjects who tested positive for ADA in the 2 following categories: 'ADA Positive (Treatment Boosted)', those who are pre-dose ADA positive and have a ≥4-fold increase in post-dose ADA levels compared to baseline measurement; and 'ADA Positive (Treatment Induced)', those who are pre-dose ADA negative or missing data and who have at least one post-dose ADA positive sample.
    Time Frame Baseline (Week 1), Week 5, and at 3, 6, 9, 12, and 18 months, and at early termination/study completion (up to 24 months)

    Outcome Measure Data

    Analysis Population Description
    Safety Population: all participants who received at least one dose of emicizumab. The number analyzed included participants with at least one baseline and one post-baseline assessments.
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 193
    Total ADA Negative (Neg + Neg Unaffected)
    183
    93.8%
    ADA Negative
    180
    92.3%
    ADA Negative (Treatment Unaffected)
    3
    1.5%
    Total ADA Positive (Boosted + Induced)
    10
    5.1%
    ADA Positive (Treatment Boosted)
    2
    1%
    ADA Positive (Treatment Induced)
    8
    4.1%
    48. Secondary Outcome
    Title Mean Trough Plasma Concentrations of Emicizumab at Specified Timepoints
    Description The trough concentration is a measure of the plasma concentration of a study drug at the end of of the dosage interval.
    Time Frame Pre-dose at Weeks 2, 3, and 5, Months 3, 6, 12, and 18, and at treatment discontinuation (up to 2 years)

    Outcome Measure Data

    Analysis Population Description
    Pharmacokinetic-Evaluable Population: all participants who received at least one dose of emicizumab and had at least one post-baseline emicizumab concentration result.
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    Measure Participants 193
    Week 2
    16.7
    (5.5)
    Week 3
    30.7
    (9.2)
    Week 5
    52.4
    (15.5)
    Month 3
    52.5
    (18.3)
    Month 6
    53.4
    (19.3)
    Month 12
    54.2
    (20.6)
    Month 18
    53.6
    (18.3)
    Treatment Discontinuation
    54.6
    (19.0)

    Adverse Events

    Time Frame From Baseline until study completion (up to 2 years)
    Adverse Event Reporting Description
    Arm/Group Title 1.5 mg/kg Emicizumab QW
    Arm/Group Description Participants were enrolled to receive initial weekly doses of prophylactic 3.0 mg/kg emicizumab subcutaneously (SC) for 4 weeks, followed by prophylactic maintenance doses consisting of 1.5 mg/kg emicizumab once a week (QW), administered SC for the remainder of the 2-year treatment period.
    All Cause Mortality
    1.5 mg/kg Emicizumab QW
    Affected / at Risk (%) # Events
    Total 2/193 (1%)
    Serious Adverse Events
    1.5 mg/kg Emicizumab QW
    Affected / at Risk (%) # Events
    Total 31/193 (16.1%)
    Blood and lymphatic system disorders
    THROMBOCYTOPENIA 1/193 (0.5%) 1
    Cardiac disorders
    ACUTE MYOCARDIAL INFARCTION 1/193 (0.5%) 1
    Gastrointestinal disorders
    ABDOMINAL COMPARTMENT SYNDROME 1/193 (0.5%) 1
    DIVERTICULUM INTESTINAL HAEMORRHAGIC 1/193 (0.5%) 1
    GASTROINTESTINAL HAEMORRHAGE 1/193 (0.5%) 5
    RETROPERITONEAL HAEMATOMA 1/193 (0.5%) 1
    Hepatobiliary disorders
    SUBCAPSULAR HEPATIC HAEMATOMA 1/193 (0.5%) 1
    Infections and infestations
    ABSCESS 1/193 (0.5%) 1
    APPENDICITIS 1/193 (0.5%) 1
    CATHETER SITE ABSCESS 2/193 (1%) 2
    DEVICE RELATED INFECTION 1/193 (0.5%) 1
    INFECTED SKIN ULCER 1/193 (0.5%) 1
    PNEUMONIA 1/193 (0.5%) 1
    WOUND INFECTION 1/193 (0.5%) 1
    Injury, poisoning and procedural complications
    FEMUR FRACTURE 2/193 (1%) 2
    FIBULA FRACTURE 1/193 (0.5%) 1
    FRACTURED SACRUM 1/193 (0.5%) 1
    HEAD INJURY 1/193 (0.5%) 1
    HIP FRACTURE 1/193 (0.5%) 1
    INJURY 1/193 (0.5%) 1
    JOINT INJURY 1/193 (0.5%) 1
    LOWER LIMB FRACTURE 1/193 (0.5%) 1
    MULTIPLE INJURIES 1/193 (0.5%) 1
    POST PROCEDURAL HAEMORRHAGE 1/193 (0.5%) 1
    TIBIA FRACTURE 1/193 (0.5%) 1
    WOUND DEHISCENCE 2/193 (1%) 2
    WOUND HAEMATOMA 1/193 (0.5%) 1
    Musculoskeletal and connective tissue disorders
    HAEMARTHROSIS 1/193 (0.5%) 1
    HAEMATOMA MUSCLE 2/193 (1%) 2
    Neoplasms benign, malignant and unspecified (incl cysts and polyps)
    ADENOCARCINOMA OF COLON 1/193 (0.5%) 1
    BLADDER NEOPLASM 1/193 (0.5%) 1
    Nervous system disorders
    GENERALISED TONIC-CLONIC SEIZURE 1/193 (0.5%) 1
    TENSION HEADACHE 1/193 (0.5%) 1
    Product Issues
    DEVICE DISLOCATION 1/193 (0.5%) 1
    Renal and urinary disorders
    NEPHROTIC SYNDROME 1/193 (0.5%) 1
    RENAL PAIN 1/193 (0.5%) 1
    URETEROLITHIASIS 1/193 (0.5%) 1
    Respiratory, thoracic and mediastinal disorders
    EPISTAXIS 1/193 (0.5%) 1
    PNEUMONIA ASPIRATION 1/193 (0.5%) 1
    Surgical and medical procedures
    CENTRAL VENOUS CATHETER REMOVAL 1/193 (0.5%) 1
    Vascular disorders
    HAEMATOMA 1/193 (0.5%) 1
    HAEMORRHAGE 1/193 (0.5%) 1
    Other (Not Including Serious) Adverse Events
    1.5 mg/kg Emicizumab QW
    Affected / at Risk (%) # Events
    Total 104/193 (53.9%)
    General disorders
    INJECTION SITE REACTION 22/193 (11.4%) 29
    PYREXIA 21/193 (10.9%) 26
    Infections and infestations
    INFLUENZA 16/193 (8.3%) 25
    NASOPHARYNGITIS 30/193 (15.5%) 47
    Injury, poisoning and procedural complications
    FALL 12/193 (6.2%) 16
    LIMB INJURY 10/193 (5.2%) 12
    Musculoskeletal and connective tissue disorders
    ARTHRALGIA 33/193 (17.1%) 52
    Nervous system disorders
    HEADACHE 29/193 (15%) 52
    Respiratory, thoracic and mediastinal disorders
    COUGH 12/193 (6.2%) 13

    Limitations/Caveats

    [Not Specified]

    More Information

    Certain Agreements

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

    The study being conducted under this agreement is part of the overall study. Investigator is free to publish in reputable journals or to present at professional conferences the results of the study, but only after the first publication or presentation that involves the overall study. The Sponsor may request that confidential information be deleted and/or the publication be postponed in order to protect the Sponsor's intellectual property rights.

    Results Point of Contact

    Name/Title Medical Communications
    Organization Hoffmann-La Roche
    Phone 800-821-8590
    Email genentech@druginfo.com
    Responsible Party:
    Hoffmann-La Roche
    ClinicalTrials.gov Identifier:
    NCT03191799
    Other Study ID Numbers:
    • MO39129
    • 2016-004366-25
    First Posted:
    Jun 19, 2017
    Last Update Posted:
    Jun 11, 2021
    Last Verified:
    May 1, 2021