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A Study to Evaluate the Efficacy, Safety, and Pharmacokinetics of Prophylactic Emicizumab Versus no Prophylaxis in Hemophilia A Participants With Inhibitors (HAVEN 1)

Primary Purpose

Hemophilia A

Status
Completed
Phase
Phase 3
Locations
International
Study Type
Interventional
Intervention
Emicizumab
rFVIIa
aPCC
Sponsored by
Hoffmann-La Roche
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Hemophilia A

Eligibility Criteria

12 Years - undefined (Child, Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  • Body weight >/= 40 kilograms (kg) at the time of screening
  • Diagnosis of congenital hemophilia A of any severity and documented history of high-titer inhibitor ( that is [i.e.], >/= 5 Bethesda Units [BU])
  • Documentation of treatment with episodic or prophylactic bypassing agents for at least the last 24 weeks
  • >/= 6 bleeds in the last 24 weeks prior to screening (if on an episodic bypassing agent regimen) or >/=2 bleeds in the last 24 weeks prior to screening (if on a prophylactic bypassing agent regimen)
  • Adequate hematologic, hepatic and renal function
  • For women who are not postmenopausal or surgically sterile: agreement to remain abstinent or use single or combined highly effective contraceptive methods

Exclusion Criteria:

  • Participants with inherited or acquired bleeding disorder other than hemophilia A
  • Participants with ongoing (or plan to receive during the study) immune tolerance induction therapy or prophylaxis with Factor VIII (FVIII), with the exception of participants who have received a treatment regimen of FVIII prophylaxis with concurrent bypassing agent prophylaxis
  • 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
  • Participants with other conditions (for example [e.g.], certain autoimmune diseases) that may increase the risk of bleeding or thrombosis
  • History of clinically significant hypersensitivity associated with monoclonal antibody therapies or components of the emicizumab injection
  • Known human immunodeficiency virus (HIV) infection with cluster of differentiation 4 (CD4) count < 200 cells per microliter (cells/mcL) within 24 weeks prior to screening
  • Use of systemic immunomodulators (e.g., interferon or rituximab) at enrolment or planned use during the study, with the exception of antiretroviral therapy
  • Participants who are at high risk for thrombotic microangiopathy (TMA; e.g., have a previous medical or family history of TMA), in the investigator's judgment
  • 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 participant's safe participation in and completion of the study or interpretation of the study results
  • Planned surgery (excluding minor procedures such as tooth extraction or incision and drainage) during the study
  • Receipt of emicizumab in a prior investigational study; An investigational drug to treat or reduce the risk of hemophilic bleeds within 5 half-lives of last drug administration; A non-hemophilia-related investigational drug within last 30 days or 5 half-lives, whichever is shorter; An investigational drug concurrently
  • Unwillingness to use highly effective contraception methods for the specified duration in the protocol (females only, unless required otherwise by the local health authority)
  • Clinically significant abnormality on screening evaluations or laboratory tests that, in the opinion of the investigator, may pose an additional risk in administering study drug to the participant
  • Pregnancy or lactation, or intent to become pregnant during the study

Sites / Locations

  • Children's Hospital Los Angeles
  • Santa Monica Oncology Center
  • University of Colorado Denver, Children's Hospital
  • Winship Cancer Institute
  • Boston Childrens Hospital
  • Children's Hospital of Michigan; Pediatrics
  • Cornell Univ Medical College; Hematology-Oncolog
  • Oregon Health & Science Uni ; Dept of Pediatrics
  • Pennsylvania State Hershey Medical Center; Division of Hematology/Oncology, H046
  • Univ of TX Health Science Ctr; Gulf States Hemo and Throm Ctr
  • Bloodworks Northwest (formerly Puget Sound Blood Center); Hemophilia
  • Royal Prince Alfred Hospital; Haematology
  • The Alfred Hospital, Melbourne; Thrombosis and Haemostasis Unit
  • ICIC
  • Hopital Cardio-vasculaire Louis Pradel; Hemostase clinique
  • CH de Bicetre; Centre de Traitement d' Hemophilie
  • Hopital Cardiologique; Hematologie B
  • Groupe Hospitalier Necker Enfants Malades
  • Universitätsklinikum Bonn; Institut für Experimentelle Hämatologie und Transfusionsmedizin
  • CTC North GmbH & Co. KG am Universitätsklinikum Hamburg-Eppendorf
  • Hämophilie-Zentrum Rhein Main GmbH
  • IRCCS Ca' Granda Ospedale Maggiore Policlinico; Centro Emofilia e Trombosi "Angelo Bianchi e Bonomi"
  • AOU Careggi; SOD Malattie Emorragiche
  • Nagoya University Hospital
  • Hiroshima University Hospital
  • Hyogo College of Medicine Hospital
  • St. Marianna University School of Medicine Hospital
  • Hospital of the University of Occupational and Environmental Health,Japan
  • Nara Medical University Hospital
  • Tokyo Medical University Hospital
  • Severance Hospital
  • Auckland City Hospital; Auckland Haemophilia Centre
  • Uniwersyteckie Centrum Kliniczne; Klinika Hematologii i Transplantologii
  • SPSK Nr1 Klinika Hematoo&Transpl.Szpiku
  • ALVAMED Lekarskie Gabinety Specjalistyczne
  • Instytut Hematologii i Transfuzjologii; Klinika Zaburzeń Hemostazy i Chorób Wewnętrznych
  • Charlotte Maxeke Johannesburg Hospital; Haemophilia Comprehensive Care Center
  • Hospital Universitario la Paz; Servicio de Hematologia
  • Hospital Universitario Virgen del Rocio; Servicio de Hematologia
  • Hospital Universitario la Fe; Servicio de Hematologia
  • National Taiwan Uni Hospital
  • Cardiff and Vale NHS Trust
  • St Thomas' Hospital; Haemostasis & Thromboisis Centre
  • Oxford University Hospitals NHS Trust - Churchill Hospital

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm 4

Arm Type

Experimental

Active Comparator

Experimental

Experimental

Arm Label

Arm A: 1.5 mg/kg Emicizumab QW

Arm B (Control): No Prophylaxis, Then Emicizumab

Arm C: 1.5 mg/kg Emicizumab QW

Arm D: 1.5 mg/kg Emicizumab QW

Arm Description

Participants who were receiving episodic treatment with bypassing agents prior to study entry and were randomized to study Arm A started to receive emicizumab prophylaxis. Emicizumab was administered at a loading dose of 3 milligrams per kilogram (mg/kg) once a week (QW) subcutaneously (SC) for the first 4 weeks followed by a maintenance dose of 1.5 mg/kg emicizumab QW SC up to the end of study. Participants continued to receive bypassing agent therapy to treat any breakthrough bleeds.

Participants who were receiving episodic treatment with bypassing agents prior to study entry and were randomized to study Arm B continued with their prior episodic treatment regimen for the first 24 weeks of the study; they did not receive emicizumab prophylaxis during that time. After completing at least 24 weeks on study, participants in Arm B were allowed to switch to emicizumab prophylaxis (as described for Arm A) up to the end of study. Participants continued to receive bypassing agent therapy to treat any breakthrough bleeds.

Participants who were receiving prophylactic bypassing agents prior to study entry were enrolled in Arm C to receive prophylactic emicizumab. Emicizumab was administered at a loading dose of 3 mg/kg QW SC for the first 4 weeks followed by a maintenance dose of 1.5 mg/kg emicizumab QW SC up to the end of study. Participants continued to receive bypassing agent therapy to treat any breakthrough bleeds.

Participants who were either: 1) Receiving episodic bypassing agents prior to study entry but were unable to enroll in Arms A or B; or 2) Receiving bypassing agent prophylaxis prior to study entry but were unable to enroll in Arm C, were enrolled in Arm D to receive emicizumab prophylaxis. Emicizumab was administered at a loading dose of 3 mg/kg QW SC for the first 4 weeks followed by a maintenance dose of 1.5 mg/kg emicizumab QW SC up to the end of study. Participants continued to receive bypassing agent therapy to treat any breakthrough bleeds.

Outcomes

Primary Outcome Measures

Model-Based Annualized Bleed Rate (ABR) for Treated Bleeds, Arm A: Emicizumab Versus Arm B: No Prophylaxis
The number of treated bleeds over the efficacy period was assessed as an annualized bleed rate (ABR) using a negative binomial (NB) regression model, which accounts for different follow-up times. Treated bleeds were defined as a bleed that was directly followed by a hemophilia medication reported to be a "treatment for bleed". The 72-hour rule was implemented: two bleeds of the same type and at the same anatomical location were counted as one bleed if the second bleed occurred within 72 hours from the last treatment for the first bleed. Bleeds due to surgery/procedure were excluded. For participants whose dose was up-titrated, the efficacy period ended the day before the first day on the up-titrated dose.

Secondary Outcome Measures

Model-Based Annualized Bleed Rate (ABR) for All Bleeds, Arm A: Emicizumab Versus Arm B: No Prophylaxis
The number of all bleeds over the efficacy period was assessed as an annualized bleed rate (ABR) using a negative binomial (NB) regression model, which accounts for different follow-up times. All bleeds included both treated bleeds (with coagulation factors) and non-treated bleeds. The 72-hour rule was implemented: two bleeds of the same type and at the same anatomical location were counted as one bleed if the second bleed occurred within 72 hours from the last treatment for the first bleed. Bleeds due to surgery/procedure were excluded. For participants whose dose was up-titrated, the efficacy period ended the day before the first day on the up-titrated dose.
Intra-Participant Comparison of the Model-Based Annualized Bleed Rate (ABR) for All Bleeds in Arm A: Emicizumab Versus Previous Episodic Bypassing Agents
This was an intra-participant comparison of the annualized bleed rates (ABRs) for all bleeds in Arm A participants who had previously received episodic bypassing agents during the non-interventional study (NIS) BH29768 (NCT02476942) (Arm A NIS) prior to entry in this study versus emicizumab prophylaxis during this study (Arm A). The number of all bleeds over the efficacy period was assessed as an ABR using a negative binomial (NB) regression model, which accounts for different follow-up times. All bleeds included both treated bleeds (with coagulation factors) and non-treated bleeds. The 72-hour rule was implemented: two bleeds of the same type and at the same anatomical location were counted as one bleed if the second bleed occurred within 72 hours from the last treatment for the first bleed. Bleeds due to surgery/procedure were excluded. For participants whose dose was up-titrated, the efficacy period ended the day before the first day on the up-titrated dose.
Intra-Participant Comparison of the Model-Based Annualized Bleed Rate (ABR) for Treated Bleeds in Arm A: Emicizumab Versus Previous Episodic Bypassing Agents
This was an intra-participant comparison of the ABRs for treated bleeds in Arm A participants who had previously received episodic bypassing agents during the non-interventional study (NIS) BH29768 (NCT02476942) (Arm A NIS) prior to entry in this study versus emicizumab prophylaxis during this study (Arm A). The number of treated bleeds over the efficacy period was assessed as an ABR using a negative binomial (NB) regression model, which accounts for different follow-up times. Treated bleeds were defined as a bleed that was directly followed by a hemophilia medication reported to be a "treatment for bleed". The 72-hour rule was implemented: two bleeds of the same type and at the same anatomical location were counted as one bleed if the second bleed occurred within 72 hours from the last treatment for the first bleed. Bleeds due to surgery/procedure were excluded. For participants whose dose was up-titrated, efficacy period ended the day before the first day on the up-titrated dose.
Model-Based Annualized Bleed Rate (ABR) for Treated Joint Bleeds, Arm A: Emicizumab Versus Arm B: No Prophylaxis
The number of treated joint bleeds over the efficacy period was assessed as an ABR using a negative binomial (NB) regression model, which accounts for different follow-up times. Treated joint bleeds were defined as treated bleeds in a joint associated with unusual sensation (aura) in a joint, in combination with another symptom: swelling/warmth, pain/decreased range of motion (RoM), or difficulty moving the joint. Bleeds due to surgery/procedure were excluded.
Intra-Participant Comparison of the Model-Based Annualized Bleed Rate (ABR) for All Bleeds in Arm C: Emicizumab Versus Previous Prophylactic Bypassing Agents
This was an intra-participant comparison of the annualized bleed rates (ABRs) for all bleeds in Arm C participants who had previously received prophylactic bypassing agents during the non-interventional study (NIS) BH29768 (NCT02476942) (Arm C NIS) prior to entry in this study versus emicizumab prophylaxis during this study (Arm C). The number of all bleeds over the efficacy period was assessed as an ABR using a negative binomial (NB) regression model, which accounts for different follow-up times. All bleeds included both treated bleeds (with coagulation factors) and non-treated bleeds. The 72-hour rule was implemented: two bleeds of the same type and at the same anatomical location were counted as one bleed if the second bleed occurred within 72 hours from the last treatment for the first bleed. Bleeds due to surgery/procedure were excluded. For participants whose dose was up-titrated, the efficacy period ended the day before the first day on the up-titrated dose.
Intra-Participant Comparison of the Model-Based Annualized Bleed Rate (ABR) for Treated Bleeds in Arm C: Emicizumab Versus Previous Prophylactic Bypassing Agents
This was an intra-participant comparison of the ABRs for treated bleeds in Arm C participants who had previously received bypassing agent prophylaxis during the non-interventional study (NIS) BH29768 (NCT02476942) (Arm C NIS) prior to entry in this study versus emicizumab prophylaxis during this study (Arm C). The number of treated bleeds over the efficacy period was assessed as an ABR using a negative binomial (NB) regression model, which accounts for different follow-up times. Treated bleeds were defined as a bleed that was directly followed by a hemophilia medication reported to be a "treatment for bleed". The 72-hour rule was implemented: two bleeds of the same type and at the same anatomical location were counted as one bleed if the second bleed occurred within 72 hours from the last treatment for the first bleed. Bleeds due to surgery/procedure were excluded. For participants whose dose was up-titrated, efficacy period ended the day before the first day on the up-titrated dose.
Model-Based Annualized Bleed Rate (ABR) for Treated Spontaneous Bleeds, Arm A: Emicizumab Versus Arm B: No Prophylaxis
The number of treated spontaneous bleeds over the efficacy period was assessed as an annualized bleed rate (ABR) using a negative binomial (NB) regression model, which accounts for different follow-up times. Treated spontaneous bleeds were defined as treated (with coagulation factors) bleeds with no known contributing factor (e.g., trauma, surgery). The 72-hour rule was implemented: two bleeds of the same type and at the same anatomical location were counted as one bleed if the second bleed occurred within 72 hours from the last treatment for the first bleed. Bleeds due to surgery/procedure were excluded. For participants whose dose was up-titrated, the efficacy period ended the day before the first day on the up-titrated dose.
Model-Based Annualized Bleed Rate (ABR) for Treated Target Joint Bleeds, Arm A: Emicizumab Versus Arm B: No Prophylaxis
The number of treated target joint bleeds over the efficacy period was assessed as an annualized bleed rate (ABR) using a negative binomial (NB) regression model, which accounts for different follow-up times. Treated target joint bleeds included treated (with coagulation factors) joint bleeds in a target joint, defined as a joint in which greater than or equal to (>/=) 3 treated joint bleeds occurred during the last 24 weeks prior to study entry. The 72-hour rule was implemented: two bleeds of the same type and at the same anatomical location were counted as one bleed if the second bleed occurred within 72 hours from the last treatment for the first bleed. Bleeds due to surgery/procedure were excluded. For participants whose dose was up-titrated, the efficacy period ended the day before the first day on the up-titrated dose.
Mean Calculated Annualized Bleed Rates (ABR) for Treated Bleeds, All Bleeds, Treated Spontaneous Bleeds, Treated Joint Bleeds, and Treated Target Joint Bleeds, Arm A: Emicizumab Versus Arm B: No Prophylaxis
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: a bleed for which coagulation factors were administered. All bleeds included both treated and non-treated bleeds. Treated spontaneous bleeds: treated bleeds with no known contributing factor (e.g., trauma, surgery). Treated joint bleeds: treated bleeds in a joint associated with unusual sensation (aura) in a joint, in combination with another symptom: swelling/warmth, pain/decreased range of motion (RoM), or difficulty moving the joint. Treated target joint bleeds: treated joint bleeds in a target joint, defined as a joint in which greater than or equal to (>/=) 3 treated joint bleeds occurred during the last 24 weeks prior to study entry. For all types of bleeds: the 72-hour rule was implemented, and bleeds due to surgery/procedure and bleeds after up-titration were excluded.
Median Calculated Annualized Bleed Rates (ABR) for Treated Bleeds, All Bleeds, Treated Spontaneous Bleeds, Treated Joint Bleeds, and Treated Target Joint Bleeds, Arm A: Emicizumab Versus Arm B: No Prophylaxis
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: a bleed for which coagulation factors were administered. All bleeds included both treated and non-treated bleeds. Treated spontaneous bleeds: treated bleeds with no known contributing factor (e.g., trauma, surgery). Treated joint bleeds: treated bleeds in a joint associated with unusual sensation (aura) in a joint, in combination with another symptom: swelling/warmth, pain/decreased range of motion (RoM), or difficulty moving the joint. Treated target joint bleeds: treated joint bleeds in a target joint, defined as a joint in which greater than or equal to (>/=) 3 treated joint bleeds occurred during the last 24 weeks prior to study entry. For all types of bleeds: the 72-hour rule was implemented, and bleeds due to surgery/procedure and bleeds after up-titration were excluded.
Percentage of Participants With 0 Bleeds for Treated Bleeds, All Bleeds, Treated Spontaneous Bleeds, Treated Joint Bleeds, and Treated Target Joint Bleeds, Arm A: Emicizumab Versus Arm B: No Prophylaxis
Treated bleeds: a bleed for which coagulation factors were administered. All bleeds included both treated and non-treated bleeds. Treated spontaneous bleeds: treated bleeds with no known contributing factor (e.g., trauma, surgery). Treated joint bleeds: treated bleeds in a joint associated with unusual sensation (aura) in a joint, in combination with another symptom: swelling/warmth, pain/decreased range of motion (RoM), or difficulty moving the joint. Treated target joint bleeds: treated joint bleeds in a target joint, defined as a joint in which greater than or equal to (>/=) 3 treated joint bleeds occurred during the last 24 weeks prior to study entry. For all types of bleeds: the 72-hour rule was implemented, and bleeds due to surgery/procedure and bleeds after up-titration were excluded.
Hemophilia-Specific Quality of Life (Haem-A-QoL) Questionnaire Physical Health Score at Week 25 in Adult Participants (>/=18 Years Old), Arm A: Emicizumab Versus Arm B: No Prophylaxis
Haem-A-QoL questionnaire has been developed and used in hemophilia A participants. As a hemophilia-specific questionnaire, this measure assesses very specific aspects of dealing with hemophilia. This questionnaire consists of items pertaining to 10 domains specific to living with hemophilia. The 10 domains are: physical health, sports and leisure, school and work, dealing with hemophilia, family planning, feeling, relationships, treatment, view of yourself, and outlook for the future. The total score for each domain range from 0 to 100 with lower scores reflective of better quality of life. Physical Health domain score is reported (range 0 to 100, with lower scores reflective of better physical health).
Haem-A-QoL Questionnaire Total Score at Week 25 in Adult Participants (>/=18 Years Old), Arm A: Emicizumab Versus Arm B: No Prophylaxis
Haem-A-QoL questionnaire has been developed and used in hemophilia A participants. As a hemophilia-specific questionnaire, this measure assesses very specific aspects of dealing with hemophilia. This questionnaire consists of items pertaining to 10 domains specific to living with hemophilia. The 10 domains are: physical health, sports and leisure, school and work, dealing with hemophilia, family planning, feeling, relationships, treatment, view of yourself, and outlook for the future. The total score for each domain range from 0 to 100 with lower scores reflective of better quality of life. Haem-A-QoL Questionnaire Total Score is the average of the all domain scores and range from 0 to 100, with lower scores reflective of better quality of life.
European Quality of Life-5 Dimensions-5 Levels (EQ-5D-5L) Visual Analog Scale Score at Week 25, Arm A: Emicizumab Versus Arm B: No Prophylaxis
EQ-5D-5L is a standardized, participant-rated questionnaire to assess health-related quality of life. The EQ-5D-5L includes 2 components: the EQ-5D-5L health state profile (descriptive system) and the EQ-5D-5L Visual Analog Scale. The Visual Analogue Scale is designed to rate the participant's current health state on a scale from 0 to 100, where 0 represents the worst imaginable health state and 100 represents the best imaginable health state.
EQ-5D-5L Index Utility Score at Week 25, Arm A: Emicizumab Versus Arm B: No Prophylaxis
EQ-5D-5L is a standardized, participant-rated questionnaire to assess health-related quality of life. The EQ-5D-5L includes 2 components: the EQ-5D-5L health state profile (descriptive system) and the EQ-5D-5L Visual Analog Scale. The EQ-5D-5L health state profile is designed to record the participant's current health state in 5 domains: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. Responses from the five domains are used to calculate a single utility index value ranging from 1 to 5, where 1 indicates better health state (no problems) and 5 indicates worst health state (confined to bed).
Hemophilia-Specific Quality of Life - Short Form (Haemo-Qol-SF) Questionnaire Total Score at Baseline and Week 25 in Adolescent Participants (12-17 Years Old)
The Haemo-QoL-SF contains 35 items, which cover nine domains considered relevant for the children's health-related quality of life (physical health, feelings, view of yourself, family, friends, other people, sports and school, dealing with hemophilia and treatment). Items are rated with five respective response options: never, seldom, sometimes, often, and always. Haemo-QoL-SF total score range from 0 to 100, where lower scores reflect better health-related quality of life. Baseline was defined as the last assessment prior to treatment. Because participants in Arm B switched from episodic bypassing agents to start receiving emicizumab prophylaxis after Week 24, the timepoints for Arm B (Emi) are expressed relative to first emicizumab dose; baseline for Arm B (Emi) is the same as Week 25 for Arm B (Control).
Long-Term Efficacy of Emicizumab: Model-Based Annualized Bleed Rates (ABR) for Treated Bleeds, All Bleeds, Treated Spontaneous Bleeds, Treated Joint Bleeds, and Treated Target Joint Bleeds, All Enrolled Participants
The number of bleeds over the efficacy period was assessed as an ABR using a negative binomial (NB) regression model, which accounts for different follow-up times. Treated bleeds: a bleed for which coagulation factors were administered. All bleeds included both treated and non-treated bleeds. Treated spontaneous bleeds: treated bleeds with no known contributing factor (e.g., trauma, surgery). Treated joint bleeds: treated bleeds in a joint associated with unusual sensation (aura) in a joint, in combination with another symptom: swelling/warmth, pain/decreased range of motion (RoM), or difficulty moving the joint. Treated target joint bleeds: treated joint bleeds in a target joint, defined as a joint in which greater than or equal to (>/=) 3 treated joint bleeds occurred during the last 24 weeks prior to study entry. For all types of bleeds: the 72-hour rule was implemented, and bleeds due to surgery/procedure and bleeds after up-titration were excluded.
Long-Term Efficacy of Emicizumab: Mean Calculated Annualized Bleed Rates (ABR) for Treated Bleeds, All Bleeds, Treated Spontaneous Bleeds, Treated Joint Bleeds, and Treated Target Joint Bleeds, All Enrolled Participants
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: a bleed for which coagulation factors were administered. All bleeds included both treated and non-treated bleeds. Treated spontaneous bleeds: treated bleeds with no known contributing factor (e.g., trauma, surgery). Treated joint bleeds: treated bleeds in a joint associated with unusual sensation (aura) in a joint, in combination with another symptom: swelling/warmth, pain/decreased range of motion (RoM), or difficulty moving the joint. Treated target joint bleeds: treated joint bleeds in a target joint, defined as a joint in which greater than or equal to (>/=) 3 treated joint bleeds occurred during the last 24 weeks prior to study entry. For all types of bleeds: the 72-hour rule was implemented, and bleeds due to surgery/procedure and bleeds after up-titration were excluded.
Long-Term Efficacy of Emicizumab: Median Calculated Annualized Bleed Rates (ABR) for Treated Bleeds, All Bleeds, Treated Spontaneous Bleeds, Treated Joint Bleeds, and Treated Target Joint Bleeds, All Enrolled Participants
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: a bleed for which coagulation factors were administered. All bleeds included both treated and non-treated bleeds. Treated spontaneous bleeds: treated bleeds with no known contributing factor (e.g., trauma, surgery). Treated joint bleeds: treated bleeds in a joint associated with unusual sensation (aura) in a joint, in combination with another symptom: swelling/warmth, pain/decreased range of motion (RoM), or difficulty moving the joint. Treated target joint bleeds: treated joint bleeds in a target joint, defined as a joint in which greater than or equal to (>/=) 3 treated joint bleeds occurred during the last 24 weeks prior to study entry. For all types of bleeds: the 72-hour rule was implemented, and bleeds due to surgery/procedure and bleeds after up-titration were excluded.
Long-Term Efficacy of Emicizumab: Mean Calculated Annualized Bleed Rates (ABR) for Treated Bleeds Per 12-Week Intervals Over Time, All Enrolled Participants
The number of treated bleeds over the efficacy period was calculated as: ABR = (number of bleeds/number of days during the efficacy period) x 365.25. Treated bleeds: a bleed for which coagulation factors were administered. The 72-hour rule was implemented: two bleeds of the same type and at the same anatomical location were counted as one bleed if the second bleed occurred within 72 hours from the last treatment for the first bleed. Bleeds due to surgery/procedure were excluded. For participants whose dose was up-titrated, the efficacy period ended the day before the first day on the up-titrated dose.
Long-Term Efficacy of Emicizumab: Median Calculated Annualized Bleed Rates (ABR) for Treated Bleeds Per 12-Week Intervals Over Time, All Enrolled Participants
The number of treated bleeds over the efficacy period was calculated as: ABR = (number of bleeds/number of days during the efficacy period) x 365.25. Treated bleeds: a bleed for which coagulation factors were administered. The 72-hour rule was implemented: two bleeds of the same type and at the same anatomical location were counted as one bleed if the second bleed occurred within 72 hours from the last treatment for the first bleed. Bleeds due to surgery/procedure were excluded. For participants whose dose was up-titrated, the efficacy period ended the day before the first day on the up-titrated dose.
Long-Term Efficacy of Emicizumab: Mean Calculated Annualized Bleed Rates (ABR) for All Bleeds Per 12-Week Intervals Over Time, All Enrolled Participants
The number of all bleeds over the efficacy period was calculated as: ABR = (number of bleeds/number of days during the efficacy period) x 365.25. All bleeds included both treated bleeds (with coagulation factors) and non-treated bleeds. The 72-hour rule was implemented: two bleeds of the same type and at the same anatomical location were counted as one bleed if the second bleed occurred within 72 hours from the last treatment for the first bleed. Bleeds due to surgery/procedure were excluded. For participants whose dose was up-titrated, the efficacy period ended the day before the first day on the up-titrated dose.
Long-Term Efficacy of Emicizumab: Median Calculated Annualized Bleed Rates (ABR) for All Bleeds Per 12-Week Intervals Over Time, All Enrolled Participants
The number of all bleeds over the efficacy period was calculated as: ABR = (number of bleeds/number of days during the efficacy period) x 365.25. All bleeds included both treated bleeds (with coagulation factors) and non-treated bleeds. The 72-hour rule was implemented: two bleeds of the same type and at the same anatomical location were counted as one bleed if the second bleed occurred within 72 hours from the last treatment for the first bleed. Bleeds due to surgery/procedure were excluded. For participants whose dose was up-titrated, the efficacy period ended the day before the first day on the up-titrated dose.
Long-Term Efficacy of Emicizumab: Mean Calculated Annualized Bleed Rates (ABR) for Treated Spontaneous Bleeds Per 12-Week Intervals Over Time, All Enrolled Participants
The number of treated spontaneous bleeds over the efficacy period was calculated as: ABR = (number of bleeds/number of days during the efficacy period) x 365.25. Treated spontaneous bleeds were defined as treated (with coagulation factors) bleeds with no known contributing factor (e.g., trauma, surgery). The 72-hour rule was implemented: two bleeds of the same type and at the same anatomical location were counted as one bleed if the second bleed occurred within 72 hours from the last treatment for the first bleed. Bleeds due to surgery/procedure were excluded. For participants whose dose was up-titrated, the efficacy period ended the day before the first day on the up-titrated dose.
Long-Term Efficacy of Emicizumab: Median Calculated Annualized Bleed Rates (ABR) for Treated Spontaneous Bleeds Per 12-Week Intervals Over Time, All Enrolled Participants
The number of treated spontaneous bleeds over the efficacy period was calculated as: ABR = (number of bleeds/number of days during the efficacy period) x 365.25. Treated spontaneous bleeds were defined as treated (with coagulation factors) bleeds with no known contributing factor (e.g., trauma, surgery). The 72-hour rule was implemented: two bleeds of the same type and at the same anatomical location were counted as one bleed if the second bleed occurred within 72 hours from the last treatment for the first bleed. Bleeds due to surgery/procedure were excluded. For participants whose dose was up-titrated, the efficacy period ended the day before the first day on the up-titrated dose.
Safety Summary of the Overall Number and Percentage of Participants With at Least One Adverse Event, Severity Assessed According to the WHO Toxicity Grading Scale
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. For participants whose emicizumab dose was up-titrated, only data before up-titration is included. aPCC = activated prothrombin complex concentrate; Hypersens.= hypersensitivity
Number of Participants Testing Negative or Positive for the Presence of Anti-Drug Antibodies (ADAs), Including Neutralizing ADAs, During the Study
'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. ADA-positive samples were further analyzed for neutralizing capacity using a modified FVIII chromogenic assay; if also positive, they were considered neutralizing ADAs.
Plasma Trough Concentrations of Emicizumab at Specified Timepoints
Plasma concentrations of emicizumab were analyzed using a validated Enzyme Linked Immunosorbent Assay (ELISA). The lower limit of quantification (LLOQ) was 100 nanograms per milliliter (ng/mL). Because participants in Arm B switched from episodic bypassing agents to start receiving emicizumab prophylaxis after Week 24, the timepoints for Arm B (Emi) are expressed relative to first emicizumab dose.

Full Information

First Posted
December 2, 2015
Last Updated
May 26, 2021
Sponsor
Hoffmann-La Roche
Collaborators
Chugai Pharmaceutical
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1. Study Identification

Unique Protocol Identification Number
NCT02622321
Brief Title
A Study to Evaluate the Efficacy, Safety, and Pharmacokinetics of Prophylactic Emicizumab Versus no Prophylaxis in Hemophilia A Participants With Inhibitors
Acronym
HAVEN 1
Official Title
A Randomized, Multicenter, Open-Label, Phase III Clinical Trial to Evaluate the Efficacy, Safety, and Pharmacokinetics of Prophylactic Emicizumab Versus no Prophylaxis in Hemophilia A Patients With Inhibitors
Study Type
Interventional

2. Study Status

Record Verification Date
May 2021
Overall Recruitment Status
Completed
Study Start Date
November 18, 2015 (Actual)
Primary Completion Date
October 25, 2016 (Actual)
Study Completion Date
December 1, 2020 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Hoffmann-La Roche
Collaborators
Chugai Pharmaceutical

4. Oversight

Studies a U.S. FDA-regulated Drug Product
Yes
Studies a U.S. FDA-regulated Device Product
No
Data Monitoring Committee
Yes

5. Study Description

Brief Summary
This multicenter, open-label study will evaluate the safety, efficacy and pharmacokinetics of prophylactic emicizumab treatment in participants previously treated with episodic or prophylactic bypassing agents. Episodic bypassing agent participants will be randomized in a 2:1 fashion to receive emicizumab prophylaxis (Arm A) versus no prophylaxis (Arm B) and will be stratified across Arms A and B according to the number of bleeds they experienced over the last 24 weeks prior to study entry (less than [<] 9 or greater than or equal to [>/=] 9 bleeds); Arm B participants will have the opportunity to switch to emicizumab prophylaxis after at least 24 weeks on-study. Prophylactic bypassing agent participants will switch to emicizumab prophylaxis (Arm C) from the start of the trial; enrollment will be extended for 24 weeks after the last participant has enrolled in Arms A or B or until approximately 50 participants have enrolled in Arm C, whichever occurs first. Episodic bypassing agent participants who previously participated in the non-interventional study BH29768 (NCT02476942) who were unable to enroll in Arms A or B, or participants on prophylactic bypassing agents who were unable to enroll in Arm C, prior to their closure will have the opportunity to enroll in Arm D. Like participants in Arms A and C, Arm D participants will receive emicizumab prophylaxis from the start of the trial. All participants will continue to receive episodic bypassing agent therapy to treat breakthrough bleeds, preferably with recombinant activated factor VII (rFVIIa).

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Hemophilia A

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 3
Interventional Study Model
Parallel Assignment
Masking
None (Open Label)
Allocation
Randomized
Enrollment
113 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Arm A: 1.5 mg/kg Emicizumab QW
Arm Type
Experimental
Arm Description
Participants who were receiving episodic treatment with bypassing agents prior to study entry and were randomized to study Arm A started to receive emicizumab prophylaxis. Emicizumab was administered at a loading dose of 3 milligrams per kilogram (mg/kg) once a week (QW) subcutaneously (SC) for the first 4 weeks followed by a maintenance dose of 1.5 mg/kg emicizumab QW SC up to the end of study. Participants continued to receive bypassing agent therapy to treat any breakthrough bleeds.
Arm Title
Arm B (Control): No Prophylaxis, Then Emicizumab
Arm Type
Active Comparator
Arm Description
Participants who were receiving episodic treatment with bypassing agents prior to study entry and were randomized to study Arm B continued with their prior episodic treatment regimen for the first 24 weeks of the study; they did not receive emicizumab prophylaxis during that time. After completing at least 24 weeks on study, participants in Arm B were allowed to switch to emicizumab prophylaxis (as described for Arm A) up to the end of study. Participants continued to receive bypassing agent therapy to treat any breakthrough bleeds.
Arm Title
Arm C: 1.5 mg/kg Emicizumab QW
Arm Type
Experimental
Arm Description
Participants who were receiving prophylactic bypassing agents prior to study entry were enrolled in Arm C to receive prophylactic emicizumab. Emicizumab was administered at a loading dose of 3 mg/kg QW SC for the first 4 weeks followed by a maintenance dose of 1.5 mg/kg emicizumab QW SC up to the end of study. Participants continued to receive bypassing agent therapy to treat any breakthrough bleeds.
Arm Title
Arm D: 1.5 mg/kg Emicizumab QW
Arm Type
Experimental
Arm Description
Participants who were either: 1) Receiving episodic bypassing agents prior to study entry but were unable to enroll in Arms A or B; or 2) Receiving bypassing agent prophylaxis prior to study entry but were unable to enroll in Arm C, were enrolled in Arm D to receive emicizumab prophylaxis. Emicizumab was administered at a loading dose of 3 mg/kg QW SC for the first 4 weeks followed by a maintenance dose of 1.5 mg/kg emicizumab QW SC up to the end of study. Participants continued to receive bypassing agent therapy to treat any breakthrough bleeds.
Intervention Type
Drug
Intervention Name(s)
Emicizumab
Other Intervention Name(s)
Hemlibra, RO5534262, RG6013, ACE910
Intervention Description
Emicizumab will be administered at a loading dose of 3 milligrams per kilogram per week (mg/kg/week) subcutaneously (SC) for the first 4 weeks followed by a maintenance dose of 1.5 mg/kg/week SC up to the end of study. After at least 24 weeks on prophylactic emicizumab, individuals who experience suboptimal bleeding control on emicizumab (according to protocol-defined criteria) will have the opportunity to increase their dose to 3 mg/kg weekly.
Intervention Type
Drug
Intervention Name(s)
rFVIIa
Other Intervention Name(s)
NovoSeven®
Intervention Description
Participants will continue to receive rFVIIa.
Intervention Type
Drug
Intervention Name(s)
aPCC
Other Intervention Name(s)
Factor Eight Inhibitor Bypassing Activity (FEIBA®)
Intervention Description
Participants will continue to receive aPCC.
Primary Outcome Measure Information:
Title
Model-Based Annualized Bleed Rate (ABR) for Treated Bleeds, Arm A: Emicizumab Versus Arm B: No Prophylaxis
Description
The number of treated bleeds over the efficacy period was assessed as an annualized bleed rate (ABR) using a negative binomial (NB) regression model, which accounts for different follow-up times. Treated bleeds were defined as a bleed that was directly followed by a hemophilia medication reported to be a "treatment for bleed". The 72-hour rule was implemented: two bleeds of the same type and at the same anatomical location were counted as one bleed if the second bleed occurred within 72 hours from the last treatment for the first bleed. Bleeds due to surgery/procedure were excluded. For participants whose dose was up-titrated, the efficacy period ended the day before the first day on the up-titrated dose.
Time Frame
From Baseline up to 24 weeks (median [min-max] efficacy observation periods in Arm A vs. Arm B: 29.29 [0.1-48.9] weeks vs. 24.14 [23.0-26.0] weeks)
Secondary Outcome Measure Information:
Title
Model-Based Annualized Bleed Rate (ABR) for All Bleeds, Arm A: Emicizumab Versus Arm B: No Prophylaxis
Description
The number of all bleeds over the efficacy period was assessed as an annualized bleed rate (ABR) using a negative binomial (NB) regression model, which accounts for different follow-up times. All bleeds included both treated bleeds (with coagulation factors) and non-treated bleeds. The 72-hour rule was implemented: two bleeds of the same type and at the same anatomical location were counted as one bleed if the second bleed occurred within 72 hours from the last treatment for the first bleed. Bleeds due to surgery/procedure were excluded. For participants whose dose was up-titrated, the efficacy period ended the day before the first day on the up-titrated dose.
Time Frame
From Baseline up to 24 weeks (median [min-max] efficacy observation periods in Arm A vs. Arm B: 29.29 [0.1-48.9] weeks vs. 24.14 [23.0-26.0] weeks)
Title
Intra-Participant Comparison of the Model-Based Annualized Bleed Rate (ABR) for All Bleeds in Arm A: Emicizumab Versus Previous Episodic Bypassing Agents
Description
This was an intra-participant comparison of the annualized bleed rates (ABRs) for all bleeds in Arm A participants who had previously received episodic bypassing agents during the non-interventional study (NIS) BH29768 (NCT02476942) (Arm A NIS) prior to entry in this study versus emicizumab prophylaxis during this study (Arm A). The number of all bleeds over the efficacy period was assessed as an ABR using a negative binomial (NB) regression model, which accounts for different follow-up times. All bleeds included both treated bleeds (with coagulation factors) and non-treated bleeds. The 72-hour rule was implemented: two bleeds of the same type and at the same anatomical location were counted as one bleed if the second bleed occurred within 72 hours from the last treatment for the first bleed. Bleeds due to surgery/procedure were excluded. For participants whose dose was up-titrated, the efficacy period ended the day before the first day on the up-titrated dose.
Time Frame
Median [min-max] efficacy observation periods: for Arm A, 1.5 mg/kg Emicizumab QW: 30.86 [0.1-48.9] weeks; for Arm A (NIS), Previous Episodic Bypassing Agents: 21.14 [10.6-33.9] weeks
Title
Intra-Participant Comparison of the Model-Based Annualized Bleed Rate (ABR) for Treated Bleeds in Arm A: Emicizumab Versus Previous Episodic Bypassing Agents
Description
This was an intra-participant comparison of the ABRs for treated bleeds in Arm A participants who had previously received episodic bypassing agents during the non-interventional study (NIS) BH29768 (NCT02476942) (Arm A NIS) prior to entry in this study versus emicizumab prophylaxis during this study (Arm A). The number of treated bleeds over the efficacy period was assessed as an ABR using a negative binomial (NB) regression model, which accounts for different follow-up times. Treated bleeds were defined as a bleed that was directly followed by a hemophilia medication reported to be a "treatment for bleed". The 72-hour rule was implemented: two bleeds of the same type and at the same anatomical location were counted as one bleed if the second bleed occurred within 72 hours from the last treatment for the first bleed. Bleeds due to surgery/procedure were excluded. For participants whose dose was up-titrated, efficacy period ended the day before the first day on the up-titrated dose.
Time Frame
Median [min-max] efficacy observation periods: for Arm A, 1.5 mg/kg Emicizumab QW: 30.86 [0.1-48.9] weeks; for Arm A (NIS), Previous Episodic Bypassing Agents: 21.14 [10.6-33.9] weeks
Title
Model-Based Annualized Bleed Rate (ABR) for Treated Joint Bleeds, Arm A: Emicizumab Versus Arm B: No Prophylaxis
Description
The number of treated joint bleeds over the efficacy period was assessed as an ABR using a negative binomial (NB) regression model, which accounts for different follow-up times. Treated joint bleeds were defined as treated bleeds in a joint associated with unusual sensation (aura) in a joint, in combination with another symptom: swelling/warmth, pain/decreased range of motion (RoM), or difficulty moving the joint. Bleeds due to surgery/procedure were excluded.
Time Frame
From Baseline up to 24 weeks (median [min-max] efficacy observation periods in Arm A vs. Arm B: 29.29 [0.1-48.9] weeks vs. 24.14 [23.0-26.0] weeks)
Title
Intra-Participant Comparison of the Model-Based Annualized Bleed Rate (ABR) for All Bleeds in Arm C: Emicizumab Versus Previous Prophylactic Bypassing Agents
Description
This was an intra-participant comparison of the annualized bleed rates (ABRs) for all bleeds in Arm C participants who had previously received prophylactic bypassing agents during the non-interventional study (NIS) BH29768 (NCT02476942) (Arm C NIS) prior to entry in this study versus emicizumab prophylaxis during this study (Arm C). The number of all bleeds over the efficacy period was assessed as an ABR using a negative binomial (NB) regression model, which accounts for different follow-up times. All bleeds included both treated bleeds (with coagulation factors) and non-treated bleeds. The 72-hour rule was implemented: two bleeds of the same type and at the same anatomical location were counted as one bleed if the second bleed occurred within 72 hours from the last treatment for the first bleed. Bleeds due to surgery/procedure were excluded. For participants whose dose was up-titrated, the efficacy period ended the day before the first day on the up-titrated dose.
Time Frame
Median [min-max] efficacy observation periods: for Arm C, 1.5 mg/kg Emicizumab QW: 30.14 [6.9-45.3] weeks; for Arm C (NIS), Previous Prophylactic Bypassing Agents: 32.14 [8.1-49.3] weeks
Title
Intra-Participant Comparison of the Model-Based Annualized Bleed Rate (ABR) for Treated Bleeds in Arm C: Emicizumab Versus Previous Prophylactic Bypassing Agents
Description
This was an intra-participant comparison of the ABRs for treated bleeds in Arm C participants who had previously received bypassing agent prophylaxis during the non-interventional study (NIS) BH29768 (NCT02476942) (Arm C NIS) prior to entry in this study versus emicizumab prophylaxis during this study (Arm C). The number of treated bleeds over the efficacy period was assessed as an ABR using a negative binomial (NB) regression model, which accounts for different follow-up times. Treated bleeds were defined as a bleed that was directly followed by a hemophilia medication reported to be a "treatment for bleed". The 72-hour rule was implemented: two bleeds of the same type and at the same anatomical location were counted as one bleed if the second bleed occurred within 72 hours from the last treatment for the first bleed. Bleeds due to surgery/procedure were excluded. For participants whose dose was up-titrated, efficacy period ended the day before the first day on the up-titrated dose.
Time Frame
Median [min-max] efficacy observation periods: for Arm C, 1.5 mg/kg Emicizumab QW: 30.14 [6.9-45.3] weeks; for Arm C (NIS), Previous Prophylactic Bypassing Agents: 32.14 [8.1-49.3] weeks
Title
Model-Based Annualized Bleed Rate (ABR) for Treated Spontaneous Bleeds, Arm A: Emicizumab Versus Arm B: No Prophylaxis
Description
The number of treated spontaneous bleeds over the efficacy period was assessed as an annualized bleed rate (ABR) using a negative binomial (NB) regression model, which accounts for different follow-up times. Treated spontaneous bleeds were defined as treated (with coagulation factors) bleeds with no known contributing factor (e.g., trauma, surgery). The 72-hour rule was implemented: two bleeds of the same type and at the same anatomical location were counted as one bleed if the second bleed occurred within 72 hours from the last treatment for the first bleed. Bleeds due to surgery/procedure were excluded. For participants whose dose was up-titrated, the efficacy period ended the day before the first day on the up-titrated dose.
Time Frame
From Baseline up to 24 weeks (median [min-max] efficacy observation periods in Arm A vs. Arm B: 29.29 [0.1-48.9] weeks vs. 24.14 [23.0-26.0] weeks)
Title
Model-Based Annualized Bleed Rate (ABR) for Treated Target Joint Bleeds, Arm A: Emicizumab Versus Arm B: No Prophylaxis
Description
The number of treated target joint bleeds over the efficacy period was assessed as an annualized bleed rate (ABR) using a negative binomial (NB) regression model, which accounts for different follow-up times. Treated target joint bleeds included treated (with coagulation factors) joint bleeds in a target joint, defined as a joint in which greater than or equal to (>/=) 3 treated joint bleeds occurred during the last 24 weeks prior to study entry. The 72-hour rule was implemented: two bleeds of the same type and at the same anatomical location were counted as one bleed if the second bleed occurred within 72 hours from the last treatment for the first bleed. Bleeds due to surgery/procedure were excluded. For participants whose dose was up-titrated, the efficacy period ended the day before the first day on the up-titrated dose.
Time Frame
From Baseline up to 24 weeks (median [min-max] efficacy observation periods in Arm A vs. Arm B: 29.29 [0.1-48.9] weeks vs. 24.14 [23.0-26.0] weeks)
Title
Mean Calculated Annualized Bleed Rates (ABR) for Treated Bleeds, All Bleeds, Treated Spontaneous Bleeds, Treated Joint Bleeds, and Treated Target Joint Bleeds, Arm A: Emicizumab Versus Arm B: No Prophylaxis
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: a bleed for which coagulation factors were administered. All bleeds included both treated and non-treated bleeds. Treated spontaneous bleeds: treated bleeds with no known contributing factor (e.g., trauma, surgery). Treated joint bleeds: treated bleeds in a joint associated with unusual sensation (aura) in a joint, in combination with another symptom: swelling/warmth, pain/decreased range of motion (RoM), or difficulty moving the joint. Treated target joint bleeds: treated joint bleeds in a target joint, defined as a joint in which greater than or equal to (>/=) 3 treated joint bleeds occurred during the last 24 weeks prior to study entry. For all types of bleeds: the 72-hour rule was implemented, and bleeds due to surgery/procedure and bleeds after up-titration were excluded.
Time Frame
From Baseline up to 24 weeks (median [min-max] efficacy observation periods in Arm A vs. Arm B: 29.29 [0.1-48.9] weeks vs. 24.14 [23.0-26.0] weeks)
Title
Median Calculated Annualized Bleed Rates (ABR) for Treated Bleeds, All Bleeds, Treated Spontaneous Bleeds, Treated Joint Bleeds, and Treated Target Joint Bleeds, Arm A: Emicizumab Versus Arm B: No Prophylaxis
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: a bleed for which coagulation factors were administered. All bleeds included both treated and non-treated bleeds. Treated spontaneous bleeds: treated bleeds with no known contributing factor (e.g., trauma, surgery). Treated joint bleeds: treated bleeds in a joint associated with unusual sensation (aura) in a joint, in combination with another symptom: swelling/warmth, pain/decreased range of motion (RoM), or difficulty moving the joint. Treated target joint bleeds: treated joint bleeds in a target joint, defined as a joint in which greater than or equal to (>/=) 3 treated joint bleeds occurred during the last 24 weeks prior to study entry. For all types of bleeds: the 72-hour rule was implemented, and bleeds due to surgery/procedure and bleeds after up-titration were excluded.
Time Frame
From Baseline up to 24 weeks (median [min-max] efficacy observation periods in Arm A vs. Arm B: 29.29 [0.1-48.9] weeks vs. 24.14 [23.0-26.0] weeks)
Title
Percentage of Participants With 0 Bleeds for Treated Bleeds, All Bleeds, Treated Spontaneous Bleeds, Treated Joint Bleeds, and Treated Target Joint Bleeds, Arm A: Emicizumab Versus Arm B: No Prophylaxis
Description
Treated bleeds: a bleed for which coagulation factors were administered. All bleeds included both treated and non-treated bleeds. Treated spontaneous bleeds: treated bleeds with no known contributing factor (e.g., trauma, surgery). Treated joint bleeds: treated bleeds in a joint associated with unusual sensation (aura) in a joint, in combination with another symptom: swelling/warmth, pain/decreased range of motion (RoM), or difficulty moving the joint. Treated target joint bleeds: treated joint bleeds in a target joint, defined as a joint in which greater than or equal to (>/=) 3 treated joint bleeds occurred during the last 24 weeks prior to study entry. For all types of bleeds: the 72-hour rule was implemented, and bleeds due to surgery/procedure and bleeds after up-titration were excluded.
Time Frame
From Baseline up to 24 weeks (median [min-max] efficacy observation periods in Arm A vs. Arm B: 29.29 [0.1-48.9] weeks vs. 24.14 [23.0-26.0] weeks)
Title
Hemophilia-Specific Quality of Life (Haem-A-QoL) Questionnaire Physical Health Score at Week 25 in Adult Participants (>/=18 Years Old), Arm A: Emicizumab Versus Arm B: No Prophylaxis
Description
Haem-A-QoL questionnaire has been developed and used in hemophilia A participants. As a hemophilia-specific questionnaire, this measure assesses very specific aspects of dealing with hemophilia. This questionnaire consists of items pertaining to 10 domains specific to living with hemophilia. The 10 domains are: physical health, sports and leisure, school and work, dealing with hemophilia, family planning, feeling, relationships, treatment, view of yourself, and outlook for the future. The total score for each domain range from 0 to 100 with lower scores reflective of better quality of life. Physical Health domain score is reported (range 0 to 100, with lower scores reflective of better physical health).
Time Frame
Week 25
Title
Haem-A-QoL Questionnaire Total Score at Week 25 in Adult Participants (>/=18 Years Old), Arm A: Emicizumab Versus Arm B: No Prophylaxis
Description
Haem-A-QoL questionnaire has been developed and used in hemophilia A participants. As a hemophilia-specific questionnaire, this measure assesses very specific aspects of dealing with hemophilia. This questionnaire consists of items pertaining to 10 domains specific to living with hemophilia. The 10 domains are: physical health, sports and leisure, school and work, dealing with hemophilia, family planning, feeling, relationships, treatment, view of yourself, and outlook for the future. The total score for each domain range from 0 to 100 with lower scores reflective of better quality of life. Haem-A-QoL Questionnaire Total Score is the average of the all domain scores and range from 0 to 100, with lower scores reflective of better quality of life.
Time Frame
Week 25
Title
European Quality of Life-5 Dimensions-5 Levels (EQ-5D-5L) Visual Analog Scale Score at Week 25, Arm A: Emicizumab Versus Arm B: No Prophylaxis
Description
EQ-5D-5L is a standardized, participant-rated questionnaire to assess health-related quality of life. The EQ-5D-5L includes 2 components: the EQ-5D-5L health state profile (descriptive system) and the EQ-5D-5L Visual Analog Scale. The Visual Analogue Scale is designed to rate the participant's current health state on a scale from 0 to 100, where 0 represents the worst imaginable health state and 100 represents the best imaginable health state.
Time Frame
Week 25
Title
EQ-5D-5L Index Utility Score at Week 25, Arm A: Emicizumab Versus Arm B: No Prophylaxis
Description
EQ-5D-5L is a standardized, participant-rated questionnaire to assess health-related quality of life. The EQ-5D-5L includes 2 components: the EQ-5D-5L health state profile (descriptive system) and the EQ-5D-5L Visual Analog Scale. The EQ-5D-5L health state profile is designed to record the participant's current health state in 5 domains: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. Responses from the five domains are used to calculate a single utility index value ranging from 1 to 5, where 1 indicates better health state (no problems) and 5 indicates worst health state (confined to bed).
Time Frame
Week 25
Title
Hemophilia-Specific Quality of Life - Short Form (Haemo-Qol-SF) Questionnaire Total Score at Baseline and Week 25 in Adolescent Participants (12-17 Years Old)
Description
The Haemo-QoL-SF contains 35 items, which cover nine domains considered relevant for the children's health-related quality of life (physical health, feelings, view of yourself, family, friends, other people, sports and school, dealing with hemophilia and treatment). Items are rated with five respective response options: never, seldom, sometimes, often, and always. Haemo-QoL-SF total score range from 0 to 100, where lower scores reflect better health-related quality of life. Baseline was defined as the last assessment prior to treatment. Because participants in Arm B switched from episodic bypassing agents to start receiving emicizumab prophylaxis after Week 24, the timepoints for Arm B (Emi) are expressed relative to first emicizumab dose; baseline for Arm B (Emi) is the same as Week 25 for Arm B (Control).
Time Frame
Baseline and Week 25 (for Arm B (Emi), Study Weeks are relative to first emicizumab dose)
Title
Long-Term Efficacy of Emicizumab: Model-Based Annualized Bleed Rates (ABR) for Treated Bleeds, All Bleeds, Treated Spontaneous Bleeds, Treated Joint Bleeds, and Treated Target Joint Bleeds, All Enrolled Participants
Description
The number of bleeds over the efficacy period was assessed as an ABR using a negative binomial (NB) regression model, which accounts for different follow-up times. Treated bleeds: a bleed for which coagulation factors were administered. All bleeds included both treated and non-treated bleeds. Treated spontaneous bleeds: treated bleeds with no known contributing factor (e.g., trauma, surgery). Treated joint bleeds: treated bleeds in a joint associated with unusual sensation (aura) in a joint, in combination with another symptom: swelling/warmth, pain/decreased range of motion (RoM), or difficulty moving the joint. Treated target joint bleeds: treated joint bleeds in a target joint, defined as a joint in which greater than or equal to (>/=) 3 treated joint bleeds occurred during the last 24 weeks prior to study entry. For all types of bleeds: the 72-hour rule was implemented, and bleeds due to surgery/procedure and bleeds after up-titration were excluded.
Time Frame
From start of emicizumab treatment to study completion (median [min-max] efficacy observation period for all participants: 109.29 [0.1-249.1] weeks)
Title
Long-Term Efficacy of Emicizumab: Mean Calculated Annualized Bleed Rates (ABR) for Treated Bleeds, All Bleeds, Treated Spontaneous Bleeds, Treated Joint Bleeds, and Treated Target Joint Bleeds, All Enrolled Participants
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: a bleed for which coagulation factors were administered. All bleeds included both treated and non-treated bleeds. Treated spontaneous bleeds: treated bleeds with no known contributing factor (e.g., trauma, surgery). Treated joint bleeds: treated bleeds in a joint associated with unusual sensation (aura) in a joint, in combination with another symptom: swelling/warmth, pain/decreased range of motion (RoM), or difficulty moving the joint. Treated target joint bleeds: treated joint bleeds in a target joint, defined as a joint in which greater than or equal to (>/=) 3 treated joint bleeds occurred during the last 24 weeks prior to study entry. For all types of bleeds: the 72-hour rule was implemented, and bleeds due to surgery/procedure and bleeds after up-titration were excluded.
Time Frame
From start of emicizumab treatment to study completion (median [min-max] efficacy observation period for all participants: 109.29 [0.1-249.1] weeks)
Title
Long-Term Efficacy of Emicizumab: Median Calculated Annualized Bleed Rates (ABR) for Treated Bleeds, All Bleeds, Treated Spontaneous Bleeds, Treated Joint Bleeds, and Treated Target Joint Bleeds, All Enrolled Participants
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: a bleed for which coagulation factors were administered. All bleeds included both treated and non-treated bleeds. Treated spontaneous bleeds: treated bleeds with no known contributing factor (e.g., trauma, surgery). Treated joint bleeds: treated bleeds in a joint associated with unusual sensation (aura) in a joint, in combination with another symptom: swelling/warmth, pain/decreased range of motion (RoM), or difficulty moving the joint. Treated target joint bleeds: treated joint bleeds in a target joint, defined as a joint in which greater than or equal to (>/=) 3 treated joint bleeds occurred during the last 24 weeks prior to study entry. For all types of bleeds: the 72-hour rule was implemented, and bleeds due to surgery/procedure and bleeds after up-titration were excluded.
Time Frame
From start of emicizumab treatment to study completion (median [min-max] efficacy observation period for all participants: 109.29 [0.1-249.1] weeks)
Title
Long-Term Efficacy of Emicizumab: Mean Calculated Annualized Bleed Rates (ABR) for Treated Bleeds Per 12-Week Intervals Over Time, All Enrolled Participants
Description
The number of treated bleeds over the efficacy period was calculated as: ABR = (number of bleeds/number of days during the efficacy period) x 365.25. Treated bleeds: a bleed for which coagulation factors were administered. The 72-hour rule was implemented: two bleeds of the same type and at the same anatomical location were counted as one bleed if the second bleed occurred within 72 hours from the last treatment for the first bleed. Bleeds due to surgery/procedure were excluded. For participants whose dose was up-titrated, the efficacy period ended the day before the first day on the up-titrated dose.
Time Frame
1-12, 13-24, 25-36, 37-48, 49-60, 61-72, 73-84, 85-96, 97-108, 109-120, 121-132, 133-144, 145-156, 157-168, 169-180, 181-192, 193-204, 205-216, 217-228, and 229-240 weeks
Title
Long-Term Efficacy of Emicizumab: Median Calculated Annualized Bleed Rates (ABR) for Treated Bleeds Per 12-Week Intervals Over Time, All Enrolled Participants
Description
The number of treated bleeds over the efficacy period was calculated as: ABR = (number of bleeds/number of days during the efficacy period) x 365.25. Treated bleeds: a bleed for which coagulation factors were administered. The 72-hour rule was implemented: two bleeds of the same type and at the same anatomical location were counted as one bleed if the second bleed occurred within 72 hours from the last treatment for the first bleed. Bleeds due to surgery/procedure were excluded. For participants whose dose was up-titrated, the efficacy period ended the day before the first day on the up-titrated dose.
Time Frame
1-12, 13-24, 25-36, 37-48, 49-60, 61-72, 73-84, 85-96, 97-108, 109-120, 121-132, 133-144, 145-156, 157-168, 169-180, 181-192, 193-204, 205-216, 217-228, and 229-240 weeks
Title
Long-Term Efficacy of Emicizumab: Mean Calculated Annualized Bleed Rates (ABR) for All Bleeds Per 12-Week Intervals Over Time, All Enrolled Participants
Description
The number of all bleeds over the efficacy period was calculated as: ABR = (number of bleeds/number of days during the efficacy period) x 365.25. All bleeds included both treated bleeds (with coagulation factors) and non-treated bleeds. The 72-hour rule was implemented: two bleeds of the same type and at the same anatomical location were counted as one bleed if the second bleed occurred within 72 hours from the last treatment for the first bleed. Bleeds due to surgery/procedure were excluded. For participants whose dose was up-titrated, the efficacy period ended the day before the first day on the up-titrated dose.
Time Frame
1-12, 13-24, 25-36, 37-48, 49-60, 61-72, 73-84, 85-96, 97-108, 109-120, 121-132, 133-144, 145-156, 157-168, 169-180, 181-192, 193-204, 205-216, 217-228, and 229-240 weeks
Title
Long-Term Efficacy of Emicizumab: Median Calculated Annualized Bleed Rates (ABR) for All Bleeds Per 12-Week Intervals Over Time, All Enrolled Participants
Description
The number of all bleeds over the efficacy period was calculated as: ABR = (number of bleeds/number of days during the efficacy period) x 365.25. All bleeds included both treated bleeds (with coagulation factors) and non-treated bleeds. The 72-hour rule was implemented: two bleeds of the same type and at the same anatomical location were counted as one bleed if the second bleed occurred within 72 hours from the last treatment for the first bleed. Bleeds due to surgery/procedure were excluded. For participants whose dose was up-titrated, the efficacy period ended the day before the first day on the up-titrated dose.
Time Frame
1-12, 13-24, 25-36, 37-48, 49-60, 61-72, 73-84, 85-96, 97-108, 109-120, 121-132, 133-144, 145-156, 157-168, 169-180, 181-192, 193-204, 205-216, 217-228, and 229-240 weeks
Title
Long-Term Efficacy of Emicizumab: Mean Calculated Annualized Bleed Rates (ABR) for Treated Spontaneous Bleeds Per 12-Week Intervals Over Time, All Enrolled Participants
Description
The number of treated spontaneous bleeds over the efficacy period was calculated as: ABR = (number of bleeds/number of days during the efficacy period) x 365.25. Treated spontaneous bleeds were defined as treated (with coagulation factors) bleeds with no known contributing factor (e.g., trauma, surgery). The 72-hour rule was implemented: two bleeds of the same type and at the same anatomical location were counted as one bleed if the second bleed occurred within 72 hours from the last treatment for the first bleed. Bleeds due to surgery/procedure were excluded. For participants whose dose was up-titrated, the efficacy period ended the day before the first day on the up-titrated dose.
Time Frame
1-12, 13-24, 25-36, 37-48, 49-60, 61-72, 73-84, 85-96, 97-108, 109-120, 121-132, 133-144, 145-156, 157-168, 169-180, 181-192, 193-204, 205-216, 217-228, and 229-240 weeks
Title
Long-Term Efficacy of Emicizumab: Median Calculated Annualized Bleed Rates (ABR) for Treated Spontaneous Bleeds Per 12-Week Intervals Over Time, All Enrolled Participants
Description
The number of treated spontaneous bleeds over the efficacy period was calculated as: ABR = (number of bleeds/number of days during the efficacy period) x 365.25. Treated spontaneous bleeds were defined as treated (with coagulation factors) bleeds with no known contributing factor (e.g., trauma, surgery). The 72-hour rule was implemented: two bleeds of the same type and at the same anatomical location were counted as one bleed if the second bleed occurred within 72 hours from the last treatment for the first bleed. Bleeds due to surgery/procedure were excluded. For participants whose dose was up-titrated, the efficacy period ended the day before the first day on the up-titrated dose.
Time Frame
1-12, 13-24, 25-36, 37-48, 49-60, 61-72, 73-84, 85-96, 97-108, 109-120, 121-132, 133-144, 145-156, 157-168, 169-180, 181-192, 193-204, 205-216, 217-228, and 229-240 weeks
Title
Safety Summary of the Overall Number and Percentage of Participants With at Least One Adverse Event, Severity Assessed According to the 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. For participants whose emicizumab dose was up-titrated, only data before up-titration is included. aPCC = activated prothrombin complex concentrate; Hypersens.= hypersensitivity
Time Frame
From Baseline until study completion (median [min-max] safety observation period for all participants: 133.97 [0.1-249.1] weeks)
Title
Number of Participants Testing Negative or Positive for the Presence of Anti-Drug Antibodies (ADAs), Including Neutralizing ADAs, During the Study
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. ADA-positive samples were further analyzed for neutralizing capacity using a modified FVIII chromogenic assay; if also positive, they were considered neutralizing ADAs.
Time Frame
From Baseline until study completion (median [min-max] safety observation period for all participants: 133.97 [0.1-249.1] weeks)
Title
Plasma Trough Concentrations of Emicizumab at Specified Timepoints
Description
Plasma concentrations of emicizumab were analyzed using a validated Enzyme Linked Immunosorbent Assay (ELISA). The lower limit of quantification (LLOQ) was 100 nanograms per milliliter (ng/mL). Because participants in Arm B switched from episodic bypassing agents to start receiving emicizumab prophylaxis after Week 24, the timepoints for Arm B (Emi) are expressed relative to first emicizumab dose.
Time Frame
Pre-dose (0 hour [hr]) on Weeks 1-5, 7, 9, 13, 17, 21, 25, 33, 41, 49, 61, 73, 85, 97, 109, 121, 133, 145, 157, and 169 (For Arm B (Emi), Study Weeks are relative to first emicizumab dose)

10. Eligibility

Sex
All
Minimum Age & Unit of Time
12 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Body weight >/= 40 kilograms (kg) at the time of screening Diagnosis of congenital hemophilia A of any severity and documented history of high-titer inhibitor ( that is [i.e.], >/= 5 Bethesda Units [BU]) Documentation of treatment with episodic or prophylactic bypassing agents for at least the last 24 weeks >/= 6 bleeds in the last 24 weeks prior to screening (if on an episodic bypassing agent regimen) or >/=2 bleeds in the last 24 weeks prior to screening (if on a prophylactic bypassing agent regimen) Adequate hematologic, hepatic and renal function For women who are not postmenopausal or surgically sterile: agreement to remain abstinent or use single or combined highly effective contraceptive methods Exclusion Criteria: Participants with inherited or acquired bleeding disorder other than hemophilia A Participants with ongoing (or plan to receive during the study) immune tolerance induction therapy or prophylaxis with Factor VIII (FVIII), with the exception of participants who have received a treatment regimen of FVIII prophylaxis with concurrent bypassing agent prophylaxis 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 Participants with other conditions (for example [e.g.], certain autoimmune diseases) that may increase the risk of bleeding or thrombosis History of clinically significant hypersensitivity associated with monoclonal antibody therapies or components of the emicizumab injection Known human immunodeficiency virus (HIV) infection with cluster of differentiation 4 (CD4) count < 200 cells per microliter (cells/mcL) within 24 weeks prior to screening Use of systemic immunomodulators (e.g., interferon or rituximab) at enrolment or planned use during the study, with the exception of antiretroviral therapy Participants who are at high risk for thrombotic microangiopathy (TMA; e.g., have a previous medical or family history of TMA), in the investigator's judgment 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 participant's safe participation in and completion of the study or interpretation of the study results Planned surgery (excluding minor procedures such as tooth extraction or incision and drainage) during the study Receipt of emicizumab in a prior investigational study; An investigational drug to treat or reduce the risk of hemophilic bleeds within 5 half-lives of last drug administration; A non-hemophilia-related investigational drug within last 30 days or 5 half-lives, whichever is shorter; An investigational drug concurrently Unwillingness to use highly effective contraception methods for the specified duration in the protocol (females only, unless required otherwise by the local health authority) Clinically significant abnormality on screening evaluations or laboratory tests that, in the opinion of the investigator, may pose an additional risk in administering study drug to the participant Pregnancy or lactation, or intent to become pregnant during the study
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Clinical Trials
Organizational Affiliation
Hoffmann-La Roche
Official's Role
Study Director
Facility Information:
Facility Name
Children's Hospital Los Angeles
City
Los Angeles
State/Province
California
ZIP/Postal Code
90010
Country
United States
Facility Name
Santa Monica Oncology Center
City
Santa Monica
State/Province
California
ZIP/Postal Code
90403
Country
United States
Facility Name
University of Colorado Denver, Children's Hospital
City
Aurora
State/Province
Colorado
ZIP/Postal Code
80045
Country
United States
Facility Name
Winship Cancer Institute
City
Atlanta
State/Province
Georgia
ZIP/Postal Code
30322
Country
United States
Facility Name
Boston Childrens Hospital
City
Boston
State/Province
Massachusetts
ZIP/Postal Code
02115
Country
United States
Facility Name
Children's Hospital of Michigan; Pediatrics
City
Detroit
State/Province
Michigan
ZIP/Postal Code
48201
Country
United States
Facility Name
Cornell Univ Medical College; Hematology-Oncolog
City
New York
State/Province
New York
ZIP/Postal Code
10021
Country
United States
Facility Name
Oregon Health & Science Uni ; Dept of Pediatrics
City
Portland
State/Province
Oregon
ZIP/Postal Code
97201
Country
United States
Facility Name
Pennsylvania State Hershey Medical Center; Division of Hematology/Oncology, H046
City
Hershey
State/Province
Pennsylvania
ZIP/Postal Code
17033-0850
Country
United States
Facility Name
Univ of TX Health Science Ctr; Gulf States Hemo and Throm Ctr
City
Houston
State/Province
Texas
ZIP/Postal Code
77030
Country
United States
Facility Name
Bloodworks Northwest (formerly Puget Sound Blood Center); Hemophilia
City
Seattle
State/Province
Washington
ZIP/Postal Code
98104
Country
United States
Facility Name
Royal Prince Alfred Hospital; Haematology
City
Camperdown
State/Province
New South Wales
ZIP/Postal Code
2050
Country
Australia
Facility Name
The Alfred Hospital, Melbourne; Thrombosis and Haemostasis Unit
City
Melbourne
State/Province
Victoria
ZIP/Postal Code
3004
Country
Australia
Facility Name
ICIC
City
San Jose
ZIP/Postal Code
1000
Country
Costa Rica
Facility Name
Hopital Cardio-vasculaire Louis Pradel; Hemostase clinique
City
Bron
ZIP/Postal Code
69677
Country
France
Facility Name
CH de Bicetre; Centre de Traitement d' Hemophilie
City
Le Kremlin Bicetre
ZIP/Postal Code
94275
Country
France
Facility Name
Hopital Cardiologique; Hematologie B
City
Lille
ZIP/Postal Code
59037
Country
France
Facility Name
Groupe Hospitalier Necker Enfants Malades
City
Paris
ZIP/Postal Code
75015
Country
France
Facility Name
Universitätsklinikum Bonn; Institut für Experimentelle Hämatologie und Transfusionsmedizin
City
Bonn
ZIP/Postal Code
53127
Country
Germany
Facility Name
CTC North GmbH & Co. KG am Universitätsklinikum Hamburg-Eppendorf
City
Hamburg
ZIP/Postal Code
20251
Country
Germany
Facility Name
Hämophilie-Zentrum Rhein Main GmbH
City
Mörfelden-Walldorf
ZIP/Postal Code
64546
Country
Germany
Facility Name
IRCCS Ca' Granda Ospedale Maggiore Policlinico; Centro Emofilia e Trombosi "Angelo Bianchi e Bonomi"
City
Milano
State/Province
Lombardia
ZIP/Postal Code
20122
Country
Italy
Facility Name
AOU Careggi; SOD Malattie Emorragiche
City
Firenze
State/Province
Toscana
ZIP/Postal Code
50134
Country
Italy
Facility Name
Nagoya University Hospital
City
Aichi
ZIP/Postal Code
466-8560
Country
Japan
Facility Name
Hiroshima University Hospital
City
Hiroshima
ZIP/Postal Code
734-8551
Country
Japan
Facility Name
Hyogo College of Medicine Hospital
City
Hyogo
ZIP/Postal Code
663-8501
Country
Japan
Facility Name
St. Marianna University School of Medicine Hospital
City
Kanagawa
ZIP/Postal Code
216-8511
Country
Japan
Facility Name
Hospital of the University of Occupational and Environmental Health,Japan
City
Kitakyushu-shi
ZIP/Postal Code
807-8556
Country
Japan
Facility Name
Nara Medical University Hospital
City
Nara
ZIP/Postal Code
634-8522
Country
Japan
Facility Name
Tokyo Medical University Hospital
City
Tokyo
ZIP/Postal Code
160-0023
Country
Japan
Facility Name
Severance Hospital
City
Seoul
ZIP/Postal Code
03722
Country
Korea, Republic of
Facility Name
Auckland City Hospital; Auckland Haemophilia Centre
City
Auckland
ZIP/Postal Code
1023
Country
New Zealand
Facility Name
Uniwersyteckie Centrum Kliniczne; Klinika Hematologii i Transplantologii
City
Gdansk
ZIP/Postal Code
80-952
Country
Poland
Facility Name
SPSK Nr1 Klinika Hematoo&Transpl.Szpiku
City
Lublin
ZIP/Postal Code
20-081
Country
Poland
Facility Name
ALVAMED Lekarskie Gabinety Specjalistyczne
City
Poznań
ZIP/Postal Code
60-549
Country
Poland
Facility Name
Instytut Hematologii i Transfuzjologii; Klinika Zaburzeń Hemostazy i Chorób Wewnętrznych
City
Warsaw
ZIP/Postal Code
02-776
Country
Poland
Facility Name
Charlotte Maxeke Johannesburg Hospital; Haemophilia Comprehensive Care Center
City
Johannesburg
ZIP/Postal Code
2193
Country
South Africa
Facility Name
Hospital Universitario la Paz; Servicio de Hematologia
City
Madrid
ZIP/Postal Code
28046
Country
Spain
Facility Name
Hospital Universitario Virgen del Rocio; Servicio de Hematologia
City
Sevilla
ZIP/Postal Code
41013
Country
Spain
Facility Name
Hospital Universitario la Fe; Servicio de Hematologia
City
Valencia
ZIP/Postal Code
46026
Country
Spain
Facility Name
National Taiwan Uni Hospital
City
Taipei City
ZIP/Postal Code
10041
Country
Taiwan
Facility Name
Cardiff and Vale NHS Trust
City
Cardiff
ZIP/Postal Code
CF14 4XW
Country
United Kingdom
Facility Name
St Thomas' Hospital; Haemostasis & Thromboisis Centre
City
London
ZIP/Postal Code
SE1 7EH
Country
United Kingdom
Facility Name
Oxford University Hospitals NHS Trust - Churchill Hospital
City
Oxford
ZIP/Postal Code
OX3 7LE
Country
United Kingdom

12. IPD Sharing Statement

Citations:
PubMed Identifier
35939785
Citation
Kruse-Jarres R, Peyvandi F, Oldenburg J, Chang T, Chebon S, Doral MY, Croteau SE, Lambert T, Kempton CL, Pipe SW, Ko RH, Trzaskoma B, Dhalluin C, Bienz NS, Niggli M, Lehle M, Paz-Priel I, Young G, Jimenez-Yuste V. Surgical outcomes in people with hemophilia A taking emicizumab prophylaxis: experience from the HAVEN 1-4 studies. Blood Adv. 2022 Dec 27;6(24):6140-6150. doi: 10.1182/bloodadvances.2022007458.
Results Reference
derived
PubMed Identifier
28691557
Citation
Oldenburg J, Mahlangu JN, Kim B, Schmitt C, Callaghan MU, Young G, Santagostino E, Kruse-Jarres R, Negrier C, Kessler C, Valente N, Asikanius E, Levy GG, Windyga J, Shima M. Emicizumab Prophylaxis in Hemophilia A with Inhibitors. N Engl J Med. 2017 Aug 31;377(9):809-818. doi: 10.1056/NEJMoa1703068. Epub 2017 Jul 10.
Results Reference
derived

Learn more about this trial

A Study to Evaluate the Efficacy, Safety, and Pharmacokinetics of Prophylactic Emicizumab Versus no Prophylaxis in Hemophilia A Participants With Inhibitors

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