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Study of the Efficacy and Safety PF-06741086 in Adult and Teenage Participants With Severe Hemophilia A or Moderately Severe to Severe Hemophilia B

Phase 3
Completed
Conditions
Hemophilia B
Hemophilia A
Interventions
Registration Number
NCT03938792
Lead Sponsor
Pfizer
Brief Summary

Treatment with PF-06741086 is anticipated to demonstrate a clinically relevant advantage and/or a major contribution to patient care in comparison to current methods of treatment for hemophilia A or B because it works differently than factor replacement products and will work in the presence of inhibitors. The potential for once weekly (QW) subcutaneous (SC) administration provides for treatment options in the absence of reliable vascular access, increased convenience and may enable better compliance. Combined, these qualities should result in a reduction of bleeding episodes.

Detailed Description

Not available

Recruitment & Eligibility

Status
COMPLETED
Sex
Male
Target Recruitment
189
Inclusion Criteria

Not provided

Exclusion Criteria

Not provided

Study & Design

Study Type
INTERVENTIONAL
Study Design
CROSSOVER
Arm && Interventions
GroupInterventionDescription
PF-06741086PF-06741086Participants will be assigned to treatment with PF-06741086 after a 6 month Observation Phase on their current hemophilia regimen.
Primary Outcome Measures
NameTimeMethod
Incidence of severe hypersensitivity and anaphylactic reactionsFrom Screening through Observational and Active Treatment (approximately 18 months)
Annualized bleeding rate (ABR) of treated bleeding eventsThrough Observational Phase (6months) and Active Treatment Phase (12 months) for total of approximately 18 months

Derived for each subject for each treatment period by using the following formula: ABR = number of bleeds requiring treatments/ (days on treatment period / 365.25)

Incidence and severity of thrombotic eventsThrough Observational Phase (6 months) and Active Treatment Phase (12 months) for total of approximately 18 months
Incidence of anti drug antibody [ADA] against PF-06741086Throughout Active Treatment Phase (12 months)
Incidence of clinically significant persistent neutralizing antibody [NAb] against PF-06741086Throughout Active Treatment Phase (12 months)
Incidence and severity of injection site reactionThroughout Active Treatment Phase (12 months)
Number of participants with clinically significant changes from baseline in physical examFrom Baseline through Observation and Active Treatment (approximately 18 months)
Incidence of clinically significant laboratory value abnormalitiesFrom Screening through Observation and Active Treatment (approximately 18 months)
Incidence of adverse events and serious adverse eventsFrom screening through Observation and Active treatment (approximately 18 months)
Number of participants with clinically significant changes from baseline in vital signsFrom Baseline through Observation and Active Treatment (approximately 18 months)
Incidence and severity of thromboticangiopathyThroughout Active Treatment Phase (12 months)
Incidence of intravascular coagulation/consumption coagulopathyThroughout Active Treatment Phase (12 months)
Secondary Outcome Measures
NameTimeMethod
Incidence of target joint bleedsThrough Observational Phase (6 months) and Active Treatment Phase (12 months) for total of approximately 18 months
Incidence of total bleeds (treated and untreated)Through Observational and Active Treatment Phases (18 Months)
Change from baseline in the Hemophilia Joint Health Score (HJHS)Through Observational Phase (6 months) and Active Treatment Phase (12 months) for total of approximately 18 months
Change from baseline in Hemophilia Pediatric Activities List (PedHAL)Through Observational Phase (6 months) and Active Treatment Phase (12 months) for total of approximately 18 months
Incidence of joint bleedsThrough Observational Phase (6 months) and Active Treatment Phase (12 months) for total of approximately 18 months
Incidence of spontaneous bleedsThrough Observational Phase (6 months) and Active Treatment Phase (12 months) for total of approximately 18 months
Change from baseline in (Haemophilia Adult Quality of Life Questionnaire (Haem-A-QoL)Through Observational Phase (6 months) and Active Treatment Phase (12 months) for total of approximately 18 months
Change from baseline in Haemophilia Quality of Life Questionnaire for Children (Haemo-QoL)Through Observational Phase (6 months) and Active Treatment Phase (12 months) for total of approximately 18 months
Change from baseline in Hemophilia Adult Activities List (HAL)Through Observational Phase (6 months) and Active Treatment Phase (12 months) for total of approximately 18 months
Patient Global Impression of Change - Hemophilia (PGIC-H)Through Observational Phase (6 months) and Active Treatment Phase (12 months) for total of approximately 18 months
Change from baseline in EuroQol 5 Dimensions 5 Level (EQ-5D-5L)Through Observational Phase (6 months) and Active Treatment Phase (12 months) for total of approximately 18 months

Trial Locations

Locations (62)

USF Health Morsani Center For Advanced Healthcare

🇺🇸

Tampa, Florida, United States

University of Iowa

🇺🇸

Iowa City, Iowa, United States

Northwell Health HTC

🇺🇸

New Hyde Park, New York, United States

Washington Institute for Coagulation

🇺🇸

Seattle, Washington, United States

National Specialized Hospital for the Active Treatment of Hematological Diseases - EAD, Sofia

🇧🇬

Sofia, Bulgaria

UMHAT "Prof.Dr. Stoyan Kirkovich"

🇧🇬

Stara Zagora, Bulgaria

McMaster University Medical Centre - Hamilton Health Sciences

🇨🇦

Hamilton, Ontario, Canada

McMaster Children's Hospital

🇨🇦

Hamilton, Ontario, Canada

McMaster University

🇨🇦

Hamilton, Ontario, Canada

The Hospital For Sick Children

🇨🇦

Toronto, Ontario, Canada

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USF Health Morsani Center For Advanced Healthcare
🇺🇸Tampa, Florida, United States

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