An Open Label Study to Determine the Safety and Efficacy of Replacement Factor VIII Protein (Known as rFVIIIFc) in Previously Untreated Males With Severe Hemophilia A
Hemophilia A
About this trial
This is an interventional treatment trial for Hemophilia A focused on measuring prophylaxis treatment, Hemophilia A, Hemophilia, episodic treatment
Eligibility Criteria
Key Inclusion Criteria:
- Ability of the participant's legally authorized representative (e.g. their parent or legal guardian) to understand the purpose and risks of the study and provide signed and dated informed consent and authorization to use confidential health information in accordance with national and local participant privacy regulations.
- Weight >=3.5 kg at the time of screening.
- Severe hemophilia A defined as less than (<) 1 IU/dL (<1%) endogenous FVIII documented in the medical record or as tested during the Screening Period.
Key Exclusion Criteria:
- Any exposure to blood components, factor VIII replacement products, including commercially available rFVIIIFc at any time prior to or during screening.
- History of positive inhibitor testing. A prior history of inhibitors was defined based on a patient's historical positive inhibitor test using the local laboratory Bethesda value for a positive inhibitor test (ie, equal to or above lower level of detection).
- History of hypersensitivity reactions associated with any rFVIIIFc administration.
- Other coagulation disorder(s) in addition to hemophilia A.
- Any concurrent clinically significant major disease that, in the opinion of the Investigator, would make the participant unsuitable for enrollment.
- Current systemic treatment with chemotherapy and/or other immunosuppressant drugs.
Note: Other protocol defined Inclusion/Exclusion criteria may apply.
Sites / Locations
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
- Research Site
Arms of the Study
Arm 1
Experimental
rFVIIIFc
Participants were to receive rFVIIIFc as follows- Prophylaxis regimen (PR): rFVIIIFc 25-80 international units per kilogram (IU/kg), at 3- to 5-day intervals until participant reached greater than or equal to (>=) 50 exposure days (ED: 24-hour period in which >=1 injection/dose of rFVIIIFc was given), or study withdrawal/end of study. Adjustments to dose/dosing interval was done as needed by investigator; Treatment with an optional ER (Episodic regimen) can be initiated before PR at investigators discretion; ITI: rFVIIIFc 200 IU/kg, daily for participants who, after exposure to rFVIIIFc, had positive high titer inhibitor (>=5.00 Bethesda Units per milliliter [BU/mL]) or positive low titer inhibitor (>=0.60 and <5.00 BU/mL) and had poorly controlled bleeding despite increased rFVIIIFc doses, or required bypassing agent to treat bleeding.