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The purpose of the study is to learn about safety, how the body processes marstacimab and how it works in patients with severe hemophilia A. A rare bleeding disorder where the blood doesn't clot normally. This causes a person to bleed a lot, even from a small cut.
These patients can be with or without inhibitors who are on emicizumab medicine for routine prophylaxis for at least 6 months, and desire to switch to marstacimab medicine. Inhibitors are antibodies that the immune system develops because it sees the infused clotting factor as a foreign substance that needs to be destroyed. Antibodies are proteins that eat up the activated factor before it has time to stop the bleeding. Prophylaxis are preventive medicines.
This study is seeking for participants:
Closest Location
NCT# stands for National Clinical Trial number. This is a unique identification code given to each clinical trial registered on ClinicalTrials.gov. The format is "NCT" followed by an 8-digit number (for example, NCT00000419). Also called the ClinicalTrials.gov identifier.
Each clinical study has its own guidelines for who may participate, called eligibility criteria. These factors can include your age, sex, overall health, type and stage of disease, and personal treatment history. However, only the research study staff can determine if you qualify to enroll in the study.
Condition
Severe Hemophilia A
Sex
Male
Age
12 - 74 years