EFC17574: A Phase 3, single-arm, multicenter, multinational, open label, one-way crossover study to investigate the efficacy and safety of fitusiran prophylaxis in male participants aged >= 12 years with severe hemophilia A or B, with or without inhibitory antibodies to factor VIII or IX


A study to test a medicine (fitusiran) injected under the skin for preventing bleeding episodes in male adolescent or adult participants with severe Hemophilia.

I'm interested

Not specified
This study is NOT accepting healthy volunteers
Inclusion Criteria:

• 12 years or older
• diagnosis of severe congenital hemophilia A or B
• participants currently not on prophylaxis (CFC or BPA on-demand): A minimum of 4 bleeding episodes requiring BPA (inhibitor participants) or CFC (non-inhibitor participants) treatment within the last 6 months
Exclusion Criteria:

• co-existing bleeding disorders other than congenital hemophilia A or B
• current participation in immune tolerance induction therapy (ITI)
• prior treatment with gene therapy
• acute hepatitis, ie, hepatitis A, hepatitis E, acute or chronic hepatitis B infection
• additional exclusion criteria apply (study staff will review)

Blood Disorders


Diondra Howard -
Jacob Cogan
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