Roche announced that the primary endpoint has been met for the phase III HAVEN 1 study evaluating emicizumab prophylaxis in people 12 years of age or older with haemophilia A and inhibitors to factor VIII. The study showed a statistically significant reduction in the number of bleeds over time in people treated with emicizumab prophylaxis compared to those receiving no prophylactic treatment. The study also met all secondary endpoints, including a statistically significant reduction in the number of bleeds over time with emicizumab prophylaxis treatment in an intra-patient comparison in people who had received prior bypassing agent prophylaxis treatment. The most common adverse events with emicizumab were injection site reactions, consistent with prior studies.



