• Hannah A Blair.
• Springer Nature, Private Bag 65901, Mairangi Bay, Auckland, 0754, New Zealand. demail@springer.com.
• Drugs. 2019 Oct 1; 79 (15): 1697-1707.

AbstractEmicizumab (Hemlibra®), a recombinant, humanized, bispecific monoclonal antibody, restores the function of missing activated factor VIII (FVIII) by bridging FIXa and FX to facilitate effective haemostasis in patients with haemophilia A. Subcutaneous emicizumab is approved in several countries, including in the USA and Japan, for the routine prophylaxis of bleeding episodes in patients with haemophilia A with or without FVIII inhibitors. It is also approved in the EU for the routine prophylaxis of bleeding episodes in patients with haemophilia A with inhibitors or severe haemophilia A without inhibitors. In phase III clinical trials, emicizumab prophylaxis significantly reduced annualized bleeding rates compared with no prophylaxis in adolescents and adults with haemophilia A with or without inhibitors, and prevented or substantially reduced bleeding in children with haemophilia A with or without inhibitors. Emicizumab was also associated with beneficial effects on health-related quality of life and health status, and was generally well tolerated. In view of its convenient route of administration and versatile dosage regimens (maintenance dose of once every 1, 2 or 4 weeks), emicizumab provides an effective and generally well-tolerated alternative to conventional FVIII replacement products for the prophylaxis of bleeding episodes in patients with haemophilia A, regardless of the presence or absence of inhibitors.

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