Prophylaxis in haemophilia with inhibitors: Update from international experience

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Abstract

An antibody response to therapeutically administered factor VIII (FVIII) can occur in up to 30% of patients with haemophilia, resulting in the production of inhibitors that neutralize FVIII coagulant activity. Immune tolerance induction (ITI) therapy can be used to eradicate inhibitors in these patients, allowing them to continue with factor replacement therapy. Patients with inhibitors (prior to initiation of ITI, while on ITI or those who fail ITI) experience more difficulty in treating bleeds than those patients who do not develop inhibitors. Increasingly, prophylaxis with bypassing therapy is being employed in patients who develop inhibitors. Two bypassing agents, a plasma-derived activated prothrombin complex concentrate [aPCC (FEIBA®; Baxter AG, Vienna, Austria)] and NovoSeven® [recombinant factor VIIa (rFVIIa); NovoNordisk, Denmark] are potentially available for prophylaxis in patients with haemophilia who have developed inhibitors. Results from recent retrospective studies demonstrate the efficacy and safety of both aPCC and rFVIIa in decreasing the frequency of bleeding episodes in patients with haemophilia and inhibitors. In this article, we highlight a number of ongoing studies that aim to identify patients who should be placed on prophylaxis with bypassing agents. © 2010 Blackwell Publishing Ltd.

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APA

Carcao, M., & Lambert, T. (2010, March). Prophylaxis in haemophilia with inhibitors: Update from international experience. Haemophilia. https://doi.org/10.1111/j.1365-2516.2009.02198.x

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