Abstract
Intravenous susoctocog alfa (Obizur®) is a recombinant, B-domain deleted, porcine sequence antihaemophilic factor VIII (FVIII) product that has recently been approved for the treatment of bleeding episodes in adults with acquired haemophilia A (AHA). Intravenous susoctocog alfa was an effective and generally well tolerated treatment for serious bleeding episodes in adult patients with AHA in a multinational, phase II/III trial (n = 28 evaluable). Patients received an initial dose of susoctocog alfa 200 U/kg, with subsequent dosages based on target FVIII trough levels and clinical assessments. All patients had a positive haemostatic response (based on predefined criteria) of the primary bleed 24 h after the first infusion of susoctocog alfa, with the bleed successfully controlled at the time of final dosing in 86 % of patients. The most frequently reported adverse reaction (incidence >5 %) was the development of inhibitory antibodies against susoctocog alfa (porcine FVIII). Overall, 25 % of antibody naive patients developed anti-susoctocog alfa antibodies during the study. No serious treatment-related adverse events, thrombotic events or allergic reactions were reported during the trial. In conclusion, intravenous susoctocog alfa is a useful addition to the limited treatment options available for the management of acute bleeding episodes in adults with AHA.
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During the peer review process, the manufacturer of susoctocog alfa was also offered an opportunity to review this article. Changes resulting from comments received were made on the basis of scientific and editorial merit.
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The preparation of this review was not supported by any external funding.
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Celeste B. Burness and Lesley J. Scott are salaried employees of Adis/Springer, are responsible for the article content and declare no relevant conflicts of interest.
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The manuscript was reviewed by: E. Berntorp, Malmö Centre for Thrombosis and Haemostasis, Lund University, Malmö, Sweden; A. Bianchi, Bonomi Hemophilia and Thrombosis Center, IRCCS Fondazione Ca’ Granda, Maggiore Hospital, Milan, Italy; C. Hermans, Division of Haematology Haemostasis and Thrombosis Unit Haemophilia Clinic, St-Luc University Hospital, Brussels, Belgium; M. E. Mancuso, Bonomi Hemophilia and Thrombosis Center, IRCCS Fondazione Ca’ Granda, Maggiore Hospital, Milan, Italy; P.M. Mannucci, IRCCS Ca’ Granda Maggiore Policlinico Hospital Foundation, Milan, Italy
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Burness, C.B., Scott, L.J. Susoctocog Alfa: A Review in Acquired Haemophilia A. Drugs 76, 815–821 (2016). https://doi.org/10.1007/s40265-016-0576-1
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DOI: https://doi.org/10.1007/s40265-016-0576-1