Evaluate Efficacy and Safety of ADVATE in the Standard Prophylaxis Treatment of Severe or Moderately Severe Hemophilia A

Summary

Based on the successful pioneer work of Dr Nilsson and her colleagues in Sweden that started in the late 1950's, prophylaxis is recommend as the standard of care for boys with severe haemophilia by WHO and World Federation of Hemophilia (WFH). The efficacy and safety of prophylaxis in preventing bleeds and arthropathy in patients with hemophilia has been confirmed in well-designed clinical studies.To keep the factor level above 1%, the standard dosage for patients with severe hemophilia A is 20-40 Units /kg/infusion (average 30 Units /kg) every other day or three times a week. This dosage has a very high consumption of factor, up to 5000-6000 international unit(IU)/kg/year. The high consumption of factor and cost present a major barrier to use the standard prophylaxis in many countries particularly in the developing world. But after the Recombinant Human Coagulation Factor VIII for injection (ADVATE) Patient Assistance Program(Golden Key) was launched in 24 Apr 2014 in Nanjing China, the affordability of patients was solved and many patients will get more chance to receive standard prophylaxis. This study is designed to evaluate the Annual Bleeding rate (ABR), joint health outcomes and QoL outcomes in subjects using standard prophylaxis under the conditions of routine practice.

Timeline

Start

2014-12

Primary completion

2016-12

Completion

2016-12

Publications

• Background Astermark J, Petrini P, Tengborn L, Schulman S, Ljung R, Berntorp E. Primary prophylaxis in severe haemophilia should be started at an early age but can be individualized. Br J Haematol. 1999 Jun;105(4):1109-13. doi: 10.1046/j.1365-2141.1999.01463.x.
• Background Berntorp E, Boulyjenkov V, Brettler D, Chandy M, Jones P, Lee C, Lusher J, Mannucci P, Peak I, Rickard K, et al. Modern treatment of haemophilia. Bull World Health Organ. 1995;73(5):691-701.
• Background Manco-Johnson MJ, Abshire TC, Shapiro AD, Riske B, Hacker MR, Kilcoyne R, Ingram JD, Manco-Johnson ML, Funk S, Jacobson L, Valentino LA, Hoots WK, Buchanan GR, DiMichele D, Recht M, Brown D, Leissinger C, Bleak S, Cohen A, Mathew P, Matsunaga A, Medeiros D, Nugent D, Thomas GA, Thompson AA, McRedmond K, Soucie JM, Austin H, Evatt BL. Prophylaxis versus episodic treatment to prevent joint disease in boys with severe hemophilia. N Engl J Med. 2007 Aug 9;357(6):535-44. doi: 10.1056/NEJMoa067659.
• Background Gringeri A, Lundin B, von Mackensen S, Mantovani L, Mannucci PM; ESPRIT Study Group. A randomized clinical trial of prophylaxis in children with hemophilia A (the ESPRIT Study). J Thromb Haemost. 2011 Apr;9(4):700-10. doi: 10.1111/j.1538-7836.2011.04214.x.
• Background Valentino LA, Mamonov V, Hellmann A, Quon DV, Chybicka A, Schroth P, Patrone L, Wong WY; Prophylaxis Study Group. A randomized comparison of two prophylaxis regimens and a paired comparison of on-demand and prophylaxis treatments in hemophilia A management. J Thromb Haemost. 2012 Mar;10(3):359-67. doi: 10.1111/j.1538-7836.2011.04611.x.
• Background Srivastava A, Brewer AK, Mauser-Bunschoten EP, Key NS, Kitchen S, Llinas A, Ludlam CA, Mahlangu JN, Mulder K, Poon MC, Street A; Treatment Guidelines Working Group on Behalf of The World Federation Of Hemophilia. Guidelines for the management of hemophilia. Haemophilia. 2013 Jan;19(1):e1-47. doi: 10.1111/j.1365-2516.2012.02909.x. Epub 2012 Jul 6.
• Background Nilsson IM, Berntorp E, Lofqvist T, Pettersson H. Twenty-five years' experience of prophylactic treatment in severe haemophilia A and B. J Intern Med. 1992 Jul;232(1):25-32. doi: 10.1111/j.1365-2796.1992.tb00546.x.
• Background Ljung R. Prophylactic therapy in haemophilia. Blood Rev. 2009 Nov;23(6):267-74. doi: 10.1016/j.blre.2009.08.001. Epub 2009 Sep 22.

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