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October 1, 2012
Biogen Idec and Swedish Orphan Biovitrum released results from a phase III trial of rFIXFc for the treatment of hemophilia B. This open-label, multi-center, multi-arm study, B-LONG, enrolled 123 male patients aged 12 years and older. Subjects were divided into four arms and received rFIXFc 50IU/kg weekly as prophylaxis, rFIXFc 100IU/kg every 10 days as an individualized interval prophylaxis, episodic treatment or perioperative management. Data showed that the overall median annualized bleeding rates (including spontaneous and traumatic bleeds) were 2.95 in the weekly prophylaxis arm; 1.38 in the individualized interval prophylaxis arm; and 17.69 in the episodic treatment arm. In the individualized interval prophylaxis arm, the median dosing interval during the last six months on study was 14 days. Overall, 90.4% of bleeding episodes were controlled by a single injection of rFIXFc. The drug was well tolerated. The most frequent adverse events were nasopharyngitis, influenza, arthralgia, upper respiratory infection, hypertension and headache. Based on these findings, Biogen Idec plans to submit a Biologics License Application to the FDA in the first half of 2013. Additional analyses of the B-LONG study are ongoing.
July 16, 2012
Inspiration Biopharmaceuticals reported interim results from a phase II/III trial of OBI-1 for the treatment of acquired hemophilia A. The open-label study enrolled seven patients experiencing serious bleeds. Subjects received 200U/kg of OBI-1 on first injection and were subsequently dosed based on target FVIII levels. All seven subjects experienced successful control of bleeds at 24 hours and subsequent resolution of their bleeds. Therapeutic FVIII activity levels were achieved and maintained with intermittent OBI-1 administration based on FVIII levels. Of the adverse events reported during the study thus far, five were serious, but these were not considered by investigators to be treatment-related. Inspiration Biopharmaceuticals plans to continue the phase II/III trial.
February 27, 2012
Inspiration Biopharmaceuticals reported results from a clinical trial evaluating IB1001 for hemophilia B. The trial enrolled 14 subjects ages 12 and older with hemophilia B who were scheduled for major surgical procedures. The subjects received either bolus or continuous infusion of IB1001 during surgery and for a minimum of three days post procedure. Hemostasis was evaluated at 12 hours and 24 hours post procedure. IB1001 resulted in effective control of bleeding. Estimated intra-operative blood loss was rated as expected or less than expected in all subjects. IB1001 was well-tolerated with few adverse events.
July 19, 2010
Biogen Idec and Swedish Orphan Biovitrum issued positive results from a phase I/II trial of their fully-recombinant factor IX Fc fusion protein, rFIXFc, for the treatment of hemophilia B. This open-label, multi-center, dose-escalation study, SYN-FIXFc-07-001, enrolled 14 previously-treated subjects with severe hemophilia B. The subjects received a single dose of rFIXFc given as an intravenous injection at doses ranging from 1 to 100 IU/kg. rFIXFc was well tolerated and demonstrated an approximately three-fold increase in half-life compared to historical data for existing therapies.
August 29, 2005
Baxter Healthcare reported positive results from a multi trials investigating Advate, a recombinant antihemophilic factor for the treatment of hemophilia A. The first results were from a preliminary assessment of a prospective international, multi-center study enrolling 53 pediatric subjects less than six years of age who were previously treated with factor VIII. Results demonstrated that no patients discontinued therapy as a result of an adverse event and no incidence of factor VIII antibodies were reported in this study. The second were of preliminary results of a multi- center, prospective, open-label, uncontrolled study designed to test the efficacy, safety and immunogenicity on 57 hemophilia A subjects undergoing surgery or other invasive procedures. An interim assessment of the first 44 procedures performed demonstrated an efficacy rating of excellent/good in 97.7% of surgeries. The company presented the data at the 20th Congress of the International Society on Thrombosis and Haemostasis held in Sydney, Australia.