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  • Title: Prophylaxis vs. on-demand treatment with Nuwiq(®) (Human-cl rhFVIII) in adults with severe haemophilia A.
    Author: Tiede A, Oldenburg J, Lissitchkov T, Knaub S, Bichler J, Manco-Johnson MJ.
    Journal: Haemophilia; 2016 May; 22(3):374-80. PubMed ID: 26582282.
    Abstract:
    INTRODUCTION: Haemophilia A is treated with FVIII, either prophylactically or on demand. Prophylaxis is the gold standard in children and evidence is accumulating in adults. AIMS/METHODS: The aim of this analysis was to compare prophylaxis vs. on-demand treatment with Nuwiq(®) (Human-cl rhFVIII), a new-generation rFVIII expressed in a human cell line, in previously treated patients (PTPs) with severe haemophilia A. Data were analysed from two similarly designed, multinational, prospective, open-label studies with similar inclusion and exclusion criteria and comparable patient demographics. Human-cl rhFVIII was administered either prophylactically in a study of 32 adults or on-demand in a study of 22 patients (20 adults and two adolescents). RESULTS: Patients treated prophylactically experienced 36 bleeds compared with 997 bleeds in patients treated on-demand (mean observation periods: 180 and 335 days respectively). Based on a negative binomial regression model, annualized bleeding rate (ABR) during prophylaxis was 2.30 (95% CI: 1.54, 3.44) compared with 57.74 (95% CI: 43.36, 76.91) during on-demand treatment, which equates to a 96% lower ABR during prophylaxis. 'Excellent' or 'good' efficacy in the treatment of bleeds was achieved with Human-cl rhFVIII in 100% of 28 evaluated bleeds during the prophylaxis study and 94.5% of 985 evaluated bleeds during the on-demand study. No inhibitors, treatment-related serious adverse events or severe adverse events were recorded during prophylaxis or or-demand treatment. CONCLUSIONS: Prophylaxis with Human-cl rhFVIII reduces recurrent bleeding in adult PTPs with severe haemophilia A and adds further supportive evidence for the benefits of prophylaxis in adults.
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