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  • Title: Novel, human cell line-derived recombinant factor VIII (Human-cl rhFVIII, Nuwiq® ) in children with severe haemophilia A: efficacy, safety and pharmacokinetics.
    Author: Klukowska A, Szczepański T, Vdovin V, Knaub S, Jansen M, Liesner R.
    Journal: Haemophilia; 2016 Mar; 22(2):232-239. PubMed ID: 26370328.
    Abstract:
    INTRODUCTION: Nuwiq® (Human-cl rhFVIII) is a new-generation recombinant factor VIII (rFVIII) protein, without chemical modification or fusion to any other protein, produced in a human cell line. AIM/METHODS: This prospective, open-label, multinational phase III study assessed the efficacy and safety of Human-cl rhFVIII in 59 previously treated patients (PTPs) with severe haemophilia A aged 2-12 years (2-5 [N = 29]; 6-12 [N = 30]) during standard prophylaxis (≥50 exposure days and ≥6 months). Efficacy in treating breakthrough bleeds and during surgical prophylaxis was also assessed. RESULTS: An initial pharmacokinetic assessment (N = 13 per age subgroup) demonstrated comparable results with the one-stage and chromogenic assays. Mean (SD) half-life was 11.9 (5.4) and 13.1 (2.6) hours in children aged 2-5 years and 6-12 years respectively (one-stage assay). Prophylactic efficacy, based on mean monthly bleeding rate, was 'excellent' or 'good' in 91.5% of children for all bleeds and in 96.6% of children for spontaneous bleeds. Mean (SD) annualized bleeding rate was 4.12 (5.22) [median 1.9] for all bleeds, 1.50 (3.32) [median 0] for spontaneous bleeds and 2.34 (3.54) [median 1.57] for traumatic bleeds. There were no major, life-threatening bleeds. Efficacy was 'excellent' or 'good' in the treatment of 82.4% of breakthrough bleeds. Overall efficacy during five major surgeries was rated as 'excellent'. There were no FVIII inhibitors or treatment-related serious adverse events. CONCLUSION: These results in paediatric PTPs indicate that Human-cl rhFVIII is effective for the prevention and treatment of bleeds.
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