Updated results from a Phase I/II of BMN 270, BioMarin’s investigative AAV5-FVIII gene transfer for hemophilia A, show that a single high dose of the gene therapy produced a 91% reduction in mean annualized bleed rates for patients who were previously treated with prophylactic Factor VIII after a follow up ranging from 34 to 50 weeks. The company plans to start a “potentially registration-enabling” Phase IIb study in the third quarter and will commission a gene therapy manufacturing facility mid-year on the back of the results.
Preliminary data from the Phase I/II study were released last July at the World Federation of Hemophilia meeting, but, as...






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