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Valoctocogene Roxaparvovec Study Doses 1st Hemophilia Patient with Pre-existing AAV5 Antibodies

A Phase 1/2 trial (NCT03520712) testing BioMarin Pharmaceutical’s investigational gene therapy valoctocogene roxaparvovec in severe hemophilia A patients with pre-existing AAV5 antibodies has dosed its first participant. “Administration of valoctocogene roxaparvovec to this first patient seropositive for the AAV5 capsid is an important next step in our plan…