BioMarin Pharmaceutical Inc. insists that it did not know that the US Food and Drug Administration wanted to see longer-term data on its gene therapy Roctavian (valoctocogene roxaparvovec) for severe hemophilia A until it received a complete response letter from the agency.
Not Such A Sure Thing: FDA Knocks Back BioMarin’s Roctavian
Company’s Hemophilia A Gene Therapy Gets A CRL
BioMarin’s confidence that its first-ever hemophilia gene therapy would be cleared by the US FDA was shaken by a complete response letter that the company claims changed the requirements for approval.

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