The company is seeking accelerated approval for the first gene therapy for Duchenne muscular dystrophy, based on data that showed it helped patients make a mini version of the dystrophin protein needed to keep muscle cells intact.
"Additionally, FDA has safety concerns related to the
possibility of administering an ineffective gene therapy," the
reviewers said in the briefing documents, ahead of a meeting of
outside advisers to the drug agency on Friday.
(Reporting by Leroy Leo in Bengaluru; Editing by Sriraj
Kalluvila)