Sarepta Therapeutics Submits Biologics License Application for SRP-9001 for the Treatment of Ambulant Patients with Duchenne Muscular Dystrophy

09/29/22 8:30 AM EDT

CAMBRIDGE, Mass., Sept. 29, 2022 (GLOBE NEWSWIRE) — Sarepta Therapeutics, Inc. (NASDAQ:SRPT), the leader in precision genetic medicine for rare diseases, today announced that it has submitted a Biologics License Application (BLA) to the U.S. Food and Drug Administration (FDA) for the accelerated approval of SRP-9001 (delandistrogene moxeparvovec) to treat ambulant patients with Duchenne muscular dystrophy. SRP-9001 is an investigational gene therapy for Duchenne being developed in partnership with Roche.

The BLA is submitted for accelerated approval based on the expression of SRP-9001 dystrophin protein, an internally shortened and functional version of dystrophin, as a surrogate endpoint reasonably likely to predict clinical benefit. Among other things, the BLA is based on positive pre-clinical, biomarker and clinical functional results. In clinical trials, SRP-9001 demonstrated positive results at multiple time points, including one-, two- and four-years after treatment, in addition to a consistent safety profile. The submitted BLA for SRP-9001 includes efficacy and safety data from Studies SRP-9001-101, SRP-9001-102, SRP-9001-103 (also known as ENDEAVOR), as well as an integrated analysis across these three clinical studies comparing functional results to a propensity-score-matched external control (EC). Quantification of the SRP-9001-protein expression is measured by western blot and supported by immunofluorescence and efficacy is further supported by biomarker and clinical functional benefit as measured by the North Star Ambulatory Assessment (NSAA) and secondary timed tests.

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