Sarepta Therapeutics Inc. is set to introduce the first gene transfer therapy for ambulatory patients diagnosed with Duchenne muscular dystrophy (DMD), after the U.S. FDA granted accelerated approval to SRP-9001 (delandistrogene moxeparvovec). Branded Elevidys, the therapy marks Sarepta’s fourth approved treatment for DMD and the first to offer patients a one-time treatment option.