Pfizer Inc., which has taken the lead in the race to bring the first gene therapy to market for Duchenne muscular dystrophy (DMD), has faced a delay with the start of a Phase III trial in the US, presenting an opportunity for Sarepta Therapeutics, Inc. to close the gap with its rival gene therapy, SRP-9001.
Pfizer has been the first to advance its gene therapy candidate – fordadistrogene movaparvovec – into Phase III clinical development, but US enrollment has been held up by the US Food and Drug Administration, the company disclosed during its first quarter sales and