With Sarepta’s Vyondys, US FDA Staff Saw Opportunity To Right Perceived Wrongs With Exondys

ODE I director Ellis Unger chafed at the notion of approving the Duchenne muscular dystrophy drug golodirsen on the same unvalidated surrogate marker, this time in the face of infection and renal toxicity concerns; OND’s Peter Stein granted Sarepta’s appeal while also calling attention to the company’s failure to timely conduct the eteplirsen confirmatory trial.

Drug Review Profile regular column
Sarepta successfully appealed a complete response letter for Vyondys 53.

For some at the US Food and Drug Administration, the review of Sarepta Therapeutics Inc.’s Duchenne muscular dystrophy drug Vyondys 53 (golodirsen) provided an opportunity to try to right the wrongs they saw with the accelerated approval of Exondys 51 (eteplirsen) three years earlier.

The mere fact of eteplirsen’s approval, and the precedent it set, was wrong in the eyes of some agency staffers....

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