Sarepta's Eteplirsen Approved After Contentious Internal FDA Debate
CDER Director Woodcock grants accelerated approval after FDA Commissioner Califf refuses to overturn her finding that the drug's effect on dystrophin is reasonably likely to predict clinical benefit in Duchenne muscular dystrophy.
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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.
Despite obvious similarities in the contentious reviews of Sarepta’s Vyondys 53 and its predecessor Exondys 51, drug developers should focus on the differences between the two reviews.
Sarepta’s Vyondys: Renal Toxicity Concerns That Delayed Approval Get Enhanced Postmarketing Scrutiny, Label Warning
Sarepta must perform enhanced pharmacovigilance for serious renal toxicity events and rhabdomyolysis with the Duchenne muscular dystrophy drug, which carries a label warning for renal toxicity. Approval letter includes 2024 target completion date for ESSENCE confirmatory trial.