Senate Committee Urges FDA Approval of Duchenne Drug

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The Senate Committee on Homeland Security and Governmental Affairs has written FDA commissioner Robert Califf urging the agency to exercise its flexibilities when making a review decision this week on a Sarepta Therapeutics NDA for eteplirsen and its use in treating Duchenne muscular dystrophy. In April, the agency’s Peripheral and Central Nervous System Drugs Advisory Committee voted 7 to 6 (see story) that a Sarepta Therapeutics NDA did not provide substantial evidence from adequate and well controlled studies that eteplirsen induces production of dystrophin to a level that is reasonably likely to predict clinical benefit in Duchenne patients. The vote was seen as a setback for the company’s bid to gain accelerated approval for the drug. A separate 7 to 3 vote by the panel recommended that data were not sufficient to meet traditional approval standards. The 5/20 letter to Califf encourages FDA to “prioritize the patient perspective” when making a decision on the submission. It also complains that the questions given to advisory committee member were posed in such a way to make it difficult for them to vote favorably on the NDA. “Patients are crying out for the FDA to hear them: they are engaged and knowledgeable and only want the agency to do what is already within their power,” it says. “We fully support their perspective.”

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