Cowley Leongini Quoted on Sarepta’s Halt of Duchenne Gene Therapy Sales Amid FDA Scrutiny

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Partner Emily Cowley Leongini was quoted on Sarepta Therapeutics’ decision to pause sales of its Duchenne muscular dystrophy gene therapy Elevidys (delandistrogene moxeparvovec) following a request from the US Food and Drug Administration (FDA).

The FDA’s request followed news of a patient death tied to an experimental gene therapy treatment that uses the same adeno-associated virus serotype, AAVrh74, as Elevidys.  

Though this is the first time the FDA has taken this type of action against a gene therapy, it is not the first time the agency has requested a drug manufacturer to stop distributing a product.

Emily said that this is a “pretty novel situation,” and that “this does not happen a lot.”

To resume distribution, Sarepta will have to convince the FDA that Elevidys is sufficiently safe, which could involve changing its label or establishing whether there’s a need to limit the population that’s eligible for the product.

“There’s going to be a back-and-forth with the FDA,” Emily said. “That’s typically not a quick process, particularly not when there have been deaths involved.”

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