US FDA adds strongest warning to Sarepta gene therapy after fatal liver injuries

Nov 14 (Reuters) – The U.S. Food and Drug Administration said on Friday it approved new labeling for Sarepta Therapeutics’ (SRPT.O), opens new tab gene therapy Elevidys that includes its most serious safety warning and restricts use of the treatment to walking patients with Duchenne muscular dystrophy.

The agency added a boxed warning to the therapy after two non-ambulatory pediatric patients died from acute liver failure following treatment. The new label removes approval for use in non-ambulatory patients entirely, limiting the drug to ambulatory patients aged four and older.

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Earlier this year, Sarepta voluntarily paused distribution of Elevidys for non-ambulatory patients in June after the FDA issued a safety communication following the deaths.

Reporting by Padmanabhan Ananthan in Bengaluru; Editing by Alan Barona

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