Shares of drugmaker Sarepta Therapeutics surged in afterhours trading Monday after the company said it would resume shipping its gene therapy.

Sarepta Therapeutics said on Monday it will resume shipping of its muscular disorder gene therapy to patients who can walk, sending the company's shares 59% higher in extended trading. The announcement came immediately after the U.

On Monday, the FDA said Sarepta may resume treating ambulatory Duchenne patients with Elevidys. The recommendation comes just 10 days after the agency requested that the company halt all shipments of the one-time treatment following reports of three deaths among patients who had received a Sarepta gene therapy, including two on Elevidys.