Sarepta Therapeutics Inc. shares rose sharply early Tuesday after US regulators reversed course and recommended that patients who can walk be allowed to take its gene therapy Elevidys again.

As the controversy over the safety of Sarepta Therapeutics’ gene therapies comes to a head, the biotech is standing firm behind its approved Duchenne muscular dystrophy (DMD) treatment. | As the controversy over the safety of Sarepta Therapeutics’ gene therapies comes to a head,

Sarepta Therapeutics shares snapped a three-day losing streak on Tuesday, as analysts said resumption of U.S. shipments for its muscular gene therapy soothes immediate concerns about liquidity and the therapy's withdrawal from the market.