The last couple of weeks has been particularly distressing for Duchenne muscular dystrophy patients and their families. The fate of Sarpeta’s gene therapy for the disease, called Elevidys, has been the center of a dizzying saga that seems to change by the minute.

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

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.