Shares of Sarepta Therapeutics Inc (NASDAQ:SRPT) plunged 10% after the company disclosed that the U.S. Food and Drug Administration (FDA) has imposed a clinical hold on several of its gene therapy programs targeting limb girdle muscular dystrophy (LGMD).

Vinay Prasad, M.D., has left the FDA less than three months into the role as director of the Center for Biologics Evaluation and Research (CBER), overseeing vaccines and cell and gene therapies.

In a major win for Sarepta Therapeutics Inc., US regulators are recommending that patients who can walk be allowed to take its gene therapy Elevidys again.