Dr. Vinay Prasad had been serving as the FDA's director of the Center for Biologics Evaluation and Research since May, and was later named chief medical and scientific officer.

Vinay Prasad, a top regulator at the US Food and Drug Administration, has left the agency after a controversy over his handling of Sarepta Therapeutics Inc.’s gene therapy. “Dr. Prasad did not want to be a distraction to the great work of the FDA in the Trump administration and has decided to return to California and spend more time with his family,