Corcept Therapeutics, Inc. is a commercial-stage pharmaceutical company. It engages in the business of discovering and developing pharmaceutical products and medications to treat severe endocrinologic, oncologic, metabolic, and neurologic disorders by modulating the effects of the hormone cortisol. The company was founded by David B. Singer and Joseph K. Belanoff on May 13, 1998 and is headquartered in Redwood City, CA.