Corcept Therapeutics Incorporated (Corcept) is a pharmaceutical company engaged in the development of drugs for the treatment of severe psychiatric and metabolic diseases. The Company focuses on the development of drugs for disorders that are associated with a steroid hormone called cortisol. Corcept's principal product candidate, CORLUX, modulates the effect of cortisol by selectively blocking the binding of cortisol to one of its two known receptors, the GR-II receptor, also known as the Type II or GR receptor.