Corcept Therapeutics Inc. is a pharmaceutical company engaged in the discovery, development and commercialization of drugs for the treatment of severe metabolic, psychiatric and oncologic disorders. The Company's focus is on those disorders that are associated with a steroid hormone cortisol. Elevated levels and abnormal release patterns of cortisol have been implicated in a range of human disorders. The Company is developing mifepristone, a compound that modulates the effects of cortisol by acting as a competitive antagonist at the glucocorticoid receptor (GR). It has also discovered approximately three structurally distinct series of selective cortisol modulators, all of which share mifepristone's affinity for GR but, unlike mifepristone, do not bind to the progesterone receptor, and so do not terminate pregnancy or cause other side effects associated with progesterone receptor antagonism. It has begun pre-clinical and clinical development of its lead compounds from these series.