Corcept Completes Enrollment in Phase 3 Gradient Trial of Relacorilant in Patients With Adrenal Cushing’s Syndrome

Corcept Therapeutics Incorporated recently announced completion of enrollment in GRADIENT, a Phase 3 trial of its proprietary selective cortisol modulator relacorilant in patients with Cushing’s syndrome (hypercortisolism) caused by an adrenal adenoma or adrenal hyperplasia.

“Hypercortisolism with adrenal etiology affects many patients and is associated with serious cardiometabolic comorbidities, including hypertension and hyperglycemia, and increased risk of premature death,” said Bill Guyer, PharmD, Corcept’s Chief Development Officer. “GRADIENT is the first prospective placebo-controlled study to be conducted exclusively in these patients with Cushing’s syndrome. We expect data from GRADIENT in the fourth quarter of this year.”

GRADIENT is a randomized, double-blind, placebo-controlled trial conducted at sites in the United States, Europe and Israel. One-hundred thirty-seven patients were randomized 1:1 to receive relacorilant or placebo for 22 weeks. Primary endpoints are improvement in glucose metabolism and hypertension.

Cushing’s syndrome is caused by excessive activity of the hormone cortisol. Endogenous Cushing’s syndrome is an orphan disease that most often affects adults aged 20-50. Symptoms vary, but most patients experience one or more of the following manifestations: high blood sugar, diabetes, high blood pressure, upper-body obesity, rounded face, increased fat around the neck, thinning arms and legs, severe fatigue and weak muscles. Irritability, anxiety, cognitive disturbances and depression are also common. Cushing’s syndrome can affect every organ system and can be lethal if not treated effectively.

Relacorilant is a selective cortisol modulator that binds to the glucocorticoid receptor (GR), but does not bind to the body’s other hormone receptors. Corcept is studying relacorilant in a variety of serious disorders, including ovarian, adrenal and prostate cancer and Cushing’s syndrome. Relacorilant is proprietary to Corcept and is protected by composition of matter, method of use and other patents. Relacorilant has orphan drug designation in the United States and the European Union for the treatment of Cushing’s syndrome.

For over 25 years, Corcept’s focus on cortisol modulation and its potential to treat patients across a wide variety of serious disorders has led to the discovery of more than 1,000 proprietary selective cortisol modulators. Corcept’s advanced clinical trials are being conducted in patients with hypercortisolism, solid tumors, amyotrophic lateral sclerosis (ALS) and liver disease (NASH). In February 2012, the company introduced Korlym, the first medication approved by the U.S. Food and Drug Administration for the treatment of patients with Cushing’s syndrome. Corcept is headquartered in Menlo Park, California. For more information, visit