This was a Phase 2, open-label study with two dose groups, each with a two-step dose escalation, designed to evaluate the safety and efficacy of CORT125134 for the treatment of endogenous Cushing's syndrome. CORT125134 was administered orally once daily for 16 weeks with dose escalations occurring every 4 weeks.
Pharmacokinetics (PK) profiles were generated at every dose level. A data review committee reviewed PK and safety data and recommended the final plan for dose escalation in Group 2.