Trial Against INtractable Type 2 Diabetes (CAPTAIN-T2D)

CAPTAIN-T2D will take place in two parts. Part 1 (Screening) will evaluate patients with type 2 diabetes and elevated cortisol risk factors for trial eligibility and the presence of elevated cortisol. Participants deemed eligible from Part 1 will be randomized to either clofutriben or placebo in the double-blind (participant and investigator), dose-ranging, interventional Part 2 (Treatment).

CAPTAIN-T2D is a two-part, multicenter, randomized, double-blind, parallel group, placebo- controlled trial of the 11-hydroxysteroid dehydrogenase type 1 (HSD-1) inhibitor clofutriben. The primary objectives of this trial are to characterize the relationship of clofutriben dose to improved glycemic control, and to identify one or more doses suitable for Phase 3 evaluation, in patients with T2D and elevated cortisol. The trial consists of two parts. Part 1 (Screening) will last between approximately 5 to 9 weeks for most participants. The screening period duration allows for (sequentially) initial eligibility screen, dexamethasone suppression test, and further eligibility assessments. During Part 2 (Treatment), participants will be randomized to placebo or one of four clofutriben doses. Part 2 will last 24 weeks with a follow-up phone call 4 weeks after the last dose of trial medication.