Trial Against INtractable Type 2 Diabetes (CAPTAIN-T2D) (NCT07296484) | Clinical Trial Compass
RecruitingPhase 2
Trial Against INtractable Type 2 Diabetes (CAPTAIN-T2D)
United States1,500 participantsStarted 2025-11-29
Plain-language summary
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).
Who can participate
Age range
18 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria:
* From Screening 1
* Age at least 18 years.
* HbA1c ≥7.5% documented within 3 months prior to Screening 1. (The historical HbA1c value must have been obtained after at least 2 months on the current \[as of Screening 1\] regimen).
* Treatment with stable and adequate doses of ≥2 injectable or oral ADMs. (An ADM will be deemed stable if the dose has been the same for at least 3 months prior to Screening 1 and without change between Screening 1 and Day 1) (An ADM dose will be deemed adequate if it is at or above the maximal labelled dose, or a sub-maximal, but not starting, dose if limited by tolerability (confer with MM if less than half-maximal dose).
* Adequate total daily insulin is defined as at least 0.3 units/kg/day. Insulin dose will be deemed stable with adjustments of up to 20% total daily dose during the 3 months prior to Screening 1 or between Screening 1 and Day 1.
* Use of insulin pumps or insulin brand changes (e.g., due to insurance change or shortage) are to be discussed with the MM.
* At least one of the following
* ≥3 stable and adequate ADMs;
* diabetes complication (retinopathy, nephropathy, neuropathy, atherosclerotic heart disease);
* hypertension requiring ≥2 adequately dosed AHMs;
* adequately dosed basal or basal plus prandial insulin in addition to at least 1 other ADM; and
* adequately dosed incretin agonist (a single or combination agent counts as one ADM) in addition to at least 1 other ADM;
…
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Percentage of patients with both morning serum cortisol >1.8 mg/dL and morning plasma dexamethasone >=140 ng/dL (single composite endpoint) after a single dexamethasone 1 mg dose taken the prior night.
Timeframe: 8-10 hours after the dexamethasone 1 mg dose.
2
Glycated hemoglobin A1c (%) change from baseline to Week 24 by treatment.