A Ph2b to Evaluate Tildacerfont in the Reduction of Glucocorticoid Steroid Doses in Adult CAH (NCT04544410) | Clinical Trial Compass
TerminatedPhase 2
A Ph2b to Evaluate Tildacerfont in the Reduction of Glucocorticoid Steroid Doses in Adult CAH
Stopped: Study did not meet its primary endpoint.
United States, Australia, Brazil100 participantsStarted 2021-02-22
Plain-language summary
An investigation of the ability of Tildacerfont to reduce supraphysiologic glucocorticoid dosing in classic Congenital adrenal hyperplasia (CAH) subjects up to 76 weeks of treatment. Optional open label extension up to 240 weeks.
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
. Male and female subjects ≥18 years old at screening
. Has a known childhood diagnosis of classic CAH due to 21-hydroxylase deficiency based on genetic mutation in CYP21A2 and/or documented (at any time) elevated 17-hydroxyprogesterone (17-OHP) and currently treated with hydrocortisone (HC), HC acetate, prednisone, prednisolone, methylprednisolone, dexamethasone (or a combination of the aforementioned glucocorticoid \[GCs\])
. Has lower limit of detection ≤ androstenedione (A4) ≤ 2.5x upper limit of normal (ULN) at screening measured before a morning GC dose
. Has been on a stable, supraphysiologic dose of GC replacement (defined as ≥30 mg/day and ≤60 mg/day in HCe) for ≥1 month before screening
. For subjects with the salt-wasting form of CAH, subject has been on a stable dose of mineralocorticoid replacement for ≥1 month before screening
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
Change in Total Daily GC Dose in Subjects With Classic CAH Over the 24-week, Double Blind, Placebo-Controlled Treatment Period
. Agrees to follow contraception guidelines. Male subjects must also agree to refrain from donating sperm throughout the Treatment Period and for 90 days after the last dose of study drug
. Is able to understand all study procedures and risks involved and provides written informed consent indicating willingness to comply with all aspects of the protocol
Exclusion criteria
. Has a known or suspected diagnosis of any other known form of classic CAH (not due to 21-hydroxylase deficiency)
. Has a history that includes bilateral adrenalectomy or hypopituitarism
. Has a history of allergy or hypersensitivity to tildacerfont, any of its excipients, or any other CRF1 receptor antagonist
. Shows clinical signs or symptoms of adrenal insufficiency
. Has had a clinically significant unstable medical condition, medically significant illness, or chronic disease occurring within 30 days of screening, including but not limited to:
. An ongoing malignancy or \<3 years of remission history from any malignancy, other than successfully treated localized skin cancer
. eGFR of \<45 mL/min/1.73 m2
. Current or history of liver disease (with the exception of Gilbert's syndrome)