New hormone treatment shows promise for rare adrenal disorder
NCT ID NCT05299554
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at the long-term safety of a medication called Chronocort in 76 people aged 16 and older with congenital adrenal hyperplasia (CAH), a condition where the body can't make enough cortisol. Researchers monitored for signs of over- or under-treatment, adrenal crises, and side effects over time. The goal was to see if Chronocort is safe for ongoing use to control the disease.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 3
Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.
- Participants
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76 people
The number who actually took part.
- Started
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Apr 2022
- Finished
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Jan 2026
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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16 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Participants with Congenital Adrenal Hyperplasia (CAH) who have successfully completed Chronocort study DIUR-006 (sites in France and US only) or study DIUR-014. * Participants who are capable of giving signed informed consent/assent, which includes compliance with the requirements and restrictions listed in the study's informed consent form (ICF) and in the protocol. Exclusion Criteria: * Participants with clinical or biochemical evidence of hepatic or renal disease e.g., creatinine \>2 times the upper limit of normal (ULN) or elevated liver function tests (alanine aminotransferase \[ALT\] or aspartate aminotransferase \[AST\] \>2 times the ULN). * Participants with a history of malignancy (other than basal cell carcinoma successfully treated \>26 weeks prior to entry into the study). * Participants with a history of bilateral adrenalectomy. * Participants with any other significant medical or psychiatric conditions that in the opinion of the Investigator would preclude participation in the study. * Participants with a co-morbid condition requiring daily administration of a medication or consumption of any material that interferes with the metabolism of glucocorticoids. * Participants on regular daily inhaled, topical, nasal, or oral steroids for any indication other than CAH. * Participants anticipating regular prophylactic use of additional steroids e.g., for strenuous exercise. * Participation in another clinical study of an investigational or licensed drug or device within 3 months prior to inclusion in this study, except for another clinical study with the current formulation of Chronocort. * Females who are pregnant or lactating. * Participants, who in the opinion of the Investigator, will be unable to comply with the requirements of the protocol. * Participants who routinely work night shifts and so do not sleep during the usual night-time hours. * Participants with a body weight of 50 kg or less (Note: this exclusion criterion is only applicable for French sites).
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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National Institutes of Health Center
Bethesda, Maryland, 20892-1932, United States
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Neurocrine Investigational Site in Asahi-ku
Yokohama, Kanagawa, 241-0811, Japan
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Neurocrine Investigational Site in Caen
Caen, 14033, France
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Neurocrine Investigational Site in California
Los Angeles, California, 90027, United States
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Neurocrine Investigational Site in California
Orange, California, 92868, United States
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Neurocrine Investigational Site in Florida
Jacksonville, Florida, 32207, United States
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Neurocrine Investigational Site in Iowa
Iowa City, Iowa, 52242, United States
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Neurocrine Investigational Site in Michigan
Ann Arbor, Michigan, 48114, United States
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Neurocrine Investigational Site in Minnesota
Rochester, Minnesota, 55901, United States
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Neurocrine Investigational Site in Nevada
Las Vegas, Nevada, 89148, United States
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Neurocrine Investigational Site in Okura
Setagaya-Ku, Tokyo, 157-8535, Japan
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Neurocrine Investigational Site in Paris
Paris, 75651, France
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Neurocrine Investigational Site in Pessac
Pessac, 33604, France
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Neurocrine Investigational Site in Texas
Dallas, Texas, 75235, United States
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Neurocrine Investigational Site in Toulouse
Toulouse, 31059, France
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Neurocrine Investigational Site in Toulouse (Children's hospital)
Toulouse, 31059, France
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Neurocrine Investigational Site in Toyama
Shinjuku-Ku, Tokyo, 162-8655, Japan
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Neurocrine Investigational Site in Washington
Seattle, Washington, 98105, United States
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Neurocrine Investigational Site in Wisconsin
Milwaukee, Wisconsin, 53226, United States
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Neurocrine Investigational Site in Yushima
Bunkyō-Ku, Tokyo, 113-8519, Japan
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Neurocrine investigational Site in Lyon
Lyon, 69677, France
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Can a Timed-Release hydrocortisone pill match the Body's overnight hormone rhythm?
- Can a modified hydrocortisone mimic the Body's natural cortisol rhythm?
- Can a Twice-Daily hormone pill match standard care for CAH?
- Could a simple saliva test replace blood draws for hormone monitoring?
- New program aims to smooth healthcare transition for teens with rare hormone disorder
- New hope for CAH: drug may slash steroid use