NIH launches major study to unravel hormone mysteries
NCT ID NCT03867448
First seen Jun 27, 2026 · Last updated Sep 17, 2026 · Updated 17 times
Summary
This study at the National Institutes of Health is looking at 1,000 adults with known or suspected hormone gland (endocrine) disorders. The goal is to better understand these conditions and help train doctors. Participants may receive tests, treatments, or surgery as part of their regular care.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- What this could lead to
- If successful, this study could improve how doctors diagnose and treat various hormone-related conditions.
- What could go wrong
- This is an observational and educational study, not a controlled trial. It may not lead to new treatments or generalizable findings.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 1,000 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Mar 2019
- Expected to finish
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Jan 2036
An estimate. End dates often move.
- Lead sponsor
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A government research agency
The lead sponsor is the US National Institutes of Health.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
any adult with a potential endocrine disorder; the types of disorders may vary to ensure that there is an adequate case mix of diagnoses for the training program.
- Ages
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18 to 90 years
- 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.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
* INCLUSION CRITERIA: In order to be eligible to participate in this study, an individual must meet all the following criteria: * Adult men and women age 18 years or older. * Known or suspected endocrine disorders requiring clinical screening, management and/or treatment and follow-up. * Stated willingness to comply with all study procedures and availability for the duration of the study EXCLUSION CRITERIA: * Unstable participants and participants with severe organ failure, or those with a condition or medical treatment that may affect/limit the endocrine work-up and exhaust Clinical Center, IETP resources will be excluded if appropriate. * Inability of a subject to adhere to a proposed schedule of visits. * Inability to provide informed consent.
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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.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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National Institutes of Health Clinical Center
RECRUITINGBethesda, Maryland, 20892, United States
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