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Study of Endocrine-Related Conditions and Physiology

This observational study aims to learn more about endocrine disorders, which are conditions affecting glands that produce hormones. Researchers will study adults aged 18 and older who have known or suspected endocrine disorders. The study will also evaluate the safety and results of a modified catheter used in adrenal vein sampling, where one or two side-holes are created in the catheter to make the sampling easier. The main goal is to gather information about diagnosis and treatment of these conditions to help with future research and physician education. The study is currently unclear on its recruitment status.

Study design
This is an observational study with a planned enrollment of 1000 participants. It is not specified if it is randomized or blinded.
What's involved
You will have your medical records reviewed, a physical exam, and a medical history taken. The length and schedule of your participation will vary.
Compensation
Not stated in the trial record.
Follow-up
Not specified.

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.

NCT03867448

Study of Endocrine-Related Conditions and Physiology

Recruiting
Not specifiedAges 18–90Observational
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
~1,000 participants
Updated 2026-08-28 on ClinicalTrials.gov
What's tested:Creation of side holes in catheters for adrenal vein sampling

At a glance

Recruiting sites
1 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Diagnosis/Treatment
Measured over variable

Conditions

Endocrine Disease

Explore related trials

Adrenal Gland DisorderEndocrine System DisorderHealthyPituitary Gland Disorder

Where it's being run

1 sites across 1 states
Maryland1

Study leadership

  • Lynnette K Nieman, M.D. · PRINCIPAL_INVESTIGATOR · National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

Who to contact

Raven N McGlotten, R.N.
[email protected]
(301) 827-0190
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Do you actually qualify for this trial?

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Eligibility criteria

Inclusion

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

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.

What this trial measures

  • Diagnosis/Treatmentvariable

    determination of diagnosis and/or treatment of an endocrine disorder