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Gene hunt: scientists probe rare connective tissue variants

NCT ID NCT04664478

Knowledge-focused Sponsor: National Heart, Lung, and Blood Institute (NHLBI) Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 24, 2026 · Last updated Aug 07, 2026 · Updated 4 times

Summary

This completed study looked at 32 people with known genetic changes in connective tissue genes to better understand how these changes affect overall health. Participants underwent a range of medical tests and exams over 3-5 days. The goal was to gather information, not to test a treatment.

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

32 people

The number who actually took part.

Started

Apr 2021

Finished

Aug 2025

Lead sponsor

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

Patients with variation in our genes of interest(relevant genotypes) to identify relevant phenotypes in the cohort via deep phenotyping.

Ages

2 to 100 years

Sex

Anyone

Healthy volunteers

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

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 of the following criteria: 1. Participant must have a genetic variant in one of the connective tissue target genes identified on previous research or clinical genetic testing. A clinical or research report of the variant in question will be reviewed at the time of referral. 2. This variant must be of sufficient interest for focused study to the clinical research team. Interest may be based on a variety of factors including: its population frequency, potential pathogenicity, or apparent genotype/phenotype associations in the medical record, among others. 3. Male or female, within the ages of 2 and 100 years old. EXCLUSION CRITERIA: 1\. Pregnancy or Nursing. Rationale for excluding pregnant women We do believe that pregnancy likely impacts connective tissue disease and deserves focused study. Unfortunately, we do not believe that our current study design will allow us to attract a large enough number of currently pregnant women to adequately power a direct study into the impacts of connective tissue disease on pregnancy. And the single visit nature of the study precludes following an individual throughout their pregnancy. As such, we have chosen to exclude currently pregnant women from the study. We do, however, welcome their participation once pregnancy is done. We expect that our history taking will include questions about pregnancy and so may still collect historical data related to these variants and pregnancy.

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Conditions

The condition(s) this trial relates to.

Aortic Stenosis, Supravalvular connective tissue disorder vascular disorder

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Abnormal elastogenesis Connective tissue diseases Vascular diseases

Contacts and locations

Locations

  • National Institutes of Health Clinical Center

    Bethesda, Maryland, 20892, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.