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Scientists launch massive microbiome collection to unlock secrets of the Body's tiny tenants

NCT ID NCT05656378

Knowledge-focused Sponsor: National Institute of Allergy and Infectious Diseases (NIAID) Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Sep 03, 2026 · Updated 19 times

Summary

This study is creating a large collection of microbiome samples—like stool, saliva, and skin swabs—from 600 people of all ages, including healthy volunteers and those with various illnesses. The goal is to build a resource for future research on how the microbiome affects health and disease. Participants provide samples at home or at the clinic, and answer questions about their health and diet.

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

About 600 people

The number the study aims to enrol. It can still change while the study runs.

Started

Mar 2023

Expected to finish

Jan 2032

An estimate. End dates often move.

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

People of all ages who meet study criteria.

Ages

Children (under 18), adults (18 to 64) and older adults (65 and over)

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * Aged \>0 years. Only participants \>3 years old will be seen at the NIH CC. * Willing to allow biological samples and data to be stored for future research. * Willing to provide at least one of the requested biospecimens. EXCLUSION CRITERIA: * An individual who has any condition that, in the judgment of the investigator, may put them at undue risk or make them unsuitable for participation in the study will be excluded. * For additional gastrointestinal and skin biopsies only, individuals on blood thinners unless they have already been stopped for the procedure, and children aged younger than 3 years. * For additional gastrointestinal biopsies only, individuals who have a history of gastrointestinal perforation with endoscopic biopsies will be excluded from the collection of additional gastrointestinal biopsies for the repository. * For additional gastrointestinal biopsies only, healthy children (\<18 years old). * For skin biopsies only, individuals who have a history of keloid formation. * For vaginal swabs and vaginal fluid only, individuals who have not started menses. * For breast milk only, non-lactating individuals.

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Conditions

The condition(s) this trial relates to.

inflammatory disease

As listed by the trial registrant

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

Healthy controls Inflammatory diseases Pediatric illnesses Pregnancy

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. 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

  • National Institutes of Health Clinical Center

    RECRUITING

    Bethesda, Maryland, 20892, United States

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