5,000 healthy volunteers help scientists map the Body's hidden ecosystem
NCT ID NCT05196061
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study aims to create a detailed map of the bacteria and fungi living on the skin and in the gut of 5,000 healthy volunteers. Researchers will collect samples from different body sites and analyze how factors like diet, location, and medical history shape each person's unique microbial fingerprint. The goal is to build a reference database for future health comparisons.
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Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 5,000 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jan 2020
- Expected to finish
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Dec 2030
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Volunteers will be age 18 years or older and capable of giving informed consent and able and willing to complete all required study specified procedures
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
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: * Capable of giving informed consent. * Able and willing to complete all required specified study procedures Exclusion Criteria: * Antibiotic or antifungal use whether topical or systemic in the past 2 or 4 weeks, respectively. * Unable and/or unwilling to complete all required study procedures.
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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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University Hospitals Cleveland Medical Center
RECRUITINGCleveland, Ohio, 44106, United States
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