16,000 volunteers needed to unlock secrets of gut bacteria
NCT ID NCT03293758
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at how the bacteria living in your gut (the microbiome) are linked to health and diseases like cancer and heart disease. Researchers will collect information from 16,000 adults over age 40 through questionnaires and samples. The goal is to build a large database to help future research, not to test a new 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
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About 16,000 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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May 2016
- Expected to finish
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Dec 2034
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
Subjects in the United States identified at NYU clinics, community organizations, and online participant databases.
- Ages
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40 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: * Age \> 40 Exclusion Criteria: * Use of long term antibiotics. * Pregnant
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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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New York University School of Medicine
RECRUITINGNew York, New York, 10016, United States
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