Your blood and stool could help scientists build better lab tests
NCT ID NCT03538600
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study collects biological samples like blood, stool, saliva, and skin swabs from 600 healthy volunteers aged 3 to 80. Researchers at the National Institutes of Health will use these samples to design and improve laboratory tests for other studies. Participants may be asked to provide samples multiple times over 5 years, with each visit lasting about an hour.
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Study contacts
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
Locations
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National Institutes of Health Clinical Center
RECRUITINGBethesda, Maryland, 20892, United States
Contact Phone: •••-•••-•••• Email: •••••@•••••