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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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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As listed by the trial registrant

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

Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • National Institutes of Health Clinical Center

    RECRUITING

    Bethesda, Maryland, 20892, United States

    Contact Phone: •••-•••-•••• Email: •••••@•••••