Scientists infect volunteers with hookworms to test future vaccine

NCT ID NCT01940757

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study aims to find the safest and most consistent dose of hookworm larvae to use in future vaccine trials. Healthy adults aged 18 to 45 will receive different numbers of hookworm larvae through the skin. Researchers will monitor side effects and measure hookworm eggs in stool to determine the best dose for testing a hookworm vaccine.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance

Infectious hookworm larvae (Necator americanus)

What this could lead to

If successful, this study could help create a reliable model to test hookworm vaccines, potentially leading to a way to prevent hookworm infection.

What could go wrong

This is an early Phase 1 study with only 35 participants, so results may not apply broadly. The hookworm infection itself can cause temporary side effects like rash or stomach issues.

Disclaimer Read more

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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Conditions

The condition(s) this trial relates to.

ancylostomiasis Hookworm Infections hookworm infectious disease

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: •••••@•••••

Locations

  • George Washington University Medical Faculty Associates

    RECRUITING

    Washington D.C., District of Columbia, 20037, United States

    Contact

    Contact

    Contact

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