Experimental HIV vaccine enters human testing – could it train the body to fight the virus?

NCT ID NCT06796686

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

Summary

This Phase 1 trial tests a two-part HIV vaccine regimen in 42 healthy adults without HIV. The first shot primes the immune system, and later booster shots aim to mature antibody-producing cells. The main goal is to see if the regimen is safe and whether it triggers a specific immune response that could lead to broadly neutralizing antibodies against HIV.

What this could mean

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

Active substance

HIV vaccine (426c.Mod.Core-C4b and HxB2.WT.Core-C4b with adjuvants 3M-052 AF and alum)

What this could lead to

If successful, this could point toward a vaccine that trains the immune system to make broadly neutralizing antibodies against HIV.

What could go wrong

This is a very early Phase 1 trial with only 42 healthy people. It primarily checks safety, not effectiveness. The vaccine may not produce the desired immune response or could cause side effects.

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.

HIV infectious disease prevention target

As listed by the trial registrant

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

Contacts and locations

Locations

  • Bridge HIV, San Francisco Department of Public Health

    NOT_YET_RECRUITING

    San Francisco, California, 94102, United States

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

  • Brigham and Women's Hospital Vaccine CRS (BWH VCRS)

    RECRUITING

    Boston, Massachusetts, 02115, United States

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

  • Columbia Physicians & Surgeons

    NOT_YET_RECRUITING

    New York, New York, 10032, United States

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

  • NY Blood Center CRS

    WITHDRAWN

    New York, New York, 10065, United States

  • Ponce de Leon Center CRS

    NOT_YET_RECRUITING

    Atlanta, Georgia, 30308, United States

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

  • The Hope Clinic of the Emory Vaccine Research Center; Emory University

    RECRUITING

    Decatur, Georgia, 30030, United States

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