Experimental Alzheimer's vaccine aims to clear brain plaques

NCT ID NCT05462106

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests an experimental vaccine called ACI-24.060 in people with early Alzheimer's and non-demented adults with Down syndrome. The vaccine is designed to help the immune system clear amyloid plaques from the brain, which are linked to Alzheimer's. Researchers will check if it is safe and if it can slow memory loss. The trial involves 304 participants and compares the vaccine to a placebo.

What this could mean

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

Active substance

ACI-24.060 (an experimental vaccine that targets amyloid plaques in the brain)

What this could lead to

If it works, this vaccine could slow or stop memory decline in early Alzheimer's and in adults with Down syndrome, offering a new way to control the disease.

What could go wrong

This is an early-phase trial (Phase 1/2) with only 304 participants, so it may not prove effective. The vaccine could cause side effects like brain swelling or allergic reactions, and it requires ongoing monitoring.

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.

Alzheimer disease brain disorder central nervous system disorder dementia Down syndrome Plaque, Amyloid

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

  • Barrow Neurological Institute

    WITHDRAWN

    Phoenix, Arizona, 85013, United States

  • Cambridge and Peterborough NHS Foundation Trust - Windsor Research Units

    RECRUITING

    Cambridge, United Kingdom

  • Charter Research, LLC

    RECRUITING

    Orlando, Florida, 32803, United States

  • Charter Research, LLC

    RECRUITING

    The Villages, Florida, 32162, United States

  • Flourish Research

    NOT_YET_RECRUITING

    Matthews, North Carolina, 28105, United States

  • Fundació ACE, Institut Català de Neurociències Aplicades

    RECRUITING

    Barcelona, Spain

  • Headlands Horizons LLC

    NOT_YET_RECRUITING

    Orlando, Florida, 32819, United States

  • Hospital Clínico San Carlos

    RECRUITING

    Madrid, Spain

  • Hospital Universitario Marqués de Valdecilla

    RECRUITING

    Santander, Spain

  • Hospital Universitario Virgen De Las Nieves

    WITHDRAWN

    Granada, Spain

  • Hospital Universitario de la Princesa

    RECRUITING

    Madrid, Spain

  • Hospital Universitario y Politécnico La Fe

    RECRUITING

    Valencia, Spain

  • Hospital de la Santa Creu i Sant Pau

    RECRUITING

    Barcelona, Spain

  • Indiana University / IU Health

    RECRUITING

    Indianapolis, Indiana, 46202, United States

  • K2 Medical Research The Villages LLC

    RECRUITING

    Lady Lake, Florida, 32159, United States

  • Liverpool University Hospitals NHS Foundation Trust

    RECRUITING

    Liverpool, United Kingdom

  • Massachusetts General Hospital

    RECRUITING

    Boston, Massachusetts, 02114, United States

  • NeuroClin Limited

    NOT_YET_RECRUITING

    Warrington, WA3 7PB, United Kingdom

  • Neurology Clinical, P.C.

    RECRUITING

    Cordova, Tennessee, 38018, United States

  • Oxford Health NHS Foundation Trust

    RECRUITING

    Oxford, United Kingdom

  • Re:Cognition Health Limited

    RECRUITING

    London, United Kingdom

  • South London and Maudsley NHS Foundation Trust of The Maudsley Hospital

    RECRUITING

    London, United Kingdom

  • The Washington University

    RECRUITING

    St Louis, Missouri, 63130, United States

  • UT Health San Antonio

    WITHDRAWN

    San Antonio, Texas, 78229, United States

  • University of Kansas Medical Center Research Institute

    RECRUITING

    Fairway, Kansas, 66205-2513, United States

  • Vanderbilt University Medical Center

    RECRUITING

    Nashville, Tennessee, 37232-2103, United States