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Could a daily probiotic help protect aging brains?

NCT ID NCT06670807

Recruiting now Disease control Sponsor: Universidad Complutense de Madrid Source: ClinicalTrials.gov ↗

First seen Jul 16, 2026 · Last updated Jul 17, 2026 · Updated 1 time

Summary

This study tests whether a probiotic supplement taken daily for 16 weeks can improve cognitive function in older adults with mild cognitive impairment (MCI), a condition that raises the risk of dementia. One hundred participants aged 60 to 85 will be randomly assigned to receive either the probiotic or a placebo. Researchers will measure changes in brain activity, memory tests, and gut bacteria to see if the supplement offers any benefit.

What this could mean

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

Active substance
a probiotic dietary supplement called AB-MIND+CECT7481
What this could lead to
If it works, this could point toward a simple, safe way to slow or reverse early memory decline and reduce dementia risk.
What could go wrong
This is a small, early-stage trial with only 100 participants, and the effect on cognition may be modest or absent. Probiotics are generally safe but individual results can vary.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

Cognitive Dysfunction

As listed by the trial registrant

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

MILD COGNITIVE IMPAIRMENT (MCI)

Contacts and locations

Study contacts

  • Contact

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

Locations

  • Facultad de Farmacia Universidad Complutense de Madrid (UCM) Plaza Ramón y Cajal

    NOT_YET_RECRUITING

    Madrid, Madrid, 28040, Spain

  • Hospital Clínico San Carlos

    RECRUITING

    Madrid, Madrid, 28040, Spain

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

    Contact

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