Could a daily probiotic be safe for Alzheimer's? new study aims to find out

NCT ID NCT07413744

Not yet recruiting Symptom relief Sponsor: University of Wisconsin, Madison Source: ClinicalTrials.gov ↗

First seen Jun 25, 2026 · Last updated Jul 02, 2026 · Updated 2 times

Summary

This Phase 2 trial will test whether taking a daily probiotic supplement for six months is safe and practical for people with early Alzheimer's or those at risk. Researchers will enroll 40 participants aged 60 and older. The study does not test whether the probiotic improves memory or slows the disease—only whether it can be taken without serious side effects and whether people will stick with it.

What this could mean

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

Active substance: Probiotic supplement (oral capsule taken daily)
What this could lead to: If successful, this could show that probiotics are safe and practical for people with early Alzheimer's, paving the way for larger studies on whether they can ease symptoms or slow decline.
What could go wrong: This is a small, early-stage study focused only on safety and feasibility, not on whether the probiotic actually helps Alzheimer's. It may not show any benefit, and results may not apply to broader populations.

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

Get updates

Get notified about this study

Sign up to get updates when this study changes or when new studies for ALZHEIMER DISEASE are added.

Our safety recommendation!

By submitting, you agree to our Terms of use

Conditions

The condition(s) this trial relates to.

Alzheimer disease

As listed by the trial registrant

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

ALZHEIMER DISEASE

Contacts and locations

Locations

University of Wisconsin Hospitals and Clinics

Madison, Wisconsin, 53792, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.