Old drug, new hope: lithium tested to stop Alzheimer's before it starts

NCT ID NCT03185208

First seen Jun 25, 2026 · Last updated Jun 26, 2026 · Updated 2 times

Summary

This study tested whether lithium, a drug used for mood disorders, can prevent Alzheimer's dementia in older adults with mild cognitive impairment (MCI). 83 participants took either lithium or a placebo for a period, and researchers measured memory, thinking skills, and brain changes. The goal was to see if lithium could slow or stop the progression to dementia.

What this could mean

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

Active substance
Lithium Carbonate
What this could lead to
If successful, this could point toward a way to slow or prevent Alzheimer's dementia in people with early memory problems.
What could go wrong
This is a small, completed phase 4 trial. Lithium has side effects and may not show clear benefits. Results may not apply to everyone.

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.

As listed by the trial registrant

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

Contacts and locations

Locations

  • University of Pittsburgh Medical Center

    Pittsburgh, Pennsylvania, 15213, United States

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