Could a gentle brain zap boost memory in Alzheimer's and lewy body dementia?

NCT ID NCT05326750

First seen Jun 26, 2026 · Last updated Jun 26, 2026

Summary

This study tests whether a gentle, non-invasive brain stimulation technique called tACS can improve memory and thinking in people with Alzheimer's disease, frontotemporal dementia, Lewy body dementia, and related conditions. Two hundred participants will receive either real or sham (fake) stimulation over four sessions. Researchers will measure changes in memory, attention, and other thinking skills to see if the stimulation helps.

What this could mean

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

Active substance

transcranial alternating current stimulation (tACS) device

What this could lead to

If it works, this could point toward a non-invasive, drug-free way to ease memory and thinking problems in several types of dementia.

What could go wrong

This is an early-stage study with only a single session of stimulation, so any benefits may be small or temporary. The results may not apply to all patients or lead to a lasting treatment.

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 frontotemporal dementia Lewy body dementia Lewy Body Disease normal pressure hydrocephalus

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: •••••@•••••

Locations

  • Kuopio University Hospital

    RECRUITING

    Kuopio, Finland

    Contact