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

NCT ID NCT05326750

Symptom relief Sponsor: Kuopio University Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

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.

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

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 200 people

The number the study aims to enrol. It can still change while the study runs.

Started

Nov 2022

Expected to finish

Jul 2032

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Mild Cognitive Impairment due to Alzheimer's disease * Dementia with Lewy Bodies * Frontotemporal dementia * Idiopathic normal pressure hydrocephalus (iNPH) Exclusion Criteria: * History of seizures * Pregnancy * Metal implants in the head (except dental fillings) * Electronic implants (i.e. pace-maker, implanted medical pump) * Age \<18 years

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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.

Alzheimer disease Dementia with lewy bodies Frontotemporal dementia

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Kuopio University Hospital

    RECRUITING

    Kuopio, Finland

More trials for these conditions

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