Can a 5-day brain zap fix memory after stroke?
NCT ID NCT07573501
First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tests whether a gentle, non-invasive electrical brain stimulation (tACS) can improve working memory in people who have memory problems after a stroke. 24 participants will receive either real or fake stimulation for 40 minutes a day for 5 days, alongside cognitive therapy. Researchers will measure memory performance and brain activity before and after treatment.
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)
- What this could lead to
- If it works, this could point toward a non-drug way to help stroke survivors regain memory and thinking skills.
- What could go wrong
- This is a very small, early-stage trial with only 24 people. The effect may be small or not last, and results may not apply to all stroke patients.
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
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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
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About 24 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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May 2026
An estimate. Start dates often move.
- Expected to finish
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May 2027
An estimate. End dates often move.
- Lead sponsor
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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
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30 to 80 years
- Sex
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Anyone
- Healthy volunteers
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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 Hide 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: * Meeting the diagnostic criteria for hemorrhagic or ischemic stroke in the Chinese Guidelines for the Prevention and Treatment of Cerebrovascular Diseases(2nd edition), with the first onset, single hemisphere stroke, and confirmed by CT or MRI,course of diease 1-6 months; * Age ranging from 30 to 80 years old; * Native language is Mandarin or Cantonese; * Right-handed; * Diagnosed with PSCI by the MoCA scale; * Able to cooperate in completing the speech repetition test; * Normal hearing. Exclusion Criteria: * Currently receiving non-invasive brain stimulation treatment; * Lesions involving the left DLPFC brain regions; * History of epilepsy, mental illness,or other neurological or mental disorders; * Any contraindications for transcranial electrical stimulation.
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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.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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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
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Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University
Guangzhou, Guangdong, China
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