Zapping the brain to reconnect with muscles after stroke
NCT ID NCT07121582
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at how the brain talks to muscles in people who have had a stroke. Researchers will use gentle, non-invasive brain stimulation and measure brain and muscle activity while participants squeeze a device with their weak hand. The goal is to see if this stimulation can improve communication between the brain and muscles and help with hand control. About 20 people who had a stroke at least 6 months ago will take part in a single 3-hour visit.
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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 20 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Dec 2025
- Expected to finish
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Jan 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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45 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.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Chronic (≥ 6 months) unilateral cortical/subcortical ischemic or hemorrhagic stroke as confirmed by medical records * Upper extremity weakness (hemiparesis) contralateral to the stroke * Sufficient cognitive capacity (Montreal Cognitive Assessment ≥ 21 points), communication function, and English proficiency to understand and safely comply with all study procedures * Ipsilesional motor-evoked potential response * Able to perform isometric grip task by making a fist with their stroke-affected hand (hand contralateral to the stroke) Exclusion Criteria: * Contraindications to TMS (seizure activity within past 2 years, pregnancy, indwelling metal) * Cognitive deficits (Montreal Cognitive Assessment \< 21 points) * Concurrent physical/occupational therapy and/or clinical trial participation related to stroke * Injury or conditions that impact affected extremity-use beyond stroke (e.g., arthritis) * Impaired vision despite use of aid (e.g. glasses, contacts, etc.) * Cerebellar stroke * Major medical/neurological/psychiatric condition impacting physical function in the opinion of the physician co-investigator * Absent ipsilesional motor-evoked potential response
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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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Bondurant Hall
RECRUITINGChapel Hill, North Carolina, 27514, United States
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Other studies related to the condition(s) this trial covers.
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