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Zapping the brain to restore words: small study tests tACS for aphasia

NCT ID NCT07510464

Symptom relief Sponsor: QVITI S.A. Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This small pilot study tested whether a gentle electrical current applied to the brain (tACS) could improve naming ability in 11 people with chronic aphasia after a stroke. Participants received either real or sham stimulation during language training over two weeks. The goal was to see if the real stimulation led to better naming of pictures they previously couldn't name.

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-invasive way to boost language recovery after stroke.
What could go wrong
This is a very small pilot study (11 people) with no phase, so results may not apply widely. The effect may be small or due to placebo.

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

11 people

The number who actually took part.

Started

Dec 2019

Finished

Dec 2021

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

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

Ages

18 to 80 years

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: * presence of aphasia (Broca's or mixed) * first ever stroke with one major lesion in left hemisphere * chronic stage (at least 6 months since onset) * right handedness * capability to give an informed consent * Native Polish speaker * 5-80% correct responses in the first naming task Exclusion Criteria: * history of neurosurgical interventions * history of other neurological or psychiatric conditions (including dementia, head trauma, alcohol abuse etc.) * reports of seizures during last 36 months * serious vision disorders * medications increasing risk of seizures or influencing neuroplasticity * electrically, magnetically or mechanically activated implants or other systems sensitive to electricity in the body * history of language and/or speech disorders or intellectual disability in childhood * bilingualism * pregnancy * claustrophobia

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Conditions

The condition(s) this trial relates to.

aphasia stroke disorder

As listed by the trial registrant

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

Aphasia Stroke

Contacts and locations

Locations

  • "Projekt Samodzielni" sp. z o.o.

    Warsaw, Masovian Voivodeship, 02-366, Poland

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