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Could a gentle zing to the brain unlock lost words after stroke?

NCT ID NCT05093673

What the study statuses mean

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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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tests whether a mild electrical current applied to the back of the brain (cerebellar tDCS) can boost language therapy for people who have trouble finding words after a stroke. Sixty adults who had a left-hemisphere stroke at least six months ago and still have aphasia will receive either real or sham stimulation during naming practice. The goal is to see if this combination improves their ability to name objects and pictures.

What this could mean

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

Active substance
cathodal cerebellar transcranial direct current stimulation (tDCS) device
What this could lead to
If it works, this could point toward a new way to boost language recovery after stroke, helping people find words more easily.
What could go wrong
This is an early-stage study with only 60 participants, so results may not apply to everyone. The improvement in naming might be small or not last long.

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 60 people

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

Started

Oct 2021

Expected to finish

Apr 2028

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 to 99 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: * Chronic ischemic or hemorrhagic left hemisphere stroke * Fluent speaker of English by self-report * Age 18 or older * 6 months post onset of stroke * Diagnosis of aphasia and naming impairment using the Western Aphasia Battery-Revised Exclusion Criteria: * Lesion in the right cerebellum * Previous neurological disorder (other than stroke) affecting the brain, or any other neurodegenerative disorder or psychiatric disorder * Seizures during the previous 6 months * Uncorrected visual loss or hearing loss by self-report * Use of medications that lower the seizure threshold (e.g., methylphenidate) * Use of N-methyl-D-aspartate (NMDA) antagonists (e.g., memantine) * History of brain surgery or any metal in the head * Severely impaired auditory comprehension (lower than 2 on the Comprehension subscore on the Western Aphasia Battery-Revised) * Severely limited verbal output (lower than 2 on the Spontaneous Speech rating scale on the Western Aphasia Battery-Revised) * Individuals with severe claustrophobia, cardiac pacemakers or ferromagnetic implants, and pregnant women will be excluded from the MRI portion of the study.

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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

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  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.

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  3. A doctor treating you

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Contacts and locations

Locations

  • Johns Hopkins Hospital

    RECRUITING

    Baltimore, Maryland, 21287, United States

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