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Zapping the brain to help stroke survivors find words again

NCT ID NCT07353879

Symptom relief Sponsor: The University of Hong Kong 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 study tested whether adding mild brain stimulation (tDCS) to a computer-based naming therapy helps Cantonese-speaking adults with aphasia after stroke find words more quickly and accurately. Six participants completed two 5-day therapy blocks—one with real stimulation and one with fake (sham)—to compare effects. The goal was to see if the combination is safe and improves naming of objects and actions.

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

6 people

The number who actually took part.

Started

Jan 2024

Finished

Jun 2025

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

40 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: * Native Cantonese speakers * Age: 40-80 years * Diagnosed with aphasia * Single left-hemispheric stroke ≥6 months prior * Premorbid right-handedness * Normal or corrected-to-normal vision * Functional hearing (with or without hearing aids) Exclusion Criteria: * History of brain surgery * Seizures within past 12 months * Conditions contraindicated for tDCS (e.g., metallic implants, pacemakers) * Prior neurological treatment (other than stroke-related) * Severe cognitive impairment * Naming accuracy \<10% or \>80% on noun/verb naming screening pretestt.

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Conditions

The condition(s) this trial relates to.

aphasia cerebral infarction

As listed by the trial registrant

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

Aphasia following cerebral infarction

Contacts and locations

Locations

  • Speech and Neuromodulation Lab

    Hong Kong, Hong Kong

  • The University of Hong Kong

    Hong Kong, Hong Kong SAR, Hong Kong

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