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Zapping the brain to find lost words: tiny study tests tDCS for TBI

NCT ID NCT05408975

Symptom relief Sponsor: The University of Texas at Dallas Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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

Summary

This small study tested whether a gentle electric current applied to the scalp (tDCS) could improve word-finding in 5 civilians who had a traumatic brain injury more than a year ago. Participants received both real and sham stimulation to see if the real treatment boosted verbal retrieval. The goal is to find a safe, non-drug way to ease this common long-term symptom.

What this could mean

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

Active substance
transcranial direct current stimulation (tDCS) device
What this could lead to
If it works, this could point toward a non-invasive way to help people with brain injury find words more easily.
What could go wrong
This is a very small, early study with only 5 participants. Results may not apply to everyone, and the effect may be small or temporary.

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

5 people

The number who actually took part.

Started

Jan 2023

Finished

Nov 2024

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 85 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: Participants are to be between the ages of 18-85, are non-military personnel and not veterans, and have had a traumatic brain injury (more than a year ago prior to study participation) that has led to a complaint of word finding difficulty since the brain injury, confirmed to represent a verbal retrieval deficit based on neuropsychological testing criteria. Traumatic brain injury must be in the mild to moderate range based on evaluation, including the Ohio State TBI Identification Method (administered by our research group). You must be fluent in speaking and reading English. Exclusion Criteria: * an implanted/electronic device, such as a pacemaker, metallic cranial or intracranial implant (e.g., ventriculoperitoneal shunt), or a neurostimulator (e.g., vagus nerve stimulator, spinal stimulator, deep brain stimulator, etc.). * skull defects * a history of a psychological or neurological disorder, including, dementia of any type, epilepsy or other seizure disorders, post-traumatic stress disorder, brain tumor, present drug abuse, stroke, blood vessel abnormalities in the brain, Parkinson's disease, Huntington's disease, or multiple sclerosis. * inability to give informed consent * currently pregnant * not a native English speaker

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Conditions

The condition(s) this trial relates to.

Brain Injuries, Traumatic brain injury cognitive disorder nominal aphasia traumatic brain injury

As listed by the trial registrant

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

Acquired brain injury Cognitive change Traumatic brain injury Word finding difficulty

Contacts and locations

Locations

  • The University of Texas at Dallas

    Dallas, Texas, 75235, United States

  • University of Texas Southwestern Medical Center

    Dallas, Texas, 75390, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.