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Zapping the brain to unstiffen stroke-affected arms?

NCT ID NCT05479006

Symptom relief Sponsor: Carle Foundation Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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

Summary

This study tests whether a precise form of brain stimulation called targeted high-definition tDCS can reduce arm stiffness and improve movement in 30 people who have had a stroke. The treatment aims to calm overactive brain pathways and boost damaged ones. Participants will receive different types of stimulation to see which works best.

What this could mean

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

Active substance
targeted high-definition transcranial direct current stimulation (THD-tDCS)
What this could lead to
If it works, this could point toward a non-invasive way to improve arm movement and reduce stiffness after stroke.
What could go wrong
This is a very small, early-stage study with only 30 participants. It is testing brain activity changes, not yet proven to improve daily function. Results may not apply to all stroke survivors.

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 30 people

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

Started

Sep 2022

Expected to finish

Jun 2026

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 90 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: * Paresis confined to one side, with substantial motor impairment of the paretic upper limb * Capacity to provide informed consent Exclusion Criteria: * Muscle tone abnormalities and motor or sensory impairment in the non-paretic limb * Severe wasting or contracture or significant sensory deficits in the paretic upper limb * Severe cognitive or affective dysfunction that prevents normal communication and understanding of consent or instruction * Severe concurrent medical problems (e.g. cardiorespiratory impairment) * Using a pacemaker * Metal implants in the head * Known adverse reactions to TMS and tDCS * Pregnant

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Conditions

The condition(s) this trial relates to.

stroke disorder

As listed by the trial registrant

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

Stroke

How to take part

Only the study team decides who joins. These are the ways to reach them.

  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.

    Open the record ↗

  3. 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

  • Carle Foundation Hospital

    RECRUITING

    Urbana, Illinois, 61801, United States

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