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Can a simple TENS device loosen stiff muscles in stroke survivors?

NCT ID NCT07669649

Symptom relief Sponsor: Izmir Katip Celebi University 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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 26, 2026

Summary

This study tests whether a mild electrical stimulation device (TENS) can reduce spasticity—stiff, tight muscles—in adults who had a stroke at least six months ago. Only 4 people will take part, and they will receive TENS for 30 minutes while researchers measure muscle responses. The goal is to see if this simple, non-invasive approach can offer temporary relief.

What this could mean

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

Active substance
Transcutaneous electrical nerve stimulation (TENS) device
What this could lead to
If it works, this could point toward a simple, drug-free way to temporarily ease muscle stiffness after a stroke.
What could go wrong
This is a very early, tiny study with only 4 people. It only looks at short-term effects, so any benefit may be small or not last.

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 4 people

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

Expected to start

Jun 2026

An estimate. Start dates often move.

Expected to finish

Jun 2027

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 70 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: * Age between 18 and 70 years * Post-stroke wrist flexor spasticity scored as Grade 2 or 3 on the Australian Spasticity Assessment Scale (ASAS), specifically selecting patients whose passive stretch resistance (post-catch response) can be easily overcome to ensure accurate and unconfounded electrophysiological evaluation. * At least 6 months post-stroke (chronic phase). * Provision of voluntary, written informed consent prior to study enrollment. Exclusion Criteria: * Age \<18 or \>70 year * Contraindications to transcutaneous electrical nerve stimulation (e.g., implanted electronic devices, history of epilepsy, or localized skin lesions preventing electrode placement) * Concomitant wrist contracture or pain sufficient to impede clinical evaluation * Structural abnormalities of the elbow joint obstructing median nerve stimulation * Median nerve neuropathy or injury in the affected upper extremity. * Non-stable dosage of antispastic medications within the 2 weeks prior to baseline * Initiation of medications affecting nerve conduction (e.g., antidepressants, anticonvulsants, anesthetics) within the past month; patients on a stable dose for \>1 month remain eligible * Botulinum toxin injection in the target spastic muscles within the preceding 3 months * History of neurolytic procedures targeting spasticity in the affected limb. * History of orthopedic or neurological surgery targeting spasticity in the affected limb * Cognitive impairment severe enough to compromise adherence to study protocols * Inability to maintain the required testing positions for the upper extremity joints (shoulder, elbow, forearm, and wrist) * Pregnancy or breastfeeding * Presence of active malignancy at or near the treatment area.

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As listed by the trial registrant

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

Post-stroke spasticity

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.

    Open the record ↗

  3. A doctor treating you

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Contacts and locations

Locations

  • Izmir Katip Çelebi University

    Izmir, Karabağlar, 35150, Turkey (Türkiye)

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