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Determination of efficacy of sustained motor contraction generated using StimWave peripheral nerve stimulator

NCT ID NCT07810712

NEW Sponsor: Walton Centre NHS Foundation Trust Source: ClinicalTrials.gov ↗

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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 Results may not be published yet.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)
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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
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Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Sep 09, 2026 · Last updated Sep 09, 2026

Summary

Paralysis is one of the most disabling features of Spinal cord injury and stroke. In select cases, where the nerve is intact, stimulation can achieve meaningful muscle contraction e.g. to restore grip and release function. Previously, products to serve this purpose had been developed and successfully implanted (Freehand device). However, they had technical and cost limitations and have gone out of production. We aim to investigate if a simple implantable and commercially available system could replicate the same function. Patients implanted with a wireless peripheral nerve stimulation (PNS) system for chronic pain in the upper limb shall be identified and approached for consent. Surface electromyography (EMG, baseline and with active contraction) shall be performed to confirm intact motor nerves. Baseline MRC (Medical Research Council Scale for Muscle Strength) grade shall be assessed. PNS shall be programmed to produce muscle contraction (within FDA approved safe limits for the device) with the EMG monitoring. The muscle contraction shall be recorded on video for further evaluation. Strength of contraction shall be assessed on the MRC scale. Stimulation parameters shall be then re-adjusted to pain-relief setting. Neurological examination shall be performed and return to baseline EMG ascertained. Data shall be analysed and the Study shall end when the data for the last participant shall be gathered.

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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

4 people

The number who actually took part.

Started

Feb 2023

Finished

Aug 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 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * Male or Female, aged 18 years or above with implanted Curonix (formerly: Stimwave) PNS for radial, ulnar or median nerve; * Functioning lower motor neuron (LMN) pathway determined by baseline EMG. Exclusion Criteria: * Age \<18yr; * Myopathy and other LMN disorders; * Impaired LMN pathway determined by EMG.

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Conditions

The condition(s) this trial relates to.

spinal cord injury stroke disorder

As listed by the trial registrant

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

Paralysis arm Spinal cord injury Stroke

Contacts and locations

Locations

  • The Walton Centre NHS Foundation Trust

    Liverpool, L9 7LJ, United Kingdom

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