Clinical trial Recruiting at 1 site Interventional Ages 18 to 65

Evaluating a new prosthesis control system for amputees

Official title: Clinical Feasibility of the IMES Transradial Prosthesis

Run by Össur Iceland ehf · NCT04936789 · Data updated 2026-11-12

This study is testing a new way for amputees to control a prosthetic hand using special sensors implanted in their arm muscles to see how well it works in everyday life.

Quick facts

Study typeInterventional
Ages18 Years to 65 Years
SexAll
Enrollment3 (estimated)
SponsorÖssur Iceland ehf
Industry-sponsored
Locations1 site (Glasgow, Glasgow)
StatusRecruiting
StartedJanuary 1, 2023
Main results expectedJanuary 2028
Study endsJanuary 2028
Registry record updatedOctober 21, 2026
Trial IDNCT04936789 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are individuals with unilateral acquired transradial amputations who have sufficient residual muscle for implantation.

Probably not a fit

Patients with neurological disorders or other conditions that may hinder accurate control of the prosthesis will not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study assesses the feasibility of using implanted myoelectric sensors (IMES) to control a transradial prosthesis in amputee subjects. The IMES will be implanted into the residual forearm muscles of three participants, allowing them to wirelessly transmit muscle signals to an electromechanical prosthetic wrist and hand. After a recovery period, subjects will undergo training and then use the custom-fit prosthesis at home for approximately four months, with follow-up visits to evaluate usability and functionality.

Why it matters

Potential benefit: If successful, this approach could significantly enhance the control and functionality of prosthetic limbs for amputees.

How similar studies have gone: While the use of myoelectric sensors in prosthetics is established, this specific approach with IMES is novel and has not been extensively tested in similar studies.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* (unilateral acquired transradial) amputation
* residual limb size requirements to fit investigational device componentry
* at least 6 residual muscle locations available for implantation
* good compliance with health service (rehabilitation)
* willing to undergo surgical implantation of IMES Sensor implants
* experience with myoelectric upper limb prostheses
* using own myoelectric device approximately 6-8h/day
* able to provide informed consent and attend the study visits

Exclusion Criteria:

* any condition which in the opinion of the investigator poses a risk to health
* neurological disorder that may prohibit accurate control
* major injury proximal to the level of amputation
* neuromuscular disorder
* nerve transection or palsy that may cause de-innervation of muscles planned for implantation
* allergy to implanted materials
* existing active implant

Where it's running

  • NHS Greater Glasgow and Clyde
    Glasgow, Glasgow, United Kingdom
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.