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Ultrasound could give amputees a better grip on prosthetics

NCT ID NCT05376332

Knowledge-focused Sponsor: George Mason 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
Registered, but not yet taking participants.
By invitation only This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 is testing a new type of prosthetic hand that uses ultrasound to read muscle movements, instead of the usual electrical sensors. The goal is to see if this makes the hand easier and more natural to control. Sixteen people with below-elbow amputations will compare the new system to standard myoelectric prosthetics in lab tasks and daily activities.

What this could mean

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

Active substance
Sonomyographic prosthesis (ultrasound-controlled prosthetic hand)
What this could lead to
If successful, this could lead to more intuitive and functional prosthetic control for upper limb amputees, potentially reducing device abandonment.
What could go wrong
This is a very small early-stage study (16 participants) comparing a new device to existing methods. The technology may not prove superior or practical for daily use.

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 16 people

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

Started

Nov 2023

Expected to finish

Jul 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 65 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: * Transradial unilateral amputation * Fluent in English * For active comparator intervention 1 (myoelectric direct control prosthesis): Naïve to use of myoelectric prosthesis (i.e., uses body-powered prosthesis or has not used a myoelectric prosthesis for at least 3 years) * For active comparator intervention 2 (myoelectric pattern recognition control prosthesis): Currently uses a commercially-available pattern recognition system (IBT Sense) with a terminal device having at least two degrees of freedom Exclusion Criteria: * Significant cognitive deficits as determined upon clinical evaluation * Significant neurological deficits as determined upon clinical evaluation * Significant physical deficits of the residual limb impacting full participation in the study as determined upon clinical evaluation * Uncontrolled pain or phantom pain impacting full participation in the study as determined upon OT evaluation * Serious uncontrolled medical problems as judged by the project therapist

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As listed by the trial registrant

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

Amputation Prosthesis user

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

    The full official record for this study. This one lists no contact details, but it is the first place any would appear.

    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

  • Peterson Health Sciences Hall

    Fairfax, Virginia, 22030, United States

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