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Bionic breakthrough: lightweight prosthesis aims to restore natural movement

NCT ID NCT07486063

Symptom relief Sponsor: University of Utah 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 14, 2026 · Updated 1 time

Summary

This study is testing a new lightweight, motorized prosthetic leg for people who have lost a leg above the knee. The goal is to see if it helps them walk, climb stairs, and move more easily compared to their current prosthesis. About 40 adults who already use a prosthetic leg will try different settings and controllers to find what works best.

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

Early phase 1

The earliest testing in people: a first look at safety, in a very small group.

Participants

About 40 people

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

Started

Jul 2025

Expected to finish

Jun 2032

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 80 years

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.

Our inclusion criteria will be * Above-knee amputation * K2/K3/K4 ambulators * At least 18 years old * At least one year since amputation * At least six months since the definitive prosthesis fitting * Currently prescribed and using a mechanically passive or microprocessor-controlled prosthesis Our exclusion criteria will be * Over 350 lbs. body weight, the weight limit for our safety suspension systems * Cognitive deficits or visual impairment that could impair their ability to give informed consent or to follow simple instructions during the experiments * Pregnant women due to elevated safety concerns for this population * Co-morbidity that limits their ability to participate in the study protocol (e.g., stroke, pacemaker placement that would interfere with the powered prosthesis, severe ischemia, cardiac disease, etc.) * Adults who are unable to consent * Individuals who are not yet adults (infants, children, teenagers) * Individuals who use a wheelchair for mobility both outdoors and indoors because they may not be able to perform the necessary activities with their passive prosthesis or the powered prosthesis * Prisoners, due to concerns with informed consent

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As listed by the trial registrant

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

Lower limb amputation

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

  • University of Utah

    RECRUITING

    Salt Lake City, Utah, 84112, United States

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