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Smart knee could help veterans walk better

NCT ID NCT07103798

Symptom relief Sponsor: VA Office of Research and Development 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Aug 25, 2026 · Updated 2 times

Summary

This study will test whether a microprocessor-controlled knee (MPK) helps 20 veterans with above-knee amputation walk better and feel more confident compared to a standard mechanical knee. Participants will first use their regular knee, then switch to the smart knee for two months. Researchers will measure walking speed, falls, and mobility confidence to see if the high-tech knee makes a real difference.

What this could mean

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

Active substance
College Park ICON microprocessor-controlled prosthetic knee
What this could lead to
If it works, this could show that a smart knee helps lower-functioning veterans walk better and feel more confident, potentially leading to wider access to advanced prosthetics.
What could go wrong
This is a very small early study with only 20 veterans, so results may not apply to everyone. The smart knee might not improve mobility enough to justify its higher cost or complexity.

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 20 people

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

Expected to start

Oct 2026

An estimate. Start dates often move.

Expected to finish

Sep 2028

An estimate. End dates often move.

Lead sponsor

A government agency

The lead sponsor is a US federal agency other than the NIH.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

45 to 85 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: * Unilateral, transfemoral amputation (any etiology) * Residual limb length classified as standard (i.e., medium) to long * Prosthesis user for at least 1 year prior to enrolling in the study * K2-level classification while using their nonmicroprocessor-controlled knee (NMPK) * Good sensation on their residual limb * Good skin integrity upon visual inspection * Presents with good socket fit based upon a standard assessment by the study prosthetist Exclusion Criteria: * Bilateral leg amputations * Individuals with a knee disarticulation

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As listed by the trial registrant

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

Limb absence Limb loss Transfemoral amputation

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    2 sites. 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

  • Edward Hines Jr. VA Hospital, Hines, IL

    Hines, Illinois, 60141-3030, United States

  • Jesse Brown VA Medical Center, Chicago, IL

    Chicago, Illinois, 60612, United States

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