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Robotic knee brace could ease pain for veterans with arthritis

NCT ID NCT04653896

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
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 Results may not be published yet.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)
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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jul 24, 2026 · Updated 2 times

Summary

This study tests whether a powered knee exoskeleton called Keeogo can help veterans with knee osteoarthritis walk, climb stairs, and perform daily tasks with less pain compared to standard knee braces. Thirty-two veterans with moderate to severe knee osteoarthritis will try both devices in a lab setting. Researchers will measure walking speed, stair-climbing time, and pain levels to see if the robotic brace offers real benefits.

What this could mean

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

Active substance
Keeogo powered knee exoskeleton (device)
What this could lead to
If it works, this exoskeleton could offer veterans with knee osteoarthritis a way to move more easily and with less pain during daily activities.
What could go wrong
This is a small, early-stage study with only 32 participants, so results may not apply to everyone. The device may not be comfortable or practical for long-term 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

32 people

The number who actually took part.

Started

Jun 2021

Finished

Nov 2025

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

18 years and older

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: * medical diagnosis of Grade 3 or 4 knee OA * have a prescribed knee brace for at least three months * self-reported knee pain when standing, walking, climbing stairs, squatting, or other mobility activities * self-reported limitations to mobility and walking activities due to knee pain, stiffness, loss of range of motion Exclusion Criteria: * neurological paralysis causing an inability to stand, weight bear or take stepping movements * fixed contractures resulting in limited range of motion in the hip, knees, or ankles that prevent sitting, standing, walking, and/or squatting activities * able to walk at a normal walking speed (\>1.2 m/s) based on a 6-minute walk test (6MWT) * anthropometric incompatibility with the device * any medical complication or co-morbidity as judged by the study physician to be contraindicated for wearing the device or walking (e.g., cardiovascular disorders, pressure ulcers, open wounds, lower limb vascular disorders, or other medical conditions) * a score of \<8/10 on the MacArthur Competence Assessment Tool for Treatment (MacCAT-T) (as a proxy for cognitive competency screening); and 7) pregnancy or planning on becoming pregnant

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Conditions

The condition(s) this trial relates to.

arthritic joint disease osteoarthritis, knee

As listed by the trial registrant

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

Knee osteoarthritis

Contacts and locations

Locations

  • James J. Peters VA Medical Center, Bronx, NY

    The Bronx, New York, 10468-3904, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.