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MIT's smart knee could make walking easier for amputees

NCT ID NCT06700668

Disease control Sponsor: Massachusetts Institute of Technology Source: ClinicalTrials.gov ↗

What the study statuses mean

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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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tests a powered knee prosthesis developed at MIT for people who have lost a leg above the knee. Seven participants will use the device to see if it reduces walking effort and improves control and comfort. The goal is to help amputees walk more naturally and with less energy.

What this could mean

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

Active substance
MIT powered knee prosthesis
What this could lead to
If successful, this could lead to a more natural and less tiring walking experience for people with above-knee amputations.
What could go wrong
This is a very small early study with only 7 participants, so results may not apply to everyone. The device may not work better than current prosthetics for all users.

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

7 people

The number who actually took part.

Started

Apr 2008

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

22 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: * Male or Female age 22-65. * The patient must have a unilateral transfemoral amputation . * The patient must have the ability to ambulate at variable cadence (an expected lower extremity prosthesis functional level of K3 or above). * The patient must have adequate socket to support the device. Exclusion Criteria: * Women who are pregnant. * Severe co morbidity, atypical skeletal anatomy, or poor general physical/mental health that, in the opinion of the Investigator, will not allow the subject to be a good study candidate (i.e. other disease processes, mental capacity, substance abuse, shortened life expectancy, vulnerable patient population, BMI \>40, etc.).

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As listed by the trial registrant

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

Transfemoral amputation

Contacts and locations

Locations

  • MIT Media Lab

    Cambridge, Massachusetts, 02139, United States

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