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Which prosthetic foot feels best? a Head-to-Head test of five designs

NCT ID NCT05964855

Symptom relief Sponsor: Massachusetts Institute of Technology 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 20, 2026 · Last updated Aug 21, 2026 · Updated 1 time

Summary

This study compares five different prosthetic foot-ankle mechanisms to see which ones people with below-knee amputations prefer and how each affects walking. Participants will wear sensors and try each device while walking on level ground, stairs, and slopes. The goal is to understand how different prosthetic designs change gait and user satisfaction, which could inform future prosthetic development.

What this could mean

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

Active substance
Various prosthetic foot-ankle mechanisms, including electronically-controlled variable stiffness, manually-controlled variable equilibrium angle, fixed-stiffness passive, and a commercially-available passive prosthesis.
What this could lead to
If successful, this could help identify which prosthetic designs offer the best comfort and function for people with below-knee amputations, potentially guiding future prosthetic development.
What could go wrong
This is a small, early-stage study with only 10 participants, so results may not apply to everyone. Individual preferences and gait patterns vary widely, and the findings may not lead to a clear 'best' device.

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

10 people

The number who actually took part.

Started

Jul 2023

Finished

Apr 2026

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: * Person with unilateral transtibial amputation * K3 or K4 Medicare mobility rating * Ages 18-65 Exclusion Criteria: * Below K3 Medicare mobility rating * Outside of age range (liability and safety reasons)

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As listed by the trial registrant

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

Transtibial amputation - unilateral

Contacts and locations

Locations

  • A Step Ahead Prosthetics

    Burlington, Massachusetts, 01803, United States

  • MIT Media Laboratory

    Cambridge, Massachusetts, 02139, United States

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