Neural-controlled powered knee and ankle for people with above-knee amputation.
Official title: Evaluation of a Neural-Controlled Powered Prosthesis Across Diverse Real-World Tasks
Run by Massachusetts Institute of Technology · NCT07204912 · Data updated 2026-11-12
We will test whether a neural-controlled powered knee or ankle prosthesis helps people with above-knee (transfemoral) amputation walk more naturally and stably in everyday situations.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years to 70 Years |
| Sex | All |
| Enrollment | 10 (estimated) |
| Sponsor | Massachusetts Institute of Technology Academic / other |
| Locations | 1 site (Cambridge, Massachusetts) |
| Status | Recruiting |
| Started | May 31, 2025 |
| Main results expected | May 31, 2027 |
| Study ends | May 31, 2028 |
| Registry record updated | October 2, 2025 |
| Trial ID | NCT07204912 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal participants are adults 18–70 with a unilateral transfemoral (above-knee) amputation who can walk at variable cadences (K3 or higher) and have an adequate socket to support the device.
✕Probably not a fit
People with bilateral amputations, low functional mobility (below K3), severe comorbidities, atypical skeletal anatomy, BMI over 40, or who are pregnant are unlikely to benefit or be eligible.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This single-site interventional project will fit participants who have unilateral transfemoral amputation with an MIT Powered Leg that uses neural control and will have them perform a range of real-world mobility tasks. Investigators will compare walking symmetry, stability, and the user's sense of embodiment when using the powered prosthesis versus their prescribed prosthesis, collecting biomechanical and user-reported measures. Participants will be adults aged 18–70 with functional mobility at K3 level or above and an adequate socket to support the device. Results will inform future bionic prosthesis design and integration into daily life.
Why it matters
Potential benefit: If successful, the device could improve walking symmetry, stability, and the user's sense of limb embodiment, making daily mobility easier and safer.
How similar studies have gone: Previous small-scale and lab-based studies of powered or neurally controlled lower-limb prostheses have shown promising gains in gait and user experience, but real-world data across diverse tasks remain limited.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Male or Female age 18-70. * 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.).
Where it's running
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MIT Media Lab
Cambridge, Massachusetts, United States Recruiting
Study contacts
- Principal investigator: Hugh Herr — MIT Media Lab
- Study coordinator: John A McCullough, B.S. Mechanical Engineering
- Email: johnmccu@mit.edu
- Phone: 424-603-1074
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Personalizing powered knee prostheses using reinforcement learning
This trial will test whether a computer system called RISE can help clinicians tune powered knee prostheses faster and make them work better for people with above-knee (transfemoral) amputations.
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How residual limb length relates to strength, balance, and function after transfemoral amputation
This study tests how the length of the missing lower leg segment affects strength, balance, and daily function in adults with a transfemoral amputation.
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Evaluating the Ossur Power Knee for people with above-knee amputations
This study is testing whether the Ossur Power Knee, a high-tech prosthetic knee that helps with movement, works better than a regular prosthetic knee for people with above-knee amputations.
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Improving prosthetic socket fit for veterans with lower limb amputations
This study is testing whether an adjustable prosthetic socket can help veterans with lower limb amputations walk better and feel more comfortable compared to a regular socket.
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Comparing walking with powered and passive prosthetic knees for amputees
This study tests whether walking with a powered prosthetic knee is easier and more efficient for people with leg amputations compared to using a standard knee.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.