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Robot suit aims to help stroke survivors walk better

NCT ID NCT04818424

Symptom relief Sponsor: Lou Awad, PT, DPT, PhD 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
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 Results may not be published yet.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 This study
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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026 · Updated 1 time

Summary

This study planned to test whether a soft robotic exosuit worn on the ankle could help stroke survivors walk better. Participants would have done high-intensity gait training with or without the exosuit. The goal was to see if the suit could improve walking distance and speed. However, the study was withdrawn before any participants were enrolled.

What this could mean

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

Active substance
Soft exosuit (wearable robot) and gait training
What this could lead to
If it had worked, this could point toward a way to help stroke survivors walk better and more independently in daily life.
What could go wrong
The study was withdrawn before enrolling anyone, so no results are available. The approach is still experimental and may not provide lasting benefits.

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.

Expected to start

Feb 2021

An estimate. Start dates often move.

Expected to finish

Jul 2022

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

18 to 80 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: * Age 18 - 80 years old * Stroke event occurred at least 6 months ago * Observable gait deficits * Gait speed equal to or less than 1 m/s * Able to walk without the support of another person for at least 6 minutes (may use an assistive device as needed, but without use of an ankle foot orthosis or brace) * Passive ankle dorsiflexion range of motion to neutral with the knee extended (i.e., able to achieve an angle of 90 degrees between the shank and the foot) * Resting heart rate between 40 - 100 bpm, inclusive * Resting blood pressure between 90/60 and 170/90 mmHg, inclusive Exclusion Criteria: * Score of \>1 on question 1b and \>0 on question 1c on the NIH Stroke Scale * Inability to communicate with investigators * Neglect or hemianopia * Actively receiving physical therapy for walking * History of cerebellar strokes * Known recurring or repeating strokes * Unexplained dizziness in the last 6 months * Pressure ulcers or skin wounds located at human-device interface sites * Other medical, orthopedic, and neurological conditions that prevent full participation in the research

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Conditions

The condition(s) this trial relates to.

stroke disorder

As listed by the trial registrant

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

Stroke

Contacts and locations

Locations

  • Boston University

    Boston, Massachusetts, 02215, United States

  • Harvard University

    Boston, Massachusetts, 02134, United States

  • Spaulding Rehabilitation Hospital

    Charlestown, Massachusetts, 02129, United States

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