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Stroke recovery breakthrough? scientists hunt for biomarkers to predict HIIT success

NCT ID NCT06059872

Knowledge-focused 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 study
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 Results may not be published yet.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
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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study is looking for biological clues to explain why some stroke survivors improve their walking with high-intensity interval training (HIIT) while others do not. Researchers will measure blood lactate, brain chemicals, and blood flow in 55 veterans with chronic stroke. The goal is to build a model that predicts who will respond to HIIT, making rehab more personalized.

What this could mean

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

Active substance
High-Intensity Interval Training (HIIT) cycling sessions
What this could lead to
If successful, this could help doctors predict who will benefit from HIIT after a stroke, personalizing rehabilitation.
What could go wrong
This is a small, early-stage observational study (55 participants) focused on finding predictors, not testing a treatment. The results may not apply to all stroke survivors.

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

About 55 people

The number the study aims to enrol. It can still change while the study runs.

Started

Jan 2024

Expected to finish

Dec 2027

An estimate. End dates often move.

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 to 89 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: * chronic left or right subcortical stroke as defined by 6 months or more after a cardiovascular accident * lower extremity motor impairment due to stroke that causes a walking speed of less than 0.6 m/s during a 10m walk * Veteran status Exclusion Criteria: * MRI contraindications, including implanted cardiac pacemakers and severe claustrophobia * any neurodegenerative condition other than stroke that may lead to lower extremity impairment * a visual or auditory impairment that may hinder study procedures * any medical condition that would preclude participation in a physical exercise intervention program

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Conditions

The condition(s) this trial relates to.

Mobility Limitation Paraparesis, Spastic stroke disorder

As listed by the trial registrant

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

Lower extremity weakness, spastic Stroke Stroke rehabilitation Walking, difficulty

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Atlanta VA Medical and Rehab Center, Decatur, GA

    RECRUITING

    Decatur, Georgia, 30033-4004, United States

More trials for these conditions

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