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Could low oxygen boost walking recovery in spinal cord injury?

NCT ID NCT06521723

Symptom relief Sponsor: Spaulding Rehabilitation Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

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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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 for adults aged 18–80 with chronic spinal cord injury who can already walk a little. It combines short periods of breathing low oxygen, spinal cord stimulation, and walking practice to see if it helps them walk better. The goal is to improve walking speed and endurance over several treatment sessions.

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 60 people

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

Started

Jun 2025

Expected to finish

Sep 2028

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: * 18 to 80 years of age * medically stable with medical clearance from study physician to participate * SCI at or below C1 and at or above L2 with at least some sensory or motor function preserved below the neurologic level * non-progressive etiology of spinal injury * American Spinal Injury Association (ASIA) scores of C-D at initial screen * ambulatory (able to complete the 10-meter walk test without support from another person) * chronic injury (define as \> 12 months post-injury) to avoid potential for spontaneous neurological plasticity and recovery Exclusion Criteria: * severe concurrent illness or pain, including unhealed decubiti, severe neuropathic or chronic pain syndrome, severe infection (e.g., urinary tract), hypertension, cardiovascular disease, pulmonary disease, severe osteoporosis, active heterotopic ossification in the lower extremities, severe systemic inflammation * \< 24 on Mini-Mental Exam * severe recurrent autonomic dysreflexia * history of severe cardiovascular/pulmonary complications including hypertension (systolic blood pressure \> 150 mmHg) * pregnancy because of unknown effects of AIH or tSTIM on a fetus (individuals of childbearing potential will not otherwise be excluded) * botulinum toxin injections in lower extremity muscles within the prior three months * history of tendon or nerve transfer surgery in the lower extremity * untreated severe sleep-disordered breathing characterized by uncontrolled hypoxia and sleep fractionation that may impact the outcome of this study. * active implanted devices (e.g., intrathecal baclofen pump) * receiving concurrent electrical stimulation * motor threshold evoked by transcutaneous spinal stimulation \>200 mA

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Conditions

The condition(s) this trial relates to.

spinal cord injury

As listed by the trial registrant

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

Spinal cord injuries

How to take part

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

  1. The places running it

    2 sites. 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

  • Brooks Rehabilitation Hospital

    RECRUITING

    Jacksonville, Florida, 32216, United States

  • Spaulding Rehabilitation Hospital

    RECRUITING

    Cambridge, Massachusetts, 02128, United States

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