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Could a simple gas ease breathing for spinal cord injury patients?

NCT ID NCT05536076

Symptom relief 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 tests whether daily treatments with slightly elevated carbon dioxide (hypercapnia) can improve breathing and reduce sleep apnea in Veterans with spinal cord injury. About 30 adults with chronic spinal cord injury or able-bodied people with sleep apnea will receive the treatment for two weeks. The goal is to see if this approach is practical and helps with respiratory symptoms.

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 30 people

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

Started

Mar 2023

Expected to finish

Feb 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: * Adult patients with chronic SCI/D (\>6 months post-injury) * American Spinal Injury Association (ASIA) classification A-D who have evidence of SDB (excluding those with no evidence of a neurologic deficit based on ASIA classification) * Able-bodied patients (without SCI/D0 who have OSA. Exclusion Criteria: * Receiving continuous mechanical ventilation (except PAP therapy which is considered usual treatment for SDB * Severe congestive heart failure with ejection fraction \<35% * Recent health event that may affect sleep * stroke * acute myocardial infarction * recent surgery * hospitalization * Alcohol or substance abuse (\<90 days sobriety) * Self-described as too ill to engage in study procedures * Evidence of hypercapnia on spontaneous breathing (end-tidal CO2 \>50 mmHg) * Unable to provide self-consent for participation

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Conditions

The condition(s) this trial relates to.

Hypercapnia severe combined immunodeficiency sleep apnea syndrome spinal cord injury

As listed by the trial registrant

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

Hypercapnia Sci/D Sleep apnea

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

  • John D. Dingell VA Medical Center, Detroit, MI

    RECRUITING

    Detroit, Michigan, 48201-1916, United States

More trials for these conditions

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