Clinical trial Recruiting at 1 site Interventional Ages 18 to 89

Hypercapnia treatment for respiratory recovery in spinal cord injury patients

Official title: Effect of Hypercapnia Treatment on Respiratory Recovery After Spinal Cord Injury

Run by VA Office of Research and Development · NCT05536076 · Data updated 2026-11-12

This study tests if daily hypercapnia treatments can help veterans with spinal cord injuries breathe better and reduce sleep apnea symptoms.

More Sleep Apnea trials

Quick facts

Study typeInterventional
Ages18 Years to 89 Years
SexAll
Enrollment30 (estimated)
SponsorVA Office of Research and Development
Federal
Locations1 site (Detroit, Michigan)
StatusRecruiting
StartedMarch 1, 2023
Main results expectedFebruary 28, 2027
Study endsFebruary 28, 2027
Registry record updatedApril 2, 2026
Trial IDNCT05536076 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include adults with chronic spinal cord injury who exhibit signs of sleep-disordered breathing.

Probably not a fit

Patients who are on continuous mechanical ventilation or have severe heart failure may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study investigates the effects of daily hypercapnia treatments on respiratory recovery in veterans with chronic spinal cord injuries. The researchers hypothesize that these treatments will improve respiratory symptoms and alleviate sleep apnea, which are common complications following spinal cord injuries. The pilot study will involve administering hypercapnia treatments over two weeks to assess their impact on respiratory function. The approach is based on previous findings that suggest respiratory muscle training can enhance recovery in patients with spinal cord injuries.

Why it matters

Potential benefit: If successful, this treatment could significantly improve respiratory function and quality of life for patients with spinal cord injuries.

How similar studies have gone: While the approach of using hypercapnia for respiratory recovery is novel, previous studies have shown promise in related areas of respiratory muscle training.

Who can join: the full rules

Show full inclusion / exclusion criteria
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

Where it's running

  • John D. Dingell VA Medical Center, Detroit, MI
    Detroit, Michigan, United States
    Recruiting

Study contacts

  • Principal investigator: Abdulghani Sankari, MD PhD — John D. Dingell VA Medical Center, Detroit, MI
  • Study coordinator: Abdulghani Sankari, MD PhD
  • Email: Abdulghani.Sankari@va.gov
  • Phone: (313) 576-1000

Similar studies

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.