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Sleep ApneaNCT05687097

Untreated Sleep Apnea as an Aggravating Factor for Other Secondary Medical Conditions After Spinal Cord Injury

An observational study of Sleep Apnea and Spinal Cord Injuries, run by University Health Network, Toronto at 1 site in Canada.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This cross-sectional prospective study will assess the potential association of more severe sleep apnea after spinal cord injury with more intense neuropathic pain, more severe spasticity, and more significant cardiovascular abnormalities including cardiac arrhythmias and blood pressure fluctuations. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Home-based sleep screening test or hospital-unattended sleep screening test, Cardiovascular beat-to-beat monitoring and ECG monitoring
Type of treatment
Medical device
How many people
60 participants
Where
1 siteCanada
Study dates
1 Sep 2020to 31 Mar 2024
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Study participants will be adults with subacute/chronic, cervical/thoracic, complete/incomplete SCI who were were not previously diagnosed with sleep apnea and under continuous positive airway pressure (CPAP) therapy at the time of the study enrollment and interventions.

Who may be able to join

  • Individuals with subacute/chronic (> 1 month after injury) spinal cord injury.
  • Individuals with a mid-cervical/mid-thoracic (levels C5 to T6) spinal cord injury.
  • Individuals with a complete or incomplete (ASIA Impairment Scale A, B, C, or D) spinal cord injury.

Who cannot join

  • individuals with other disorders of the central nervous system (e.g., sequelae of traumatic brain injury, stroke);
  • Individuals with psychiatric disorders that can interfere with adherence to study;
  • Individuals with neuromuscular diseases;
  • Individuals with history of substance abuse;
  • Individuals with prior history of hypersomnias or sleep apnea under treatment;
  • Individuals with prior history of chronic pain (e.g. fibromyalgia).

Trial locations and contacts

1 site in 1 country.

Canada1 site
  • Lyndhurst Centre, TRI and KITE Research Institute, UHN

    Toronto, Ontario, M4G 3V9

Other trials in Canada

About this study

Official title: Untreated Sleep-related Breathing Disorders as an Aggravating Factor for Neuropathic Pain, Spasticity and Cardiovascular Dysfunction After Spinal Cord Injury: A Cross-sectional Prospective Study

This cross-sectional prospective study will assess the potential association of more severe sleep apnea after spinal cord injury with more intense neuropathic pain, more severe spasticity, and more significant cardiovascular abnormalities including cardiac arrhythmias and blood pressure fluctuations. In addition, the participants' experience when undergoing home-based sleep screening test or hospital-unattended sleep screening test will be assessed in a semi-structured interview.

Read the detailed description

This cross-sectional prospective study will assess the potential association of more severe sleep apnea after spinal cord injury with more intense neuropathic pain, more severe spasticity, and more significant cardiovascular abnormalities including cardiac arrhythmias and blood pressure fluctuations. In addition, the participants' experience when undergoing home-based sleep screening test or hospital-unattended sleep screening test will be assessed in a semi-structured interview (qualitative analysis).

Being tested
Home-based sleep screening test or hospital-unattended sleep screening test, Cardiovascular beat-to-beat monitoring, ECG monitoring
Medical subject headings
Sleep Apnea Syndromes, Spinal Cord Injuries, Muscle Spasticity, Neuralgia

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Home-based sleep screening test or hospital-unattended sleep screening testDevice

    Also called ApneaLink

    ApneaLink device will be used to assess the number of apnea and hypopnea events per hour of sleep.

  • Cardiovascular beat-to-beat monitoringDevice

    Also called CareTaker

    CareTaker device will be used to continuously record the participant's arterial blood pressure and heart rate during sleep.

  • ECG monitoringDevice

    Also called Faros Bithium 180

    Faror Bithium 180 device will be used to continuously record the participant's ECG during sleep.

Study groups in NCT05687097
Study groupRoleWhat they receive
Individuals without sleep apnea after spinal cord injuryNo significant sleep apnea is defined as an apnea-hypopnea index (AHI) < 5 events per hour of sleep
Receives: Device: Home-based sleep screening test or hospital-unattended sleep screening test; Device: Cardiovascular beat-to-beat monitoring; Device: ECG monitoring
Individuals with mild sleep apnea after spinal cord injuryMild sleep apnea is defined as an apnea-hypopnea index (AHI) ≥ 5 events per hour of sleep, but an AHI <15 events.
Receives: Device: Home-based sleep screening test or hospital-unattended sleep screening test; Device: Cardiovascular beat-to-beat monitoring; Device: ECG monitoring
Individuals with moderate sleep apnea after spinal cord injuryMild sleep apnea is defined as an apnea-hypopnea index (AHI) ≥ 5 events per hour of sleep but an AHI <15 events.
Receives: Device: Home-based sleep screening test or hospital-unattended sleep screening test; Device: Cardiovascular beat-to-beat monitoring; Device: ECG monitoring
Individuals with severe sleep apnea after spinal cord injurySevere sleep apnea is defined as an apnea-hypopnea index (AHI) > 30 events per hour of sleep.
Receives: Device: Home-based sleep screening test or hospital-unattended sleep screening test; Device: Cardiovascular beat-to-beat monitoring; Device: ECG monitoring

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Apnea-hypopnea index (AHI)

    The number of apneas and hypopneas per hour of sleep recorded using the ApneaLink device.

    Measured: One night of sleep (up to 10 hours)

Secondary outcomes (3)
  1. Neuropathic pain

    Level of neuropathic pain prior to the interventions using Visual Analog Scale (0: no pain; 100: the worst pain ever).

    Measured: Pre-intervention assessment only.

  2. Spasticity

    Degree of spasticity prior to the interventions using the modified Ashworth Scale (0: normal tone; 16: all four extremities rigid in flexion or extension).

    Measured: Pre-intervention assessment only.

  3. Cardiovascular dysfunction

    The number of episodes of autonomic dysreflexia during sleep.

    Measured: Pre-intervention assessment only.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted17 Jan 2023
  2. Study start1 Sep 2020
  3. Primary completion31 Mar 2024
  4. Study completion31 Mar 2024

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Other
Time perspective
Cross-sectional
Enrolment
60 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05687097
Sponsor's protocol ID
19-5285
Status last verified
May 2024
First submitted
25 Dec 2022
Last updated
8 May 2024
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided: Data can be shared with another researcher when UHN REB approval is obtained.

Publications

  • Furlan JC, Loh E, Boulos MI. The potential effects of untreated sleep-related breathing disorders on neuropathic pain, spasticity, and cardiovascular dysfunction following spinal cord injury: A cross-sectional prospective study protocol. PLoS One. 2023 May 2;18(5):e0282860. doi: 10.1371/journal.pone.0282860. eCollection 2023.

    PubMed 37130111

Questions about this trial

What is this clinical trial studying?

An observational study of Sleep Apnea and Spinal Cord Injuries, run by University Health Network, Toronto at 1 site in Canada.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 8 May 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Canada. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Apnea-hypopnea index (AHI) (time frame: One night of sleep (up to 10 hours)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05687097, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 8 May 2024.

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