An interventional study of Early Management in Obstructive Sleep Apnea, sponsored by University of Calgary. Completed at 1 site in Canada. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-05-04.
Sponsored by University of Calgary · Not applicable, Interventional, and Health services research
The primary objective of this study is to evaluate the effect of more timely care for obstructive sleep apnea (OSA) on adherence to positive airway pressure (PAP) therapy at three months after treatment initiation. The secondary objectives are to determine if earlier care improves the treatment effect of PAP on patient reported sleepiness, quality of life and patient satisfaction. We will also evaluate the impact of shorter wait times on patient engagement in therapy by assessing initial acceptance of PAP therapy, patient activation and self-efficacy with respect to OSA treatment.
The study hypothesis is that the early management strategy will be superior to usual care with respect to the primary outcome of PAP adherence at three months.
2,198 studies on the registry are indexed under Sleep Apnea, Obstructive; 468 are open to participants now.
This study's enrollment of 103 is above the median of 53 across 1,448 interventional studies indexed under Sleep Apnea, Obstructive.
Browse Sleep Apnea, Obstructive studies →University of Calgary is the lead sponsor of 686 studies on the registry; 189 are open to participants now.
Of its 10 completed or terminated interventional studies of FDA-regulated products, 2 (20%) have results posted.
Counted across the registry records on this site, refreshed daily.
Exclusion Criteria:
Scheduled for sleep physician appointment within 1 month of home sleep apnea test/triage
Other: Early Management
Scheduled for sleep physician appointment approximately 6 months after home sleep apnea test/triage
Scheduled for sleep physician appointment within 1 month of home sleep apnea test/triage
Positive airway pressure adherence
Mean number of hours of positive airway pressure use per night in the four weeks prior to three month follow-up
Time frame: 3 months after treatment initiation
Positive airway pressure therapy initiation
Proportion of patients who initiate positive airway pressure therapy
Time frame: 1 week after sleep physician visit
Adherent to positive airway pressure
Proportion of patients using positive airway pressure therapy for at least four hours per night on at least 70% of nights during the four weeks prior to the three-month follow-up
Time frame: 3 months after treatment initiation
Sleepiness
Change in Epworth Sleepiness Scale score from baseline to three months. Scale is from 0-24 with higher scores indicating greater sleepiness
Time frame: 3 months after treatment initiation
General health-related quality of life: Change in EuroQoL-5D-3L
Change in EuroQoL-5D-3L index score (0-1, higher scores indicating greater quality of life), dimensions (problem vs no problem) and visual analogue score (0-100, higher score indicating greater quality of life) from baseline to three months
Time frame: 3 months after treatment initiation
Disease-specific health-related quality of life: Change in Sleep Apnea Quality of Life Index
Change in Sleep Apnea Quality of Life Index from baseline to three months. Scale includes four domains scored from 1-7, with higher scores indicating greater quality of life. The overall score is the average from the four domains
Time frame: 3 months after treatment initiation
Patient satisfaction: Visit-Specific Satisfaction Instrument total score
Visit-Specific Satisfaction Instrument total score compared between groups at baseline and after three months of PAP therapy. Scale includes 9 questions rated from 1-5. Total score is between 9-45 with higher scores indicating greater satisfaction
Time frame: 3 months after treatment initiation
Patient activation
Change in Patient Activation Measure score from baseline to three months. Scale is from 0-100 with higher scores indicating greater activation
Time frame: 3 months after treatment initiation
Patient activation level
Change in patient activation level (based on Patient Activation Measure) from baseline to three months. Scale is from 0-100. Participants are classified from activation level 1-4 based on overall score, with higher level indicating greater activation
Time frame: 3 months after treatment initiation
Self-efficacy: Self-Efficacy Measure for Sleep Apnea score
Self-Efficacy Measure for Sleep Apnea score compared between groups at baseline and after three months of PAP therapy. There are 3 subscales (risk perception, outcome expectancies, treatment self-efficacy), each scored from 1-4 with higher scores indicating greater self-efficacy
Time frame: 3 months after treatment initiation
Plan to share: Yes — Deidentified data may be shared upon completion of data sharing agreement
No publications or documents are linked to this record.
This study is completed, as verified in Mar 2025. You cannot join it, but the record below documents what was studied.
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University of Calgary