Using a mandibular advancement device to help with sleep apnea when stopping CPAP
Official title: Impact of the Mandibular Advancement Device on Sleep Apnea Syndrome During Discontinuation of Treatment With Continuous Positive Airway Pressure: Randomized Controlled Trial
Run by University Hospital, Angers · NCT05939934 · Data updated 2026-11-12
This study is testing if a mouthpiece can help people with sleep apnea manage their symptoms and heart health when they stop using their CPAP machine for a short time.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years to 75 Years |
| Sex | All |
| Enrollment | 40 (estimated) |
| Sponsor | University Hospital, Angers Government |
| Locations | 1 site (Angers) |
| Status | Recruiting |
| Started | March 5, 2024 |
| Main results expected | November 2026 |
| Study ends | November 2026 |
| Registry record updated | April 6, 2026 |
| Trial ID | NCT05939934 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are patients with severe obstructive sleep apnea who have been treated with CPAP for more than 12 months and have excessive daytime sleepiness.
✕Probably not a fit
Patients with severe daytime sleepiness, central apneas, or significant comorbidities 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 clinical trial investigates the effectiveness of a mandibular advancement device (MAD) as a complementary treatment for patients with obstructive sleep apnea who are temporarily discontinuing continuous positive airway pressure (CPAP) therapy. Patients with severe obstructive sleep apnea, who have been compliant with CPAP for over a year, will be randomized into two groups: one receiving the MAD and the other receiving no specific treatment. Assessments of endothelial function, blood pressure, and sleep quality will be conducted before and after a two-week period without CPAP. The goal is to determine if the MAD can help maintain symptom control and cardiovascular health during CPAP withdrawal.
Why it matters
Potential benefit: If successful, this approach could provide an alternative treatment option for patients struggling with CPAP compliance, potentially improving their quality of life and cardiovascular health.
How similar studies have gone: Previous studies have shown that mandibular advancement devices can be effective in managing obstructive sleep apnea, suggesting potential success for this approach.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Patient accepting MAD treatment * Patient with an apnea-hypopnea index (AHI) greater than 15 events per hour on the initial recording * Patient with excessive daytime sleepiness during initial treatment (ESE\>10) * Patient treated for more than 12 months by CPAP with average compliance greater than 5 hours per night Exclusion Criteria: * Initial severe daytime sleepiness characterized * OSAS with ≥ 5 central apneas per hour of sleep at baseline recording * Previously diagnosed severe cardiac and/or respiratory pathology: * Body mass index ≥ 35 kg/m2 * Known contraindication to OAM treatment
Where it's running
-
Angers University Hospital
Angers, France Recruiting
Study contacts
- Principal investigator: wojciech Trzepizur, MD PHD — University Hospital, Angers
- Study coordinator: wojciech trzepizur, MD PHD
- Email: wotrezpizur@chu-angers.fr
- Phone: +3380575272
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.