NCT05939934

Brief Summary

Obstructive sleep apnea hypopnea syndrome (OSAS) is a frequent disease with neuropsychological and cardiovascular (CV) consequences. Continuous positive pressure (CPAP), the main treatment for OSAHS, is effective on the majority of symptoms but restrictive, which can promote non-compliance. Treatment interruptions are often observed in connection with intercurrent events such as nasal obstructions or even when patients are on the move. However, randomized trials have shown that stopping treatment, even for a short time, leads to a recurrence of symptoms and significant CV disturbances (increase in blood pressure, endothelial dysfunction, cardiac repolarization disorders). It seems important to consider strategies that promote therapeutic continuity. The mandibular advancement device (MAD) is an interesting tool in this regard. MAD is as effective as CPAP on symptoms and CV data. The investigators want to assess its effectiveness as a complementary treatment during treatment discontinuation on the main consequences of OSAHS.

Trial Health

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Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
40

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Mar 2024

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

June 13, 2023

Completed
28 days until next milestone

First Posted

Study publicly available on registry

July 11, 2023

Completed
8 months until next milestone

Study Start

First participant enrolled

March 5, 2024

Completed
1.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 1, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

November 1, 2025

Completed
Last Updated

February 24, 2025

Status Verified

February 1, 2025

Enrollment Period

1.7 years

First QC Date

June 13, 2023

Last Update Submit

February 21, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Change in subjective sleepiness

    Sleepiness assessed using the Epworth Sleepiness Scale

    before and two weeks after CPAP withdrawal

Secondary Outcomes (11)

  • Change in objective sleepiness

    before and two weeks after CPAP withdrawal

  • Change in subjective sleep quality

    before and two weeks after CPAP withdrawal

  • Change in executive function

    before and two weeks after CPAP withdrawal

  • Change in 24 hour blood pressure

    before and two weeks after CPAP withdrawal

  • Change in endothelial function

    before and two weeks after CPAP withdrawal

  • +6 more secondary outcomes

Study Arms (2)

control group

NO INTERVENTION

Patients will be ask not to use any OSAS treatment during the 2 weeks of the study (after the CPAP withdrawal)

mandibular advancement device

EXPERIMENTAL

Patients will be asked to use mandibular advancement device during the 2 weeks CPAP withdrawal

Device: Mandibular advancement device treatment

Interventions

a titratable thermoplastic mandibular advancement device will be proposed to patient in the experimental group during the 2 weeks of CPAP withdrawal.

mandibular advancement device

Eligibility Criteria

Age18 Years - 75 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patient accepting MAD treatment
  • Patient with an apnea-hypopnea index (AHI) greater than 30 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

You may not qualify if:

  • 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

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Angers University Hospital

Angers, 49100, France

RECRUITING

MeSH Terms

Conditions

Sleep Apnea, Obstructive

Condition Hierarchy (Ancestors)

Sleep Apnea SyndromesApneaRespiration DisordersRespiratory Tract DiseasesSleep Disorders, IntrinsicDyssomniasSleep Wake DisordersNervous System Diseases

Study Officials

  • wojciech Trzepizur, MD PHD

    Angers University Hospital

    PRINCIPAL INVESTIGATOR

Central Study Contacts

wojciech trzepizur, MD PHD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Randomized controlled trial
Sponsor Type
OTHER GOV
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 13, 2023

First Posted

July 11, 2023

Study Start

March 5, 2024

Primary Completion

November 1, 2025

Study Completion

November 1, 2025

Last Updated

February 24, 2025

Record last verified: 2025-02

Data Sharing

IPD Sharing
Will not share

Locations