NCT06915077

Brief Summary

Obstructive sleep apnea (OSA) is a sleep disorder characterized by repetitive episodes of partial or complete obstruction of the upper airway during sleep. Continuous positive airway pressure (CPAP) is a method used as a first-line treatment for obstructive sleep apnea (OSA). However, intolerance and resistance to CPAP can limit its long-term effectiveness. Alternative treatments are available, such as Mandibular Advancement Devices (MADs), positional therapy, upper airway surgery, and maxillomandibular osteotomy. However, often less efficient in reducing the apnea-hypopnea index, the higher tolerance of and compliance to alternative treatment has resulted in the adequate treatment of OSA in CPAP-intolerant patients. This paper describes the protocol of a prospective single-center cohort study including adult patients with moderate to severe OSA (15 events/h ≤ apnea-hypopnea index (AHI) \< 65 events/h) that failed to comply with CPAP therapy. Selected patients will be invited to the clinic to explore alternative treatment options where DISE will be a first step in further identifying upper airway collapse during sleep. By exploring alternative treatment options in CPAP-intolerant patients and systematically documenting their treatment paths, an algorithm can be defined to better guide patients towards personalized treatment for OSA. The follow-up is aimed at 5 years with an inclusion of 170 patients per year, including a drop-out rate of 15%. By leveraging a real-world database, this study aims to bridge the gap between research and clinical practice, facilitating the development of evidence-based guidelines and personalized treatment algorithms for CPAP-intolerant patients.

Trial Health

75
On Track

Trial Health Score

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

Enrollment
850

participants targeted

Target at P75+ for all trials

Timeline
45mo left

Started Apr 2025

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
enrolling by invitation

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

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress22%
Apr 2025Jan 2030

First Submitted

Initial submission to the registry

February 11, 2025

Completed
2 months until next milestone

First Posted

Study publicly available on registry

April 8, 2025

Completed
20 days until next milestone

Study Start

First participant enrolled

April 28, 2025

Completed
1.7 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2027

Expected
3 years until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2030

Last Updated

June 26, 2025

Status Verified

January 1, 2025

Enrollment Period

1.7 years

First QC Date

February 11, 2025

Last Update Submit

June 25, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Apnea-hypopnea index (AHI) as measured by a poly(somno)graphy

    The AHI is an index of sleep apnea severity that encompasses the frequency of apneas (cessations in breathing) and hypopneas (reductions in airflow) per hour of sleep.

    From baseline to 3 and 12 months

Secondary Outcomes (5)

  • Reason for CPAP intolerance

    At baseline

  • Daytime sleepiness measured by the Epworth Sleepiness Scale (ESS) questionnaire

    From baseline to 3 and 12 months

  • Disease-specific quality of life as measured by the Functional Outcomes of Sleep Questionnaire-30 (FOSQ-30) questionnaire

    From baseline to 3 and 12 months

  • Degree of snoring measured by the Visual Analogue Scale (VAS) questionnaire

    From baseline to 3 and 12 months

  • DISE-score during baseline DISE

    At baseline

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Adult patients (age starting from 18 years old) with moderate to severe OSA (AHI ≥ 15/h) who have been shown to be CPAP-intolerant or non-compliant and are willing to explore alternative treatment options.

You may qualify if:

  • adult patients (age starting from 18 years old)
  • moderate to severe OSA (AHI ≥ 15/h)
  • CPAP-intolerant or non-compliant
  • willing to explore alternative treatment options

You may not qualify if:

  • patients who are still on CPAP therapy
  • pediatric patients
  • newly diagnosed patients who have not had CPAP before
  • patients with AHI ≥ 65 events/h.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Universiteit Antwerpen

Wilrijk, Antwerpen, 2610, Belgium

Location

Related Publications (1)

  • Van Daele M, Smolders Y, Van Loo D, Bultynck C, Verbraecken J, Vroegop A, Lapperre T, Op de Beeck S, Dieltjens M, Vanderveken OM. Personalized Treatment for Obstructive Sleep Apnea: Beyond CPAP. Life (Basel). 2024 Aug 13;14(8):1007. doi: 10.3390/life14081007.

    PMID: 39202749BACKGROUND

MeSH Terms

Conditions

Sleep Apnea SyndromesSleep Apnea, Obstructive

Condition Hierarchy (Ancestors)

ApneaRespiration DisordersRespiratory Tract DiseasesSleep Disorders, IntrinsicDyssomniasSleep Wake DisordersNervous System Diseases

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Target Duration
5 Years
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 11, 2025

First Posted

April 8, 2025

Study Start

April 28, 2025

Primary Completion (Estimated)

January 1, 2027

Study Completion (Estimated)

January 1, 2030

Last Updated

June 26, 2025

Record last verified: 2025-01

Data Sharing

IPD Sharing
Will not share

Locations