NCT07596719

Brief Summary

The goal of this observational prospective cohort study is to learn about the natural course of central and mixed sleep apneas that develop after maxillomandibular advancement (MMA) surgery for obstructive sleep apnea (OSA) in adult patients. The main question it aims to answer is: Do central and mixed apneas resolve, partially resolve, or persist in the long term after MMA? Participants will: Undergo a first postoperative polysomnography (PSG) at 3-6 months after MMA (part of standard care). Be invited into the study if central/mixed apneas are detected (CMAI% \>25%). Undergo a second PSG at least 12 months after MMA (extra study procedure)

Trial Health

63
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Trial Health Score

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

Enrollment
60

participants targeted

Target at P25-P50 for all trials

Timeline
13mo left

Started Dec 2026

Geographic Reach
1 country

1 active site

Status
not yet 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

May 13, 2026

Completed
6 days until next milestone

First Posted

Study publicly available on registry

May 19, 2026

Completed
7 months until next milestone

Study Start

First participant enrolled

December 1, 2026

Expected
1.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2027

Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2027

Last Updated

May 19, 2026

Status Verified

May 1, 2026

Enrollment Period

1.1 years

First QC Date

May 13, 2026

Last Update Submit

May 13, 2026

Conditions

Keywords

OSAMMACentral Sleep Apnea

Outcome Measures

Primary Outcomes (4)

  • Apnea-hypopnea index (AHI)

    12 months after MMA surgery

  • Central apnea index (CAI)

    12 months after MMA surgery

  • Mixed apnea index (MAI)

    12 months after MMA surgery

  • The percentage of central and mixed apneas of AHI (CMAI%)

    12 months after MMA

Secondary Outcomes (2)

  • Lowest oxyhemoglobin saturation (LSAT)

    12 months after MMA surgery

  • Oxygen desaturation index (ODI)

    12 months after MMA surgery

Study Arms (1)

Adults with OSA who developed central and/or mixed sleep apneas after MMA

Eligibility Criteria

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

Obstructive sleep apnea (OSA) patients who are present with maxillomandibular advancement (MMA) treatment-related central and mixed apneas.

You may qualify if:

  • Adults aged 18 years or older;
  • Mild to severe OSA as determined by a polysomnography (PSG) preoperatively;
  • Completion of MMA for OSA treatment;
  • Subjects with preoperative and postoperative PSG;
  • Patients who are present with MMA treatment-related central apneas postoperatively

You may not qualify if:

  • Patients who underwent other adjunctive procedures at the time of MMA (e.g., multi-piece Le Fort osteotomy, TMJ reconstruction);
  • Previous history of orthognathic surgery;
  • Cleft palate and syndromic patients.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Department of Oral and Maxillofacial Surgery

Amsterdam, North Holland, 1105 AZ, Netherlands

Location

MeSH Terms

Conditions

Sleep Apnea SyndromesSleep Apnea, ObstructiveSleep Apnea, Central

Condition Hierarchy (Ancestors)

ApneaRespiration DisordersRespiratory Tract DiseasesSleep Disorders, IntrinsicDyssomniasSleep Wake DisordersNervous System Diseases

Central Study Contacts

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Prof. dr.

Study Record Dates

First Submitted

May 13, 2026

First Posted

May 19, 2026

Study Start (Estimated)

December 1, 2026

Primary Completion (Estimated)

December 31, 2027

Study Completion (Estimated)

December 31, 2027

Last Updated

May 19, 2026

Record last verified: 2026-05

Data Sharing

IPD Sharing
Will not share

Locations