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Jaw surgery for sleep apnea may cause temporary speech issues, study finds

NCT ID NCT07301021

Knowledge-focused Sponsor: Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA) Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looks at how often people develop speech or swallowing problems after a jaw-advancement surgery for obstructive sleep apnea. Researchers will measure nasality, speech, and swallowing in 28 adults before and after surgery at five different times. The goal is to better understand these side effects, not to test a new treatment.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

About 28 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

May 2026

An estimate. Start dates often move.

Expected to finish

Dec 2027

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

OSA patients who undergo a maxillomandibular advancement

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Age \> 18 years * Mild to severe OSA * Indication for MMA for OSA treatment Exclusion Criteria: * patients who underwent other adjunctive procedures at the time of MMA (e.g., multipiece le Fort osteotomy, TMJ reconstruction * Previous history of orthognathic surgery * Previous history of orthognathic surgery * Previous history of oropharyngeal surgery (UPPP or multi-level surgery) * Cleft palate and syndromic patients * Neuromusculair diseases which causes VPI, dysphagia or dysarthria * Incapacity

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Conditions

The condition(s) this trial relates to.

communication disorder congenital velopharyngeal incompetence obstructive sleep apnea syndrome Speech speech disorder

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Nasality SPEECH Swallowing Velopharyngeal insufficiency

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Amsterdam UMC

    Amsterdam, North Holland, Netherlands

More trials for these conditions

Other studies related to the condition(s) this trial covers.