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Sleep apnea treatment may also help your mouth and swallowing

NCT ID NCT05977296

Symptom relief Sponsor: National Cheng-Kung University Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 tested whether using a CPAP machine (a device that helps you breathe during sleep) can also improve oral frailty (weakness in the mouth) and dysphagia (trouble swallowing) in people with obstructive sleep apnea. Researchers followed 450 adults aged 50 and older for six months, measuring things like bite strength, chewing ability, tongue movement, and swallowing safety. The goal was to see if treating sleep apnea with CPAP has added benefits for oral health.

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.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

450 people

The number who actually took part.

Started

Apr 2022

Finished

Dec 2025

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.

Ages

50 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 50 years or older. * Medically diagnosed with obstructive sleep apnea (apnea and hypopnea index, AHI, ≥ 5 events per hour). * Clear consciousness and able to communicate in Mandarin or Taiwanese. Exclusion Criteria: * Central sleep apnea patients. * Patients with neurological or muscular disorders (such as stroke or Parkinson's disease). * Patients diagnosed with oral cancer currently undergoing oral treatment.

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Conditions

The condition(s) this trial relates to.

Deglutition Disorders obstructive sleep apnea syndrome

As listed by the trial registrant

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

CPAP Dysphagia OSA

Contacts and locations

Locations

  • National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University

    Tainan, Taiwan, 704, Taiwan

More trials for these conditions

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