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Simple mouth exercises could be a new weapon against sleep apnea

NCT ID NCT05678088

Symptom relief Sponsor: Sunnybrook Health Sciences Centre 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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Aug 18, 2026 · Updated 3 times

Summary

This study tests whether doing specific mouth and tongue exercises can help people with obstructive sleep apnea who cannot use a CPAP machine. Forty-five adults will be randomly assigned to real exercises, sham exercises, or unsupervised exercises for 10 weeks. The main goal is to see if a larger trial is possible, but researchers will also check if sleep apnea severity and daytime sleepiness improve.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
oropharyngeal exercises
What this could lead to
If this works, it could offer a simple, drug-free way to reduce sleep apnea severity and improve sleep quality for people who can't use CPAP.
What could go wrong
This is a small feasibility study, not a large effectiveness trial. The exercises may not improve sleep apnea enough to matter, and results may not apply to everyone.

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

About 45 people

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

Started

Mar 2023

Expected to finish

Mar 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.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

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: * Patients with OSA (defined as an apnea-hypopnea index ≥10/hr) in whom \>50% of the respiratory events are obstructive in nature * Patients who are unwilling to use CPAP or have been unable to tolerate CPAP after at least a 2-week trial * Patients who are also not using an equipment-based treatment modality (e.g. PAP therapy, a dental appliance, or hypoglossal nerve stimulation) or surgery to manage their OSA. Exclusion Criteria: * Planned airway surgery, use of CPAP, a dental appliance, or other equipment-based treatment modality to manage OSA during the course of the study * Central respiratory events account for ≥50% of the overall apnea-hypopnea index * Reduced cognition (MoCA\<18) * Any significant neurological condition that could impact oropharyngeal activity * Use of medications that may impact tone of the upper airway (e.g. hypnotics, opiates) ≥3 nights per week during the 4 weeks prior to randomization * Use of a medical device that would interfere with the use of the home sleep apnea test * Plans to move to another city during the study that would impact compliance.

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Conditions

The condition(s) this trial relates to.

obstructive sleep apnea syndrome

As listed by the trial registrant

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

Obstructive sleep apnea

Contacts and locations

Locations

  • Sunnybrook Health Sciences Centre

    Toronto, Ontario, M4N3M5, Canada

More trials for these conditions

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