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Electric zaps to tongue could reveal best way to stop snoring

NCT ID NCT07466888

Knowledge-focused Sponsor: Seoul National University Bundang Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tests how different frequencies of electrical stimulation affect tongue muscles in 28 adults at high risk for sleep apnea. During a single visit, participants receive five different stimulation frequencies in random order. Researchers measure changes in tongue muscle thickness, length, and strength using ultrasound and a pressure device, along with discomfort levels. The goal is to find which frequency works best for future treatments.

What this could mean

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

Active substance
Functional electrical stimulation device
What this could lead to
If successful, this could help identify the most effective stimulation frequency for treating obstructive sleep apnea by strengthening tongue muscles.
What could go wrong
This is a very early, small study (28 people) looking only at immediate muscle changes, not long-term sleep improvement. The results may not lead to a practical 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.

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 28 people

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

Started

Jan 2026

Expected to finish

Apr 2026

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

19 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: * Adults aged 19 years or older * STOP questionnaire score ≥ 2 * Able to read and write in Korean * Voluntarily provides written informed consent to participate in the study Exclusion Criteria: * Refusal to undergo study procedures or failure to provide informed consent * Cognitive impairment or psychiatric disorders that interfere with the ability to follow study instructions * Pregnant or breastfeeding women * Known allergy or hypersensitivity to electrical stimulation pads or related materials (e.g., silicone, polypropylene, polyethylene) * Skin conditions preventing application of electrical stimulation (e.g., hypersensitive skin) * Medical conditions considered unsuitable for participation by the investigator (e.g., epilepsy, malignant tumor, high fever, diabetes mellitus, use of anticoagulants, phlebitis, thrombophlebitis, hemophilia) * Infectious disease or local conditions at the stimulation site (e.g., inflammation, wounds, abscess, edema) * Known cardiac disease or presence of a cardiac pacemaker or implanted electrical stimulation device * History of surgery involving the submental area or upper airway region

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Conditions

The condition(s) this trial relates to.

obstructive sleep apnea syndrome Snoring

As listed by the trial registrant

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

Obstructive sleep apnea (OSA) Snoring

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

  • Seoul National University Bundang Hospital

    RECRUITING

    Gyeonggi-do, Seongnam-si, 463-707, South Korea

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