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Shocking weight loss? Ear-Zapping device tested for obesity

NCT ID NCT05230628

Disease control Sponsor: National Medical Research Center for Therapy and Preventive Medicine 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 26, 2026

Summary

This study tests whether a small device that sends gentle electrical pulses to a nerve in the ear (the vagus nerve) can help people with obesity lose weight. About 131 adults with mild to moderate obesity will use the device daily for 6 months. Researchers will measure changes in body fat, BMI, and waist size to see if it works.

What this could mean

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

Active substance
transcutaneous electrical nerve stimulation (TENS) device
What this could lead to
If it works, this could offer a non-invasive, drug-free option to help people with obesity lose weight and improve their quality of life.
What could go wrong
This is a small, early-stage trial with no blinding or placebo comparison, so results may not be conclusive. The device requires daily use for 6 months, and weight loss may be modest.

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

131 people

The number who actually took part.

Started

Apr 2022

Expected to finish

Dec 2026

An estimate. End dates often move.

Lead sponsor

A government agency

The lead sponsor is a government body.

Who can take part

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

Ages

18 to 75 years

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: Adult patients with grade 1-2 nutritional obesity who are willing and able to give informed written consent to participate in the study, are on sinus rhythm and are not taking any antiarrhythmic drugs, including beta-blockers. Exclusion Criteria: * Cardiac arrhythmias: bradyarrhythmias, Atrioventricular blockades of any degree; * Taking beta blockers; * The endocrine nature of obesity; * Expected technical difficulties when using the device on the part of the patient; * Pregnant or plan on becoming pregnant or breastfeeding during the study period; * Presence of an electrically, magnetically or mechanically activated implant, an intracerebral vascular clip, or any other electrically sensitive support system.

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Conditions

The condition(s) this trial relates to.

Body Weight nutritional disorder Obesity obesity disorder Obesity, Abdominal Overweight

As listed by the trial registrant

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

Obesity Vagus nerve stimulation

Contacts and locations

Locations

  • National Medical Research Center for Therapy and Preventive Medicine

    Moscow, Russia

More trials for these conditions

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