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Ear zaps might boost brain power in heart patients

NCT ID NCT07063381

Symptom relief Sponsor: Bakulev Scientific Center of Cardiovascular Surgery 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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 tests a simple, non-invasive device that gently stimulates a nerve in the ear (tVNS) to see if it can improve cognitive function in people over 60 with atrial fibrillation. For 6 months, 60 participants will use the device daily after exercise. Researchers will measure brain activity and reaction times to see if the stimulation helps.

What this could mean

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

Active substance
transcutaneous Vagus Nerve Stimulation (tVNS) device
What this could lead to
If it works, this could offer a safe, non-drug way to help maintain or improve cognitive function in people with atrial fibrillation.
What could go wrong
This is a small, early-stage study with only 60 participants. It focuses on brain activity and reaction time, not yet on real-world thinking improvements. The effect may be small or not last.

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 60 people

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

Started

Sep 2025

Expected to finish

Dec 2027

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

60 to 90 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: * Age over 60 years, * Permanent form of AF, * Severe and mild cognitive impairment (\<26 points on the MoCA-8 test), * The possibility of regular repeat visits for 6 months. Exclusion Criteria: * Atrioventricular blockade of 2-3 degree, * Expressed sinus bradycardia with resting heart rate \< 40 bpm * Any oncological diseases, * Severe chronic liver and kidney pathology, * Chronic viral infections.

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Conditions

The condition(s) this trial relates to.

atrial fibrillation Cognition Disorders

As listed by the trial registrant

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

Atrial fibrillation (AF) Cognitive function abnormal

How to take part

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

  1. The places running it

    2 sites. The list below names each one and where it is.

  2. The official record

    The full official record for this study. This one lists no contact details, but it is the first place any would appear.

    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

  • Bakulev National Medical Research Center for Cardiovascular Surgery

    Moscow, 121552, Russia

  • Neurodynamics and Cognitive Technologies Research Laboratory of the Neuroscience Research Institute

    Nizhny Novgorod, Russia

More trials for these conditions

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