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Ear zaps tested for nervous system boost in seniors

NCT ID NCT07292623

Knowledge-focused Sponsor: Universidade da Coruña 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tested whether gentle electrical stimulation on a specific part of the ear could improve the balance between the 'fight-or-flight' and 'rest-and-digest' nervous systems in healthy older adults. Twelve non-smokers aged 65-80 received active or sham stimulation while heart rate variability was measured. The goal was to see if this simple technique could counteract age-related nervous system imbalance.

What this could mean

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

Active substance
transcutaneous auricular vagus nerve stimulation (tVNS) device
What this could lead to
If it works, this could point toward a simple, non-invasive way to help older adults maintain nervous system balance.
What could go wrong
This is a very small, early study with only 12 healthy participants. Results may not apply to people with health conditions, and the effect may be too small to matter.

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

12 people

The number who actually took part.

Started

Dec 2025

Finished

Feb 2026

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

65 to 80 years

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: * Non-smokers aged 65 to 80, with BMI from 18.5 to less than 30, who consider themselves healthy and are able to maintain their balance for at least 1 minute without assistance, living in A Coruña (Spain), with a 50% allocation to each sex Exclusion Criteria: * systolic blood pressure above 160 mm Hg and diastolic blood pressure above 100 mm Hg, * previous vagotomy, history of syncope in the last two years, or lack of reliable reading in heart rate variability * presence of chronic pain (migraine, back, neck, shoulder, etc.) or being diagnosed with or receiving treatment for malignant, cardiovascular disease (excluding hyperlipidaemia and hypercholesterolaemia), respiratory, neurological or autonomic, metabolic (e.g. diabetes), osteoarticular of autoimmune origin (e.g. arthritis), psychiatric or history of treatment with antidepressants or anxiolytics * impaired cognitive level * presence of any contraindication or difficulty in applying TENS: pacemaker, defibrillator or any implanted electronic device, apprehension of electric current, burns or irritated skin or allergic reaction or any alteration in the area that prevents the electrode from being placed on the left ear; * previous application of electrical stimulation to the ear

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Conditions

The condition(s) this trial relates to.

Tremor

As listed by the trial registrant

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

Autonomic nervous system imbalance Older adults without any specific clinical condition Transcutaneous vagus nerve stimulation

Contacts and locations

Locations

  • Faculty of Physiotherapy

    A Coruña, La Coruña, 15006, Spain

More trials for these conditions

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