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Ear nerve zaps could limit stroke damage, early study hopes

NCT ID NCT07404852

Knowledge-focused Sponsor: Washington University School of Medicine 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study is testing whether a gentle electrical stimulation of a nerve in the ear (the vagus nerve) can reduce brain injury and inflammation after a severe stroke. Researchers will measure brain damage markers in the blood of 65 participants over a week. The goal is to see if this safe, non-invasive technique might help the brain heal better when added to standard stroke care.

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 vagal nerve stimulation (a device that stimulates a nerve in the ear)
What this could lead to
If it works, this could point toward a way to reduce brain damage and inflammation after a stroke, potentially improving recovery.
What could go wrong
This is a very early pilot study with only 65 people. It is designed to test safety and measure biological markers, not to prove it improves patient outcomes. The treatment may not show any benefit.

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 65 people

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

Started

Feb 2026

Expected to finish

Feb 2028

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 to 99 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 who present with acute ischemic strokes due to large vessel occlusions Exclusion Criteria: * \<18 years old * patients with presumed chronic large vessel occlusions * NIHSS\<6 * pre-morbid modified Rankin score (mRS) \>2 * unable to initiate treatment under 24 hours from symptom discovery * Chronic or acute infection, Recent surgery, active immune disease * life expectancy \<3 months * patients' undergoing active cancer or immunosuppressive/modulating therapy * patients with sustained bradycardia on arrival with a heart rate \<50 beats per minute.

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Conditions

The condition(s) this trial relates to.

cerebral artery occlusion ischemic stroke large artery stroke

As listed by the trial registrant

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

Acute ischemic stroke Large vessel occlusion

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

  • Barnes-Jewish Hospital

    RECRUITING

    St Louis, Missouri, 63110, United States

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