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Ear-Zapping device could tame brain swelling after stroke

NCT ID NCT06918964

Disease control Sponsor: Beijing Tiantan 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tests whether a device that gently stimulates a nerve in the ear can help people recovering from a brain bleed. The device is placed on the left ear and delivers mild electrical pulses for 30 minutes, twice a day, for 10 days. Researchers will measure brain swelling and check for side effects in 186 participants.

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 device
What this could lead to
If it works, this could provide a non-invasive way to reduce brain swelling after a hemorrhagic stroke, potentially improving recovery.
What could go wrong
This is an early-stage trial with a moderate number of participants. The effect on long-term outcomes is unknown, and the device may not reduce swelling as hoped.

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 186 people

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

Started

Sep 2025

Expected to finish

Dec 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 80 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: 1. Patients with spontaneous supratentorial intracerebral hemorrhage. 2. Age between 18 and 80 years. 3. Onset within 72 hours. 4. Hematoma volume between 5 and 40 mL. 5. Glasgow Coma Scale (GCS) score greater than 8. 6. Written informed consent obtained from the patient or their legal representative. Exclusion Criteria: 1. Secondary intracerebral hemorrhage (e.g., traumatic, tumor-related, vascular malformation, aneurysm, or coagulopathy-related). 2. Primary intraventricular hemorrhage. 3. Parenchymal hemorrhage that ruptures into the ventricles, with blood completely filling one lateral ventricle, the third ventricle, the fourth ventricle or more than half of both lateral ventricles. 4. Progressive neurological or other severe diseases. 5. Planned surgical treatment within 24 hours. 6. Pre-existing disability caused by previous illnesses: Modified Rankin Scale (mRS) score ≥ 3. 7. Patients with severe cardiomyopathy, heart failure, pacemaker implantation, atrial fibrillation, frequent premature beats, second-degree or higher atrioventricular block, or other severe arrhythmias. 8. Severe pulmonary disease, liver disease, renal insufficiency (glomerular filtration rate \< 30 mL/min), active gastrointestinal bleeding, or malignant tumors with an expected survival of less than 3 months. 9. Patients with hyperthyroidism, hypothyroidism, syncope, epilepsy, multiple sclerosis, Parkinson's disease, multiple system atrophy, or other known disorders affecting autonomic nervous function. 10. Use of medications that interfere with autonomic function (e.g., beta-blockers, theophylline, tricyclic antidepressants, or steroids) within 7 days before screening. 11. Patients who cannot tolerate taVNS. 12. Congenital or acquired ear abnormalities preventing taVNS treatment. 13. Inability to comply with 10 days of treatment. 14. Pregnancy or within 30 days of delivery. 15. Participation in another interventional clinical trial. 16. Inability to obtain written informed consent from the participant or their legal representative.

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Conditions

The condition(s) this trial relates to.

intracerebral hemorrhage Neuroinflammatory Diseases

As listed by the trial registrant

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

Intracerebral hemorrhage

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

  • Beijing Tiantan Hospital, Capital Medical University

    RECRUITING

    Beijing, Beijing Municipality, 100070, China

More trials for these conditions

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