Ear zaps could tame tummy troubles: scientists test Nerve-Stimulating device

NCT ID NCT04206540

Ongoing Knowledge-focused Sponsor: Indiana University Source: ClinicalTrials.gov ↗

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests whether a mild electrical current applied to the ear can activate the vagus nerve, which controls stomach function. Thirty healthy volunteers will receive ear stimulation and perform simple maneuvers like coughing. Researchers will measure nerve activity and stomach signals to see if this non-invasive approach could one day treat nausea and digestive disorders.

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 successful, this could help develop a non-invasive way to treat nausea, vomiting, and stomach disorders by stimulating the vagus nerve through the ear.
What could go wrong: This is a very early, small study in healthy people, not patients. It only measures nerve activity, not treatment effects, so it may not lead to any therapy.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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As listed by the trial registrant

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

HEALTHY SUBJECTS

Contacts and locations

Locations

Indiana University Hosptial

Indianapolis, Indiana, 46202, United States

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