Ear zap device cuts opioid need after major surgery

NCT ID NCT05506878

Completed Symptom relief Sponsor: Jacques E. Chelly Source: ClinicalTrials.gov ↗

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

Summary

This study tested a small, disposable device that gently stimulates nerves in the ear to see if it could reduce the amount of strong painkillers (opioids) needed after open abdominal or pelvic surgery. 286 adults who had surgery for cancer or a liver transplant took part. The goal was to find a non-drug way to manage pain and lower opioid use.

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Conditions

The condition(s) this trial relates to.

Abdominal Pain agnosia Cancer Pain colorectal cancer opioid abuse

As listed by the trial registrant

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

AURICULOTHERAPY CANCER PAIN LIVER TRANSPLANT OPIOID USE PAIN, ABDOMINAL

Contacts and locations

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Locations

UPMC Montefiore Hospital

Pittsburgh, Pennsylvania, 15213, United States
University of Pittsburgh Medical Center - Magee-Womens Hospital

Pittsburgh, Pennsylvania, 15213, United States
University of Pittsburgh Medical Center - Passavant Hospital

Pittsburgh, Pennsylvania, 15237, United States
University of Pittsburgh Medical Center - Shadyside Hospital

Pittsburgh, Pennsylvania, 15232, United States