Ear zap device cuts opioid need after major surgery

NCT ID NCT05506878

First seen Jun 27, 2026 · Last updated Jul 24, 2026 · Updated 1 time

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.

As listed by the trial registrant

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

Contacts and locations

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

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