Painkiller study pulled before it even started

NCT ID NCT04771689

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

Summary

This study aimed to see if a tiny dose of buprenorphine/naloxone (a medicine used for opioid addiction) could help control pain after surgery in people who already take strong painkillers. It was designed for adults having orthopedic or general surgery. However, the study was withdrawn before any participants were enrolled, so no results are available.

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Conditions

The condition(s) this trial relates to.

agnosia Pain Pain, Postoperative

As listed by the trial registrant

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

Contacts and locations

Locations

  • Karina de Sousa

    Boston, Massachusetts, 02114, United States

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