Painkiller study pulled before it even started
NCT ID NCT04771689
First seen Jan 21, 2026 · Last updated Jun 18, 2026 · Updated 23 times
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 However, the study was withdrawn before any participants were enrolled, so no results are available.
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the original study
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Locations
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Karina de Sousa
Boston, Massachusetts, 02114, United States
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.