Could a common antidepressant ease pain after knee replacement?

NCT ID NCT05086393

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

Summary

This study tested whether the drug duloxetine, typically used for depression, can help reduce pain and the need for opioids after knee replacement surgery. Researchers enrolled 241 adults undergoing knee replacement and gave them either duloxetine or a placebo. The goal was to see if duloxetine improves recovery and lowers opioid use in the first two weeks after surgery.

What this could mean

Our plain-language read of the trial. This is informational only โ€” not medical advice or a prediction.

Active substance
duloxetine
What this could lead to
If it works, this could point toward a better pain management plan after knee replacement, reducing opioid use and improving recovery.
What could go wrong
This is a completed Phase 4 trial with 241 participants, so results are available but may not apply to all patients. Duloxetine may cause side effects like nausea or dizziness.

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

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Conditions

The condition(s) this trial relates to.

osteoarthritis, knee Pain, Postoperative

As listed by the trial registrant

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

Contacts and locations

Locations

  • Rush University medical Center

    Chicago, Illinois, 60612, United States

More trials for these conditions

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