New painkiller aims to ease suffering after abdominal surgery

NCT ID NCT06680466

First seen Jun 29, 2026 · Last updated Jun 30, 2026 · Updated 1 time

Summary

This study tests a new drug called YZJ-4729 for people experiencing moderate to severe pain after abdominal surgery. Participants are randomly assigned to receive one of several doses of YZJ-4729, a placebo, or the standard painkiller morphine. The goal is to see how well YZJ-4729 relieves pain over 24 hours and to check for any side effects.

What this could mean

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

Active substance
YZJ-4729
What this could lead to
If successful, YZJ-4729 could offer a new option for managing acute pain after surgery with potentially fewer side effects than morphine.
What could go wrong
This is an early-phase trial with a small number of participants, so results may not apply broadly. The drug may not prove more effective or safer than existing treatments.

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.

Pain

As listed by the trial registrant

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

Contacts and locations

Locations

  • The Third Xiangya Hospital of Central South University

    Changsha, Hunan, China

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