New painkiller injection enters first human tests
NCT ID NCT06681493
First seen Jun 30, 2026 · Last updated Jul 01, 2026 · Updated 1 time
Summary
This early-stage study tests a new drug called YZJ-4729 tartrate, given as an injection, to see if it is safe and how the body handles it. The trial involves healthy adults aged 18 to 45. Researchers will measure side effects, drug levels in the blood, and how the drug is processed, with the goal of eventually using it to relieve pain after surgery.
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 tartrate injection
- What this could lead to
- If safe and effective, this could lead to a new option for managing pain after surgery.
- What could go wrong
- This is a very early Phase 1 study in healthy volunteers, not patients. It primarily checks safety and dosing; pain relief is not yet measured. Many early-stage drugs do not advance.
This is an AI summary of the original study and may miss details. Read our disclaimer.
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
-
Xiangya Third Hospital, Central South University
Changsha, China
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