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.
Disclaimer
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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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Contacts and locations
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Locations
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Xiangya Third Hospital, Central South University
Changsha, China