387
Participants
Start Date
June 8, 2022
Primary Completion Date
December 16, 2022
Study Completion Date
March 28, 2023
HSK21542 Injection
1μg/kg/dose
Tramadol hydrochloride
50mg/dose
placebo
placebo
Union Hospital, Tongji Medical College, Huazhong U, Wuhan
Haisco Pharmaceutical Group Co., Ltd.
INDUSTRY