320
Participants
Start Date
May 11, 2022
Primary Completion Date
October 19, 2023
Study Completion Date
October 19, 2023
SHR8554 Injection
SHR8554 Injection; high dose
SHR8554 Injection
SHR8554 Injection; low dose
Saline Solution
Saline Solution
Morphine
Morphine
Shanghai Jiaotong University School of Medicine,Renji Hospital, Shanghai
Jiangsu HengRui Medicine Co., Ltd.
INDUSTRY