A Trial of SHR0410 Injection in Postsurgical Pain Management

A Phase Ⅱ, Randomized, Double-blind, Placebo-controlled ， Evaluation of the Safety, Efficacy of SHR0410 Injection for Pain Management Following Orthopaedic Surgery

The study is being conducted to evaluate the efficacy, safety of SHR0410 Injection and to explore the reasonable of SHR0410 Injection for Pain Management after Orthopaedic Surgery.

Inclusion Criteria:

1. Able and willing to provide a written informed consent；
2. Subjects requiring elective general anesthesia orthopedic surgery；
3. Male or female；
4. Meet the body mass index standard；
5. Conform to the ASA Physical Status Classification；
6. Negative pregnancy test.

Exclusion Criteria:

1. Subjects with a history of myocardial infarction or unstable angina pectoris；
2. Subjects with atrioventricular block or cardiac insufficiency；
3. Subjects with a history of malignancy ；
4. Subjects with a history of stroke；
5. Subjects with a history of mental illness；
6. Subjects with a history of difficult airway；
7. Random blood glucose ≥11.1mmol/L；
8. Subjects with poor blood pressure control；
9. Abnormal values in liver or renal function；
10. Subject with a history of substance abuse and drug abuse；
11. Allergic to drugs that may be used during the study；
12. Use other drugs that affect the analgesic effect before randomization, and the time from the last use to randomization is shorter than 5 half-lives；
13. Participated in clinical trials of other drugs (received experimental drugs)；
14. Other circumstances that the investigator judged inappropriate for participation in this clinical trial.