Phase II Clinical Trial to Evaluate the Efficacy and Safety of LPM3480392 Injection for Moderate to Severe Pain After Orthopedic Surgery
Conditions
Interventions
- DRUG: Placebo
- DRUG: morphine hydrochloride injection
- DRUG: LPM3480392 Injection
- DRUG: LPM3480392 Injection
- DRUG: LPM3480392 Injection
- DRUG: LPM3480392 Injection
Sponsor
Luye Pharma Group Ltd.