A Clinical Trial to Evaluate the Efficacy and Safety of HRS-9821 Inhalation Suspension in Patients With Moderate to Severe Chronic Obstructive Pulmonary Disease
Conditions
Interventions
- DRUG: HRS-9821 Inhalation Suspension
- DRUG: HRS-9821 Placebo Inhalation Suspension
Sponsor
Guangdong Hengrui Pharmaceutical Co., Ltd