A Multicenter, Randomized, Double-blind, Placebo-controlled, Parallel-group Phase III Study of HSK39004 Inhalation Powder for the Treatment of COPD
Conditions
- COPD (Chronic Obstructive Pulmonary Disease)
Interventions
- DRUG: HSK39004 Dry Powder Inhaler Simulant
- DRUG: HSK39004 Dry Powder Inhaler-0.75mg
Sponsor
Haisco Pharmaceutical Group Co., Ltd.