A Clinical Trial of TQC3927 Powder for Inhalation in Chronic Obstructive Pulmonary Disease
Conditions
- Chronic Obstructive Pulmonary Disease
Interventions
- DRUG: TQC3927 powder for inhalation
- DRUG: TQC3927 powder for inhalation placebo
Sponsor
Chia Tai Tianqing Pharmaceutical Group Co., Ltd.