A Phase II Clinical Trial on the Efficacy and Safety of TQC3721 Inhalation Powder
ACTIVE_NOT_RECRUITING
Status
Conditions
- Pulmonary Disease, Chronic Obstructive
Interventions
- DRUG: TQC3721 inhalation powder
- DRUG: Placebo for TQC3721 inhalation powder
Sponsor
Chia Tai Tianqing Pharmaceutical Group Co., Ltd.