A Study to Evaluate the Safety and Efficacy of HL231 Solution for Inhalation in Patients With COPD
Conditions
- Chronic Obstructive Pulmonary Disease (COPD)
Interventions
- DRUG: HL231 Solution for Inhalation
- DRUG: Ultibro 110μg/50 μg
Sponsor
Haisco Pharmaceutical Group Co., Ltd.
Collaborators