RecruitingPhase 1Drug trialA Phase I Study to Evaluate Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of HRS-9821 Powder for Inhalation Administered as a Single Dose in Healthy Participants and Multiple Doses in Patients With COPDThe aim of this study was to evaluate the safety and tolerability of HRS-9821 Powder for Inhalation administered in a single dose in healthy individuals and multiple doses in patients with COPD。