An Observational, Prospective, Multicenter Study to Evaluate the Biologic Use and Outcomes in Chinese Asthma Patients

Inclusion Criteria: 1. Chinese, Female or Male 2. Age: no limitation 3. Physician-confirmed asthma diagnosis with documented evidence of diagnosis or evidence of variable expiratory airflow limitation (e.g., from bronchodilator reversibility testing or other tests). 4. Participants or their legal guardians must be able to provide informed consent. 5. Prescription of asthma biologics at enrolment. Exclusion Criteria: 6. Participation in an interventional study within the last 3 months. 7. Any significant disease or disorder which, in the opinion of the investigator, may either put the patient at risk because of participation in the study with the usage of biologics, or may influence the results of the study, or the patient's ability to participate in the study