Status: Recruiting
Seoul National University Airway Registry
This is a multicenter, prospective observational cohort study, in which patients with chronic airway diseases including chronic obstructive pulmonary disease(COPD), asthma, asthma-COPD overlap syndrome (ACOS) will be recruited.
Participants needed: 800
Trial details
Age: 20-90Biological sex: AllType: ObservationalSponsor: Seoul National University HospitalUpdated: Aug 19, 2015Locations: 3Duration: 10 Years
Eligibility criteria
Postbronchodilator FEV1/FVC < 0.7 AND chronic respiratory symptom
Never smoker or <5PY of smoking history AND Recurrent episodes of asthma symptom... [+1]