Chronic Obstructive Pulmonary Disease
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Meet the GOLD2017 COPD diagnostic criteria (FEV1/FVC 40 years; 3. BMI index is 18kg/m2-36 kg/m^2; 4. The clinical symptoms are stable, and the medication has not changed within 1 month.
Exclusion criteria
Exclusion criteria: Patients with other respiratory diseases (asthma, bronchiectasis, pulmonary fibrosis, etc.), malignant tumors, immune system-related diseases or a history of oral/intravenous hormone therapy within 1 month before enrollment.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| forced expiratory volume in one second ;The ratio of forced expiratory volume in 1 second to forced vital capacity;Forced expiratory volume in 1 second as a percentage of predicted;gut microbiota;airway microbiota;SIgA; | — |
Countries
China
Contacts
Qingdao Municipal Hospital