Inhaled Corticosteroid Withdrawal in Chronic Obstructive Pulmonary Disease (COPD)

Inclusion Criteria

• •Confirmed patients with COPD (at least one lung function test post bronchodilator FEV1/FVC \<70% before the start of the study)
• •Age ≥ 40 years old
• •No acute attack record within half a year
• •Triple therapy (dual long-acting inhaled bronchodilator and inhaled steroid) is stable for more than six months.
• •Eosinophil count in blood \<300 cells/ul
• •Clinical symptom assessment CAT score \<20