The Effect of Inhaled Corticosteroids (ICS) Adjunct Therapy on Pulmonary Vascular Endothelial Function in Chronic Obstructive Pulmonary Disease (COPD): Comparison of Two Standard Treatments (NCT05607719
The study objective is to determine whether an ICS added for 4 weeks to a baseline treatment with a Long-Acting Beta-adrenergic Agonist (LABA) and Long-Acting Muscarinic Antagonist (LAMA) combination improves pulmonary vascular endothelial function as assessed by the vasodilator response to inhaled albuterol (endothelium-dependent vasodilation) in stable COPD patients treated with a LABA/LAMA without an ICS for at least one month.
• physician diagnosis of COPD
• former smoking history of more than 10 pack-years
• baseline post-bronchodilator one-second forced expiratory volume (FEV1) 50-80% of predicted, baseline FEV1 and forced vital capacity (FVC) ratio \<0.7
• males and females, 40-80 years of age
• regular use of a LAMA/LABA drug regimen for at least a month