Effect of lung deflation with indacaterol plus glycopyrronium on ventricular filling in patients with hyperinflation and COPD (CLAIM): a double-blind, randomised, crossover, placebo-controlled, single-centre trial

The Lancet. Respiratory Medicine
Jens M HohlfeldTobias Welte

Abstract

Pulmonary hyperinflation in chronic obstructive pulmonary disease (COPD) is associated with reduced biventricular end-diastolic volumes and increased morbidity and mortality. The combination of a long-acting β agonist (LABA) and a muscarinic antagonist (LAMA) is more effective in reducing hyperinflation than LABA-inhaled corticosteroid combination therapy but whether dual bronchodilation improves cardiac function is unknown. We did a double-blind, randomised, two-period crossover, placebo-controlled, single-centre study (CLAIM) at the Fraunhofer Institute of Toxicology and Experimental Medicine (Hannover, Germany), a specialty clinic. Eligible participants were patients aged at least 40 years with COPD, pulmonary hyperinflation (defined by a baseline residual volume >135% of predicted), a smoking history of at least ten pack-years, and airflow limitation (FEV1 <80% predicted and post-bronchodilator FEV1: forced vital capacity <0·7). Patients with stable cardiovascular disease were eligible, but those with arrhythmias, heart failure, unstable ischaemic heart disease, or uncontrolled hypertension were not. We randomly assigned participants (1:1) to either receive a combined inhaled dual bronchodilator containing the LABA indacate...Continue Reading

Citations

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