Comparison of Effectiveness Using Different Dual Broncho- dilator Agents in Chronic Obstructive Pulmonary Disease Treatment

Abstract

BackgroundThe efficacy and safety of fixed dual long-acting bronchodilators for chronic obstruction pulmonary disease (COPD) patients has been well established; however, there is a paucity of clinical effectiveness comparison in patients with COPD treatment. The aim of the current study was to compare the efficacy of three once daily dual bronchodilator agents in patients with COPD.MethodsPatients with diagnosed COPD and treated with a long-acting beta agonist (LABA) + long-acting muscarinic antagonist (LAMA) fixed-dose combination therapy (UME/VIL [umeclidinium and vilanterol inhalation powder], IND/GLY [indacaterol and glycopyrronium], and TIO/OLO [tiotoprium and olodaterol]) were enrolled in this retrospective study over a period of 12 months. Effectiveness assessments were evaluated using a COPD assessment test (CAT) and lung function parameters. Besides, times for acute exacerbation were also assessed.ResultsThe enrolled patients’ number was 77 in IND/GLY, 76 in UME/VIL and 83 in TIO/OLO. Lung function measurements with FEV1 had significantly improved for patients using TIO/OLO (98.7 ml) compared to those of IND/GLY (65.2 ml) and UMEC/VIL (64.4 ml) (p<0.001). CAT scores were also significantly decreased in patients treated with TIO/OLO (CAT down 5.6) than those with IND/GLY (3.8) and UMEC/VIL (3.9) (p=0.03). Acute exacerbation was also reduced in patients using TIO/OLO (4.8%) compared with those using IND/GLY (10.4%) and UMEC/VIL (10.5%) (p=0.01).ConclusionSignificant improvement in pulmonary function, symptoms were demonstrated after 12 months of LABA+LAMA fixed-dose combination therapy with 3 different treatment options. TIO/OLO demonstrated higher therapeutic effects compared with UME/VIL or IND/GLY. Determining clinical relevance will require a well-designed randomized controlled trial.Key Words: Chronic obstructive pulmonary disease (COPD), dual bronchodilator, LABA/LAMA