• Ching-Fu Weng, Chien-Chih Wu, Mei-Hsuan Wu, and Fang-Ju Lin.
• Division of Pulmonary Medicine, Department of Internal Medicine, Hsinchu Cathay General Hospital, Hsinchu, Taiwan; School of Medicine, National Tsing Hua University, Hsinchu, Taiwan.
• Chest. 2023 Apr 1; 163 (4): 799814799-814.

BackgroundResearchers have yet to obtain conclusive evidence differentiating among fixed-dose combinations (FDCs) of long-acting muscarinic antagonists (LAMAs) and long-acting β2-agonists (LABAs) for COPD in terms of real-world clinical outcomes.Research QuestionWhat are the differences between available LAMA/LABA FDCs in the risk of acute exacerbation (AE) and cardiovascular events?Study Design And MethodsThis retrospective cohort study based on a national insurance claims database included patients with COPD ≥ 40 years of age who were newly prescribed glycopyrronium (GLY)/indacaterol (IND), umeclidinium (UMEC)/vilanterol (VI), or tiotropium (TIO)/olodaterol (OLO) FDC between January 1, 2015, and June 30, 2019. Propensity score matching and Cox regression models were used to compare outcomes of AE and cardiovascular events associated with LAMA/LABA FDC treatment.ResultsAmong the 44,498 patients identified and included, 15,586 received GLY/IND, 20,460 received UMEC/VI, and 8,452 received TIO/OLO. Baseline characteristics were well balanced after 1:1 matching of UMEC/VI and GLY/IND, 2:1 matching of UMEC/VI and TIO/OLO, and 2:1 matching of GLY/IND and TIO/OLO. Risk of severe AE was lower among patients treated with UMEC/VI or GLY/IND than among those who received TIO/OLO (UMEC/VI vs TIO/OLO: 17.85 vs 29.32 per 100 person-years; hazard ratio, 0.76; 95% CI, 0.68-0.84; GLY/IND vs TIO/OLO: 15.54 vs 25.53 per 100 person-years; hazard ratio, 0.77; 95% CI, 0.67-0.88). In addition, GLY/IND users tended to have a lower risk of cardiovascular events than TIO/OLO users, but the difference dissipated when restricting follow up to a shorter duration.InterpretationOur results revealed that the risk of severe AE was lower among patients with COPD receiving UMEC/VI or GLY/IND than among those receiving TIO/OLO, whereas the incidence of cardiovascular events was similar across groups but was slightly lower in GLY/IND users when compared with TIO/OLO users. Further research will be required to confirm these findings.Copyright © 2022 American College of Chest Physicians. Published by Elsevier Inc. All rights reserved.

22 keywords...

hide…