Author:
Chen Chun-Yu,Pan Sheng-Wei,Hsu Chia-Chen,Liu Jason J.,Kumamaru Hiraku,Dong Yaa-Hui
Abstract
Abstract
Background
Use of combinations of long-acting β2 agonists/long-acting muscarinic antagonists (LABA/LAMA) in patients with chronic obstructive pulmonary disease (COPD) is increasing. Nevertheless, existing evidence on cardiovascular risk associated with LABA/LAMA versus another dual combination, LABA/inhaled corticosteroids (ICS), was limited and discrepant.
Aim
The present cohort study aimed to examine comparative cardiovascular safety of LABA/LAMA and LABA/ICS with a target trial emulation framework, focusing on dual fixed-dose combination (FDC) therapies.
Methods
We identified patients with COPD who initiated LABA/LAMA FDC or LABA/ICS FDC from a nationwide Taiwanese database during 2017–2020. The outcome of interest was a hospitalized composite cardiovascular events of acute myocardial infarction, unstable angina, heart failure, cardiac dysrhythmia, and ischemic stroke. Cox regression models were used to estimate hazard ratios (HRs) and 95% confidence intervals (CIs) for composite and individual cardiovascular events after matching up to five LABA/LAMA FDC initiators to one LABA/ICS FDC initiator using propensity scores (PS).
Results
Among 75,926 PS-matched patients, use of LABA/LAMA FDC did not show a higher cardiovascular risk compared to use of LABA/ICS FDC, with a HR of 0.89 (95% CI, 0.78–1.01) for the composite events, 0.80 (95% CI, 0.61–1.05) for acute myocardial infarction, 1.48 (95% CI, 0.68–3.25) for unstable angina, 1.00 (95% CI, 0.80–1.24) for congestive heart failure, 0.62 (95% CI, 0.37–1.05) for cardiac dysrhythmia, and 0.82 (95% CI, 0.66–1.02) for ischemic stroke. The results did not vary substantially in several pre-specified sensitivity and subgroup analyses.
Conclusion
Our findings provide important reassurance about comparative cardiovascular safety of LABA/LAMA FDC treatment among patients with COPD.
Funder
Yen Tjing Ling Medical Foundation
Publisher
Springer Science and Business Media LLC
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