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Παρασκευή 9 Φεβρουαρίου 2018

Use of ICS/LABA Combinations or LAMA is Associated with a Lower Risk of Acute Exacerbation in Patients with Coexistent COPD and Asthma

Publication date: Available online 10 February 2018
Source:The Journal of Allergy and Clinical Immunology: In Practice
Author(s): Vincent Yi-Fong Su, Kuang-Yao Yang, Yao-Hsu Yang, Ying-Huang Tsai, Diahn-Warng Perng, Wei-Juin Su, Kun-Ta Chou, Kang-Cheng Su, Yung-Feng Yen, Pau-Chung Chen
BackgroundBased on current guidelines, more research is urgently needed to guide appropriate treatment for patients with asthma−chronic obstructive pulmonary disease overlap.ObjectiveThe objective of this study was to investigate medication effects on acute exacerbation in patients with coexistent COPD and asthma.MethodsUsing Taiwan's National Health Insurance Research Database, we conducted a nationwide population-based study to evaluate medication effects in patients with COPD and asthma. Patients diagnosed with both asthma and COPD between 1997 and 2012 were enrolled as the COPD + asthma cohort. The primary endpoint was acute exacerbation. The definitions of COPD and asthma were validated. The validation study confirmed the accuracy of definitions of COPD (86.2% sensitivity) and asthma (92.0% sensitivity).ResultsThe study included 251,398 patients with COPD + asthma and 514,522 patients with COPD alone, with a mean follow-up period of 9.85 years. After adjustment, hazard ratios (HRs) for long-acting muscarinic antagonist (LAMA) and inhaled corticosteroid/long-acting beta 2 agonist (ICS/LABA) combinations were lower [time-dependent model, 1 year: LAMA, HR 0.51, 95% confidence interval (CI) 0.49–0.54; ICS/LABA combinations, HR 0.61, 95% CI 0.60–0.62; all p < 0.0001] than were those for LABAs or ICSs in patients with COPD and asthma.ConclusionsLAMA or ICS/LABA combinations use was associated with a lower risk of acute exacerbation in patients with COPD and asthma in this study.



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