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DOI: 10.1055/s-0039-1678042
Tiotropium provides greater improvements in FEV1 than leukotriene receptor antagonists as add-on to ICS in adults with asthma: a systematic review
Publikationsverlauf
Publikationsdatum:
19. Februar 2019 (online)
Introduction Adults with asthma who are not controlled on inhaled corticosteroids (ICS) may be treated with tiotropium or leukotriene receptor antagonists (LTRAs), such as montelukast or zafirlukast, as add-on therapies.
Aim In this systematic literature search we compared the efficacy of tiotropium and LTRAs as add-on to ICS in adult patients with asthma.
Methods We searched PubMed for publications that compared tiotropium or LTRAs with placebo, as add-on to ICS, for at least 4 weeks, reporting change in forced expiratory volume in 1 second (FEV1) or number of exacerbations requiring oral corticosteroids (OCS).
Results The systematic literature search identified four relevant publications: a tiotropium meta-analysis, two montelukast randomised controlled trials (RCTs) and a zafirlukast RCT. Overall, tiotropium had a greater effect on FEV1 than LTRAs. Mean change in FEV1 from baseline versus placebo was 0.14 – 0.19 L with tiotropium, 0.03 – 0.10 L with montelukast and 0.12 L with zafirlukast. Exacerbations requiring OCS were significantly reduced with tiotropium, but not montelukast, versus placebo. Exacerbations requiring additional controller therapy (70% of therapies were OCS) were significantly reduced with zafirlukast versus placebo.
Conclusion This systematic literature review suggests that tiotropium provides greater improvements in FEV1 than montelukast or zafirlukast as an add-on to ICS in adults with asthma.
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