12 February 2019 : Meta-Analysis
Comparative Efﬁcacy of Budesonide/Formoterol with Budesonide, Formoterol or Placebo for Stable Chronic Obstructive Pulmonary Disease: A Meta-AnalysisBin Tang12ABCDEF, Jun Wang2BF, Lin-lin Luo2BF, Qiu-gen Li21AG*, Dan Huang3ABF
Med Sci Monit 2019; 25:1155-1163
BACKGROUND: The 2018 Global Initiative for Chronic Obstructive Lung Disease publication suggested that the combination of bronchodilator therapy of inhaled glucocorticoid/long-acting β₂ adrenoceptor agonist is more effective in improving pulmonary function and health status in the treatment of patients with acute exacerbations than the individual components; however, it is not known whether this also the case for stable chronic obstructive pulmonary disease (COPD). The purpose of this meta-analysis was to evaluate the effectiveness of budesonide/formoterol in the maintenance and relief therapy of patients with stable COPD.
MATERIAL AND METHODS: An electronic search of the literature in MEDLINE, Embase, and Cochrane Central Register of Controlled Trials was undertaken to identify published randomized controlled trials (RCTs) of ≥12 weeks duration comparing the budesonide/formoterol, with budesonide, formoterol, or placebo in the treatment of patients with stable COPD. The identified RCTs were reviewed. The mean difference (MD) with corresponding 95% confidence interval (CI) was used to pool the results.
RESULTS: Seven high quality studies with RCTs met the inclusion criteria for meta-analysis. Compared with budesonide alone, the combination therapy of budesonide/formoterol showed significant improvement in the following spirometric indices: pre-dose forced expiratory volume in 1 second (FEV₁) (SMD: 0.26, 95% CI: 0.18, 0.34; P=0.000). In addition, versus formoterol alone, budesonide/formoterol was associated with a significant increase in pre-dose FEV₁ (SMD: 0.12, 95% CI: 0.07, 0.17; P=0.000). A similar pattern was also evident in the comparison to placebo, where budesonide/formoterol yielded greater increase in pre-dose FEV₁ (SMD: 0.24, 95% CI: 0.18, 0.30; P=0.000). Moreover, compared with other controls, the combination of budesonide-formoterol signiﬁcantly improved morning peak expiratory flow and evening peak expiratory flow, signiﬁcantly reduced the total score of St. George’s Respiratory Questionnaire.
CONCLUSIONS: For stable COPD patients, compared with controls (monocomponents or placebo), budesonide/formoterol improved pulmonary function and health status. Future larger long-term RCTs are warranted to assess the beneficial clinical efficacy of budesonide/formoterol in COPD patients.
Keywords: Budesonide, meta-analysis, Pulmonary Disease, Chronic Obstructive, Randomized controlled trial, Aged, Budesonide, Formoterol Fumarate Drug Combination, Forced Expiratory Volume, Formoterol Fumarate, Middle Aged, Randomized Controlled Trials as Topic, Respiratory Function Tests
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