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2017 ; 43
(4
): 302-312
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Long-acting muscarinic antagonists vs long-acting ? 2 agonists in COPD
exacerbations: a systematic review and meta-analysis
#MMPMID28767773
Maia IS
; Pincelli MP
; Leite VF
; Amadera J
; Buehler AM
J Bras Pneumol
2017[Jul]; 43
(4
): 302-312
PMID28767773
show ga
OBJECTIVE: To determine whether long-acting muscarinic antagonists (LAMAs)
provide superior therapeutic effects over long-acting ?2 agonists (LABAs) for
preventing COPD exacerbations. METHODS: This was a systematic review and
meta-analysis of randomized clinical trials involving patients with stable,
moderate to severe COPD according to the Global Initiative for Chronic
Obstructive Lung Disease criteria, treated with a LAMA (i.e., tiotropium bromide,
aclidinium, or glycopyrronium), followed for at least 12 weeks and compared with
controls using a LABA in isolation or in combination with a corticosteroid.
RESULTS: A total of 2,622 studies were analyzed for possible inclusion on the
basis of their title and abstract; 9 studies (17,120 participants) were included
in the analysis. In comparison with LABAs, LAMAs led to a greater decrease in the
exacerbation rate ratio (relative risk [RR] = 0.88; 95% CI: 0.84-0.93]; a lower
proportion of patients who experienced at least one exacerbation (RR = 0.90; 95%
CI: 0.87-0.94; p < 0.00001); a lower risk of exacerbation-related
hospitalizations (RR = 0.78; 95% CI: 0.69-0.87; p < 0.0001); and a lower number
of serious adverse events (RR = 0.81; 95% CI: 0.67-0.96; p = 0.0002). The overall
quality of evidence was moderate for all outcomes. CONCLUSIONS: The major
findings of this systematic review and meta-analysis were that LAMAs
significantly reduced the exacerbation rate (exacerbation episodes/year), as well
as the number of exacerbation episodes, of hospitalizations, and of serious
adverse events.
|Adrenergic beta-2 Receptor Agonists/*therapeutic use
[MESH]