Cochrane · systematic review · CD012930

Once daily long‐acting beta2‐agonists and long‐acting muscarinic antagonists in a combined inhaler versus placebo for chronic obstructive pulmonary disease

Maqsood, U, Ho, TN, Palmer, K, et al. · Cochrane Database of Systematic Reviews · 2019 · Cochrane Library

AirwaysAMSTAR 2: not assessed
SoF tableOnly the outcomes this review put in its Summary of Findings table are listed (the Cochrane Handbook caps them at about seven per comparison). Its other analyses are not shown here.
Questions
7
current version
GRADE rated
7
No studies
0
Included studies
NR
No studies 0 · 0%Ungraded 0 · 0%Very low 0 · 0%Low 1 · 14.3%Moderate 3 · 42.9%High 3 · 42.9%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

Questions and results

Once‐daily LABA/LAMA in a combined inhaler compared with placebo in adults with COPD

Population: Adults with COPD
7 questions
OutcomeEffectEvidenceStatus / GRADE
All‐cause mortality (3‐week to 1‐year
Once‐daily LABA/LAMA in a combined inhaler vs placebo
OR 1.88 [0.81, 4.36]18 studies · 8752 participantsLow
Downgraded: indirectness
Serious adverse events (3‐week to 1‐year
Once‐daily LABA/LAMA in a combined inhaler vs placebo
OR 1.06 [0.88, 1.28]22 studies · 10536 participantsHigh
Acute exacerbations of COPD (4‐week to 24‐week
Once‐daily LABA/LAMA in a combined inhaler vs placebo
OR 0.53 [0.36, 0.78]3 studies · 1127 participantsModerate
Downgraded: imprecision, inconsistency, indirectness
Difference vs placebo in adjusted SGRQ score (HRQoL) Scale 0‐100, lower on the scale is better. (12‐week to 1‐year
Once‐daily LABA/LAMA in a combined inhaler vs placebo
no estimate extracted8 studies · 4952 participantsHigh
Difference vs placebo in adjusted trough FEV1 at EOT (3‐week to 1‐year
Once‐daily LABA/LAMA in a combined inhaler vs placebo
no estimate extracted13 studies · 6598 participantsModerate
Downgraded: imprecision, inconsistency, indirectness
Difference vs placebo in adjusted peak FEV1 (3‐week to 6‐month
Once‐daily LABA/LAMA in a combined inhaler vs placebo
no estimate extracted7 studies · 4188 participantsModerate
Downgraded: imprecision, inconsistency, indirectness
Adverse events (3‐week to 1‐year
Once‐daily LABA/LAMA in a combined inhaler vs placebo
OR 0.95 [0.86, 1.04]17 studies · 8235 participantsHigh