Cochrane · systematic review · CD013797

Addition of long‐acting beta2 agonists or long‐acting muscarinic antagonists versus doubling the dose of inhaled corticosteroids (ICS) in adolescents and adults with uncontrolled asthma with medium dose ICS: a systematic review and network meta‐analysis

Oba, Y, Anwer, S, Patel, T, et al. · Cochrane Database of Systematic Reviews · 2023 · 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
43
current version
GRADE rated
29
No studies
7
Included studies
NR
No studies 7 · 16.3%Ungraded 7 · 16.3%Very low 1 · 2.3%Low 6 · 14%Moderate 11 · 25.6%High 11 · 25.6%

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

NMA Summary of findings for severe exacerbations

Population: adolescents and adults with uncontrolled asthma, despite being on medium‐dose ICS Interventions: HD‐ICS, LD‐ICS/LABA, MD‐ICS/LAMA, MD‐ICS/LABA, or HD‐ICS/LABA Control: MD‐ICS Outcome: severe asthma exacerbation
7 questions
OutcomeEffectEvidenceStatus / GRADE
Total studies: 17 RCTs Total participants: 22,819
no estimate extracted17 studies · 22819 participantsUngraded
HD‐ICS (Direct evidence; 4 RCTs; 3003 participants)
no estimate extracted4 studies · 3003 participantsModerate
LD‐ICS/LABA (Direct evidence; 0 RCTs; 0 participants)
no estimate extracted0 studies · 0 participantsLow
MD‐ICS/LAMA (Direct evidence; 1 RCT; 282 participants)
no estimate extracted1 study · 282 participantsLow
MD‐ICS/LABA (Direct evidence; 10 RCTs; 15,651 participants)
no estimate extracted10 studies · 15651 participantsModerate
HD‐ICS/LABA (Direct evidence; 3 RCTs; 3319 participants)
no estimate extracted3 studies · 3319 participantsLow
MD‐ICS
no estimate extractedNRNo studies

NMA Summary of findings for moderate to severe exacerbations

Population: adolescents and adults with uncontrolled asthma, despite being on medium‐dose ICS Interventions: HD‐ICS, LD‐ICS/LABA, MD‐ICS/LAMA, MD‐ICS/LABA, or HD‐ICS/LABA Control: MD‐ICS Outcome: moderate to severe asthma exacerbation
7 questions
OutcomeEffectEvidenceStatus / GRADE
Total studies: 25 RCTs Total participants: 25,583
no estimate extracted25 studies · 25583 participantsUngraded
HD‐ICS (Direct evidence; 4 RCTs; 1685 participants)
no estimate extracted4 studies · 1685 participantsModerate
LD‐ICS/LABA (Direct evidence; 0 RCTs; 0 participants)
no estimate extracted0 studies · 0 participantsLow
MD‐ICS/LAMA (Direct evidence; 2 RCTs; 679 participants)
no estimate extracted2 studies · 679 participantsLow
MD‐ICS/LABA (Direct evidence; 12 RCTs; 7569 participants)
no estimate extracted12 studies · 7569 participantsModerate
HD‐ICS/LABA (Direct evidence; 2 RCTs; 1759 participants)
no estimate extracted2 studies · 1759 participantsModerate
MD‐ICS
no estimate extractedNRNo studies

NMA Summary of findings for change from baseline in ACQ score at 12 months

Population: adolescents and adults with uncontrolled asthma, despite being on medium‐dose ICS Interventions: HD‐ICS, MD‐ICS/LABA, or HD‐ICS/LABA Control: MD‐ICS Outcome: change from baseline in ACQ scores at 12 months
5 questions
OutcomeEffectEvidenceStatus / GRADE
Total studies: 4 RCTs Total participants: 5681
no estimate extracted4 studies · 5681 participantsUngraded
HD‐ICS (Direct evidence; 2 RCTs; 1005 participants)
no estimate extracted2 studies · 1005 participantsHigh
MD‐ICS/LABA (Direct evidence; 1 RCT; 774 participants)
no estimate extracted1 study · 774 participantsModerate
HD‐ICS/LABA (Direct evidence; 2 RCTs; 2863 participants)
no estimate extracted2 studies · 2863 participantsHigh
MD‐ICS
no estimate extractedNRNo studies

NMA Summary of findings for change from baseline in AQLQ score at 6 months

Population: adolescents and adults with uncontrolled asthma, despite being on medium‐dose ICS Interventions: HD‐ICS, LD‐ICS/LABA, MD‐ICS/LABA, or HD‐ICS/LABA Control: MD‐ICS Outcome: change from baseline in AQLQ scores at 6 months
6 questions
OutcomeEffectEvidenceStatus / GRADE
Total studies: 6 RCTs Total participants: 4276
no estimate extracted6 studies · 4276 participantsUngraded
HD‐ICS (Direct evidence; 0 RCTs; 0 participants)
no estimate extracted0 studies · 0 participantsVery low
LD‐ICS/LABA (Direct evidence; 3 RCTs; 1719 participants)
no estimate extracted3 studies · 1719 participantsHigh
MD‐ICS/LABA (Direct evidence; 3 RCTs; 1359 participants)
no estimate extracted3 studies · 1359 participantsHigh
HD‐ICS/LABA (Direct evidence; 0 RCTs; 0 participants)
no estimate extracted0 studies · 0 participantsModerate
MD‐ICS
no estimate extractedNRNo studies

NMA Summary of findings for ACQ responders at 6 months

Population: adolescents and adults with uncontrolled asthma, despite being on medium‐dose ICS Interventions: HD‐ICS, MD‐ICS/LAMA, MD‐ICS/LABA, or HD‐ICS/LABA Control: MD‐ICS Outcome: ACQ response at 6 months
6 questions
OutcomeEffectEvidenceStatus / GRADE
Total studies: 6 RCTs Total participants: 7252
no estimate extracted6 studies · 7252 participantsUngraded
HD‐ICS (Direct evidence; 1 RCT; 798 participants)
no estimate extracted1 study · 798 participantsLow
MD‐ICS/LAMA (Direct evidence; 3 RCTs; 2219 participants)
no estimate extracted3 studies · 2219 participantsModerate
MD‐ICS/LABA (Direct evidence; 2 RCTs; 1853 participants)
no estimate extracted2 studies · 1853 participantsHigh
HD‐ICS/LABA (Direct evidence; 1 RCT; 1210 participants)
no estimate extracted1 study · 1210 participantsHigh
MD‐ICS
no estimate extractedNRNo studies

NMA Summary of findings for ACQ responders at 12 months

Population: adolescents and adults with uncontrolled asthma, despite being on medium‐dose ICS Interventions: HD‐ICS, MD‐ICS/LABA, or HD‐ICS/LABA Control: MD‐ICS Outcome: ACQ response at 12 months
5 questions
OutcomeEffectEvidenceStatus / GRADE
Total studies: 3 RCTs Total participants: 3828
no estimate extracted3 studies · 3828 participantsUngraded
HD‐ICS (Direct evidence; 2 RCTs; 1011 participants)
no estimate extracted2 studies · 1011 participantsModerate
MD‐ICS/LABA (Direct evidence; 1 RCT; 774 participants)
no estimate extracted1 study · 774 participantsModerate
HD‐ICS/LABA (Direct evidence; 1 RCT; 1167 participants)
no estimate extracted1 study · 1167 participantsHigh
MD‐ICS
no estimate extractedNRNo studies

NMA Summary of findings for dropouts due to AEs

Population: adolescents and adults with uncontrolled asthma, despite being on medium‐dose ICS Interventions: HD‐ICS, LD‐ICS/LABA, MD‐ICS/LAMA, MD‐ICS/LABA, or HD‐ICS/LABA Control: MD‐ICS Outcome: dropouts due to AEs
7 questions
OutcomeEffectEvidenceStatus / GRADE
Total studies: 34 RCTs Total participants: 32,684
no estimate extracted34 studies · 32684 participantsUngraded
HD‐ICS (Direct evidence; 6 RCTs; 2211 participants)
no estimate extracted6 studies · 2211 participantsHigh
LD‐ICS/LABA (Direct evidence; 1 RCT; 5846 participants)
no estimate extracted1 study · 5846 participantsHigh
MD‐ICS/LAMA (Direct evidence; 4 RCTs; 2239 participants)
no estimate extracted4 studies · 2239 participantsModerate
MD‐ICS/LABA (Direct evidence; 21 RCTs; 20326 participants)
no estimate extracted21 studies · 20326 participantsHigh
HD‐ICS/LABA (Direct evidence; 4 RCTs; 2750 participants)
no estimate extracted4 studies · 2750 participantsHigh
MD‐ICS
no estimate extractedNRNo studies