Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

2,539 questions · 2,602 findings · 424 reviews · Headline outcomes only

No studies found 572 · 22%GRADE not reported 189 · 7.3%Very low 527 · 20.3%Low 685 · 26.3%Moderate 514 · 19.8%High 115 · 4.4%

Fixed‐dose combination aclidinium/formoterol vs formoterol

Quality of life: number of participants with clinically significant improvement (≥ 4 units) in SGRQ total score · patients with chronic obstructive pulmonary disease

Fixed‐dose combination aclidinium/formoterol showed no clear difference in quality of life: number of participants with clinically significant… compared with formoterol (low certainty).

1 finding from 1 review

Once‐daily ICS/LABA combined inhalers vs once‐daily LAMA

Mortality (all‐cause) · patients with chronic obstructive pulmonary disease

It is very uncertain whether once‐daily ICS/LABA combined inhalers changes mortality (all‐cause) compared with once‐daily LAMA (very low certainty).

1 finding from 1 review

Once‐daily ICS/LABA combined inhalers vs once‐daily LAMA

Any COPD exacerbation that requires short‐burst oral corticosteroids or antibiotics, or both · patients with chronic obstructive pulmonary disease

It is very uncertain whether once‐daily ICS/LABA combined inhalers changes any COPD exacerbation that requires short‐burst oral corticosteroids… compared with once‐daily LAMA (very low certainty).

1 finding from 1 review

Once‐daily ICS/LABA combined inhalers vs once‐daily LAMA

Pneumonia · patients with chronic obstructive pulmonary disease

It is very uncertain whether once‐daily ICS/LABA combined inhalers changes pneumonia compared with once‐daily LAMA (very low certainty).

1 finding from 1 review

Once‐daily ICS/LABA combined inhalers vs once‐daily LAMA

Hospital admissions · patients with chronic obstructive pulmonary disease

It is very uncertain whether once‐daily ICS/LABA combined inhalers changes hospital admissions (all‐cause) compared with once‐daily LAMA (very low certainty).

1 finding from 1 review

LABA/LAMA vs LABA plus inhaled corticosteroid (ICS)

Moderate to severe exacerbations: high‐risk population · chronic obstructive pulmonary disease with predicted FEV1 of less than 80%

LABA/LAMA showed no clear difference in moderate to severe exacerbations: high‐risk population compared with LABA/ICS (moderate certainty).

1 finding from 1 review

LABA/LAMA vs LAMA

Severe exacerbations: low‐risk population · chronic obstructive pulmonary disease with predicted FEV1 of less than 80%

LABA/LAMA showed no clear difference in severe exacerbations: low‐risk population compared with LAMA (moderate certainty).

1 finding from 1 review

LABA/LAMA vs LABA

Moderate to severe exacerbations: low‐risk population · chronic obstructive pulmonary disease with predicted FEV1 of less than 80%

LABA/LAMA probably leads to lower moderate to severe exacerbations: low‐risk population compared with LABA (moderate certainty).

1 finding from 1 review

LABA/LAMA vs LABA

Severe exacerbations: low‐risk population · chronic obstructive pulmonary disease with predicted FEV1 of less than 80%

LABA/LAMA showed no clear difference in severe exacerbations: low‐risk population compared with LABA (moderate certainty).

1 finding from 1 review

LABA/ICS vs LAMA

Moderate to severe exacerbations: high‐risk population · chronic obstructive pulmonary disease with predicted FEV1 of less than 80%

LABA/ICS showed no clear difference in moderate to severe exacerbations: high‐risk population compared with LAMA (moderate certainty).

1 finding from 1 review

LABA/LAMA vs LABA plus inhaled corticosteroid (ICS)

Moderate to severe exacerbations: low‐risk population · chronic obstructive pulmonary disease with predicted FEV1 of less than 80%

LABA/LAMA showed no clear difference in moderate to severe exacerbations: low‐risk population compared with LABA/ICS (moderate certainty).

1 finding from 1 review