Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

39 questions · 39 findings · 4 reviews

No studies found 7 · 17.9%GRADE not reported 0 · 0%Very low 10 · 25.6%Low 13 · 33.3%Moderate 7 · 17.9%High 2 · 5.1%

Anti‐IL‐5 mAb (mepolizumab) vs placebo (on top of topical steroids)

Adverse events ‐ nasopharyngitis, including sore throat · patients with severe chronic rhinosinusitis with nasal polyps

Anti‐IL‐5 mAb (mepolizumab) showed no clear difference in adverse events ‐ nasopharyngitis, including sore throat compared with placebo (on top of topical steroids) (low certainty).

1 finding from 1 review

Anti‐IgE mAb (omalizumab) vs placebo (on top of topical steroids)

Avoidance of surgery Nasal polyp score ≤4 (≤ 2 on each side) and an improvement in SNOT‐22 score of ≥ 8.9 points · patients with chronic rhinosinusitis with nasal polyps

Anti‐IgE mAb (omalizumab) may leads to higher avoidance of surgery Nasal polyp score ≤4 (≤ 2 on each side) and an… compared with placebo (on top of topical steroids) (low certainty).

1 finding from 1 review

Anti‐IgE mAb (omalizumab) vs placebo (on top of topical steroids)

Adverse events ‐ nasopharyngitis, including sore throat · patients with chronic rhinosinusitis with nasal polyps

Anti‐IgE mAb (omalizumab) showed no clear difference in adverse events ‐ nasopharyngitis, including sore throat compared with placebo (on top of topical steroids) (low certainty).

1 finding from 1 review

Anti‐IL‐4Rα mAb (dupilumab) vs placebo (on top of topical steroids)

Avoidance of surgery ‐ number of patients who had surgery as rescue treatment · patients with severe chronic rhinosinusitis with nasal polyps

Anti‐IL‐4Rα mAb (dupilumab) probably leads to lower avoidance of surgery ‐ number of patients who had surgery as rescue… compared with placebo (on top of topical steroids) (moderate certainty).

1 finding from 1 review

Anti‐IL‐4Rα mAb (dupilumab) vs placebo (on top of topical steroids)

Adverse events ‐ nasopharyngitis, including sore throat · patients with severe chronic rhinosinusitis with nasal polyps

Anti‐IL‐4Rα mAb (dupilumab) showed no clear difference in adverse events ‐ nasopharyngitis, including sore throat (longest… compared with placebo (on top of topical steroids) (low certainty).

1 finding from 1 review