Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

241 questions · 247 findings · 31 reviews

No studies found 64 · 25.9%GRADE not reported 6 · 2.4%Very low 32 · 13%Low 73 · 29.6%Moderate 54 · 21.9%High 18 · 7.3%

Tixagevimab/cilgavimab vs placebo

Development of clinical COVID‐19 symptoms within 6 months · SARS‐CoV‐2 uninfected people without defined exposure, or with potential exposure to SARS‐CoV‐2

Tixagevimab/cilgavimab leads to lower development of clinical COVID‐19 symptoms within 6 months compared with placebo (high certainty).

1 finding from 1 review

Casirivimab/imdevimab vs placebo

Development of clinical COVID‐19 symptoms within 30 days · SARS‐CoV‐2 uninfected people without defined exposure, or with potential exposure to SARS‐CoV‐2

Casirivimab/imdevimab leads to lower development of clinical COVID‐19 symptoms within 30 days compared with placebo (high certainty).

1 finding from 1 review

Casirivimab/imdevimab vs placebo

Serious adverse events until data cut‐offb · SARS‐CoV‐2 uninfected people without defined exposure, or with potential exposure to SARS‐CoV‐2

Casirivimab/imdevimab showed no clear difference in serious adverse events until data cut‐offb compared with placebo (low certainty).

1 finding from 1 review