Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

4,721 questions · 19,640 findings · 2,039 reviews · Headline outcomes only

No studies found 3,754 · 19.1%GRADE not reported 1,273 · 6.5%Very low 4,859 · 24.7%Low 5,568 · 28.4%Moderate 3,240 · 16.5%High 946 · 4.8%

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Casirivimab/imdevimab 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

Casirivimab/imdevimab may leads to lower development of clinical COVID‐19 symptoms within 6 months compared with placebo (low certainty).

1 finding from 1 review

Casirivimab/imdevimab vs placebo

Quality of life at longest · SARS‐CoV‐2 uninfected people without defined exposure, or with potential exposure to SARS‐CoV‐2

The review found no eligible studies for this question.

2 findings from 1 review

Casirivimab/imdevimab vs placebo

Adverse events: grade 1 to 2 · SARS‐CoV‐2 uninfected people without defined exposure, or with potential exposure to SARS‐CoV‐2

The review found no eligible studies for this question.

2 findings from 1 review

Casirivimab/imdevimab vs placebo

Grades 3 and 4 adverse events · SARS‐CoV‐2 uninfected people without defined exposure, or with potential exposure to SARS‐CoV‐2

It is very uncertain whether casirivimab/imdevimab changes adverse events: grade 3 to 4 within 6 months compared with placebo (very low certainty).

2 findings from 1 review

Casirivimab/imdevimab vs placebo

Adverse events: all grades · SARS‐CoV‐2 uninfected people without defined exposure, or with potential exposure to SARS‐CoV‐2

Casirivimab/imdevimab showed no clear difference in adverse events: all grades within 6 months compared with placebo (low certainty).

2 findings from 1 review

Casirivimab/imdevimab vs placebo

Serious adverse events within 6 months · SARS‐CoV‐2 uninfected people without defined exposure, or with potential exposure to SARS‐CoV‐2

It is very uncertain whether casirivimab/imdevimab changes serious adverse events within 6 months compared with placebo (very low certainty).

1 finding from 1 review

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