Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

370 questions · 377 findings · 26 reviews · Headline outcomes only

No studies found 103 · 27.3%GRADE not reported 11 · 2.9%Very low 98 · 26%Low 75 · 19.9%Moderate 68 · 18%High 22 · 5.8%

Vedolizumab vs placebo

Improved IBDQ at week 52 · people with active UC

Vedolizumab probably leads to higher improved IBDQ at week 6 compared with placebo (moderate certainty).

2 findings from 1 review

TNF‐alpha antagonists vs placebo

IBDQ at weeks 6 or 8 · people with active UC

TNF‐alpha antagonists leads to higher improved IBDQ at weeks 6 or 8 compared with placebo (high certainty).

2 findings from 1 review