Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

4,756 questions · 13,493 findings · 1,305 reviews · Headline outcomes only

No studies found 2,594 · 19.2%GRADE not reported 728 · 5.4%Very low 2,868 · 21.3%Low 3,777 · 28%Moderate 2,620 · 19.4%High 906 · 6.7%

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Benznidazole vs placebo

Clearance of parasitaemia demonstrated by negative xenodiagnosis, blood culture, and/or molecular assays (N) · adults with both late‐stage, symptomatic Chagas disease and CCC

It is very uncertain whether benznidazole changes clearance of parasitaemia demonstrated by negative xenodiagnosis,… compared with placebo (very low certainty).

1 finding from 1 review

Benznidazole vs placebo

Clinical improvement (N) (a) Heart failure (b) Sustained ventricular tachycardia · adults with both late‐stage, symptomatic Chagas disease and CCC

Benznidazole showed no clear difference in clinical improvement (N) (a) Heart failure (b) Sustained ventricular… compared with placebo (low certainty).

1 finding from 1 review

Antioxidants vs placebo

Global impression of deterioration (investigator defined global impression of deterioration) · people with multiple sclerosis

Antioxidant showed no clear difference in global impression of deterioration (investigator defined global… compared with placebo (low certainty).

1 finding from 1 review

Antioxidants vs placebo

Number of participants with gadolinium‐enhancing T1 lesions on MRI · people with multiple sclerosis

It is very uncertain whether antioxidant changes MRI activity(assessed as number of participants with… compared with placebo (very low certainty).

1 finding from 1 review