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What do systematic reviews say?

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Evidence found and GRADE certainty

4,730 questions · 18,059 findings · 1,282 reviews

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No studies found 4,360 · 24.1%GRADE not reported 2,529 · 14%Very low 4,641 · 25.7%Low 4,007 · 22.2%Moderate 2,057 · 11.4%High 465 · 2.6%

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Summary of findings table ‐ Kappa‐opioid agonists vs placebo

Risk for at least one adverse drug reaction (ADR) per participant · patients with chronic kidney disease (CKD) pruritus

Summary of findings table ‐ Kappa‐opioid agonists may leads to higher risk for at least one adverse drug reaction (ADR) per patient compared with placebo (low certainty).

1 finding from 1 review

Summary of findings table ‐ Ondansetron vs placebo

Risk for at least one adverse event per patient · patients with chronic kidney disease (CKD) pruritus

It is very uncertain whether summary of findings table ‐ Ondansetron changes risk for at least one adverse event per patient compared with placebo (very low certainty).

1 finding from 1 review