Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

4,808 questions · 8,953 findings · 827 reviews · Headline outcomes only

No studies found 1,891 · 21.1%GRADE not reported 380 · 4.2%Very low 2,100 · 23.5%Low 2,449 · 27.4%Moderate 1,684 · 18.8%High 449 · 5%

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Intervention not reported

Infusion‐related reactions (number of participants with one or more reaction) · adults and children with mucopolysaccharidosis I

The intervention showed no clear difference in infusion‐related reactions (number of participants with one or more… (low certainty).

1 finding from 1 review

Intervention not reported

Antibody production: number of participants developing IgG antibodies · adults and children with mucopolysaccharidosis I

It is very uncertain whether the intervention changes antibody production: number of participants developing IgG antibodies (very low certainty).

1 finding from 1 review

Sulthiame add‐on vs placebo

50% or greater reduction in seizure frequency · patients between 3 to 15 months of age with West syndrome

The review found no eligible studies for this question.

1 finding from 1 review

Sulthiame add‐on vs placebo

Complete cessation of seizures 9 days · patients between 3 to 15 months of age with West syndrome

It is very uncertain whether sulthiame add‐on changes complete cessation of seizures during compared with placebo (very low certainty).

1 finding from 1 review

Sulthiame add‐on vs placebo

Number experiencing adverse effects · patients between 3 to 15 months of age with West syndrome

It is very uncertain whether sulthiame add‐on changes adverse effects: total number of participants experiencing one or… compared with placebo (very low certainty).

1 finding from 1 review

Sulthiame add‐on vs placebo

Somnolence · patients between 3 to 15 months of age with West syndrome

It is very uncertain whether sulthiame add‐on changes adverse effects: somnolence compared with placebo (very low certainty).

1 finding from 1 review