Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,514 questions · 1,543 findings · 649 reviews

No studies found 224 · 14.5%GRADE not reported 105 · 6.8%Very low 383 · 24.8%Low 447 · 29%Moderate 293 · 19%High 91 · 5.9%

Clobazam (low, medium and high doses) plus ASMs vs placebo plus ASMs

Number of participants with adverse events leading to study discontinuation · Lennox‐Gastaut syndrome, any age

Clobazam (low, medium and high doses) plus ASMs leads to higher number of participants with adverse events leading to study… compared with placebo plus ASMs (high certainty).

1 finding from 1 review

Felbamate plus ASMs vs placebo plus ASMs

Number of participants with adverse events leading to study discontinuation · Lennox‐Gastaut syndrome, any age

Felbamate plus ASMs showed no clear difference in number of participants with adverse events leading to study… compared with placebo plus ASMs (low certainty).

1 finding from 1 review

Rufinamide plus ASMs vs placebo plus ASMs

Number of participants with adverse events leading to study discontinuation · Lennox‐Gastaut syndrome, any age

Rufinamide plus ASMs showed no clear difference in number of participants with adverse events leading to study… compared with placebo plus ASMs (low certainty).

1 finding from 1 review

Cannabidiol (10 mg/kg and 20 mg/kg) plus ASMs vs placebo plus ASMs

Number of participants with adverse events leading to study discontinuation · Lennox‐Gastaut syndrome, any age

Cannabidiol (10 mg/kg and 20 mg/kg) plus ASMs leads to higher number of participants with adverse events leading to study… compared with placebo plus ASMs (high certainty).

1 finding from 1 review

Corticosteroids vs placebo

Adverse effects requiring withdrawal/discontinuation of study medication · people with nerve damage (6 to 24 months' duration) in leprosy

Corticosteroids showed no clear difference in adverse events Assessed as adverse events requiring withdrawal of… compared with placebo (moderate certainty).

1 finding from 1 review

Corticosteroids vs placebo compared

Serious adverse events (dichotomous data) ‐ suspected or probable pneumonia · critically ill patients

Corticosteroids showed no clear difference in serious adverse events (dichotomous data) ‐ suspected or probable… compared with placebo compared (high certainty).

1 finding from 1 review

Cannabinoids vs placebo

Adverse events ‐ nervous system disorders ‐ total nervous system disorders ( · diagnosis of dementia (dementia in Alzheimer’s disease, vascular dementia, or mixed dementia; any severity

Comparison: cannabinoids showed no clear difference in adverse events ‐ nervous system disorders ‐ total nervous system… compared with placebo (low certainty).

1 finding from 1 review