Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,741 questions · 1,821 findings · 207 reviews

No studies found 297 · 16.3%GRADE not reported 191 · 10.5%Very low 333 · 18.3%Low 466 · 25.6%Moderate 414 · 22.7%High 120 · 6.6%

Oxcarbazepine vs phenytoin

Time to treatment failure (any reason related to treatment) Subgroup: generalised onset seizures Range of · people with newly diagnosed epilepsy

Summary of findings: oxcarbazepine showed no clear difference in time to treatment failure (any reason related to treatment)… compared with phenytoin (primary outcomes) (moderate certainty).

1 finding from 1 review

Oxcarbazepine vs phenytoin

Time to treatment failure due to adverse events All participants Range of · people with newly diagnosed epilepsy

Summary of findings: oxcarbazepine leads to lower time to treatment failure due to adverse events All participants… compared with phenytoin (primary outcomes) (high certainty).

1 finding from 1 review

Oxcarbazepine vs phenytoin

Time to treatment failure due to lack of efficacy All participants Range of · people with newly diagnosed epilepsy

Summary of findings: oxcarbazepine showed no clear difference in time to treatment failure due to lack of efficacy All participants… compared with phenytoin (primary outcomes) (moderate certainty).

1 finding from 1 review

Oxcarbazepine vs phenytoin

Time to first seizure (post‐randomisation) All participants Range of · people with newly diagnosed epilepsy

Summary of findings: oxcarbazepine showed no clear difference in time to first seizure (post‐randomisation) All participants Range of compared with phenytoin (secondary outcomes) (moderate certainty).

1 finding from 1 review

Oxcarbazepine vs phenytoin

Time to first seizure (post‐randomisation) Subgroup: focal onset seizures Range of · people with newly diagnosed epilepsy

Summary of findings: oxcarbazepine showed no clear difference in time to first seizure (post‐randomisation) Subgroup: focal onset… compared with phenytoin (secondary outcomes) (moderate certainty).

1 finding from 1 review

Oxcarbazepine vs phenytoin

Time to first seizure (post‐randomisation) Subgroup: generalised onset seizures Range of · people with newly diagnosed epilepsy

Summary of findings: oxcarbazepine showed no clear difference in time to first seizure (post‐randomisation) Subgroup: generalised… compared with phenytoin (secondary outcomes) (low certainty).

1 finding from 1 review