Findings

What do systematic reviews say?

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Evidence found and GRADE certainty

1,615 questions · 1,673 findings · 190 reviews · Headline outcomes only

No studies found 278 · 16.6%GRADE not reported 85 · 5.1%Very low 328 · 19.6%Low 460 · 27.5%Moderate 402 · 24%High 120 · 7.2%

Sodium valproate vs phenytoin monotherapy

Time to 12‐month remission ‐ stratified by epilepsy type ‐ Generalized onset seizures (tonic‐clonic only) Range of · adults and children with newly‐onset focal onset or generalised tonic‐clonic seizures

Sodium valproate showed no clear difference in time to achieve 12‐month remission (seizure‐free period) Subgroup:… compared with phenytoin monotherapy (moderate certainty).

1 finding from 1 review

Carbamazepine vs phenobarbitone

Time to treatment failure (any reason related to treatment) All participants Range of · adults and children with newly onset partial or generalised epilepsy

Carbamazepine probably leads to lower time to treatment failure (any reason related to treatment) All… compared with phenobarbitone (moderate certainty).

1 finding from 1 review

Carbamazepine vs phenobarbitone

Time to treatment failure (any reason related to treatment) Subgroup: focal onset seizures Range of · adults and children with newly onset partial or generalised epilepsy

Carbamazepine may leads to lower time to treatment failure (any reason related to treatment)… compared with phenobarbitone (low certainty).

1 finding from 1 review

Carbamazepine vs phenobarbitone

Time to treatment failure (any reason related to treatment) Subgroup: generalised onset seizures (tonic‐clonic only) Range of · adults and children with newly onset partial or generalised epilepsy

Carbamazepine showed no clear difference in time to treatment failure (any reason related to treatment)… compared with phenobarbitone (low certainty).

1 finding from 1 review

Carbamazepine vs phenobarbitone

Time to first seizure (post‐randomisation) All participants Range of · adults and children with newly onset partial or generalised epilepsy

Carbamazepine showed no clear difference in time to first seizure (post‐randomisation) All participants Range of compared with phenobarbitone (moderate certainty).

1 finding from 1 review

Carbamazepine vs phenobarbitone

Time to first seizure (post‐randomisation) Subgroup: focal onset seizures Range of · adults and children with newly onset partial or generalised epilepsy

Carbamazepine probably leads to higher time to first seizure (post‐randomisation) Subgroup: focal onset… compared with phenobarbitone (moderate certainty).

1 finding from 1 review

Carbamazepine vs phenobarbitone

Time to first seizure (post‐randomisation) ‐ stratified by epilepsy type: generalised onset seizures (tonic‐clonic only) Range of · adults and children with newly onset partial or generalised epilepsy

Carbamazepine showed no clear difference in time to first seizure (post‐randomisation) Subgroup: generalised… compared with phenobarbitone (low certainty).

1 finding from 1 review

Carbamazepine vs phenobarbitone

Time to achieve 12‐month remission (seizure‐free period) Subgroup: focal onset seizures Range of · adults and children with newly onset partial or generalised epilepsy

Carbamazepine showed no clear difference in time to achieve 12‐month remission (seizure‐free period) Subgroup:… compared with phenobarbitone (low certainty).

1 finding from 1 review

Carbamazepine vs phenobarbitone

Time to 12‐month remission ‐ stratified by epilepsy type ‐ Generalized onset seizures (tonic‐clonic only) Range of · adults and children with newly onset partial or generalised epilepsy

Carbamazepine showed no clear difference in time to achieve 12‐month remission (seizure‐free period) Subgroup:… compared with phenobarbitone (low certainty).

1 finding from 1 review

Oxcarbazepine vs phenytoin

Time to treatment failure (any reason related to treatment) All participants 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) All… compared with phenytoin (primary outcomes) (moderate certainty).

1 finding from 1 review

Oxcarbazepine vs phenytoin

Time to achieve 12‐month remission (seizure‐free period) Subgroup: focal onset seizures Range of · people with newly diagnosed epilepsy

Summary of findings: oxcarbazepine showed no clear difference in time to achieve 12‐month remission (seizure‐free period) Subgroup:… compared with phenytoin (secondary outcomes) (moderate certainty).

1 finding from 1 review

Oxcarbazepine vs phenytoin

Time to 12‐month remission ‐ stratified by epilepsy type ‐ generalised onset Range of · people with newly diagnosed epilepsy

Summary of findings: oxcarbazepine showed no clear difference in time to achieve 12‐month remission (seizure‐free period) Subgroup:… compared with phenytoin (secondary outcomes) (low certainty).

1 finding from 1 review

Oxcarbazepine vs phenytoin

Time to treatment failure (any reason related to treatment) Subgroup: focal 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 (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