Time to treatment failure (any reason related to treatment) All participants Range of · adults and children with newly‐onset focal onset or generalised tonic‐clonic seizures
Sodium valproate showed no clear difference in time to treatment failure (any reason related to treatment) All… compared with phenytoin monotherapy (moderate certainty).
1 finding from 1 review
Time to treatment failure (any reason related to treatment) Subgroup: focal onset seizures Range of · adults and children with newly‐onset focal onset or generalised tonic‐clonic seizures
Sodium valproate showed no clear difference in time to treatment failure (any reason related to treatment)… compared with phenytoin monotherapy (moderate certainty).
1 finding from 1 review
Time to treatment failure (any reason related to treatment) Subgroup: generalised 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 treatment failure (any reason related to treatment)… compared with phenytoin monotherapy (low certainty).
1 finding from 1 review
Time to first seizure (post‐randomisation) All participants Range of · adults and children with newly‐onset focal onset or generalised tonic‐clonic seizures
Sodium valproate showed no clear difference in time to first seizure (post‐randomisation) All participants Range of compared with phenytoin monotherapy (low certainty).
1 finding from 1 review
Time to first seizure (post‐randomisation) Subgroup: focal onset seizures Range of · adults and children with newly‐onset focal onset or generalised tonic‐clonic seizures
Sodium valproate showed no clear difference in time to first seizure (post‐randomisation) Subgroup: focal onset… compared with phenytoin monotherapy (low certainty).
1 finding from 1 review
Time to first seizure (post‐randomisation) ‐ stratified by epilepsy type: generalised 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 first seizure (post‐randomisation) Subgroup: generalised… compared with phenytoin monotherapy (low certainty).
1 finding from 1 review
Remission · 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) All… compared with phenytoin monotherapy (moderate certainty).
1 finding from 1 review
Time to achieve 12‐month remission (seizure‐free period) Subgroup: focal onset seizures 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
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
Intervention not reported
Sodium valproate · adults and children with generalised seizures*
1 finding from 1 review
Seizure freedom · absence seizures in children and adolescents
1 finding from 1 review
80% or greater reduction in seizure frequency ‐ not reported · absence seizures in children and adolescents
It is very uncertain whether ethosuximide changes 80% or greater reduction in seizure frequency compared with valproate (very low certainty).
1 finding from 1 review
50% or greater reduction in seizure frequency · absence seizures in children and adolescents
1 finding from 1 review
Normalisation of the EEG ‐ not reported · absence seizures in children and adolescents
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Seizure freedom · absence seizures in children and adolescents
1 finding from 1 review
80% or greater reduction in seizure frequency ‐ not reported · absence seizures in children and adolescents
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
50% or greater reduction in seizure frequency · absence seizures in children and adolescents
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
Normalisation of the EEG ‐ not reported · absence seizures in children and adolescents
It is very uncertain whether lamotrigine changes normalisation of the EEG compared with valproate (very low certainty).
1 finding from 1 review
80% or greater reduction in seizure frequency ‐ not reported · absence seizures in children and adolescents
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found
50% or greater reduction in seizure frequency · absence seizures in children and adolescents
The review found no eligible studies for this question.
1 finding from 1 review
no estimate extracted
Studies not reported
No studies found