Cochrane · systematic review · CD003277

Anti‐seizure medications for Lennox‐Gastaut syndrome

Brigo, F, Jones, K, Eltze, C, et al. · Cochrane Database of Systematic Reviews · 2021 · Cochrane Library

EpilepsyAMSTAR 2: not assessed
SoF tableOnly the outcomes this review put in its Summary of Findings table are listed (the Cochrane Handbook caps them at about seven per comparison). Its other analyses are not shown here.
Questions
33
current version
GRADE rated
15
No studies
18
Included studies
NR
No studies 18 · 54.5%Ungraded 0 · 0%Very low 3 · 9.1%Low 8 · 24.2%Moderate 0 · 0%High 4 · 12.1%

Ungraded means an effect was reported without a GRADE rating; it is not a gap. No studies means the review found nothing to answer the question. The six categories are a display order, not a score.

Questions and results

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

Population: Lennox‐Gastaut syndrome, any age
4 questions
OutcomeEffectEvidenceStatus / GRADE
Number of participants free from all seizures
Cannabidiol (10 mg/kg and 20 mg/kg) plus ASMs vs placebo plus ASMs
no estimate extractedNRNo studies
Number of participants with ≥ 75% reduction in all seizures
Cannabidiol (10 mg/kg and 20 mg/kg) plus ASMs vs placebo plus ASMs
no estimate extractedNRNo studies
Number of participants with ≥ 50% reduction in all seizures
Cannabidiol (10 mg/kg and 20 mg/kg) plus ASMs vs placebo plus ASMs
no estimate extractedNRNo studies
Number of participants with adverse events leading to study discontinuation
Cannabidiol (10 mg/kg and 20 mg/kg) plus ASMs vs placebo plus ASMs
RR 6.62 [1.56, 28.15]2 studies · 396 participantsHigh

Cinromide plus ASMs compared to placebo plus ASMs

Population: Lennox‐Gastaut syndrome, any age1
4 questions
OutcomeEffectEvidenceStatus / GRADE
Number of participants free from all seizures
Cinromide plus ASMs vs placebo plus ASMs
no estimate extracted1 study · 56 participantsVery low
Downgraded: risk of bias, imprecision
Number of participants with ≥ 75% reduction in mean weekly seizures
Cinromide plus ASMs vs placebo plus ASMs
Peto OR 9.35 [0.45, 194.96]1 study · 56 participantsVery low
Downgraded: risk of bias, imprecision
Number of participants with ≥ 50% reduction in mean weekly seizures
Cinromide plus ASMs vs placebo plus ASMs
RR 1.15 [0.47, 2.86]1 study · 56 participantsVery low
Downgraded: risk of bias, imprecision
Number of participants with adverse events leading to study discontinuation
Cinromide plus ASMs vs placebo plus ASMs
no estimate extractedNRNo studies

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

Population: Lennox‐Gastaut syndrome, any age
4 questions
OutcomeEffectEvidenceStatus / GRADE
Number of participants free from all seizures
Clobazam (low, medium and high doses) plus ASMs vs placebo plus ASMs
no estimate extractedNRNo studies
Number of participants with ≥ 75% reduction in all seizures
Clobazam (low, medium and high doses) plus ASMs vs placebo plus ASMs
no estimate extractedNRNo studies
Number of participants with ≥ 50% reduction in all seizures
Clobazam (low, medium and high doses) plus ASMs vs placebo plus ASMs
no estimate extractedNRNo studies
Number of participants with adverse events leading to study discontinuation
Clobazam (low, medium and high doses) plus ASMs vs placebo plus ASMs
RR 4.12 [1.01, 16.87]1 study · 238 participantsHigh

Felbamate plus ASMs compared to placebo plus ASMs

Population: Lennox‐Gastaut syndrome, any age
5 questions
OutcomeEffectEvidenceStatus / GRADE
Number of participants free from all seizures (recorded by closed‐circuit television and electroencephalography) ‐
Felbamate plus ASMs vs placebo plus ASMs
RR 2.92 [0.32, 26.77]1 study · 73 participantsLow
Downgraded: imprecision
Number of participants free from all seizures
Felbamate plus ASMs vs placebo plus ASMs
no estimate extracted1 study · 73 participantsLow
Downgraded: imprecision
Number of participants with ≥ 75% reduction in all seizures
Felbamate plus ASMs vs placebo plus ASMs
no estimate extractedNRNo studies
Number of participants with ≥ 50% reduction in all seizures
Felbamate plus ASMs vs placebo plus ASMs
no estimate extractedNRNo studies
Number of participants with adverse events leading to study discontinuation
Felbamate plus ASMs vs placebo plus ASMs
RR 0.97 [0.06, 14.97]1 study · 73 participantsLow
Downgraded: imprecision

Lamotrigine plus ASMs compared to placebo plus ASMs

Population: Lennox‐Gastaut syndrome, any age
4 questions
OutcomeEffectEvidenceStatus / GRADE
Number of participants free from all seizures
Lamotrigine plus ASMs vs placebo plus ASMs
no estimate extractedNRNo studies
Number of participants with ≥ 75% reduction in all seizures
Lamotrigine plus ASMs vs placebo plus ASMs
no estimate extractedNRNo studies
Number of participants with ≥ 50% median reduction in all seizures
Lamotrigine plus ASMs vs placebo plus ASMs
RR 2.12 [1.19, 3.76]1 study · 167 participantsHigh
Number of participants with adverse events leading to study discontinuation
Lamotrigine plus ASMs vs placebo plus ASMs
RR 0.49 [0.13, 1.82]1 study · 169 participantsLow
Downgraded: imprecision

Rufinamide plus ASMs compared to placebo plus ASMs

Population: Lennox‐Gastaut syndrome, any age
4 questions
OutcomeEffectEvidenceStatus / GRADE
Number of participants free from all seizures
Rufinamide plus ASMs vs placebo plus ASMs
no estimate extractedNRNo studies
Number of participants with ≥ 75% reduction in all seizures
Rufinamide plus ASMs vs placebo plus ASMs
no estimate extractedNRNo studies
Number of participants with ≥ 50% reduction in all seizures
Rufinamide plus ASMs vs placebo plus ASMs
RR 2.84 [1.31, 6.18]1 study · 138 participantsHigh
Number of participants with adverse events leading to study discontinuation
Rufinamide plus ASMs vs placebo plus ASMs
RR 4.14 [0.49, 34.86]1 study · 59 participantsLow
Downgraded: imprecision

Rufinamide plus ASMs compared to other ASM plus ASMs

Population: Lennox‐Gastaut syndrome, any age
4 questions
OutcomeEffectEvidenceStatus / GRADE
Number of participants free from all seizures
Rufinamide plus ASMs vs other ASM plus ASMs
no estimate extractedNRNo studies
Number of participants with ≥ 75% reduction in all seizures
Rufinamide plus ASMs vs other ASM plus ASMs
no estimate extractedNRNo studies
Number of participants with ≥ 50% reduction in all seizures
Rufinamide plus ASMs vs other ASM plus ASMs
no estimate extractedNRNo studies
Number of participants with treatment‐emergent adverse events leading to study discontinuation
Rufinamide plus ASMs vs other ASM plus ASMs
RR 0.96 [0.1, 9.57]1 study · 37 participantsLow
Downgraded: imprecision

Topiramate plus ASMs compared to placebo plus ASMs

Population: Lennox‐Gastaut syndrome, any age
4 questions
OutcomeEffectEvidenceStatus / GRADE
Number of participants free from all seizures
Topiramate plus ASMs vs placebo plus ASMs
no estimate extractedNRNo studies
Number of participants with ≥ 75% reduction in all seizures
Topiramate plus ASMs vs placebo plus ASMs
Peto OR 8.22 [0.6, 112.62]1 study · 98 participantsLow
Downgraded: imprecision
Number of participants with ≥ 50% reduction in all seizures
Topiramate plus ASMs vs placebo plus ASMs
no estimate extractedNRNo studies
Number of participants with adverse events leading to study discontinuation
Topiramate plus ASMs vs placebo plus ASMs
no estimate extracted1 study · 98 participantsLow
Downgraded: imprecision