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Epileptic Disord. 1999 Sep;1(3):159-65.

Efficacy of lamotrigine in idiopathic generalized epilepsy syndromes: a video-EEG-controlled, open study.

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  • 1Department of Pediatrics, University of Strasbourg, France.



This prospective, open, video-EEG-controlled study examined the efficacy of lamotrigine (LTG) as add-on and monotherapy in idiopathic generalized epilepsy (IGE).


47 patients received LTG either because of insufficient seizure control (n = 35) or serious side effects of prior antiepileptic drugs (AED). Long-term video-EEG recordings were performed before and after the introduction of LTG. The mean follow-up time was 25.5 months.


Of 12 patients with refractory childhood absence epilepsy, 9 became seizure free; in one child with absences with eyelid myoclonia, absence frequency was reduced > 50%; in 2 children with absences with a mild atonic component, seizure reduction was only transient. Of 12 patients with juvenile absence epilepsy, 10 became seizure-free and, in 2, a > 50% reduction was obtained. In 15 patients with juvenile myoclonic epilepsy, complete seizure control was achieved in 7 patients, in 6 patients myoclonia persisted. In one patient generalized tonic-clonic seizures also persisted and another patient developed a rash, LTG was therefore stopped. Of 5 patients with grand-mal on awakening, 3 became seizure-free, and a reduction of > 50% was obtained in one patient; LTG was stopped in one patient because of poor compliance. Three patients with pure photosensitive epilepsy became seizure-free. At the end of the study, 11 patients were seizure-free on LTG monotherapy, and in most other patients concomitant AED dosage could be substantially reduced.


Lamotrigine was effective and well tolerated in patients with various IGE syndromes, although differences were observed between individual syndromes and seizure types.

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