Epilepsy with myoclonic atonic seizures (EMAtS) is a rare childhood onset developmental and epileptic encephalopathy which is frequently refractory to medical therapy. The optimal antiseizure medication remains unknown. This study reports the efficacy of felbamate in children with EMAtS. Six large pediatric epilepsy centers performed a retrospective chart review on patients diagnosed with EMAtS at their institutions and collected data on felbamate usage and efficacy. Responders were classified as patients who had a 50% or greater reduction in seizures with a given therapy. Out of 259 patients, 37 (14%) were treated with felbamate. The efficacy of felbamate was 62%, which was greater than that of either levetiracetam or valproic acid (15%, p < 0.001% and 32%, p = 0.001 respectively) and similar to that of the ketogenic diet (69%, p = 0.8). Felbamate appears to be an effective treatment for EMAtS and should be strongly considered in the treatment course of this disease.
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http://dx.doi.org/10.1016/j.eplepsyres.2024.107314 | DOI Listing |
Epilepsy Behav
January 2025
Department of Neurosurgery, Mass General Brigham, Harvard Medical School, Boston, MA 02115, USA.
Lennox-Gastaut syndrome (LGS) is a severe, childhood-onset developmental and epileptic encephalopathy characterized by multiple drug-resistant seizure types, specific electroencephalogram (EEG) patterns, and significant cognitive and behavioral impairments. To date, eight anti-seizure medications (ASMs) have been specifically approved by the U.S.
View Article and Find Full Text PDFNeurol Sci
December 2024
The Division of Neurology at Nemours, Mayo Clinic, Jacksonville, FL, 32207, USA.
Introduction: The effect of felbamate (FBM) on genetic generalized epilepsy (GGE) remains largely unknown. The utilization of FBM has been limited due to its potential risk of aplastic anemia and hepatic failure. This study aimed to comprehensively evaluate the efficacy and safety of FBM in the treatment of drug-resistant GGE.
View Article and Find Full Text PDFExpert Rev Neurother
January 2025
Department of Paediatrics, Cambridge University Hospitals, Cambridge, UK.
Introduction: The seizures in Lennox-Gastaut syndrome are typically resistant to treatment. Seven antiseizure medications (ASMs) in the US (six in the UK/EU) are licensed for the treatment of seizures in LGS: lamotrigine, topiramate, rufinamide, clobazam, felbamate (not licensed in the UK/EU), cannabidiol and fenfluramine. Other options include neurostimulation, corpus callosotomy and dietary therapies, principally the ketogenic diet and its variants.
View Article and Find Full Text PDFEpilepsy Res
March 2024
University of Texas, Southwestern, 1935 Medical District Dr, Dallas, TX 75235, USA.
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