Abstract
This is a case series of 25 patients with drug-resistant epilepsy and psychiatric comorbidities who started on brivaracetam (BRV) at St George's University Hospitals and Frimley Health in London. Median BRV dose was 150 mg for a median follow-up period of 8 months. Twenty had focal epilepsy, four had generalized epilepsies, and one had unclassified epilepsy; 76% had mood disorders (either depression or bipolar disorder), 12% intellectual disabilities with autism spectrum disorder and challenging behavior, and 12% psychoses. Forty percent of patients presented at least 50% seizure reduction, but none of them became seizure-free. A total of 44% of patients discontinued BRV, 20% because of adverse events, 20% because of inefficacy, and 4% because of both. Depression was reported by 8%, aggressive behavior by 8%, while 4% reported both. A total of 91.6% had received levetiracetam (LEV) before, in whom LEV was discontinued because of psychiatric adverse events (PAEs) in half. Seventy-seven percent of patients who developed PAEs with LEV did not do so on BRV suggesting that BRV is better tolerated than LEV in complex patients with psychiatric comorbidities and that the synaptic vesicle glycoprotein 2A (SV2A) protein modulation is unlikely to be implicated in LEV-related PAEs.
Accepted Version
Published Version
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