Journal
EPILEPSY RESEARCH
Volume 166, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.eplepsyres.2020.106408
Keywords
Newly diagnosed focal epilepsy; Antiepileptic drugs; Oxcarbazepine; Lamotrigine; Levetiracetam; Monotherapy
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Objective: We performed observational cohort study to compare the long-term efficacy, tolerability, and safety of oxcarbazepine (OXC), lamotrigine (LTG), and levetiracetam (LEV) monotherapy for newly diagnosed focal epilepsy patients. Methods: Three hundred and eighty eight newly diagnosed focal epilepsy patients aged 1-70 years were enrolled in this study between June 2009 and March 2016. Among the patients, 191 were treated with OXC, 98 were treated with LTG, and 99 were treated with LEV monotherapy. The study was performed in a real-world setting and the primary outcomes were the one-year and three-year seizure-free rates. The secondary outcomes were the one-year and three-year withdrawal rates, the time to treatment withdrawal, the time to the first seizure, and the time to achieve one-year remission. Results: The three-year seizure-free rates with LTG (39.8 %) and LEV (41.4 %) were significantly better than that with OXC (26.2 %) (both P 0.05). However, no significant difference was observed among the three drugs for the one-year seizure-free rate. The three-year withdrawal rate was 50.8 %, 46.9 %, and 43.4 % for OXC, LTG, and LEV, respectively (all P 0.05). The one-year withdrawal rate for OXC (31.7 %) was higher than those for LTG (30.6 %) and LEV (26.3 %) (all P > 0.05). LEV [Relative Risk (RR) = 0.69, 95 % CI: 0.49 similar to 0.99] and LTG (RR = 0.63, 95 % CI: 0.44 similar to 0.9) were significantly better than OXC in preventing first seizure. LEV appears to be the superior option with regard to the time to achieve one-year remission. Significance: The results of the study showed that LEV and LTG are significantly more effective than OXC for the treatment of newly diagnosed focal epilepsy. LEV has milder adverse events than OXC and LTG in clinical practice.
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