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Ther Clin Risk Manag. 2018 Aug 02;14:1369-1377. doi: 10.2147/TCRM.S171793. eCollection 2018.

Adjunctive lacosamide treatment for adult focal-onset epilepsy: focus on comorbid intellectual/developmental disorders and differing responses.

Therapeutics and clinical risk management

Ebru Apaydın Doğan, Umuttan Doğan, Emine Genç, Çağla Erdoğan, Bülent Oğuz Genç

Affiliations

  1. Department of Neurology, School of Medicine, Akdeniz University, Antalya, Turkey, [email protected].
  2. Department of Cardiology, School of Medicine, Akdeniz University, Antalya, Turkey.
  3. Department of Neurology, School of Medicine, Necmettin Erbakan University, Konya, Turkey.

PMID: 30122936 PMCID: PMC6080872 DOI: 10.2147/TCRM.S171793

Abstract

BACKGROUND: Data regarding lacosamide treatment as an adjunctive therapy in patients representative of a focal-onset epilepsy population including those with and without intellectual/developmental disorders (IDDs) are limited.

PURPOSE: To evaluate the retention rates of lacosamide in focal-onset epilepsy patients with and without IDD.

PATIENTS AND METHODS: We retrospectively reviewed all consecutive electronic and paper medical records of patients diagnosed with focal-onset epilepsy who were treated with lacosamide in two tertiary epilepsy centers.

RESULTS: One hundred and thirty-six patients who met the inclusion criteria were studied. Number of patients with IDD was 46 (33.8%). Median lacosamide dose was 300 mg/day. A total of 39 patients (28.7%) experienced side effects, and 22 of them (16.2%) discontinued lacosamide. The 1-, 2-, and 3-year retention rates of lacosamide in patients with IDD were 68%, 62%, and 53%, respectively. Kaplan-Meier survival analysis showed that the retention rates were significantly lower in patients with IDD when compared to patients without IDD (

CONCLUSION: When compared to patients without IDD, retention rates of lacosamide adjunctive therapy were lower in patients with IDD. However, these rates were higher than the rates suggested with previously registered AEDs including lamotrigine, levetiracetam, and topiramate. Therefore, irrespective of having comorbid IDD, we might suggest that lacosamide is a well-retained drug with a high efficacy profile in patients with focal-onset epilepsy.

Keywords: focal-onset epilepsy; intellectual/developmental disorders; lacosamide

Conflict of interest statement

Disclosure The authors report no conflicts of interest in this work.

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