Neuropediatrics
DOI: 10.1055/a-2508-5990
Original Article

Efficacy and Tolerability of Lacosamide in Pediatric and Young Adult Epilepsy Patients with Severe Motor and Intellectual Disabilities

1   Department of Pediatrics, Hiroshima Prefectural Hospital, Minami-ku, Hiroshima, Japan
,
Shin Suzuki
1   Department of Pediatrics, Hiroshima Prefectural Hospital, Minami-ku, Hiroshima, Japan
,
Ryota Komori
1   Department of Pediatrics, Hiroshima Prefectural Hospital, Minami-ku, Hiroshima, Japan
,
1   Department of Pediatrics, Hiroshima Prefectural Hospital, Minami-ku, Hiroshima, Japan
,
Satoshi Goda
1   Department of Pediatrics, Hiroshima Prefectural Hospital, Minami-ku, Hiroshima, Japan
,
Ayana Tsuboi
1   Department of Pediatrics, Hiroshima Prefectural Hospital, Minami-ku, Hiroshima, Japan
,
Kazuhiko Jinno
1   Department of Pediatrics, Hiroshima Prefectural Hospital, Minami-ku, Hiroshima, Japan
› Author Affiliations
Funding None.

Abstract

Objective Epilepsy is common among patients with severe motor and intellectual disabilities (SMID) patients, often taking a prolonged and intractable course. Lacosamide (LCM) is widely used to treat epilepsy in both adults and children. We assess the efficacy and tolerability of LCM among pediatric and young adult epilepsy patients with SMID who suffer from intractable seizures.

Methods This retrospective analysis reviewed the medical records of SMID patients undergoing LCM treatment for more than a year. The study included 24 patients (14 males) aged 3 to 29 years. Epilepsy was classified as focal in 17 patients, generalized in 4 patients, and combined generalized and focal in 3 patients.

Results The retention rates were 70.8%, 65%, and 52.9% at 1, 2, and 3 years after LCM initiation, respectively. The 50% responder rate (achieving >50% seizure reduction) for LCM treatment was 50%, with two patients experiencing complete seizure control (absence of seizures for 6 months before the follow-up visit). The 50% responders included a higher proportion of patients with focal epilepsy (58.8%) compared to those with generalized epilepsy (25.0%). Treatment-emergent adverse events (TEAEs) included somnolence in five patients and nausea in two patients. TEAEs, particularly nausea, developed within 1 month after treatment initiation in two patients, leading to LCM discontinuation.

Conclusion LCM demonstrated good efficacy for intractable epilepsy in pediatric and young adult SMID patients. It was generally well-tolerated, resulting in a favorable retention rate. LCM emerged as a useful antiseizure medication for epilepsy treatment in pediatric and young adult SMID patients.



Publication History

Received: 09 May 2024

Accepted: 26 December 2024

Accepted Manuscript online:
30 December 2024

Article published online:
14 January 2025

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