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Published on: July 8, 2025
Effects of lamotrigine on cognition and behavior compared to carbamazepine as monotherapy for children with partial
So-Hee Eun1, Baik-Lin Eun, Joon Soo Lee
1Department of Pediatrics, Korea University College of Medicine, Seoul, Korea.
Insights
Lamotrigine (LTG) and carbamazepine (CBZ) showed similar efficacy for pediatric epilepsy. Carbamazepine demonstrated greater benefits in improving externalizing behaviors in children.
Area of Science:
- Pediatric Neurology
- Clinical Pharmacology
- Epileptology
Background:
- Pediatric epilepsy requires effective monotherapy with careful consideration of cognitive and behavioral side effects.
- Lamotrigine (LTG) and carbamazepine (CBZ) are commonly used antiepileptic drugs (AEDs) for partial-onset seizures in children.
Purpose of the Study:
- To compare the cognitive and behavioral effects of lamotrigine (LTG) versus carbamazepine (CBZ) as monotherapy in children with newly diagnosed epilepsy.
- To assess and compare the antiepileptic efficacy and tolerability of LTG and CBZ.
Main Methods:
- A multicenter, randomized, open-label, parallel-group trial involving children with partial-onset seizures.
- Participants received either LTG or CBZ monotherapy, titrated over 8 weeks, followed by a 24-week maintenance phase.
- Cognitive and behavioral changes were assessed using standardized measures; antiepileptic efficacy and tolerability were also evaluated.
Main Results:
- Seizure-free rates were comparable between LTG and CBZ groups (53.5% vs. 56.1%, p=0.81).
- No significant differences in intelligence were observed between the groups post-treatment.
- Parental reports (Conner scale) indicated improvement in externalizing behaviors with CBZ compared to LTG (p<0.05).
Conclusions:
- Lamotrigine and carbamazepine exhibit similar efficacy and cognitive profiles for treating pediatric partial epilepsy.
- Carbamazepine may offer additional benefits by improving externalizing behavioral problems in this population.
Abstract:
To compare the cognitive and behavioral effects of lamotrigine (LTG) to carbamazepine (CBZ) as monotherapy for pediatric epilepsy. A multicenter, randomized, open-label, parallel-group clinical trial was conducted in children with partial-onset seizures. LTG or CBZ was prescribed as monotherapy for previously untreated children and titrated over 8 weeks, followed by maintenance for 24 weeks. Outcome measures were change in cognition and behavior in a combined analysis of standardized measures from screening to the end of the maintenance phase, as well as antiepileptic efficacy and tolerability. A total of 67 children completed the study, including 32 of 43 (74.4%) treated with LTG and 35 of 41 (85.4%) treated with CBZ. Seizure-free outcomes did not differ between the intent-to-treat populations (53.5% LTG, 56.1% CBZ; p=0.81). There were no statistically significant differences in the intelligence of the two groups after treatment. Externalizing behavior problems improved in the CBZ group (p<0.05). However, there were no significant differences between the two groups in terms of externalizing behavior. The parents' report on the Conner scale showed an improvement in the CBZ group compared to the LTG group (p<0.05). LTG and CBZ showed similar efficacy and cognitive effects in treating childhood partial epilepsy. However, CBZ showed more benefits in improving externalizing behaviors.
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