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Levetiracetam in children with refractory epilepsy: a multicenter open label study in Germany
Joachim Opp1, Ingrid Tuxhorn, Theodor May
1Evangelisches Krankenhaus, Department of Neuropediatrics, Oberhausen, Germany.
Insights
Levetiracetam (LEV) is a well-tolerated add-on treatment for drug-resistant epilepsy in children. While effective for some, neurologically impaired children may experience more side effects and a poorer response.
Area of Science:
- Pediatric Neurology
- Clinical Pharmacology
- Epileptology
Background:
- Epilepsy affects a significant pediatric population, with many cases being drug-resistant.
- Refractory epilepsy in children necessitates exploring novel and effective therapeutic options.
- Levetiracetam (LEV) has emerged as a potential treatment for various seizure types.
Purpose of the Study:
- To assess the efficacy and tolerability of Levetiracetam (LEV) as an add-on therapy in a large cohort of pediatric patients with drug-resistant epilepsy.
- To evaluate the real-world effectiveness of LEV in a multicenter, prospective, observational setting.
- To identify potential predictors of response and adverse events in children treated with LEV.
Main Methods:
- A prospective, multicenter, observational study involving 285 pediatric patients (mean age 9.9 years) with refractory generalized and focal epilepsy.
- Patients received Levetiracetam (LEV) as an open-label, add-on treatment.
- Efficacy was analyzed in 209 patients over at least 12 weeks, comparing seizure frequency to a 2-week baseline; tolerability was monitored throughout.
Main Results:
- Levetiracetam (LEV) was generally well-tolerated, with mild to moderate side effects in 44.9% of patients, most commonly somnolence and behavioral changes.
- No serious persistent adverse events were reported; reversible colitis and an apnea syndrome were noted in specific cases.
- Efficacy analysis showed 6.2% of patients became seizure-free and 18.7% had >50% seizure reduction; 65.1% showed no response, and 17.8% experienced a decrease in treatment effect.
Conclusions:
- Levetiracetam (LEV) is a well-tolerated antiepileptic drug that can improve seizure control in children with resistant epilepsy.
- Neurologically handicapped children are at higher risk for neurocognitive side effects and may have a less favorable treatment response to LEV.
- LEV represents a valuable therapeutic option for pediatric drug-resistant epilepsy, with careful monitoring recommended for vulnerable subgroups.
Purpose:
To evaluate the efficacy and tolerability of Levetiracetam (LEV) in a large pediatric cohort with drug-resistant epilepsy from a prospective multicenter observational study.
Methods:
We report the results of a multicenter observational survey of a cohort of 285 pediatric patients (mean: 9.9 years, range: 0; 6-17; 11) with refractory generalized and focal epilepsy who received Levetiracetam as an add-on open label treatment trial. The average duration of epilepsy was 6.0 years and the patients were treated with a mean of 7.0 antiepileptic drugs (AED) before LEV was introduced.
Results:
No serious persistent adverse events were reported. Reversible colitis and an apnoea syndrome in a child with phosphorylase-A-kinase-deficiency were noted. Mild to moderate side effects were reported in 128 patients (44.9%), consisting most frequently of somnolence (23.9%), general behavioral changes (15.4%), aggression (10.5%) and sleep disturbances (3.2%). In 209 patients, efficacy was analyzed over a treatment period of at least 12 weeks compared to a baseline of 2 weeks. Thirteen patients (6.2%) became seizure free, 39 (18.7%) responded with a seizure reduction of more than 50% following introduction of LEV. No response to LEV was reported in 65.1% (n=136). A decrease of initial treatment effect was seen in 37 patients (17.8%) while in 6.7% the seizure frequency doubled to the baseline (n=14). In seven patients (3.3%), the effect of LEV on seizure frequency could not be evaluated. A positive psychotropic effect was observed in 18 patients (8.6%). Mental retardation was associated with poor response and associated with more side effects and earlier discontinuation of LEV therapy.
Conclusion:
LEV is a well-tolerated new AED that may effectively improve seizure control as an add-on drug in resistant epilepsy in childhood with good tolerability. However, neurologically handicapped children appear at increased risk for reversible neurocognitive side effects and have a poorer treatment response.
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