Perampanel is a non-competitive antagonist of the AMPA ( 2-amino-3-(5-méthyl-3-hydroxy-1,2-oxazol-4-yl)) propanoïc acid receptors which was approved by the European Medicines Agency as adjunctive treatment for partial-onset seizures in patients 12 years and older, in 2012. The aim of this study is to evaluate effectiveness and safety of perampanel as add-on treatment in patients with refractory epilepsy. The investigators retrospectively collected and analyzed the data of patients with refractory epilepsy who had been treated with perampanel between May of 2014 and April of 2015. In total, one hundred and ten patients were included (mean age 41 \[SD = 15.2\]). The mean duration of epilepsy was 25 years (SD = 14.4). The mean perampanel dose was 5.7 mg/d (SD = 2.3). The retention rate was 77% at 6 months and 61% at 12 months. After 6 months, the responder rate was 35.5%. Eight patients (7.3%) became seizure free. Adverse effects were reported in 60 patients (54.5%). Most common side effects were behaviour disturbance (22.7%), dizziness (15.5%), asthenia (11.8), somnolence (10%) and ataxia (9.1).
Study Type
OBSERVATIONAL
Enrollment
110
Hôpital neurologique
Lyon, France
Retention rate
Proportion of patient still treated with Perampanel 6 months after its initiation
Time frame: 6 months
Retention rate
Proportion of patients still treated with Perampanel 12 months after its initiation
Time frame: 12 months
Seizure freedom
Proportion of seizure-free patients during at least 6 months
Time frame: 6 months
Responder rates
Responder rates is defined as a reduction in seizure frequency of 50% or more compared with the three months before the initiation of perampanel.
Time frame: 6 months
Responder rates
Responder rates is defined as a reduction in seizure frequency of 50% or more compared with the three months before the initiation of perampanel.
Time frame: 12 months
Total withdrawal rate
Discontinuation rates at 6 months due to inefficiency or adverse effects
Time frame: 6 months
Total withdrawal rate
Discontinuation rates at 12 months due to inefficiency or adverse effects
Time frame: 12 months
Observed adverse effects during the observation period
Time frame: 12 months
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