16 ± 0.52 mg/kg/day. No relationship between the response to lacosamide therapy and epileptic syndrome was observed. Two patients with Lennox-Gastaut syndrome reported a focal seizure reduction of >50%. One patient with continuous partial epilepsy (Rasmussen’s syndrome) appeared to achieve control of check details seizures with lacosamide therapy. Safety and Tolerability (Unfavorable and Favorable Secondary

IWR1 Effects) Adverse effects were reported by patients and their families in 39 cases (30%) following treatment with lacosamide. In 16 of these cases, the effects were initial and transient; in four cases, the effects were tolerated without requiring dose modification; in six cases, the effects disappeared or were tolerated by lowering the lacosamide dose; and in 13 cases, the effects required cessation of lacosamide. The mean dose of Screening Library chemical structure lacosamide in the 39 patients who experienced an adverse effect was 7.11 ± 3.10 mg/kg/day, compared

with 6.56 ± 2.21 mg/kg/day in the 91 patients who did not experience any adverse effects; no statistically significant difference was seen between these two doses (p = 0.304; Mann-Whitney test). No cardiovascular effects were observed in our patients. There were also no alterations in conventional laboratory tests (complete blood count, transaminasemia, amylasemia, blood glucose, creatininemia, cholesterolemia, and triglyceridemia), and no significant changes in EEG records. The most prevalent adverse effects were nausea and vomiting (13 cases), instability (ten cases), dizziness (five cases), nystagmus (three cases), somnolence (three cases), weakness (two cases), and adynamia (two cases). Anorexia, disorientation,

asthenia, headache, insomnia, irritability, attention deficit, agitation, drop in academic achievement, psychotic reaction, vision impairment, neck stiffness, tonic upgaze, sialorrhea, and focal Afatinib price epileptic status were much less common effects (one case each). In ten patients, striking symptoms were observed, including instability, difficulty walking, an inability to relate subjective elements, and blurred vision or dizziness. In five cases, symptom intensity remained unchanged, despite an immediate dose decrease, which eventually led to discontinuation of treatment. In all cases, symptoms peaked with the Cmax occurring between 2 and 5 hours after drug administration, with no direct relationship to the dose, speed of dose adjustment, or use of co-AEDs. Adverse effects resulting in discontinuation of lacosamide are detailed in table XII. Table XII Reasons for discontinuation of lacosamide (N = 13) A significant improvement in behavior and the speed of response to stimuli was reported by the parents of 17 patients (13.0%) in groups A and B, which may have been related to the use of lacosamide. Discussion The results of this open-label study suggest that lacosamide therapy may be an effective treatment option in children with refractory epilepsy.