Please note that Epilepsy Research UK does not endorse/promote individual epilepsy treatments or pharmaceutical companies.Long-term use (up to two and a half years) of the antiepileptic drug (AED) Fycompa (perampanel), in addition to other AEDs, gives sustained seizure control in poorly-controlled idiopathic generalised epilepsy with primary generalised tonic clonic seizures. This is according to data presented at the 12thEuropean Congress on Epileptology, was held in Prague in September 2016.Scientists had previously tested the safety and efficiency of the drug in a phase three clinical trial called study 332. Here they presented the results of an extension to this study, in which all of the participants received Fycompa, regardless of what they had received in the original ‘core’ study. Unlike the core study, the extension was open label, meaning that both the subjects and the clinicians knew what was being administered.For the extension study, researchers recruited 138 participants and gave them a daily dose of Fycompa for up to 136 weeks. This followed a six-week ‘conversion period’, in which people who had received a placebo in the core trial were switched to Fycompa.By the end of the conversion period, participants had achieved a similar average reduction in seizure frequency whether they had originally received Fycompa or a placebo (a 100% and a 93.1% reduction respectively). Seizure control that was achieved during the core study was maintained throughout the course of the extension.A total of 120 patients (87%) experienced adverse side effects associated with the treatment, including dizziness, upper respiratory tract infection, irritability, headache, sleepiness and common cold-like symptoms.The results were announced in a press release by the drug’s manufacturer Eisai.Fycompa is an orally available adjunctive drug for the treatment of partial-onset seizures, with or without secondarily generalized seizures, and primary generalized tonic clonic seizures, in people with epilepsy aged 12 years and above.Author: Dr Özge ÖzkayaClick here for more articles about anti-epileptic drugs and pregnancy risks.