PMID- 35777333 OWN - NLM STAT- MEDLINE DCOM- 20220803 LR - 20220803 IS - 1532-2688 (Electronic) IS - 1059-1311 (Linking) VI - 100 DP - 2022 Aug TI - Perampanel for the treatment of patients with myoclonic seizures in clinical practice: Evidence from the PERMIT study. PG - 56-66 LID - S1059-1311(22)00142-X [pii] LID - 10.1016/j.seizure.2022.06.008 [doi] AB - PURPOSE: To investigate the effectiveness, safety and tolerability of perampanel (PER) in treating myoclonic seizures in clinical practice, using data from the PERaMpanel pooled analysIs of effecTiveness and tolerability (PERMIT) study. METHODS: PERMIT was a pooled analysis of 44 real-world studies from 17 countries, in which patients with focal and generalised epilepsy were treated with PER. This post-hoc analysis included patients with myoclonic seizures at baseline. Retention and effectiveness were assessed after 3, 6, and 12 months; effectiveness was additionally assessed at the last visit (last observation carried forward). Effectiveness assessments included responder rate (>/=50% seizure frequency reduction from baseline) and seizure freedom rate (no seizures since at least the prior visit). Safety and tolerability were assessed by evaluating adverse events (AEs) and discontinuation due to AEs. RESULTS: 156 patients had myoclonic seizures (59.0% female; mean age, 32.1 years; idiopathic generalised epilepsy, 89.1%; Juvenile Myoclonic Epilepsy, 63.1%; monthly median myoclonic seizure frequency [interquartile range], 1.7 [1.0-10.0]; mean [standard deviation] prior antiseizure medications, 2.9 [2.6]). Retention was assessed for 133 patients (mean time, 12.1 months), effectiveness for 142, and safety/tolerability for 156. Responder and seizure freedom rates were, respectively, 89.5% and 68.8% at 12 months, and 85.9% and 63.4% at the last visit. Incidence of AEs was 46.8%, the most frequent being dizziness/vertigo (19.2%), irritability (18.6%) and somnolence (9.6%). AEs led to discontinuation of 14.0% of patients over 12 months. CONCLUSION: PER was associated with reduction in myoclonic seizure frequency in patients with myoclonic seizures treated in everyday clinical practice. CI - Copyright (c) 2022. Published by Elsevier Ltd. FAU - D'Souza, Wendyl AU - D'Souza W AD - Department of Medicine, St Vincent's Hospital Melbourne, The University of Melbourne, PO Box 2900, Fitzroy, Victoria 3065, Australia.. Electronic address: wendyl@unimelb.edu.au. FAU - Alsaadi, Taoufik AU - Alsaadi T AD - American Center for Psychiatry and Neurology, United Arab Emirates; Khalifa University, Abu Dhabi, United Arab Emirates. FAU - Montoya, Javier AU - Montoya J AD - Epilepsy Unit, Hospital Clinic Barcelona, Barcelona, Spain. FAU - Carreno, Mar AU - Carreno M AD - Hospital Clinic Barcelona, Barcelona, Spain. FAU - Di Bonaventura, Carlo AU - Di Bonaventura C AD - Epilepsy Unit, Department of Human Neurosciences, "Sapienza" University of Rome, Rome, Italy. FAU - Mohanraj, Rajiv AU - Mohanraj R AD - Manchester Centre for Clinical Neurosciences, Salford Royal Hospital, UK. FAU - Yamamoto, Takamichi AU - Yamamoto T AD - Comprehensive Epilepsy Center, Seirei Hamamatsu General Hospital, Shizuoka, Japan. FAU - McMurray, Rob AU - McMurray R AD - Eisai Europe Limited, Hatfield, Hertfordshire, UK. FAU - Shastri, Oliver AU - Shastri O AD - Eisai Europe Limited, Hatfield, Hertfordshire, UK. FAU - Villanueva, Vicente AU - Villanueva V AD - Refractory Epilepsy Unit, Hospital Universitario y Politecnico La Fe, Valencia, Spain. CN - PERMIT study group LA - eng PT - Journal Article DEP - 20220615 PL - England TA - Seizure JT - Seizure JID - 9306979 RN - 0 (Anticonvulsants) RN - 0 (Nitriles) RN - 0 (Pyridones) RN - H821664NPK (perampanel) SB - IM MH - Adult MH - *Anticonvulsants/adverse effects MH - Drug Therapy, Combination MH - Female MH - Humans MH - Male MH - *Myoclonic Epilepsy, Juvenile/drug therapy MH - Nitriles MH - Pyridones/adverse effects MH - Seizures/chemically induced/drug therapy MH - Treatment Outcome OTO - NOTNLM OT - Antiseizure medication OT - Clinical practice OT - Generalised epilepsy OT - Myoclonic seizures OT - Perampanel OT - Real world EDAT- 2022/07/02 06:00 MHDA- 2022/08/04 06:00 CRDT- 2022/07/01 18:32 PHST- 2022/04/07 00:00 [received] PHST- 2022/06/10 00:00 [revised] PHST- 2022/06/14 00:00 [accepted] PHST- 2022/07/02 06:00 [pubmed] PHST- 2022/08/04 06:00 [medline] PHST- 2022/07/01 18:32 [entrez] AID - S1059-1311(22)00142-X [pii] AID - 10.1016/j.seizure.2022.06.008 [doi] PST - ppublish SO - Seizure. 2022 Aug;100:56-66. doi: 10.1016/j.seizure.2022.06.008. Epub 2022 Jun 15.