{"title":"A case report of seizure worsening after perampanel add-on to oxcarbazepine: possible role of metabolic interaction and pharmacogenetics.","authors":"Xin Fang, Menglu Zhu, Lijiang Wang","doi":"10.3389/fpsyt.2025.1621598","DOIUrl":null,"url":null,"abstract":"<p><strong>Objective: </strong>To investigate the factors contributing to increased seizure frequency in patients treated with a combination of oxcarbazepine (OXC) and perampanel.</p><p><strong>Methods: </strong>The influence of the combined use of perampanel and oxcarbazepine on pharmacokinetics was analyzed, and the results were further confirmed by scoring the Naranjo Adverse Reaction Scale. The influence of race on antiseizure medications (ASMs) was also analyzed.</p><p><strong>Results: </strong>The concomitant use of perampanel and oxcarbazepine increased the plasma concentration of oxcarbazepine. Scoring with the Naranjo adverse reaction scale indicated that the deterioration of seizures in patients following the addition of perampanel may be associated with the interaction of the two drugs.</p><p><strong>Conclusion: </strong>The exacerbation of epilepsy in patients may be attributed to the increased blood concentration of oxcarbazepine resulting from its combination with perampanel, which potentially triggers a worsening of seizures. Variations in gene mutations related to Asian factors, as well as differences in drug metabolism enzymes and transporters, may also contribute to alterations in the concentration of ASMs.</p>","PeriodicalId":12605,"journal":{"name":"Frontiers in Psychiatry","volume":"16 ","pages":"1621598"},"PeriodicalIF":3.2000,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12500544/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Frontiers in Psychiatry","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.3389/fpsyt.2025.1621598","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/1/1 0:00:00","PubModel":"eCollection","JCR":"Q2","JCRName":"PSYCHIATRY","Score":null,"Total":0}
引用次数: 0
Abstract
Objective: To investigate the factors contributing to increased seizure frequency in patients treated with a combination of oxcarbazepine (OXC) and perampanel.
Methods: The influence of the combined use of perampanel and oxcarbazepine on pharmacokinetics was analyzed, and the results were further confirmed by scoring the Naranjo Adverse Reaction Scale. The influence of race on antiseizure medications (ASMs) was also analyzed.
Results: The concomitant use of perampanel and oxcarbazepine increased the plasma concentration of oxcarbazepine. Scoring with the Naranjo adverse reaction scale indicated that the deterioration of seizures in patients following the addition of perampanel may be associated with the interaction of the two drugs.
Conclusion: The exacerbation of epilepsy in patients may be attributed to the increased blood concentration of oxcarbazepine resulting from its combination with perampanel, which potentially triggers a worsening of seizures. Variations in gene mutations related to Asian factors, as well as differences in drug metabolism enzymes and transporters, may also contribute to alterations in the concentration of ASMs.
期刊介绍:
Frontiers in Psychiatry publishes rigorously peer-reviewed research across a wide spectrum of translational, basic and clinical research. Field Chief Editor Stefan Borgwardt at the University of Basel is supported by an outstanding Editorial Board of international researchers. This multidisciplinary open-access journal is at the forefront of disseminating and communicating scientific knowledge and impactful discoveries to researchers, academics, clinicians and the public worldwide.
The journal''s mission is to use translational approaches to improve therapeutic options for mental illness and consequently to improve patient treatment outcomes.