Infection-Induced Elevated Plasma Perampanel in a Patient with Hemimegalencephaly

Perampanel is a noncompetitive, α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid glutamate receptor antagonist. Herein, we report a case of increased perampanel plasma concentration and impaired consciousness triggered by an infection. The patient had refractory epilepsy associated with hemimega...

Full description

Saved in:
Bibliographic Details
Main Authors: Yuya Kinoshita, Hiroe Ueno, Hirofumi Kurata, Chizuru Ikeda, Erika Hori, Takumi Okada, Tomoyuki Shimazu, Isao Fujii, Makoto Matsukura, Hoseki Imamura
Format: Article
Language:English
Published: Wiley 2022-01-01
Series:Case Reports in Pediatrics
Online Access:http://dx.doi.org/10.1155/2022/9844820
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1832550129094098944
author Yuya Kinoshita
Hiroe Ueno
Hirofumi Kurata
Chizuru Ikeda
Erika Hori
Takumi Okada
Tomoyuki Shimazu
Isao Fujii
Makoto Matsukura
Hoseki Imamura
author_facet Yuya Kinoshita
Hiroe Ueno
Hirofumi Kurata
Chizuru Ikeda
Erika Hori
Takumi Okada
Tomoyuki Shimazu
Isao Fujii
Makoto Matsukura
Hoseki Imamura
author_sort Yuya Kinoshita
collection DOAJ
description Perampanel is a noncompetitive, α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid glutamate receptor antagonist. Herein, we report a case of increased perampanel plasma concentration and impaired consciousness triggered by an infection. The patient had refractory epilepsy associated with hemimegalencephaly. During adolescence, perampanel (maximum dose, 10 mg, oral), valproic acid, clobazam, and lacosamide were administered for seizure control. He was admitted to our hospital with high fever, impaired consciousness, and elevated perampanel plasma level (from 1,300 to 1,790 ng/mL), but with no increase in the concentration of other antiseizure medications. Further examinations (blood, cerebrospinal fluid, brain magnetic resonance images, and electroencephalogram) revealed no physical cause for impaired consciousness. After discontinuation of perampanel, his level of consciousness gradually improved. The pharmacokinetics of perampanel may be modified by both hemimegalencephaly and infection, resulting in an elevated plasma concentration of perampanel. This case underlines the importance of monitoring perampanel plasma concentration in patients with underlying brain disease who develop an infection.
format Article
id doaj-art-384bd0ee364b446ca508498ca434be4f
institution Kabale University
issn 2090-6811
language English
publishDate 2022-01-01
publisher Wiley
record_format Article
series Case Reports in Pediatrics
spelling doaj-art-384bd0ee364b446ca508498ca434be4f2025-02-03T06:07:34ZengWileyCase Reports in Pediatrics2090-68112022-01-01202210.1155/2022/9844820Infection-Induced Elevated Plasma Perampanel in a Patient with HemimegalencephalyYuya Kinoshita0Hiroe Ueno1Hirofumi Kurata2Chizuru Ikeda3Erika Hori4Takumi Okada5Tomoyuki Shimazu6Isao Fujii7Makoto Matsukura8Hoseki Imamura9National Hospital Organization Kumamoto Saishun Medical CenterNational Hospital Organization Kumamoto Saishun Medical CenterNational Hospital Organization Kumamoto Saishun Medical CenterNational Hospital Organization Kumamoto Saishun Medical CenterAso Medical CenterKumamoto Kenhoku HospitalNational Hospital Organization Kumamoto Saishun Medical CenterArao Municipal HospitalKumamoto-Ashikita Center for The Severely DisabledNational Hospital Organization Kumamoto Saishun Medical CenterPerampanel is a noncompetitive, α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid glutamate receptor antagonist. Herein, we report a case of increased perampanel plasma concentration and impaired consciousness triggered by an infection. The patient had refractory epilepsy associated with hemimegalencephaly. During adolescence, perampanel (maximum dose, 10 mg, oral), valproic acid, clobazam, and lacosamide were administered for seizure control. He was admitted to our hospital with high fever, impaired consciousness, and elevated perampanel plasma level (from 1,300 to 1,790 ng/mL), but with no increase in the concentration of other antiseizure medications. Further examinations (blood, cerebrospinal fluid, brain magnetic resonance images, and electroencephalogram) revealed no physical cause for impaired consciousness. After discontinuation of perampanel, his level of consciousness gradually improved. The pharmacokinetics of perampanel may be modified by both hemimegalencephaly and infection, resulting in an elevated plasma concentration of perampanel. This case underlines the importance of monitoring perampanel plasma concentration in patients with underlying brain disease who develop an infection.http://dx.doi.org/10.1155/2022/9844820
spellingShingle Yuya Kinoshita
Hiroe Ueno
Hirofumi Kurata
Chizuru Ikeda
Erika Hori
Takumi Okada
Tomoyuki Shimazu
Isao Fujii
Makoto Matsukura
Hoseki Imamura
Infection-Induced Elevated Plasma Perampanel in a Patient with Hemimegalencephaly
Case Reports in Pediatrics
title Infection-Induced Elevated Plasma Perampanel in a Patient with Hemimegalencephaly
title_full Infection-Induced Elevated Plasma Perampanel in a Patient with Hemimegalencephaly
title_fullStr Infection-Induced Elevated Plasma Perampanel in a Patient with Hemimegalencephaly
title_full_unstemmed Infection-Induced Elevated Plasma Perampanel in a Patient with Hemimegalencephaly
title_short Infection-Induced Elevated Plasma Perampanel in a Patient with Hemimegalencephaly
title_sort infection induced elevated plasma perampanel in a patient with hemimegalencephaly
url http://dx.doi.org/10.1155/2022/9844820
work_keys_str_mv AT yuyakinoshita infectioninducedelevatedplasmaperampanelinapatientwithhemimegalencephaly
AT hiroeueno infectioninducedelevatedplasmaperampanelinapatientwithhemimegalencephaly
AT hirofumikurata infectioninducedelevatedplasmaperampanelinapatientwithhemimegalencephaly
AT chizuruikeda infectioninducedelevatedplasmaperampanelinapatientwithhemimegalencephaly
AT erikahori infectioninducedelevatedplasmaperampanelinapatientwithhemimegalencephaly
AT takumiokada infectioninducedelevatedplasmaperampanelinapatientwithhemimegalencephaly
AT tomoyukishimazu infectioninducedelevatedplasmaperampanelinapatientwithhemimegalencephaly
AT isaofujii infectioninducedelevatedplasmaperampanelinapatientwithhemimegalencephaly
AT makotomatsukura infectioninducedelevatedplasmaperampanelinapatientwithhemimegalencephaly
AT hosekiimamura infectioninducedelevatedplasmaperampanelinapatientwithhemimegalencephaly