Expanded Use of Vorasidenib in Non-Enhancing Recurrent CNS WHO Grade 3 Oligodendroglioma

<b>Background/Objectives</b>: Anaplastic oligodendrogliomas (AOs) are central nervous system (CNS) World Health Organization (WHO) grade 3 gliomas characterized by isocitrate dehydrogenase (IDH) mutation (m)IDH and 1p/19q codeletion. AOs are typically treated with surgery and chemoradiat...

Full description

Saved in:
Bibliographic Details
Main Authors: Alexander S. Himstead, Jefferson W. Chen, Eleanor Chu, Mari A. Perez-Rosendahl, Michelle Zheng, Sherin Mathew, Carlen A. Yuen
Format: Article
Language:English
Published: MDPI AG 2025-01-01
Series:Biomedicines
Subjects:
Online Access:https://www.mdpi.com/2227-9059/13/1/201
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1832589008371187712
author Alexander S. Himstead
Jefferson W. Chen
Eleanor Chu
Mari A. Perez-Rosendahl
Michelle Zheng
Sherin Mathew
Carlen A. Yuen
author_facet Alexander S. Himstead
Jefferson W. Chen
Eleanor Chu
Mari A. Perez-Rosendahl
Michelle Zheng
Sherin Mathew
Carlen A. Yuen
author_sort Alexander S. Himstead
collection DOAJ
description <b>Background/Objectives</b>: Anaplastic oligodendrogliomas (AOs) are central nervous system (CNS) World Health Organization (WHO) grade 3 gliomas characterized by isocitrate dehydrogenase (IDH) mutation (m)IDH and 1p/19q codeletion. AOs are typically treated with surgery and chemoradiation. However, chemoradiation can cause detrimental late neurocognitive morbidities and an accelerated disease course. The recently regulatory-approved vorasidenib, a brain-penetrating oral inhibitor of IDH1/2, has altered the treatment paradigm for recurrent/residual non-enhancing surgically resected CNS WHO grade 2 mIDH gliomas. Though vorasidenib can delay the time to chemoradiation for grade 2 gliomas, the implications for vorasidenib in non-grade 2 mIDH gliomas are not well understood. <b>Results:</b> We present a case of a 71-year-old male with a grade 3 non-enhancing oligodendroglioma successfully treated with vorasidenib with an 11% reduction in residual tumor volume. Vorasidenib was well tolerated in our patient with a mild elevation in his liver transaminases that resolved following a brief interruption in treatment. <b>Conclusions:</b> Our case suggests that vorasidenib may impart therapeutic benefits in this setting. This case illustrates the need for further investigation into these less commonly addressed scenarios and treatment strategies that extend beyond current guidelines.
format Article
id doaj-art-c9497851684644b1867417507802dd91
institution Kabale University
issn 2227-9059
language English
publishDate 2025-01-01
publisher MDPI AG
record_format Article
series Biomedicines
spelling doaj-art-c9497851684644b1867417507802dd912025-01-24T13:24:22ZengMDPI AGBiomedicines2227-90592025-01-0113120110.3390/biomedicines13010201Expanded Use of Vorasidenib in Non-Enhancing Recurrent CNS WHO Grade 3 OligodendrogliomaAlexander S. Himstead0Jefferson W. Chen1Eleanor Chu2Mari A. Perez-Rosendahl3Michelle Zheng4Sherin Mathew5Carlen A. Yuen6Department of Neurological Surgery, University of California, Irvine, CA 92697, USADepartment of Neurological Surgery, University of California, Irvine, CA 92697, USADepartment of Radiological Sciences, University of California, Irvine, CA 92697, USADepartment of Pathology & Laboratory Medicine, University of California, Irvine, CA 92697, USAUC Irvine Charlie Dunlop School of Biological Sciences, University of California, Irvine, CA 92697, USADepartment of Research, University of California, Irvine, CA 92697, USADepartment of Neurology, Division of Neuro-Oncology, University of California, Irvine, CA 92697, USA<b>Background/Objectives</b>: Anaplastic oligodendrogliomas (AOs) are central nervous system (CNS) World Health Organization (WHO) grade 3 gliomas characterized by isocitrate dehydrogenase (IDH) mutation (m)IDH and 1p/19q codeletion. AOs are typically treated with surgery and chemoradiation. However, chemoradiation can cause detrimental late neurocognitive morbidities and an accelerated disease course. The recently regulatory-approved vorasidenib, a brain-penetrating oral inhibitor of IDH1/2, has altered the treatment paradigm for recurrent/residual non-enhancing surgically resected CNS WHO grade 2 mIDH gliomas. Though vorasidenib can delay the time to chemoradiation for grade 2 gliomas, the implications for vorasidenib in non-grade 2 mIDH gliomas are not well understood. <b>Results:</b> We present a case of a 71-year-old male with a grade 3 non-enhancing oligodendroglioma successfully treated with vorasidenib with an 11% reduction in residual tumor volume. Vorasidenib was well tolerated in our patient with a mild elevation in his liver transaminases that resolved following a brief interruption in treatment. <b>Conclusions:</b> Our case suggests that vorasidenib may impart therapeutic benefits in this setting. This case illustrates the need for further investigation into these less commonly addressed scenarios and treatment strategies that extend beyond current guidelines.https://www.mdpi.com/2227-9059/13/1/201vorasidenibanaplastic oligodendrogliomaisocitrate dehydrogenaseIDH inhibitorglioma
spellingShingle Alexander S. Himstead
Jefferson W. Chen
Eleanor Chu
Mari A. Perez-Rosendahl
Michelle Zheng
Sherin Mathew
Carlen A. Yuen
Expanded Use of Vorasidenib in Non-Enhancing Recurrent CNS WHO Grade 3 Oligodendroglioma
Biomedicines
vorasidenib
anaplastic oligodendroglioma
isocitrate dehydrogenase
IDH inhibitor
glioma
title Expanded Use of Vorasidenib in Non-Enhancing Recurrent CNS WHO Grade 3 Oligodendroglioma
title_full Expanded Use of Vorasidenib in Non-Enhancing Recurrent CNS WHO Grade 3 Oligodendroglioma
title_fullStr Expanded Use of Vorasidenib in Non-Enhancing Recurrent CNS WHO Grade 3 Oligodendroglioma
title_full_unstemmed Expanded Use of Vorasidenib in Non-Enhancing Recurrent CNS WHO Grade 3 Oligodendroglioma
title_short Expanded Use of Vorasidenib in Non-Enhancing Recurrent CNS WHO Grade 3 Oligodendroglioma
title_sort expanded use of vorasidenib in non enhancing recurrent cns who grade 3 oligodendroglioma
topic vorasidenib
anaplastic oligodendroglioma
isocitrate dehydrogenase
IDH inhibitor
glioma
url https://www.mdpi.com/2227-9059/13/1/201
work_keys_str_mv AT alexandershimstead expandeduseofvorasidenibinnonenhancingrecurrentcnswhograde3oligodendroglioma
AT jeffersonwchen expandeduseofvorasidenibinnonenhancingrecurrentcnswhograde3oligodendroglioma
AT eleanorchu expandeduseofvorasidenibinnonenhancingrecurrentcnswhograde3oligodendroglioma
AT mariaperezrosendahl expandeduseofvorasidenibinnonenhancingrecurrentcnswhograde3oligodendroglioma
AT michellezheng expandeduseofvorasidenibinnonenhancingrecurrentcnswhograde3oligodendroglioma
AT sherinmathew expandeduseofvorasidenibinnonenhancingrecurrentcnswhograde3oligodendroglioma
AT carlenayuen expandeduseofvorasidenibinnonenhancingrecurrentcnswhograde3oligodendroglioma