Patient-Tailored, Imaging-Guided, Long-Term Temozolomide Chemotherapy in Patients with Glioblastoma

We present two patients with glioblastoma with an unusually stable clinical course and long-term survival who were treated after surgery and radiotherapy with adjuvant temozolomide (TMZ) chemotherapy for 17 and 20 cycles, respectively. Afterward, adjuvant TMZ chemotherapy was discontinued in one pat...

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Main Authors: Norbert Galldiks, Lutz W. Kracht, Lothar Burghaus, Roland T. Ullrich, Heiko Backes, Anna Brunn, Wolf-Dieter Heiss, Andreas H. Jacobs
Format: Article
Language:English
Published: SAGE Publishing 2010-01-01
Series:Molecular Imaging
Online Access:https://doi.org/10.2310/7290.2010.00002
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author Norbert Galldiks
Lutz W. Kracht
Lothar Burghaus
Roland T. Ullrich
Heiko Backes
Anna Brunn
Wolf-Dieter Heiss
Andreas H. Jacobs
author_facet Norbert Galldiks
Lutz W. Kracht
Lothar Burghaus
Roland T. Ullrich
Heiko Backes
Anna Brunn
Wolf-Dieter Heiss
Andreas H. Jacobs
author_sort Norbert Galldiks
collection DOAJ
description We present two patients with glioblastoma with an unusually stable clinical course and long-term survival who were treated after surgery and radiotherapy with adjuvant temozolomide (TMZ) chemotherapy for 17 and 20 cycles, respectively. Afterward, adjuvant TMZ chemotherapy was discontinued in one patient and the dosage of TMZ was reduced in the other. In addition to clinical status and magnetic resonance imaging, the biologic activity of the tumors was monitored by repeated methyl- 11 C-l-methionine (MET) and 3′-deoxy-3′- 18 F-fluorothymidine (FLT) positron emission tomography (PET) studies in these patients. In these patients, repeated MET-and FLT-PET imaging documented complete response to the initial treatment regimen, including resection, radiation, and TMZ, and during the course of the disease, recurrent, uncontrollable tumor activity. Continuation or dose escalation of TMZ in both patients was shown to be ineffective to overcome the metabolic activity of the tumor. Our data suggest that repeated MET- and FLT-PET imaging provide information on the biologic activity of a tumor that is highly useful to monitor and detect changes in activity.
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publishDate 2010-01-01
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series Molecular Imaging
spelling doaj-art-4b58576c4a7b47c38e7a94c21189800b2025-01-02T22:37:34ZengSAGE PublishingMolecular Imaging1536-01212010-01-01910.2310/7290.2010.0000210.2310_7290.2010.00002Patient-Tailored, Imaging-Guided, Long-Term Temozolomide Chemotherapy in Patients with GlioblastomaNorbert GalldiksLutz W. KrachtLothar BurghausRoland T. UllrichHeiko BackesAnna BrunnWolf-Dieter HeissAndreas H. JacobsWe present two patients with glioblastoma with an unusually stable clinical course and long-term survival who were treated after surgery and radiotherapy with adjuvant temozolomide (TMZ) chemotherapy for 17 and 20 cycles, respectively. Afterward, adjuvant TMZ chemotherapy was discontinued in one patient and the dosage of TMZ was reduced in the other. In addition to clinical status and magnetic resonance imaging, the biologic activity of the tumors was monitored by repeated methyl- 11 C-l-methionine (MET) and 3′-deoxy-3′- 18 F-fluorothymidine (FLT) positron emission tomography (PET) studies in these patients. In these patients, repeated MET-and FLT-PET imaging documented complete response to the initial treatment regimen, including resection, radiation, and TMZ, and during the course of the disease, recurrent, uncontrollable tumor activity. Continuation or dose escalation of TMZ in both patients was shown to be ineffective to overcome the metabolic activity of the tumor. Our data suggest that repeated MET- and FLT-PET imaging provide information on the biologic activity of a tumor that is highly useful to monitor and detect changes in activity.https://doi.org/10.2310/7290.2010.00002
spellingShingle Norbert Galldiks
Lutz W. Kracht
Lothar Burghaus
Roland T. Ullrich
Heiko Backes
Anna Brunn
Wolf-Dieter Heiss
Andreas H. Jacobs
Patient-Tailored, Imaging-Guided, Long-Term Temozolomide Chemotherapy in Patients with Glioblastoma
Molecular Imaging
title Patient-Tailored, Imaging-Guided, Long-Term Temozolomide Chemotherapy in Patients with Glioblastoma
title_full Patient-Tailored, Imaging-Guided, Long-Term Temozolomide Chemotherapy in Patients with Glioblastoma
title_fullStr Patient-Tailored, Imaging-Guided, Long-Term Temozolomide Chemotherapy in Patients with Glioblastoma
title_full_unstemmed Patient-Tailored, Imaging-Guided, Long-Term Temozolomide Chemotherapy in Patients with Glioblastoma
title_short Patient-Tailored, Imaging-Guided, Long-Term Temozolomide Chemotherapy in Patients with Glioblastoma
title_sort patient tailored imaging guided long term temozolomide chemotherapy in patients with glioblastoma
url https://doi.org/10.2310/7290.2010.00002
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