Noninvasive Characterization of Tumor Angiogenesis and Oxygenation in Bevacizumab-treated Recurrent Glioblastoma by Using Dynamic Susceptibility MRI: Secondary Analysis of the European Organization for Research and Treatment of Cancer 26101 Trial.
Angiogenesis Inhibitors
/ therapeutic use
Antineoplastic Agents, Alkylating
/ therapeutic use
Bevacizumab
/ therapeutic use
Brain Neoplasms
/ drug therapy
Contrast Media
Europe
Female
Glioblastoma
/ drug therapy
Humans
Lomustine
/ therapeutic use
Magnetic Resonance Imaging
/ methods
Male
Middle Aged
Neoplasm Recurrence, Local
Neovascularization, Pathologic
/ drug therapy
Prospective Studies
Survival Analysis
Journal
Radiology
ISSN: 1527-1315
Titre abrégé: Radiology
Pays: United States
ID NLM: 0401260
Informations de publication
Date de publication:
10 2020
10 2020
Historique:
pubmed:
29
7
2020
medline:
18
12
2020
entrez:
29
7
2020
Statut:
ppublish
Résumé
Background Relevance of antiangiogenic treatment with bevacizumab in patients with glioblastoma is controversial because progression-free survival benefit did not translate into an overall survival (OS) benefit in randomized phase III trials. Purpose To perform longitudinal characterization of intratumoral angiogenesis and oxygenation by using dynamic susceptibility contrast agent-enhanced (DSC) MRI and evaluate its potential for predicting outcome from administration of bevacizumab. Materials and Methods In this secondary analysis of the prospective randomized phase II/III European Organization for Research and Treatment of Cancer 26101 trial conducted between October 2011 and December 2015 in 596 patients with first recurrence of glioblastoma, the subset of patients with availability of anatomic MRI and DSC MRI at baseline and first follow-up was analyzed. Patients were allocated into those administered bevacizumab (hereafter, the BEV group; either bevacizumab monotherapy or bevacizumab with lomustine) and those not administered bevacizumab (hereafter, the non-BEV group with lomustine monotherapy). Contrast-enhanced tumor volume, noncontrast-enhanced T2 fluid-attenuated inversion recovery (FLAIR) signal abnormality volume, Gaussian-normalized relative cerebral blood volume (nrCBV), Gaussian-normalized relative blood flow (nrCBF), and tumor metabolic rate of oxygen (nTMRO
Identifiants
pubmed: 32720870
doi: 10.1148/radiol.2020200978
doi:
Substances chimiques
Angiogenesis Inhibitors
0
Antineoplastic Agents, Alkylating
0
Contrast Media
0
Bevacizumab
2S9ZZM9Q9V
Lomustine
7BRF0Z81KG
Types de publication
Clinical Trial, Phase II
Clinical Trial, Phase III
Journal Article
Randomized Controlled Trial
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
164-175Commentaires et corrections
Type : CommentIn