Cited by 35Glioma Diagnosis and TreatmentRadiomics and Machine Learning in Medical ImagingBrain Tumor Detection and Classification

Prognostic value of contrast enhancement and FLAIR for survival in newly diagnosed glioblastoma treated with and without bevacizumab: results from ACRIN 6686

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Boxerman, Jerrold L, Zhang, Zheng, Safriel, Yair, Rogg, Jeffrey M, Wolf, Ronald L, Mohan, Suyash, Marques, Helga, Sorensen, A Gregory +2 more·2018·Neuro-Oncology

Abstract

Background: ACRIN 6686/RTOG 0825 was a phase III trial of conventional chemoradiation plus adjuvant temozolomide with bevacizumab or without (placebo) in newly diagnosed glioblastoma. This study investigated whether changes in contrast-enhancing and fluid attenuated inversion recovery (FLAIR)-hyperintense tumor assessed by central reading prognosticate overall survival (OS). Methods: Two hundred eighty-four patients (171 men; median age 57 y, range 19-79; 159 on bevacizumab) had MRI at post-op (baseline) and pre-cycle 4 of adjuvant temozolomide (22 wk post chemoradiation initiation). Four central readers measured bidimensional lesion enhancement (2D-T1) and FLAIR hyperintensity at both time points. Changes from baseline to pre-cycle 4 for both markers were dichotomized (increasing vs non-increasing). Cox proportional hazards model and Kaplan-Meier survival estimates were used for inference. Results: Adjusting for treatment, increasing 2D-T1 (n = 262, hazard ratio [HR] = 2.07, 95% CI: 1.48-2.91, P < 0.0001) and FLAIR (n = 273, HR = 1.75, 95% CI: 1.26-2.41, P = 0.0008) significantly predicted worse OS. Median OS (days) was significantly shorter for patients with increasing versus non-increasing 2D-T1 for both bevacizumab (443 vs 535, P = 0.004) and placebo (526 vs 887, P = 0.001). Median OS was significantly shorter for patients with increasing versus non-increasing FLAIR for placebo (595 vs 872, P = 0.001), and trended similarly for bevacizumab (499 vs 535, P = 0.0935). Adjusting for 2D-T1 and treatment, increasing FLAIR represented significantly higher risk for death (HR = 1.59 [1.11-2.26], P = 0.01). Conclusion: Increased 2D-T1 significantly predicts worse OS in both treatment groups, implying absence of a substantial proportion of pseudoprogression 22 weeks after initiation of standard therapy. FLAIR adds value beyond 2D-T1 in predicting OS, potentially addressing the pseudoresponse effect by substratifying bevacizumab-treated patients with non-increasing 2D-T1.

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  • One of the 6 out-of-sample sites (Site 11) contributed aggregated a priori data from a multi-site randomized clinical trial for newly diagnosed glioblastoma.

    “One of these 6 out-of-sample sites (Site 11) contributed aggregated a priori data from a multi-site randomized clinical trial for newly diagnosed glioblastoma (ClinicalTrials.gov Identifier: NCT00884741, RTOG082572,73, ACRIN668674,75), with inherent diversity benefiting the intended generalizability validation purpose.”

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  1. Sorensen AG, Batchelor TT, Wen PY, Zhang WT, Jain RK. Response crite- ria for glioma. Nat Clin Pract Oncol. 2008;5(11):634-644.

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Authors
Boxerman, J. L., Zhang, Z., Safriel, Y., Rogg, J. M., Wolf, R. L., Mohan, S., Marques, H., Sorensen, A. G., Gilbert, M. R., & Barboriak, D. P.
Affiliations
  • Brown University (US)
  • University of South Florida (US)
  • University of Pennsylvania (US)
  • Massachusetts General Hospital (US)
  • National Institutes of Health (US)
  • Duke Medical Center (US)
Corresponding author
Boxerman, Jerrold L
Venue
Neuro-Oncology
Published
2018-03-26
Volume
20
Issue
10
Pages
1400-1410
ISSN
  • 1522-8517 (ISSN-L)
  • 1523-5866
OpenAlex
W2792671843
Cited by
35
References
46
Citations by year
2026: 1 · 2025: 4 · 2024: 1 · 2023: 8 · 2022: 3 · 2021: 4 · 2020: 9 · 2019: 5
FWCI
2.54
Type
journal article
Language
en
Open access
Locations
  • Neuro-Oncology (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Cancer Institute (CA021661, CA079778, CA080098, CA180794, CA180820, CA180822, CA180868)
  • Biomarker, Imaging and Quality of Life Studies Funding Program (BIQSFP)
Topics
  • Health Sciences › Medicine › Genetics › Glioma Diagnosis and Treatment
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Radiomics and Machine Learning in Medical Imaging
  • Life Sciences › Neuroscience › Neurology › Brain Tumor Detection and Classification
Keywords
glioblastoma, bevacizumab, contrast enhancement, FLAIR hyperintensity, prognostic imaging biomarkers, overall survival, adjuvant temozolomide, chemoradiotherapy, treatment response monitoring, anti-angiogenic therapy
MeSH terms
Bevacizumab, Temozolomide, Adult, Aged, Aged, 80 and over, Antineoplastic Combined Chemotherapy Protocols, Brain Neoplasms, Contrast Media, Double-Blind Method, Female, Follow-Up Studies, Glioblastoma, Humans, Magnetic Resonance Imaging, Male, Middle Aged, Prognosis, Prospective Studies, Radiographic Image Enhancement, Retrospective Studies, Survival Rate, Young Adult

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