Evidence map›Paper›PMID 21527563›Full record

Trial reportClinical cancer research : an official journal of the American Association for Cancer Research2011

Prospective analysis of parametric response map-derived MRI biomarkers: identification of early and distinct glioma response patterns not predicted by standard radiographic assessment.

Craig J Galbán, Thomas L Chenevert, Charles R Meyer, Christina Tsien, Theodore S Lawrence, Daniel A Hamstra, Larry Junck, Pia C Sundgren, Timothy D Johnson, Stefanie Galbán and 3 more

2 registry-linked trialsOpen access · bronzeAbstract readClinical Trial
In one paragraph

Trial report in Clinical cancer research : an official journal of the American Association for Cancer Research, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 56 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
56citing papers in PubMed, 2 pooled it
5.6field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT02613988 naunknown statusnot on this mapstarted 2020, after this paper: background citation

Early Response Assessment Using on 3T Advanced MR Imaging as Predictor of Long-term Treatment Response in Newly Diagnosed Glioblastomas

TypeinterventionalSponsorAsan Medical CenterRan2020 to 2025Enrolled100ConditionsAdult GlioblastomaArms3 Tesla magnetic resonance imaging, Chemical exchange saturation transfer MRI, Diffusion weighted MRI, Dynamic susceptibility contrast MRI
NCT03506139 phase2withdrawnnot on this mapstarted 2019, after this paper: background citation

Phase II Study of High Dose Radiotherapy and Concurrent Temozolomide Using Biologically-based Target Volume Definition in Patients With Newly Diagnosed Glioblastoma

TypeinterventionalSponsorJohn M. BuattiRan2019 to 2026Enrolled0ConditionsGlioblastoma, Glioblastoma MultiformeArmsExternal beam radiation therapy
3 · Its place in the literature

Who cites it

56 citing papers in PubMed, 2 syntheses or guidelines pooled it, 88 citations in OpenAlex.

  1. Interval brain imaging for adults with cerebral glioma.The Cochrane database of systematic reviews · 2019
    Pooled it
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  19. A PRM approach for early prediction of breast cancer response to chemotherapy based on registered MR images.International journal of computer assisted radiology and surgery · 2018
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors at 1 institution in 1 country.

Craig J GalbánDepartment of Radiology, University of Michigan, Center for Molecular Imaging, Ann Arbor, Michigan 48109, USA.
Thomas L Chenevert
Charles R Meyer
Christina Tsien
Theodore S Lawrence
Daniel A Hamstra
Larry Junck
Pia C Sundgren
Timothy D Johnson
Stefanie Galbán
Judith S Sebolt-Leopold
Alnawaz Rehemtulla
Brian D Ross
University of Michigan–Ann Arbor · US

Funding

QUANTITATION OF HUMAN BRAIN TUMOR THERAPY RESPONSE BY MRP01CA085878 · NCI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI ROSS, BRIAN D. · 2001 to 2017
$31.9M
Small Animal Imaging CoreP50CA093990 · NCI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI ROSS, BRIAN D. · 2002 to 2012
$19.0M
Presurgical Planning with Optimized Verbalized Speech Activation Studies inP01CA087634 · NCI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI FESSLER, JEFFREY A · 2002 to 2013
$14.8M
NCI NIH HHS P01 CA085878NCI NIH HHS P01 CA087634NCI NIH HHS P01CA087634NCI NIH HHS P01CA85878NCI NIH HHS P50 CA093990NCI NIH HHS P50CA93990
6 · The paper itself

Abstract

purposeCurrently, radiologic response of brain tumors is assessed according to the Macdonald criteria 10 weeks from the start of therapy. There exists a critical need to identify nonresponding patients early in the course of their therapy for consideration of alternative treatment strategies. Our study assessed the effectiveness of the parametric response map (PRM) imaging biomarker to provide for an earlier measure of patient survival prediction. EXPERIMENTAL

designForty-five high-grade glioma patients received concurrent chemoradiation. Quantitative MRI including apparent diffusion coefficient (ADC) and relative cerebral blood volume (rCBV) maps were acquired pretreatment and 3 weeks midtreatment on a prospective institutional-approved study. PRM, a voxel-by-voxel image analysis method, was evaluated as an early prognostic biomarker of overall survival. Clinical and conventional MR parameters were also evaluated.

resultsMultivariate analysis showed that PRM(ADC+) in combination with PRM(rCBV-) obtained at week 3 had a stronger correlation to 1-year and overall survival rates than any baseline clinical or treatment response imaging metric. The composite biomarker identified three distinct patient groups, nonresponders [median survival (MS) of 5.5 months, 95% CI: 4.4-6.6 months], partial responders (MS of 16 months, 95% CI: 8.6-23.4 months), and responders (MS has not yet been reached).

conclusionsInclusion of PRM(ADC+) and PRM(rCBV-) into a single imaging biomarker metric provided early identification of patients resistant to standard chemoradiation. In comparison to the current standard of assessment of response at 10 weeks (Macdonald criteria), the composite PRM biomarker potentially provides a useful opportunity for clinicians to identify patients who may benefit from alternative treatment strategies.

Indexed as

BiomarkersMagnetic Resonance ImagingBrain NeoplasmsGliomaHumansKaplan-Meier EstimateMiddle AgedModels, StatisticalNeoplasm StagingPrognosisProspective StudiesRadiographyBiomarkers

Identifiers

PMID21527563
PMCPMC3139775
OpenAlexW2041481362

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.