Evidence map›Paper›PMID 32355162›Full record

ArticleScientific reports2020

Genomic copy number variation correlates with survival outcomes in WHO grade IV glioma.

Zachary S Buchwald, Sibo Tian, Michael Rossi, Geoffrey H Smith, Jeffrey Switchenko, Jennifer E Hauenstein, Carlos S Moreno, Robert H Press, Roshan S Prabhu, Jim Zhong and 6 more

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
0.6field-weighted citation impact, top 31% 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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed, 11 citations in OpenAlex.

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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

16 authors at 3 institutions in 1 country.

Zachary S Buchwald *Department of Radiation Oncology, Winship Cancer Institute, Emory University, Atlanta, GA, USA. zbuchwa@emory.edu.
Sibo Tian *Department of Radiation Oncology, Winship Cancer Institute, Emory University, Atlanta, GA, USA.ORCID http://orcid.org/0000-0001-5018-4854
Michael RossiSema4 Genomics, Branford, CT, USA.ORCID http://orcid.org/0000-0001-5808-3513
Geoffrey H SmithPathology & Laboratory Medicine, Emory University, Atlanta, GA, USA.
Jeffrey SwitchenkoDepartment of Biostatistics and Bioinformatics, Rollins School of Public Health, Emory University, Atlanta, GA, USA.
Jennifer E HauensteinPathology & Laboratory Medicine, Emory University, Atlanta, GA, USA.
Carlos S MorenoPathology & Laboratory Medicine, Emory University, Atlanta, GA, USA.ORCID http://orcid.org/0000-0002-5582-0028
Robert H PressDepartment of Radiation Oncology, Winship Cancer Institute, Emory University, Atlanta, GA, USA.
Roshan S PrabhuSoutheast Radiation Oncology Group, Levine Cancer Institute, Carolinas Healthcare System, Charlotte, NC, USA.
Jim ZhongDepartment of Radiation Oncology, Winship Cancer Institute, Emory University, Atlanta, GA, USA.
Debra F SaxePathology & Laboratory Medicine, Emory University, Atlanta, GA, USA.
Stewart G NeillPathology & Laboratory Medicine, Emory University, Atlanta, GA, USA.
Jeffrey J OlsonDepartment of Neurosurgery, Winship Cancer Institute, Emory University, Atlanta, GA, USA.
Ian R CrockerDepartment of Radiation Oncology, Winship Cancer Institute, Emory University, Atlanta, GA, USA.
Walter J CurranDepartment of Radiation Oncology, Winship Cancer Institute, Emory University, Atlanta, GA, USA.
Hui-Kuo G ShuDepartment of Radiation Oncology, Winship Cancer Institute, Emory University, Atlanta, GA, USA.
Emory University · USCarolinas Healthcare System · USSema4 (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Allele-specific copy number analysis of tumors (ASCAT) assesses copy number variations (CNV) while accounting for aberrant cell fraction and tumor ploidy. We evaluated if ASCAT-assessed CNV are associated with survival outcomes in 56 patients with WHO grade IV gliomas. Tumor data analyzed by Affymetrix OncoScan FFPE Assay yielded the log ratio (R) and B-allele frequency (BAF). Input into ASCAT quantified CNV using the segmentation function to measure copy number inflection points throughout the genome. Quantified CNV was reported as log R and BAF segment counts. Results were confirmed on The Cancer Genome Atlas (TCGA) glioblastoma dataset. 25 (44.6%) patients had MGMT hyper-methylated tumors, 6 (10.7%) were IDH1 mutated. Median follow-up was 36.4 months. Higher log R segment counts were associate with longer progression-free survival (PFS) [hazard ratio (HR) 0.32, p < 0.001], and overall survival (OS) [HR 0.45, p = 0.01], and was an independent predictor of PFS and OS on multivariable analysis. Higher BAF segment counts were linked to longer PFS (HR 0.49, p = 0.022) and OS (HR 0.49, p = 0.052). In the TCGA confirmation cohort, longer 12-month OS was seen in patients with higher BAF segment counts (62.3% vs. 51.9%, p = 0.0129) and higher log R (63.6% vs. 55.2%, p = 0.0696). Genomic CNV may be a novel prognostic biomarker for WHO grade IV glioma patient outcomes.

Indexed as

AdultAgedAged, 80 and overAllelesBrain NeoplasmsDisease-Free SurvivalDNA Copy Number VariationsFemaleGenomicsGlioblastomaGliomaHumansMaleMiddle AgedMultivariate AnalysisProgression-Free Survival

Identifiers

PMID32355162
PMCPMC7192941
OpenAlexW3023921390

What OpenQuestion holds

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Registered trials

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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.