Evidence map›Paper›PMID 34765975›Full record

ArticleNeuro-oncology advances

Impact of lymphopenia on survival for elderly patients with glioblastoma: A secondary analysis of the CCTG CE.6 (EORTC 26062-22061, TROG03.01) randomized clinical trial.

Andrew J Song, Keyue Ding, Iyad Alnahhas, Normand J Laperriere, James Perry, Warren P Mason, Chad Winch, Chris J O'Callaghan, Johan J Menten, Alba A Brandes and 8 more

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in Neuro-oncology advances. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 15% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 15 citations in OpenAlex.

  1. Pooled it
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  5. Article
  6. Correlation of dynamic blood dose with clinical outcomes in radiotherapy for head-and-neck cancer.Radiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology · 2025
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  8. Review
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  12. Optimal managements of elderly patients with glioblastoma.Japanese journal of clinical oncology · 2022
    Review
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  15. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

18 authors at 10 institutions in 7 countries.

Andrew J SongDepartment of Radiation Oncology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA.
Keyue DingDepartment of Public Health Sciences, Canadian Cancer Trials Group, Queen's University, Kingston, Ontario, Canada.
Iyad AlnahhasDepartment of Neurological Surgery, Thomas Jefferson University, Philadelphia, Pennsylvania, USA.
Normand J LaperriereDepartment of Radiation Oncology, Princess Margaret Cancer Center, Toronto, Ontario, Canada.
James PerryDepartment of Medicine, Division of Neurology, University of Toronto, Toronto, Ontario, Canada.
Warren P MasonDepartment of Medicine, Princess Margaret Cancer Centre, University of Toronto, Toronto, Ontario, Canada.
Chad WinchDepartment of Public Health Sciences, Canadian Cancer Trials Group, Queen's University, Kingston, Ontario, Canada.
Chris J O'CallaghanDepartment of Public Health Sciences, Canadian Cancer Trials Group, Queen's University, Kingston, Ontario, Canada.
Johan J MentenDepartment of Experimental Radiation Oncology, University Hospitals Leuven, Leuven, Belgium.
Alba A BrandesDepartment of Medical oncology, IRCCS Istituto Scienze Neurologiche - Bologna, Italy.
Claire PhillipsDepartment of Radiation Oncology, Peter MacCallum Cancer Centre, Melbourne, Australia.
Michael F FayGenesis Cancer Care, Newcastle, NSW, Australia.
Ryo NishikawaDepartment of Neuro-Oncology/Neurosurgery, Saitama Medical University International Medical Center, Hidaka, Japan.
David OsobaQOL Consulting, West Vancouver, British Columbia, Canada.
J Gregory CairncrossDepartment of Clinical Neurosciences, University of Calgary, Calgary, Alberta, Canada.
Wilson RoaDivision of Radiation Oncology, Cross Cancer Institute, Edmonton, Alberta, Canada.
Wolfgang WickDivision of Neurology, Heidelberg University Medical Center, Clinical Cooperation Unit Neurooncology, German Cancer Research Center, Heidelberg, Germany.ORCID https://orcid.org/0000-0002-6171-634X
Wenyin ShiDepartment of Radiation Oncology, Thomas Jefferson University, Philadelphia, Pennsylvania, USA.ORCID https://orcid.org/0000-0002-6336-3912
Queen's University · CAThomas Jefferson University · USUniversity of Toronto · CAGerman Cancer Research Center · DEIstituto delle Scienze Neurologiche di Bologna · ITKU Leuven · BEPeter MacCallum Cancer Centre · AUPrincess Margaret Cancer Centre · CASaitama Medical University · JPUniversity of Calgary · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLymphopenia may lead to worse outcomes for glioblastoma patients. This study is a secondary analysis of the CCTG CE.6 trial evaluating the impact of chemotherapy and radiation on lymphopenia, and effects of lymphopenia on overall survival (OS).

methodsCCTG CE.6 randomized elderly glioblastoma patients (≥ 65 years) to short-course radiation alone (RT) or short-course radiation with temozolomide (RT + TMZ). Lymphopenia (mild-moderate: grade 1-2; severe: grade 3-4) was defined per CTCAE v3.0, and measured at baseline, 1 week and 4 weeks post-RT. Preselected key factors for analysis included age, sex, ECOG, resection extent, MGMT methylation, Mini-Mental State Examination, and steroid use. Multinomial logistic regression and multivariable Cox regression models were used to identify lymphopenia-associated factors and association with survival.

resultsFive hundred and sixty-two patients were analyzed (281 RT vs 281 RT+TMZ). At baseline, both arms had similar rates of mild-moderate (21.4% vs 21.4%) and severe (3.2% vs 2.9%) lymphopenia. However, at 4 weeks post-RT, RT+TMZ was more likely to develop lymphopenia (mild-moderate: 27.9% vs 18.2%; severe: 9.3% vs 1.8%; p<0.001). Developing any lymphopenia post-RT was associated with baseline lymphopenia (

conclusionsDevelopment of post-RT lymphopenia is associated with addition of TMZ and baseline lymphopenia and not with RT alone in patients treated with short-course radiation. However, regardless of MGMT status, only baseline lymphopenia is associated with worse OS, which may be considered as a prognostic biomarker for elderly glioblastoma patients.

Indexed as

elderlyglioblastomalymphopeniashort-course radiotherapytemozolomide

Identifiers

PMID34765975
PMCPMC8577525
OpenAlexW3206577343

What OpenQuestion holds

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LicenceCC BY-NC
Read underepoch 390

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.