Evidence map›Paper›PMID 30488294›Full record

ArticleJournal of neuro-oncology2019

Increase of pseudoprogression and other treatment related effects in low-grade glioma patients treated with proton radiation and temozolomide.

Michael Dworkin, William Mehan, Andrzej Niemierko, Sophia C Kamran, Nayan Lamba, Jorg Dietrich, Maria Martinez-Lage, Kevin S Oh, Tracy T Batchelor, Patrick Y Wen and 2 more

Abstract read
PubMed Publisher
In one paragraph

Article in Journal of neuro-oncology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
3.2field-weighted citation impact, top 8% 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

30 citing papers in PubMed, 55 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

12 authors at 4 institutions in 1 country.

Michael DworkinDuke University School of Medicine, Durham, NC, USA.
William MehanDepartment of Radiology, Massachusetts General Hospital, Boston, MA, USA.
Andrzej NiemierkoDepartment of Radiation Oncology, Massachusetts General Hospital, 30 Fruit Street, Boston, MA, 02114, USA.
Sophia C KamranHarvard Radiation Oncology Program, Boston, MA, USA.
Nayan LambaHarvard Medical School, Boston, MA, USA.
Jorg DietrichStephen E. and Catherine Pappas Center for Neuro-Oncology, Massachusetts General Hospital, Boston, MA, USA.
Maria Martinez-LageDepartment of Pathology, Massachusetts General Hospital, Boston, MA, USA.
Kevin S OhDepartment of Radiation Oncology, Massachusetts General Hospital, 30 Fruit Street, Boston, MA, 02114, USA.
Tracy T BatchelorStephen E. and Catherine Pappas Center for Neuro-Oncology, Massachusetts General Hospital, Boston, MA, USA.
Patrick Y WenDana-Farber Cancer Institute, Boston, MA, USA.
Jay S LoefflerDepartment of Radiation Oncology, Massachusetts General Hospital, 30 Fruit Street, Boston, MA, 02114, USA.
Helen A ShihDepartment of Radiation Oncology, Massachusetts General Hospital, 30 Fruit Street, Boston, MA, 02114, USA. hshih@mgh.harvard.edu.ORCID http://orcid.org/0000-0003-1550-9726
Massachusetts General Hospital · USDana-Farber Cancer Institute · USDuke University · USHarvard University · US

Funding

MDACC Clinical and Research Physics SupportU19CA021239 · NCI · MASSACHUSETTS GENERAL HOSPITAL · PI MOHAN, RADHE · 2014 to 2018
$11.2M
NCI NIH HHS U19 CA021239
6 · The paper itself

Abstract

introductionConcurrent radiotherapy and temozolomide (TMZ) is associated with radiographic pseudoprogression (PsP) in glioblastoma. The occurrence of PsP and other treatment effects is less well understood in low-grade gliomas (LGG). The purpose of this study is to evaluate whether the addition of TMZ to radiotherapy increases the incidence of PsP in adults with LGG treated with proton radiotherapy (PRT).

methodsChart review and volumetric MRI-analysis was performed on radiotherapy-naive adults with WHO grade II or IDH mutant WHO grade III gliomas treated with PRT between 2005 and 2015. Progression was defined by histology, new chemotherapy initiation, or progressive increase in lesion volume beyond 40% from baseline. Post treatment related effects (PTRE) were defined as new/increased T2/FLAIR or abnormal enhancement which eventually resolved or stabilized without evidence of progression for a period of 6-12 months. PsP was defined as the subset of PRTE suspicious for progression or volumetrically increased at least 40% from baseline. Pearson's chi-squared test and Cox-proportional hazards models were used for statistical analysis.

resultsThere were 119 patients meeting inclusion criteria. There was an increased risk of PsP following PRT + TMZ versus PRT-alone (HR = 2.2, p = 0.006, on Cox univariate analysis). Presence of PsP was associated with improved OS (p = 0.02 with PsP as time-varying covariate).

conclusionsTMZ use, when added to PRT, was associated with increased PsP in patients with LGG; however, patients with PsP tended to achieve longer survival.

Indexed as

Proton TherapyAdolescentAdultAgedAntineoplastic Agents, AlkylatingBrain NeoplasmsCombined Modality TherapyDisease ProgressionFemaleGliomaHumansMagnetic Resonance ImagingMaleMiddle AgedNeoplasm GradingTemozolomideAntineoplastic Agents, AlkylatingTemozolomideLow-grade gliomasProton radiotherapyPseudoprogressionRadiation necrosisToxicity

Identifiers

PMID30488294
OpenAlexW2903061646

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.