Evidence map›Paper›PMID 21339192›Full record

Trial reportNeuro-oncology2011

Temozolomide in the treatment of high-grade gliomas in children: a report from the Children's Oncology Group.

Kenneth J Cohen, Ian F Pollack, Tianni Zhou, Allen Buxton, Emiko J Holmes, Peter C Burger, Daniel J Brat, Marc K Rosenblum, Ronald L Hamilton, Robert S Lavey and 1 more

Registry-linked trialOpen access · bronzeAbstract readClinical Trial, Phase II
In one paragraph

Trial report in Neuro-oncology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00028795 (A Phase II Study of Temozolomide in the Treatment of Children With High Grade Glioma), which is not on this map. Cited by 225 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
225citing papers in PubMed, 1 pooled it
11.6field-weighted citation impact, top 1% 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.

NCT00028795 phase2completednot on this map

A Phase II Study of Temozolomide in the Treatment of Children With High Grade Glioma

TypeinterventionalSponsorChildren's Oncology GroupRan2002 to 2012Enrolled170ConditionsBrain and Central Nervous System TumorsArmstemozolomide, adjuvant therapy, radiation therapy
3 · Its place in the literature

Who cites it

225 citing papers in PubMed, 1 synthesis or guideline pooled it, 394 citations in OpenAlex.

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165 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors at 6 institutions in 2 countries.

Kenneth J CohenThe Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, Baltimore, MD, USA. kcohen@jhmi.edu
Ian F Pollack
Tianni Zhou
Allen Buxton
Emiko J Holmes
Peter C Burger
Daniel J Brat
Marc K Rosenblum
Ronald L Hamilton
Robert S Lavey
Richard L Heideman
Emory University · USChildren's Oncology Group · USNeurological Surgery · USSidney Kimmel Comprehensive Cancer Center · USJohns Hopkins University · USUniversity of Southern California · US

Funding

MOLECULAR MARKERS AS PREDICTORS OF OUTCOME IN GLIOMASR01NS037704 · NINDS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI POLLACK, IAN F. · 1998 to 2015
$4.5M
NINDS NIH HHS R01 NS037704
6 · The paper itself

Abstract

To determine whether temozolomide is an active agent in the treatment of children with high-grade astrocytomas and whether survival is influenced by the expression of the O6-methylguanine-methyltransferase gene (MGMT) in these patients. In the Children's Oncology Group study ACNS0126, 107 patients with a diagnosis of anaplastic astrocytoma (AA), glioblastoma multiforme (GBM), or gliosarcoma were enrolled. All patients underwent concomitant chemoradiotherapy with temozolomide, followed by adjuvant chemotherapy with temozolomide. The outcomes were compared with those of children treated in Children's Cancer Group (CCG) study CCG-945. Formalin-fixed, paraffin-embedded tumor tissue was available in 71 cases for immunohistochemical analysis of MGMT expression. Ninety patients were deemed eligible, 31 with AA, 55 with GBM, and 4 with other eligible diagnoses. The 3-year event-free survival (EFS) and overall survival (OS) rates were 11 ± 3% and 22 ± 5%, respectively. There was no evidence that temozolomide given during radiation therapy and as adjuvant therapy resulted in improved EFS compared with that found in CCG-945 (p = 0.98). The 3-year EFS rate for AA was 13 ± 6% in ACNS0126 compared with 22 ± 5.5% in CCG-945 (p = 0.95). The 3-year EFS rate for GBM was 7 ± 4% in ACNS0126 compared with 15 ± 5% in CCG-945 (p = 0.77). The 2-year EFS rate was 17 ± 5% among patients without MGMT overexpression and 5 ± 4% among those with MGMT overexpression (p = 0.045). Temozolomide failed to improve outcome in children with high-grade astrocytomas. MGMT overexpression was adversely associated with survival.

Indexed as

AdolescentAdultAntineoplastic Agents, AlkylatingBrain NeoplasmsChemotherapy, AdjuvantChildChild, PreschoolCombined Modality TherapyDacarbazineFemaleFollow-Up StudiesGlioblastomaGliosarcomaHumansImmunoenzyme TechniquesMaleAntineoplastic Agents, AlkylatingDacarbazineO(6)-Methylguanine-DNA MethyltransferaseTemozolomide

Identifiers

PMID21339192
PMCPMC3064602
OpenAlexW2126709464

What OpenQuestion holds

Textmetadata
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.