Evidence map›Paper›PMID 28432588›Full record

ArticleJournal of neuro-oncology2017

Patterns of care and outcomes of multi-agent versus single-agent chemotherapy as part of multimodal management of low grade glioma.

Waqar Haque, Vivek Verma, E Brian Butler, Bin S Teh

Abstract read
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In one paragraph

Article in Journal of neuro-oncology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
–field-weighted citation impact
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

19 citing papers in PubMed.

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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

4 authors.

Waqar HaqueCHI St Luke's Health, The Woodlands, TX, USA.
Vivek VermaDepartment of Radiation Oncology, University of Nebraska Medical Center, Omaha, NE, USA.
E Brian ButlerDepartment of Radiation Oncology, Houston Methodist Hospital, Cancer Center and Research Institute, Weill Cornell Medical College, Houston, TX, 77030, USA.
Bin S TehDepartment of Radiation Oncology, Houston Methodist Hospital, Cancer Center and Research Institute, Weill Cornell Medical College, Houston, TX, 77030, USA. bteh@houstonmethodist.org.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

For high-risk low-grade gliomas (LGGs), adjuvant radiotherapy (RT) with procarbazine/lomustine/vincristine (PCV) chemotherapy increases overall survival (OS) over RT alone. However, in practice, temozolomide (TMZ) is often used instead of PCV. Using the National Cancer Data Base (NCDB), we provide the first investigation of practice patterns and outcomes of chemoradiotherapy with single-agent chemotherapy (SAC, analogous to TMZ) or multi-agent chemotherapy (MAC, analogous to PCV) for LGG. Patients with high-risk Grade II LGGs were queried in the NCDB. Inclusion was limited to patients treated with definitive RT and chemotherapy. Patients were divided into cohorts receiving SAC or MAC. Kaplan-Meier analysis compared overall survival (OS), and Cox proportional hazards models determined variables independently associated with OS. Of 1029 patients, 989 (96.1%) received SAC, while 40 (3.9%) received MAC. Patients treated more recently (2010-2012) were less likely to receive MAC (p = 0.029). No differences in median OS were observed between patients treated with MAC and SAC (45.3 vs. 59.2 months, p = 0.861). Independent predictors of worse OS included age >40, high Charlson-Deyo index, other governmental/unrecorded insurance status, biopsy only, astrocytoma histology, Western geographical region, and higher income. Substuting MAC with SAC had no impact on OS (p = 0.804). There is a significantly greater utilization of SAC compared to MAC in the US. There were no differences in OS between patients receiving SAC and MAC, nor did this factor impact OS on multivariate analysis, suggesting that the practice of substituting MAC with SAC for management of LGG may not adversely affect outcome.

Indexed as

Treatment OutcomeAdultAgedAntineoplastic AgentsAntineoplastic Combined Chemotherapy ProtocolsBrain NeoplasmsChemoradiotherapyDatabases, FactualFemaleFollow-Up StudiesGliomaHumansKaplan-Meier EstimateMaleMiddle AgedProportional Hazards ModelsAntineoplastic AgentsChemotherapyLow grade gliomaRadiation therapySurvival

Identifiers

What OpenQuestion holds

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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.