Evidence map›Paper›PMID 31341973›Full record

ArticleClinical and translational radiation oncology2019

EGFR mutant locally advanced non-small cell lung cancer is at increased risk of brain metastasis.

Devarati Mitra, Yu-Hui Chen, Richard Li, Gretchen Hermann, Katelyn Atkins, David Kozono, Elizabeth H Baldini, Ayal Aizer, Ugonma Chukwueke, Raymond H Mak

Abstract read
In one paragraph

Article in Clinical and translational radiation oncology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing 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

16 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

10 authors.

Devarati MitraDepartment of Radiation Oncology, Dana-Farber Cancer Institute/Brigham and Women's Hospital, United States.
Yu-Hui ChenDepartment of Biostatistics and Computational Biology, Dana-Farber Cancer Institute, United States.
Richard LiDepartment of Radiation Oncology, Dana-Farber Cancer Institute/Brigham and Women's Hospital, United States.
Gretchen HermannDepartment of Radiation Oncology, Dana-Farber Cancer Institute/Brigham and Women's Hospital, United States.
Katelyn AtkinsDepartment of Radiation Oncology, Dana-Farber Cancer Institute/Brigham and Women's Hospital, United States.
David KozonoDepartment of Radiation Oncology, Dana-Farber Cancer Institute/Brigham and Women's Hospital, United States.
Elizabeth H BaldiniDepartment of Radiation Oncology, Dana-Farber Cancer Institute/Brigham and Women's Hospital, United States.
Ayal AizerDepartment of Radiation Oncology, Dana-Farber Cancer Institute/Brigham and Women's Hospital, United States.
Ugonma ChukwuekeDepartment of Neuro-Oncology, Dana-Farber Cancer Institute/Brigham and Women's Hospital, United States.
Raymond H MakDepartment of Radiation Oncology, Dana-Farber Cancer Institute/Brigham and Women's Hospital, United States.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeSmall studies of primarily metastatic non-small cell lung cancer (NSCLC) have suggested an association between EGFR mutation (EGFR+) and likelihood of brain metastasis. However, these studies are confounded by follow-up time bias. We performed a competing risk analysis of brain metastasis in a more uniform locally advanced NSCLC (LA-NSCLC) cohort with known tumor genotype. MATERIALS AND

methodsBetween 2002 and 2014, 255 patients with LA-NSCLC underwent tumor genotyping for EGFR, ALK and/or KRAS (180 patients had follow-up brain imaging). Cumulative incidence and Fine-Gray regression were performed on clinical variables including genotype and risk of brain metastasis, with death as a competing event.

resultsThe proportion of tumors with aberrations in EGFR, ALK and KRAS were 17%, 4% and 28%, respectively. The median follow-up was 68 months. On multivariate analysis, EGFR+ was significantly associated with risk of brain metastasis in the full patient cohort (HR 2.04, 95% CI 1.22-3.39, p = 0.006) as well as in the subset of patients with brain follow-up imaging (HR 1.91. 95% CI 1.17-3.13, p = 0.01). This translated to a higher cumulative incidence of brain metastasis in EGFR+ patients at 3 and 5 years (33.3% vs. 23.2 and 43.8% vs. 24.2%, p = 0.006).

conclusionPatients with EGFR+ LA-NSCLC have a significantly higher likelihood of developing brain metastasis after standard combined modality therapy, independent of their longer overall survival. This high-risk genotypic subgroup may benefit from routine surveillance with brain MRI to allow early salvage with targeted systemic- and/or radiation-therapies.

Indexed as

Brain metastasisEGFRLung cancer

Identifiers

PMID31341973
PMCPMC6612652

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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.