Evidence map›Paper›PMID 20697298›Full record

ArticleJournal of thoracic oncology : official publication of the International Association for the Study of Lung Cancer2010

Novel epidermal growth factor receptor mutation-specific antibodies for non-small cell lung cancer: immunohistochemistry as a possible screening method for epidermal growth factor receptor mutations.

Yasufumi Kato, Nir Peled, Murry W Wynes, Koichi Yoshida, Marta Pardo, Celine Mascaux, Tatsuo Ohira, Masahiro Tsuboi, Jun Matsubayashi, Toshitaka Nagao and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in Journal of thoracic oncology : official publication of the International Association for the Study of Lung Cancer, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed, 6 pooled it
12.7field-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.

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

50 citing papers in PubMed, 6 syntheses or guidelines pooled it, 118 citations in OpenAlex.

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  6. Guidelines for biomarker testing in advanced non-small-cell lung cancer. A national consensus of the Spanish Society of Medical Oncology (SEOM) and the Spanish Society of Pathology (SEAP).Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2012
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  19. Molecular profiling of single circulating tumor cells from lung cancer patients.Proceedings of the National Academy of Sciences of the United States of America · 2016
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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 2 countries.

Yasufumi KatoDivision of Medical Oncology, University of Colorado Denver, Aurora, Colorado 80045, USA.
Nir Peled
Murry W Wynes
Koichi Yoshida
Marta Pardo
Celine Mascaux
Tatsuo Ohira
Masahiro Tsuboi
Jun Matsubayashi
Toshitaka Nagao
Norihiko Ikeda
Fred R Hirsch
University of Colorado Denver · USTokyo Medical University Hospital · JPTokyo Medical University · JPKanagawa Prefectural Hospital Organization · JP

Funding

Tissue Bank and Biomarkers CoreP50CA058187 · NCI · UNIVERSITY OF COLORADO DENVER · PI MILLER, YORK E · 1992 to 2018
$43.8M
NCI NIH HHS P50 CA058187NCI NIH HHS P50-CA058187
6 · The paper itself

Abstract

backgroundEpidermal growth factor receptor (EGFR) mutations in non-small cell lung cancer (NSCLC) predict better outcome to EGFR tyrosine kinase inhibitors. The most common mutations are exon 19 deletions (most frequently E746-A750) and L858R point mutation in exon 21. Here, we evaluated the accuracy of novel EGFR mutation-specific antibodies in a Japanese cohort with NSCLC and compared with direct DNA sequencing and clinical outcome. MATERIALS AND

methodsImmunohistochemistry (IHC) using antibodies specific for the E746-A750 and L858R mutations in EGFR was performed on tissue microarrays of tumors from 70 gefitinib treated NSCLC patients. Extracted DNA was sequenced for mutational analysis of EGFR exons 18 to 21.

resultsDNA sequencing showed EGFR mutations in 41 patients (58.6%) and exon 19 deletions in 18 patients (25.7%), 11 of 18 (61%) had a deletion in the range of E746-A750 and 12 (17.1%) had exon 21 mutations (L858R). IHC showed, for the E746-A750 and L858R mutations, sensitivity (81.8 and 75%), specificity (100 and 96.6%), positive predictive value (100 and 81.8%), and negative predictive value (96.7 and 94.9%). Analysis for objective response rates and survival were not correlated to IHC staining, although the combined staining showed nonsignificant trends toward better overall survival for patients with EGFR mutations.

conclusionsThe mutation-specific IHC antibodies have high sensitivity and specificity for predefined EFGR mutations and may be suitable for screening for these predefined mutations. However, negative IHC results require further mutation analyses before excluding EGFR-targeted therapy.

Indexed as

AdenocarcinomaAdultAgedAged, 80 and overAntibodies, MonoclonalCarcinoma, Large CellCarcinoma, Non-Small-Cell LungCarcinoma, Squamous CellCohort StudiesDNA, NeoplasmErbB ReceptorsFemaleFollow-Up StudiesHumansImmunoenzyme TechniquesLung NeoplasmsAntibodies, MonoclonalDNA, NeoplasmEGFR protein, humanErbB Receptors

Identifiers

PMID20697298
PMCPMC2946481
OpenAlexW2112096254

What OpenQuestion holds

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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.