Evidence map›Paper›PMID 25086987›Full record

ArticleJournal of cancer research and clinical oncology2015

The efficacy of EGFR gene mutation testing in various samples from non-small cell lung cancer patients: a multicenter retrospective study.

Paweł Krawczyk, Rodryg Ramlau, Joanna Chorostowska-Wynimko, Tomasz Powrózek, Marzena Anna Lewandowska, Janusz Limon, Bartosz Wasąg, Juliusz Pankowski, Jerzy Kozielski, Ewa Kalinka-Warzocha and 16 more

Abstract readMulticenter Study
In one paragraph

Article in Journal of cancer research and clinical oncology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing 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

15 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Review
  6. Detection ofOncotarget · 2017
    Article
  7. Article
  8. Predictors ofOncology letters · 2017
    Article
  9. Article
  10. The relationship between RRM1 gene polymorphisms and effectiveness of gemcitabine-based first-line chemotherapy in advanced NSCLC patient.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2016
    Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Review
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

26 authors.

Paweł KrawczykDepartment of Pneumonology, Oncology and Allergology, Medical University of Lublin, Jaczewskiego 8 St., 20-954, Lublin, Poland, krapa@poczta.onet.pl.
Rodryg Ramlau
Joanna Chorostowska-Wynimko
Tomasz Powrózek
Marzena Anna Lewandowska
Janusz Limon
Bartosz Wasąg
Juliusz Pankowski
Jerzy Kozielski
Ewa Kalinka-Warzocha
Aleksandra Szczęsna
Kamila Wojas-Krawczyk
Michał Skroński
Rafał Dziadziuszko
Paulina Jaguś
Ewelina Antoszewska
Justyna Szumiło
Bożena Jarosz
Aldona Woźniak
Wojciech Jóźwicki
Wojciech Dyszkiewicz
Monika Pasieka-Lis
Dariusz M Kowalski
Maciej Krzakowski
Jacek Jassem
Janusz Milanowski

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionTesting for the epidermal growth factor receptor (EGFR) gene mutations requires considerable multidisciplinary experience of clinicians (for appropriate patient selection), pathologists (for selection of appropriate cytological or histological material) and geneticists (for performing and reporting reliable molecular tests). We present our experience on the efficacy of routine EGFR testing in various types of tumor samples and the frequency of EGFR mutations in a large series of Polish non-small cell lung cancer (NSCLC) patients.

methodsDeletions in exon 19 and substitution L858R in exon 21 of EGFR gene were assessed using real-time PCR techniques in 1,138 small biopsies or cytological specimens and in 1,312 surgical samples.

resultsOut of 2,450 diagnostic samples (containing >10% of tumor cells), the occurrence of EGFR gene mutations was 9%; more frequently in women (13.9%) and adenocarcinoma patients (10%), particularly with accompanying expression of TTF1 (13.0%). The frequency of EGFR gene mutations was similar in cytological and histological specimens, and in primary and metastatic lesions, and did not depend on the percentage of tumor cells and quality of isolated DNA. Cytological or small biopsy, compared to surgical specimens showed lower percentage of tumor cells, with no impact on the quality of real-time PCR assay.

conclusionCytological and small biopsy samples with low (10-20%) content of tumor cells and specimens from metastatic lesions are a sufficient source for EGFR mutation testing in NSCLC patients. The incidence of EGFR gene mutations in examined population was similar to those reported in other Caucasian populations.

Indexed as

DNA Mutational AnalysisAdenocarcinomaAgedCarcinoma, AdenosquamousCarcinoma, Large CellCarcinoma, Non-Small-Cell LungCarcinoma, Squamous CellDNA-Binding ProteinsErbB ReceptorsFemaleFollow-Up StudiesHumansLung NeoplasmsMaleMiddle AgedMutationDNA-Binding ProteinsEGFR protein, humanErbB ReceptorsTranscription FactorsTTF1 protein, human

Identifiers

PMID25086987
PMCPMC4282872

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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.