Evidence map›Paper›PMID 24773774›Full record

Trial reportBMC cancer2014

Detection of EGFR mutations in plasma and biopsies from non-small cell lung cancer patients by allele-specific PCR assays.

Britta Weber, Peter Meldgaard, Henrik Hager, Lin Wu, Wen Wei, Julie Tsai, Azza Khalil, Ebba Nexo, Boe S Sorensen

Registry-linked trialOpen access · goldAbstract readClinical Trial
In one paragraph

Trial report in BMC cancer, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00815971 (Mutations in the Epidermal Growth Factor Receptor), which is not on this map. Cited by 89 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
89citing papers in PubMed, 5 pooled it
14.0field-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.

NCT00815971 unknown statusnot on this map

Mutations in the Epidermal Growth Factor Receptor(EGFR) Gene in Non-Small Cell Lung Carcinoma (NSCLC) and the Relation to Response of Treatment With Erlotinib

TypeobservationalSponsorAarhus University HospitalRan2008 to 2011Enrolled300ConditionsNon-Small Cell Lung Cancer
3 · Its place in the literature

Who cites it

89 citing papers in PubMed, 5 syntheses or guidelines pooled it, 152 citations in OpenAlex.

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  7. Improved EGFR mutation detection using combined exosomal RNA and circulating tumor DNA in NSCLC patient plasma.Annals of oncology : official journal of the European Society for Medical Oncology · 2018
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29 more citing papers are in PubMed but not listed here.

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

9 authors at 1 institution in 1 country.

Britta Weber
Peter Meldgaard
Henrik Hager
Lin Wu
Wen Wei
Julie Tsai
Azza Khalil
Ebba Nexo
Boe S SorensenDepartment of Clinical Biochemistry, Aarhus University Hospital, Norrebrogade 44, Aarhus 8000, Denmark. boesoere@rm.dk.
Aarhus University Hospital · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLung cancer patients with mutations in the epidermal growth factor receptor (EGFR) are primary candidates for EGFR-targeted therapy. Reliable analyses of such mutations have previously been possible only in tumour tissue. Here, we demonstrate that mutations can be detected in plasma samples with allele-specific PCR assays.

methodsPairs of the diagnostic biopsy and plasma obtained just prior to start of erlotinib treatment were collected from 199 patients with adenocarcinoma of non-small-cell lung cancer. DNA from both sample types was isolated and examined for the presence of mutations in exons 18-21 of the EGFR gene, employing the cobas(®) EGFR Tissue Test and cobas(®) EGFR Blood Test (in development, Roche Molecular Systems, Inc., CA, USA).

resultsTest results were obtained in all 199 (100%) plasma samples and 196/199 (98%) of the biopsies. EGFR-activating mutations were identified in 24/199 (12%) plasma samples and 28/196 (14%) biopsy samples, and 17/196 (9%) matched pairs contained the same mutation. Six EGFR mutations were present only in plasma samples but not in the biopsy samples. The overall concordance of the EGFR gene mutations detected in plasma and biopsy tissue was 179/196 (91%) (kappa value: 0.621).

conclusionMutational analysis of the EGFR gene in plasma samples is feasible with allele-specific PCR assays and represents a non-invasive supplement to biopsy analysis.

trial registrationM-20080012 from March 10, 2008 and reported to ClinicalTrials.gov: NCT00815971.

Indexed as

AdultAgedAged, 80 and overAllelesBiopsyCarcinoma, Non-Small-Cell LungErbB ReceptorsErlotinib HydrochlorideFemaleHumansMaleMiddle AgedMutationNeoplasm StagingQuinazolinesEGFR protein, humanErbB ReceptorsErlotinib HydrochlorideQuinazolines

Identifiers

PMID24773774
PMCPMC4014134
OpenAlexW2015117608

What OpenQuestion holds

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LicenceCC BY
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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.