Evidence map›Paper›PMID 31940389›Full record

ArticlePloS one2020

Evaluation of KRAS, NRAS and BRAF mutations detection in plasma using an automated system for patients with metastatic colorectal cancer.

Claire Franczak, Andréa Witz, Karen Geoffroy, Jessica Demange, Marie Rouyer, Marie Husson, Vincent Massard, Céline Gavoille, Aurélien Lambert, Pauline Gilson and 4 more

Open access · goldAbstract readEvaluation Study
In one paragraph

Article in PloS one, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
0.8field-weighted citation impact, top 35% 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

12 citing papers in PubMed, 16 citations in OpenAlex.

  1. Trial
  2. Observational
  3. Article
  4. Review
  5. Review
  6. Sequential RAS mutations evaluation in cell-free DNA of patients with tissue RAS wild-type metastatic colorectal cancer: the PERSEIDA (Cohort 2) study.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2024
    Observational
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
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

14 authors at 2 institutions in 1 country.

Claire FranczakInstitut de Cancérologie de Lorraine, Service de Biopathologie, Vandoeuvre les Nancy, France.
Andréa WitzInstitut de Cancérologie de Lorraine, Service de Biopathologie, Vandoeuvre les Nancy, France.ORCID 0000-0002-1131-5193
Karen GeoffroyInstitut de Cancérologie de Lorraine, Service de Biopathologie, Vandoeuvre les Nancy, France.
Jessica DemangeInstitut de Cancérologie de Lorraine, Service de Biopathologie, Vandoeuvre les Nancy, France.
Marie RouyerInstitut de Cancérologie de Lorraine, Service de Biopathologie, Vandoeuvre les Nancy, France.
Marie HussonInstitut de Cancérologie de Lorraine, Service de Biopathologie, Vandoeuvre les Nancy, France.
Vincent MassardInstitut de Cancérologie de Lorraine, Département d'oncologie médicale, Vandoeuvre les Nancy, France.
Céline GavoilleInstitut de Cancérologie de Lorraine, Département d'oncologie médicale, Vandoeuvre les Nancy, France.
Aurélien LambertInstitut de Cancérologie de Lorraine, Département d'oncologie médicale, Vandoeuvre les Nancy, France.ORCID 0000-0001-9990-1201
Pauline GilsonUniversité de Lorraine, CNRS UMR 7039 CRAN, Institut de Cancérologie de Lorraine, Service de Biopathologie, Nancy, France.
Nicolas GambierCHRU Nancy, Department of Clinical Pharmacology and Toxicology, Nancy, France.
Julien Scala-BertolaCHRU Nancy, Department of Clinical Pharmacology and Toxicology, Nancy, France.
Jean-Louis MerlinUniversité de Lorraine, CNRS UMR 7039 CRAN, Institut de Cancérologie de Lorraine, Service de Biopathologie, Nancy, France.
Alexandre HarléUniversité de Lorraine, CNRS UMR 7039 CRAN, Institut de Cancérologie de Lorraine, Service de Biopathologie, Nancy, France.ORCID 0000-0001-9548-6522
Institut de Cancérologie de Lorraine · FRCentre National de la Recherche Scientifique · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCell-free DNA detection is becoming a surrogate assay for tumor genotyping. Biological fluids often content a very low amount of cell-free tumor DNA and assays able to detect very low allele frequency mutant with a few quantities of DNA are required. We evaluated the ability of the fully-automated molecular diagnostics platform Idylla for the detection of KRAS, NRAS and BRAF hotspot mutations in plasma from patients with metastatic colorectal cancer (mCRC). MATERIALS AND

methodsFirst, we evaluated the limit of detection of the system using two set of laboratory made samples that mimic mCRC patient plasma, then plasma samples from patients with mCRC were assessed using Idylla system and BEAMing digital PCR technology.

resultsLimits of detection of 0.1%, 0.4% and 0.01% for KRAS, NRAS and BRAF respectively have been reached. With our laboratory made samples, sensitivity up to 0.008% has been reached. Among 15 patients' samples tested for KRAS mutation, 2 discrepant results were found between Idylla and BEAMing dPCR. A 100% concordance between the two assays has been found for the detection of NRAS and BRAF mutations in plasma samples.

conclusionsThe Idylla system does not reach as high sensitivity as assays like ddPCR but has an equivalent sensitivity to modified NGS technics with a lower cost and a lower time to results. These data allowed to consider the Idylla system in a routine laboratory workflow for KRAS, NRAS and BRAF mutations detection in plasma.

Indexed as

Biomarkers, TumorCell Line, TumorCirculating Tumor DNAClinical Trials as TopicColorectal NeoplasmsDNA Mutational AnalysisGene FrequencyGenotyping TechniquesGTP PhosphohydrolasesHumansLimit of DetectionMembrane ProteinsMicrofluidic Analytical TechniquesMutationProto-Oncogene Proteins B-rafProto-Oncogene Proteins p21(ras)Biomarkers, TumorBRAF protein, humanCirculating Tumor DNAGTP PhosphohydrolasesKRAS protein, humanMembrane ProteinsNRAS protein, humanProto-Oncogene Proteins B-rafProto-Oncogene Proteins p21(ras)

Identifiers

PMID31940389
PMCPMC6961936
OpenAlexW2999018756

What OpenQuestion holds

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LicenceCC BY
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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.