Evidence map›Paper›PMID 19794967›Full record

ArticleNeoplasia (New York, N.Y.)2009

Clinical implications of KRAS mutations in lung cancer patients treated with tyrosine kinase inhibitors: an important role for mutations in minor clones.

Antonio Marchetti, Michele Milella, Lara Felicioni, Federico Cappuzzo, Luciana Irtelli, Maela Del Grammastro, Mariagrazia Sciarrotta, Sara Malatesta, Carmen Nuzzo, Giovanna Finocchiaro and 8 more

Open access · goldAbstract readMulticenter Study
In one paragraph

Article in Neoplasia (New York, N.Y.), 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 2 pooled it
10.8field-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

40 citing papers in PubMed, 2 syntheses or guidelines pooled it, 99 citations in OpenAlex.

  1. Pooled it
  2. Guideline
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. TRIGGERING ANAPHASE CATASTROPHE TO COMBAT ANEUPLOID CANCERS.Transactions of the American Clinical and Climatological Association · 2020
    Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Prognostic value ofCancer management and research · 2018
    Article
  14. Article
  15. Article
  16. Article
  17. Statins augment efficacy of EGFR-TKIs in patients with advanced-stage non-small cell lung cancer harbouring KRAS mutation.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2015
    Article
  18. Article
  19. Article
  20. Low-frequencyPersonalized medicine · 2015
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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

18 authors at 3 institutions in 2 countries.

Antonio MarchettiClinical Research Center, Center of Excellence on Aging, University-Foundation, 66013 Chiety, Italy.
Michele Milella
Lara Felicioni
Federico Cappuzzo
Luciana Irtelli
Maela Del Grammastro
Mariagrazia Sciarrotta
Sara Malatesta
Carmen Nuzzo
Giovanna Finocchiaro
Bruno Perrucci
Donatella Carlone
Alain J Gelibter
Anna Ceribelli
Andrea Mezzetti
Stefano Iacobelli
Francesco Cognetti
Fiamma Buttitta
National Cancer Institute · MYIRCCS Humanitas Research Hospital · ITOspedale SS. Annunziata · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Mutations inducing resistance to anti-epidermal growth factor receptor (EGFR) therapy may have a clinical impact even if present in minor cell clones which could expand during treatment. We tested this hypothesis in lung cancer patients treated with tyrosine kinase inhibitors (TKIs). Eighty-three patients with lung adenocarcinoma treated with erlotinib or gefitinib were included in this study. The mutational status of KRAS and EGFR was investigated by direct sequencing (DS). KRAS mutations were also assessed by mutant-enriched sequencing (ME-sequencing). DS detected KRAS mutations in 16 (19%) of 83 tumors; ME-sequencing identified all the mutations detected by DS but also mutations in minor clones of 14 additional tumors, for a total of 30 (36%) of 83. KRAS mutations assessed by DS and ME-sequencing significantly correlated with resistance to TKIs (P = .04 and P = .004, respectively) and significantly affected progression-free survival (PFS) and overall survival (OS). However, the predictive power of mutations assessed by ME-sequencing was higher than that obtained by DS (hazard ratio [HR] = 2.82, P = .0001 vs HR = 1.98, P = .04, respectively, for OS; HR = 2.52, P = .0005 vs HR = 2.21, P = .007, respectively, for PFS). Survival outcome of patients harboring KRAS mutations in minor clones, detected only by ME-sequencing, did not differ from that of patients with KRAS mutations detected by DS. Only KRAS mutations assessed by ME-sequencing remained an independent predictive factor at multivariate analysis. KRAS mutations in minor clones have an important impact on response and survival of patients with lung adenocarcinoma treated with EGFR-TKI. The use of sensitive detection methods could allow to more effectively identify treatment-resistant patients.

Indexed as

MutationAdenocarcinomaAdultAgedAged, 80 and overBase SequenceDNA Mutational AnalysisErbB ReceptorsErlotinib HydrochlorideFemaleGefitinibGenes, rasHumansLung NeoplasmsMaleMiddle AgedErbB ReceptorsErlotinib HydrochlorideGefitinibProtein Kinase InhibitorsQuinazolines

Identifiers

PMID19794967
PMCPMC2745674
OpenAlexW1525382936

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.