Evidence map›Paper›PMID 23936355›Full record

ArticlePloS one2013

A rational diagnostic algorithm for the identification of ALK rearrangement in lung cancer: a comprehensive study of surgically treated Japanese patients.

Kazuya Takamochi, Kengo Takeuchi, Takuo Hayashi, Shiaki Oh, Kenji Suzuki

RetractedOpen access · goldAbstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It has been retracted, and should not be counted. Cited by 15 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 3 pooled it
4.7field-weighted citation impact, top 5% 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

15 citing papers in PubMed, 3 syntheses or guidelines pooled it, 38 citations in OpenAlex.

  1. Pooled it
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  10. Anaplastic large cell lymphoma: pathology, genetics, and clinical aspects.Journal of clinical and experimental hematopathology : JCEH · 2017
    Review
  11. Article
  12. Prognostic and predictive biomarkers in lung cancer. A review.Virchows Archiv : an international journal of pathology · 2014
    Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 1 country.

Kazuya TakamochiDepartment of General Thoracic Surgery, Juntendo University School of Medicine, Tokyo, Japan.
Kengo Takeuchi
Takuo Hayashi
Shiaki Oh
Kenji Suzuki
Juntendo University · JPJapanese Foundation For Cancer Research · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundEML4-ALK fusion gene is found in only a small subset (2-6%) of non-small cell lung cancer. There is an urgent need to establish a rational diagnostic algorithm to identify this rare but important fusion in lung cancer.

methodsWe performed a comprehensive analysis of EGFR/KRAS mutation and ALK rearrangement in a total of 360 surgically resected lung cancers. ALK rearrangement was examined by 3 analyses: multiplex reverse transcription-PCR, fluorescent in situ hybridization (FISH), and immunohistochemistry (IHC) with the intercalated antibody-enhanced polymer method. A scoring system was used for IHC (iScore). A test set (202 patients with unselected lung cancer) was used for proposing a diagnostic algorithm. This diagnostic algorithm was validated in 158 patients with EGFR and KRAS mutation-negative adenocarcinoma.

resultsALK rearrangement was identified in 2 patients (1.0%) from the test set and both adenocarcinomas were negative for EGFR and KRAS mutations. The results of FISH and RT-PCR were completely matched. The highest iScore 3 was found only in the 2 positive cases. A diagnostic algorithm was proposed: IHC screening for ALK rearrangement followed by confirmatory FISH. In the validation set, 8 cases (5.1%) had iScore 3 and were positive for FISH, while the other cases had iScore 0 and were negative for FISH.

conclusionsScreening for ALK rearrangement by IHC followed by confirmatory FISH is a rational diagnostic algorithm. If needed, patients may be selected for screening ALK rearrangement by their EGFR and KRAS mutation status.

Indexed as

AlgorithmsAsian PeopleGene RearrangementAdultAnaplastic Lymphoma KinaseDNA Mutational AnalysisFemaleHumansLung NeoplasmsMaleReceptor Protein-Tyrosine KinasesSensitivity and SpecificityALK protein, humanAnaplastic Lymphoma KinaseReceptor Protein-Tyrosine Kinases

Identifiers

PMID23936355
PMCPMC3731315
OpenAlexW2048558971

What OpenQuestion holds

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LicenceCC BY
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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.