Evidence map›Paper›PMID 25800101›Full record

GuidelineCancer science2015

Japanese Society of Medical Oncology Clinical Guidelines: RAS (KRAS/NRAS) mutation testing in colorectal cancer patients.

Hiroya Taniguchi, Kentaro Yamazaki, Takayuki Yoshino, Kei Muro, Yasushi Yatabe, Toshiaki Watanabe, Hiromichi Ebi, Atsushi Ochiai, Eishi Baba, Katsuya Tsuchihara and 1 more

Abstract readPractice Guideline
In one paragraph

Guideline in Cancer science, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 3 pooled it
–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

27 citing papers in PubMed, 3 syntheses or guidelines pooled it.

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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

11 authors.

Hiroya TaniguchiDepartment of Clinical Oncology, Aichi Cancer Center Hospital, Aichi, Japan.
Kentaro Yamazaki
Takayuki Yoshino
Kei Muro
Yasushi Yatabe
Toshiaki Watanabe
Hiromichi Ebi
Atsushi Ochiai
Eishi Baba
Katsuya Tsuchihara
Japanese Society of Medical Oncology

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The Japanese guidelines for the testing of KRAS mutations in colorectal cancer have been used for the past 5 years. However, new findings of RAS (KRAS/NRAS) mutations that can further predict the therapeutic effects of anti-epidermal growth factor receptor (EGFR) antibody therapy necessitated a revision of the guidelines. The revised guidelines included the following five basic requirements for RAS mutation testing to highlight a patient group in which anti-EGFR antibody therapy may be ineffective: First, anti-EGFR antibody therapy may not offer survival benefit and/or tumor shrinkage to patients with expanded RAS mutations. Thus, current methods to detect KRAS exon 2 (codons 12 and 13) mutations are insufficient for selecting appropriate candidates for this therapy. Additional testing of extended KRAS/NRAS mutations is recommended. Second, repeated tests are not required for the detection; tissue materials of either primary or metastatic lesions are applicable for RAS mutation testing. Evaluating RAS mutations prior to anti-EGFR antibody therapy is recommended. Third, direct sequencing with manual dissection or allele-specific PCR-based methods is currently applicable for RAS mutation testing. Fourth, thinly sliced sections of formalin-fixed, paraffin-embedded tissue blocks are applicable for RAS mutation testing. One section stained with H&E should be provided to histologically determine whether the tissue contains sufficient amount of tumor cells for testing. Finally, RAS mutation testing must be performed in laboratories with appropriate testing procedures and specimen management practices.

Indexed as

Antibodies, MonoclonalAntibodies, Monoclonal, HumanizedAntineoplastic AgentsCetuximabColorectal NeoplasmsErbB ReceptorsGenetic TestingGTP PhosphohydrolasesHumansJapanMembrane ProteinsMutationPanitumumabParaffin EmbeddingProto-Oncogene ProteinsProto-Oncogene Proteins p21(ras)Antibodies, MonoclonalAntibodies, Monoclonal, HumanizedAntineoplastic AgentsCetuximabEGFR protein, humanErbB ReceptorsGTP PhosphohydrolasesKRAS protein, humanMembrane ProteinsNRAS protein, humanPanitumumabProto-Oncogene ProteinsProto-Oncogene Proteins p21(ras)ras ProteinsAnti-EGFR antibodiescolorectal cancerguidelineK-ras genesN-ras genes

Identifiers

PMID25800101
PMCPMC4376442

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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.