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Cas Lek Cesk. 2011;150(6):321-6.

[KRAS mutation testing in therapeutic algorithm for treatment of metastatic colorectal carcinoma].

[Article in Czech]

Author information

  • 1Oddeleni laboratorní medicíny, Masarykův onkologický ustav, Brno dubska@mou.cz

Abstract

Targeted therapy has become an integral part of treatment procedures of malignant tumors. Colorectal carcinomas are frequently targeted with monoclonal anti-EGFR antibodies (cetuximab and panitumumab). Activating somatic mutations in codons 12 and 13 of the exon 2 of KRAS gene are considered negative predictive factors of response to anti-EGFR therapy in patients with metastatic colorectal cancer. In the Czech Republic, evaluation of mutational status of KRAS gene is performed in several referral laboratories. In 2009, these laboratories performed 2580 tests of the KRAS mutational status--out of these, 60.2% cases reported non-mutated, wild-type KRAS. In one of the referral laboratories, we demonstrate the logistics of KRAS testing procedure. Stratification of patients with metastatic colorectal tumors based on their KRAS mutational status has evolved to a standard procedure. Laboratories performing these methods shall therefore adhere to the recommendations of the professional and accredited societies.

PMID:
21751504
[PubMed - indexed for MEDLINE]
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