Combined assessment of epidermal [corrected] growth factor receptor dual color in situ hybridization and immunohistochemistry with downstream gene mutations in prediction of response to the anti-EGFR therapy for patients with metastatic colorectal cancer.

Abstract excerpt

BACKGROUND AND AIMS: Biomarkers associated with anti-EGFR antibodies therapy have been investigated in metastatic colorectal cancer (CRC). We conducted this study to evaluate the clinical utility of a combined assessment of EGFR status and genomic mutations of the EGFR downstream signal pathway in predicting the efficacy of anti-EGFR antibody treatment. METHODS: We collected formalin-fixed paraffin-embedded tumor...

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