P-191Combined analysis of KRAS, NRAS, BRAF mutations and mismatch repair deficiency testing in Indian patients with metastatic colorectal carcinoma: A single centre experience

Introduction: Molecular evaluation of KRAS, NRAS and BRAF mutation has become an important part in colorectal carcinoma evaluation as their alterations determine the therapeutic response to anti-EGFR therapy and prognosis. MMR deficiency is important for identification of Lynch syndrome families and it has now become an important biomarker of response to immunotherapy in metastatic CRC. The aim of this study is to investigate the distribution of these mutations by tumor localization and to determine the prevalence of MMR deficiency in metastatic colorectal cancer.

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