P-267The prognostic impact of sidedness in RAS wild-type colorectal cancer

Introduction: Colorectal cancer (CRC) is a heterogeneous disease and sidedness [right colon (RC) vs. left colon (LC)] reflects different clinical, biological and molecular behaviors, which could have a significant prognostic impact. This study tried to evaluate the impact of sidedness on overall survival (OS) and progression-free survival (PFS) in RAS wild-type (RAS-WT) CRC patients treated with anti-EGFR antibodies in first line palliative chemotherapy.

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