The prognostic value of systemic inflammatory factors in BRAF (V600E) mutant metastatic colorectal cancer (mCRC).

622Background: Multiple studies have reported prognostic association of neutrophil to lymphocyte ratio (NLR), platelet to lymphocyte ratio (PLT) and albumin levels including patients with early and advanced metastatic colorectal cancer. However, it is unknown the prognostic impact in patients with BRAF (V600E) mutant metastatic colorectal cancer (mCRC). Methods: We conducted an observational, retrospective, multicentric study of patients with BRAF V600E-mt mCRC treated at nine university Spanish hospitals belonging to GITuD (Galician Research Group on Digestive Tumors). Demographic, clinic, pathological characteristics, overall survival (OS) and progression free survival (PFS) data were retrospectively analyzed. Results: Data from 65 pts. treated between November 2010 to June 2018 were recorded. Median age was 62.8 years (range 30-83), 55.4 % female, 75.4% ECOG PS0-1, 49.2% right-sided, 35.2% high grade, 69.2% synchronous presentation, 66.2% primary tumor resection and median metastatic locations was 2 (r...