Neutrophil/lymphocyte ratio (NLR) may predict prognostic factor with gemcitabine, cisplatin (GC) for patients with advanced biliary tract cancer.

410Background: There is little information available about prognostic markers of GC (gemcitabine, cisplatin) in patients with advanced biliary tract cancer (BTC). Neutrophil/lymphocyte ratio (NLR) in several cancers was might to be a prognostic factor associated with clinical outcomes, we examine NLR in patient with BTC underwent chemotherapy (GC). Methods: Retrospective chart review for consecutive patients who underwent GC for advanced BTC in our institute were performed. The patients who were enrolled in ongoing clinical trials were excluded. Gemcitabine and cisplatin were administered intravenously at doses of 1,000 or 25 mg/m2, on day one and eight, every three weeks. We divided these patients based on estimated NLR, and evaluated the clinicopathological factors and survival in the two groups (NLR ≥ 3 or < 3). Results: 57 patients from 2013 to 2017 were reviewed. 23 patients were in NLR ≥ 3 group and 34 patients were in NLR < 3 group. Patients characteristics were as follows; median age, 68 years old...