Analysis of lymphocyte-neutrophil relationship in patients with advanced kidney cancer and the response to one-line treatment with target therapies.
e23034 Background: In kidney cancer, some important prognostic factors of survival are known and inflammation plays a key role. It has been proven that cancer progress is not only determined by the characteristics of the tumor but also by the response of the host. It is known that a high RNL has been identified as an independent prognostic factor associated to poor survival in several/different types of cancer, including breast cancer, colon cancer, gastric cancer, mesothelioma and pancreas. The primary aim was to evaluate if RNL can be used as a prognostic indicator of SLP in patients with advanced CCR with 1st line treatment with tirosin-kinasa inhibitors. The secondary aim was to evaluate whether there was a relationship between prognostic factors, smoking habits, BMI, anemia, calcemia, KPS and nephrectomized patients as opposed to those who were not operated with RNL and SLP. Methods: Retrospective and analytical study. The medical histories from patients with metastatic kidney cancer diagnosis were analyzed as well as those who were undergoing treatment with Sunitinib and Pazopanib. The cut value of > ó < 3 was taken as a reference point for RNL. Overall survival analysis will be evaluated through the Kaplan-Meier curve and the meaning will be verified by the log-rank test. The multivariate analysis will be done through the Chi-square test. Results: A total of 65 patients were included in this study. 50 patients (75.38%) received treatment with Sunitinib and 15 patients (24.62%) with Pazopanib. It was observed that RNL < 3 was correlated with a higher SLP 21,6 months vs 8.9 months, p = 0,00002 and it was statistically significant. In subgroup analysis, those patients with normal values of corrected calcium the survival was 20 months vs 12, 2 months (p: 0.01), non-smokers 21 months vs 12 months (p: 0.05), KPS > 1 17,72 months Vs 8,8 months (p: 0.03) and a RNL < 3 showed a higher survival in a statistically significant way. There were no differences in survival when we performed the anemia analysis, BMI, smoking habits and KPS 0 to 1. Conclusions: We can conclude that those patients with RNL < 3 and who had already undergone treatment with ITK revealed a better SLP in a statistically significant way.