Background: Systemic inflammation response (SIR)-related variables are controversial as predictive variables.
Methods: Patients with metastatic pancreatic adenocarcinoma (mPDAC) receiving chemotherapy were identified, three SIR-related variables and the relationships between each of them with overall survival (OS) were analysed.
Results: Of 129 patients receiving chemotherapy, 97 had metastases. A significant relationship between SIR and OS has been documented. Each of the SIR-related variables retained its independent prognostic role after multivariate analysis, whereas tri-linear peripheric blood-cell score (TRIS) appeared as the most reliable predictive parameter.
Conclusions: Among patients with mPDAC receiving chemotherapy, SIR is prognostic and could predict the effectiveness of chemotherapy.
Keywords: Metastatic pancreatic cancer; derived neutrophil-to-lymphocyte ratio; systemic inflammation response; trilinear peripheric blood cell score.