Introduction: This study determines prognostic factors in patients with advanced urothelial cancer (UC) treated with gemcitabine-cisplatin or carboplatin (GC).
Material and methods: The clinical records of 30 patients with advanced UC treated with GC were retrospectively reviewed. Twenty-six patients (86.7%) had previously undergone other chemotherapies. Hematological parameters such as: neutrophil, lymphocyte and platelet counts; hemoglobin, C-reactive protein (CRP), and albumin levels; pain score; primary tumor site; tumor grade; type of platinum anti-cancer drug; and performance status before treatment were evaluated. Survival rates were calculated using the Kaplan-Meier method and analyzed using the log-rank test. Multivariate analysis was performed using a Cox proportional hazards model.
Results: The median cancer-specific survival (CSS) was 12.5 months. The overall response rate (ORR) was 30.0%. The survival rates of patients with low serum albumin (<3.5 g/dL; P = 0.008), low hemoglobin (<10.1 mg/dL; P = 0.025), high CRP (>1.0 mg/dL; P = 0.001), and a positive pain score (P = 0.002) were significantly worse than those with better blood values and pain scores. Multivariate analysis revealed serum CRP level as an independent prognostic indicator with a hazard ratio of 4.608 (95% confidence interval (CI) of 1.763-12.047; P = 0.002).
Conclusions: Pretreatment serum CRP levels could be an accurate biomarker of the survival of patients with advanced UC before GC therapy. Although this is a preliminary study with a small sample size, these results seem to be very useful in clinical practice and our findings should be confirmed in a larger group of patients.
Keywords: CRP; biomarker; chemotherapy; peripheral blood value; survival.