6533b82dfe1ef96bd1292019

RESEARCH PRODUCT

Correlation between basal bilirubin levels and survival in advanced colorectal carcinoma treated with CPT-11-based chemotherapy: A study of the Gruppo Oncologico Italia Meridionale (G.O.I.M.)

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AbstractBackgroundThis study was carried out to evaluate total basal bilirubin levels as a predictive factor for survival and toxicity in patients with advanced colorectal carcinoma treated with CTP-11-based regimens.Patients and methodsThe analysis was carried out on a data base including 287 patients affected by advanced colorectal carcinoma all treated with CPT-11 plus bolus and continuous venous infusion intravenous folinic acid and 5-fluorouracil on a biweekly schedule (FOLFIRI regimen). Patients were divided into four groups according to basal bilirubin levels as follows: 0.50 and 1.00 and 1.50mg/dl. Analysis of overall median survival and time-to-progression were correlated to performance status at entry, volume of liver metastases, and carcinoembrionary antigen.ResultsGlobal statistical analysis showed that bilirubin levels were strongly correlated with time-to-progression and overall survival in a statistically significant fashion (p<0.0001). The size of liver metastases represents the only study parameter which is correlated to basal bilirubin levels in a statistically significant fashion. Neutropaenia and diarrhoea were also correlated to baseline bilirubin levels in a statistically significant manner (p=0.001).ConclusionsData reported in this study support the observation that basal bilirubin levels are a biomarker able to predict, at least in part, the clinical efficacy and toxicity of CPT-11-based chemotherapy in patients with advanced colorectal carcinoma.