ecrin-mdr-crcClinical2010Colorectal CancerColorectal NeoplasmsColorectal CancerColorectal NeoplasmsInterventionalhttps://newmdr.ecrin.org/Study/2094455China85-fluorouracilChemotherapyAdvanced colorectal cancerS-1LevoleucovorinLeucovorinElderly patientsFluorouracilECRIN MDRNot providedfalseS-1/Leucovorin (SL) Versus sLV5FU2 as the First-line Treatment for Elderly Patients With Colorectal CancerThis phase II trial on the assumption that S-1 combined with Leucovorin may have better efficacy and safety than simplified 5-FU/LV infusion therapy in elderly patients with advanced colorectal cancer.2010-08-152094455NCT01193452