Randomized pilot study comparing safety of irinotecan+S-1(IRIS)+bevacizumab and mFOLFIRI+bevacizumab for metastatic colorectal cancer (T-CORE0702)

Interventions: FOLFIRI + bevacizumab consisted of bevacizumab 5mg/kg as a 90-minute infusion, then, l-LV 200 mg/m2 as a 2-hour infusion, and irinotecan 150 mg/m2 given as a 90-minute infusion, followed by bolus FU 400 mg/m2 and a 46-hour infusion FU 2,400 mg/m2, repeated every 2 weeks.
IRIS + bevacizumab consisted of bevacizumab 7.5mg/kg as a 90-minute infusion, then, irinotecan 150 mg/m2 given as a 90-minute infusion, followed by oral S-1 (40 mg/m2) twice daily 14 days (day 3 to 16) followed by 5 days rest, repeated every 3 weeks.
Primary outcome(s): safety
Study Design: Parallel Randomized