Liposomal Irinotecan Based FOLFIRI With Bevacizumab in First-line Treatment of Advanced Colorectal Cancer

irinotecan liposome 60 mg/m2, iv, for at least 90 minutes LV 400 mg/m2, iv, for at least 2 hours FU 400 mg/m2, iv, followed by FU 2400 mg/m2, iv for at least 46 hours bevacizumab 5mg/kg IV. The above scenario is repeated every two weeks. Patients were treated until disease progression, toxic intolerance, initiation of a new antitumor therapy, withdrawal of knowledge, or investigator judgment that subjects should withdraw from study therapy.