In this study, we plan to enroll 30 patients with advanced colorectal cancer after failure of second-line standard chemotherapy. The therapeutic regimen is raltitrexed, 3 mg/㎡, ivgtt, d1, apatinib 500 mg, qd,po, d1-21, Every 3 weeks for 1 cycles, the primary end point was PFS, the secondary end point was OS, DCR, ORR etc. Aim to observe the efficacy and safety of raltitrexed combined with apatinib as a third-line treatment of in patients with advanced colorectal cancer.
