Fruquintinib in the Cross-line Treatment of Refractory mCRC

Third-line treatment with fruquintinib combined with PD-1 inhibitors. Fruquintinib: 5mg,Oral once daily,2 weeks on/1 week off,Q3W； PD-1 inhibitor：for example, Sintilimab,iv,200mg, Q3W.

Fourth-line treatment with fruquintinib combined with TAS-102 . Fruquintinib: 3-5mg(Depending on the patient's physical condition), Oral once daily,3 weeks on/1 week off,Q4W； TAS-102:orally, 35mg/m2 twice daily (maximum dose 80mg in a single dose) for days 1-5, repeated every 14 days.