A Phase III Trial Evaluating Fruquintinib Efficacy and Safety in 3+ Line Colorectal Cancer Patients （FRESCO)

Inclusion Criteria: * ≥ 18 and ≤ 75 years of age , with ≥ 40Kg * Histological or cytological confirmed colorectal cancer * ECOG performance status of 0-1 * Standard regimen failed or no standard regimen available * Adequate hepatic, renal, heart, and hematologic functions * At least one measurable lesion (larger than 10 mm in diameter by spiral CT scan) * Signed and dated informed consent * Willingness and ability to comply with scheduled visits, treatment plans, laboratory tests, and other study procedure Exclusion Criteria: * \- Pregnant or lactating women * Any factors that influence the usage of oral administration * Evidence of CNS metastasis * Intercurrence with one of the following: non-controlled hypertension, coronary artery disease, arrhythmia and heart failure * Abuse of alcohol or drugs * Less than 4 weeks from the last clinical trial - Previous treatment with VEGFR inhibition * Disability of serious uncontrolled intercurrence infection * Proteinuria ≥ 2+ (1.0g/24hr) * Have evidence or a history of bleeding tendency within two months of the enrollment, regardless of seriousness * Within 12 months before the first treatment occurs artery/venous thromboembolic events, such as cerebral vascular accident (including transient ischemic attack) etc. * Within 6 months before the first treatment occurs acute myocardial infarction, acute coronary syndrome or CABG * Bone fracture or wounds that was not cured for a long time * Coagulation dysfunction, hemorrhagic tendency or receiving anticoagulant therapy