Eligibility Criteria:
Inclusion Criteria:
* Histologically or cytologically confirmed Ⅳ phase of colorectal cancer with liver metastases (TanyNanyM1), and the liver metastases are unresectable; Or Histologically or cytologically confirmed Ⅳb phase of esophageal squamous cell carcinoma with liver metastases (TanyNanyM1) (excluding mixed type adenosquamous carcinoma), and the liver metastases are unresectable; Or Histologically or cytologically confirmed other gastrointestinal tumors with liver metastases (excluding gastrointestinal stromal tumors, neuroendocrine tumors and other malignant tumors of non-glandular epithelial origin), and the liver metastases are unresectable;
* No previous systemic treatment, including chemotherapy, targeted and immunotherapy;
* The target lesion must contain liver metastases. According to RECIST version 1.1, liver metastases have at least one measurable focus;
* Age from 18-75 years old;
* ECOG performance status of 0-1;
* Life expectancy of at least 3 months;
* The main organs are functioning normally (normal main organs function as defined below: Hemoglobin (Hb) ≥ 90 g/L, Neutrophils (ANC) ≥ 1.5×109/L, Platelet count (PLT) ≥ 90×109/L, Total bilirubin (TBIL) ≤ 1.5 × normal upper limit (ULN), Aspartate aminotransferase (AST) and Alanine aminotransferase (ALT) ≤ 5 ×ULN, Creatinine Clearance rate (CCr) ≥60ml/min)
* Women of childbearing potential should agree to use and utilize an adequate method of contraception (such as intrauterine device,contraceptive and condom) throughout treatment and for at least 3 months after study is stopped;the result of serum or urine pregnancy test should be negative before enrollment;Man participants should agree to use and utilize an adequate method of contraception throughout treatment and for at least 2 months after study is stopped.
* Subjects volunteered to join the study, signed informed consent, good compliance, with follow-up.
Exclusion Criteria:
Patients with active bleeding within 2 months of primary and/or metastatic lesions;
* Patients with previous arterial/venous thrombosis events within 6 months, such as cerebrovascular accidents (including temporary ischemic attack), deep venous thrombosis or pulmonary embolism;
* Patients who are receiving thrombolytic or anticoagulant therapies such as warfarin, heparin, or their analogists; allowed to take low-dose heparin (6000 to 12,000 U/d for adults) or low-dose aspirin (≤100 mg/d) for prophylactic purposes with an INR≤1.5×ULN;
* Gastrointestinal diseases with a bleeding tendency (such as active gastrointestinal ulcer) or be likely to cause gastrointestinal bleeding, perforation, or obstruction, or patients with fistula;
* Have undergone major surgery (craniotomy, thoracotomy or open surgery) within 4 weeks prior to the first dose study;
* HER2-positive gastric adenocarcinoma;
* A history of immunodeficiency, including a positive HIV test or other acquired, congenital immunodeficiency disease, or a history of organ transplantation;
* A variety of factors affecting oral medications (such as inability to swallow, chronic diarrhea, and intestinal obstruction);
* Symptomatic central nervous system metastasis and/or cancerous meningitis are known to exist;
* Patients with any severe and / or uncontrolled disease, including: Patients with hypertension that cannot be well controlled by single antihypertensive therapy (SBP ≥150 mmHg, Diastolic BP ≥100mmHg); Or taking two or more antihypertensive drugs to control blood pressure; Acute myocardial infarction, malignant arrhythmias (including QT interval \> 450ms in men and \> 470ms in women) and ≥2 grade congestive heart failure (NYHA grade); Active or uncontrolled severe infection (NCI-CTC AE grade ≥2 infection); Liver diseases such as cirrhosis, decompensated liver disease, active hepatitis, or chronic hepatitis (HBV-DNA \> 1000 IU/mL) require antiviral therapy; Diabetic patients with poor blood glucose control (fasting blood glucose (FBG) \> 10 mmol/L); Routine urine indicated urine protein ≥ ++, and confirmed 24-hour urine protein quantitative \> 1.0 g;
* Clinically significant ascites, including any ascites that can be found on a physical examination, ascites that has been treated or currently in need of treatment, and only those with a small amount of ascites but no symptoms can be selected;
* A moderate amount of fluid in both sides of the chest, or a large amount of fluid in one side of the chest, or has caused respiratory dysfunction Patient to be drained;
* Uncontrolled metabolic disorders or other non-malignant organs or secondary reactions to systemic diseases or cancers that may lead to higher medical risk and/or uncertainty in survival evaluation;
* Known to have active tuberculosis;
* Suffering from interstitial lung disease requiring steroid therapy;
* Significantly malnourished patients;
* Those who have a history of psychotropic substance abuse and are unable to quit or have a mental disorder;
* Known to be allergic to the test drug;
* Participated in clinical trials of other anti-tumor therapies within 4 weeks;
* Pregnant or lactating women.;
* History of other primary malignancies, but the following: 1) complete remission of malignant tumors for at least 2 years prior to enrollment and no additional treatment during the study; 2) non-melanoma skin cancer or malignant freckle-like sputum with adequate treatment and no evidence of disease recurrence; 3) adequately treated and In situ carcinoma without evidence of disease recurrence;
* According to the investigator's judgment, there are serious concomitant diseases that endanger the safety of the patient or affect the patient's completion of the study.