Survival Benefit of Compound Kushen Injection in the Treatment of Advanced Colorectal Cancer

Inclusion Criteria: ① Patients with advanced CRC confirmed by pathology or cytology and receiving first-line therapy;② Aged ≥ 18 years old, male or female;③ ECOG score 0-2 points;④ Expected survival ≥ 3 months;⑤ According to RECIST1.1 criteria, at least one detectable lesion;⑥ Voluntarily join the study, sign informed consent, compliance with good cooperation with follow-up. Exclusion Criteria: * Combined with other malignant primary tumors; * Immunohistochemistry/polymerase chain reaction/second-generation sequencing results suggest MSI-H/dMMR patients; * Patients with recurrence and metastasis within 6 months after radical tumor surgery; * Patients who have previously or are undergoing cancer immunotherapy ; Patients undergoing radiation therapy; * Pregnant or lactating women; women of childbearing age and their spouses can not take effective contraceptive measures during and within 6 months after the end of clinical study; ⑥ Psychiatric patients; ⑦ Patients with severe, uncontrolled organic disease or infection, such as decompensated heart, lung, kidney failure caused by intolerance to chemotherapy; ⑧ Patients who have received clinical trials of small molecule drugs within 28 days or received clinical trials of large molecule drugs within 3 months; ⑨ Patients who are known to be allergic to or intolerant of study drugs.