Huaier Granule As Adjuvant Therapy for Colorectal Cancer After Radical Surgery

Inclusion Criteria:

* The subjects volunteer to sign the informed consent;
* Aged: 18 to 75 years old;
* Colorectal cancer (AJCC-TNM, Stage Ⅰ, low-risk Stage Ⅱand Stage Ⅲ; Patients with Stage Ⅲ colorectal cancer refuse to postoperative adjuvant chemotherapy);
* The diagnosis and colorectal cancer has been confirmed by pathological examination after radical surgery;
* The liver and kidney function satisfies the following conditions within 15 days after surgery (excluding day 15): aspartate aminotransferase (AST), glutamic-oxalacetic transaminase (ALT), alkaline phosphatase (ALP)\< 2 upper limit of normal (ULN), total bilirubin ≤ 1.5 ULN, serum creatinine \< 1.5 ULN; normal coagulation function;
* Other laboratory tests meet the following requirements within 15 days after surgery (excluding day 15): white blood cells count ≥ 3.0×109/L, absolute neutrophil count ≥ 1.5×109/L, platelet count ≥ 100×109/L;
* ECOG：0-2 points；
* No other previous history of malignancy.

Exclusion Criteria:

* Multiple primary cancer;
* Not recover from the colorectal surgery;
* Presence of organ, bone, or skin metastases;
* Pregnant or lactating women;
* Those with active bleeding due to various reasons;
* Those with HIV infection or AIDS-associated diseases;
* Those with severe acute and chronic diseases;
* Those with severe diabetes;
* Those with serious infectious diseases;
* Those who can not take drugs by oral route;
* Drug abusers or those with psychological or mental diseases that may interfere with study compliance;
* Conditions that are considered not suitable for this study investigators.