Using Xiao Chai Hu Tang to prevent diarrhea from irinotecan chemotherapy

Inclusion criteria:

1. Malignant tumor confirmed by histology or cytology;
2. Age ≥ 18 years old, ≤ 75 years old;
3. ECOG score of the patient ≤ 2 points;
4. Patients who have diarrhea worse than grade 2 due to irinotecan chemotherapy (the last dose of irinotecan is administered within 1 month);
5. Patients who plan to receive 3 cycles of irinotecan chemotherapy (the dose of irinotecan ≥ 125mg/m2);
6. Normal organ functions which can meet the requirements for systemic chemotherapy:

   * Normal bone marrow function: absolute neutrophil count (ANC) ≥ 1.5×109/L, PLT ≥ 100×109/L, hemoglobin ≥ 90g/L;
   * Normal renal functions: serum creatinine ≤ 1.5mg/dl (133μmol/L) and/or creatinine clearance ≥ 60ml/min;
   * Normal hepatic functions: total serum bilirubin level ≤ 1.5 times of the upper limit of normal value (ULN), serum aspartate aminotransferase (AST) \& alanine aminotransferase (ALT) ≤ 2.5× ULN; AST \& ALT ≤ 5 × ULN if abnormal hepatic functions are caused by a potentially malignant tumor.
7. Patients who can understand and complete the questionnaires in the case report form;
8. Patients who can understand and sign the informed consent form, is well compliant, and can be followed up.

Exclusion Criteria:

1. Patients with diagnosed depression, obsession or/and schizophrenia;
2. Patients with diagnosed inflammatory bowel diseases (including Crohn's disease, ulcerative colitis)
3. Patient with active tuberculosis and other uncontrolled infections;
4. Patient who has previously received radiotherapy on the abdominal cavity or pelvic cavity;
5. Pregnant or lactating women;
6. Patient who previously had or is now having thromboembolic events.