LDRT Sequential NIPS Immunochemotherapy for Peritoneal Metastasis of Gastric and Colorectal Cancer

Inclusion criteria

• ✓. Age between18 and 75 years old.
• ✓. Histologically confirmed gastric cancer/colon cancer, and diagnosed as peritoneal metastasis of tumor through laparoscopy/puncture (patients must have metastatic tumors located within the peritoneal cavity).
• ✓. An Eastern Cooperative Oncology Group (ECOG) performance status ≤2.
• ✓. According to the Response Evaluation Criteria in Solid Tumors (RECIST) 1.1, patients must have measurable disease within the irradiated area.
• ✓. Expected survival period≥3 months
• ✓. Adequate cardiac function (Left Ventricular Ejection Fractions \> 50%), hepatic function (total serum bilirubin ≤ 1.5 ×upper limit of normal, alanine aminotransferase or aspartate aminotransferase ≤ 2.5 × upper limit of normal), renal function (serum creatinine ≤ 1.5 × ULN or glomerular filtration rate \> 60 ml/min, based on Cockcroft-Gault), and hematopoietic function (white blood cells ≥ 4.0 × 109 cells per L, neutrophils ≥ 1.5 × 109 cells per L, hemoglobin ≥ 90 g/L, platelets ≥ 100 × 109 cells per L).
• ✓. Sign the informed consent and have good compliance.

Exclusion criteria