Safety and Efficacy of PIPAC Using Single Agent Mitomycin in Solid Tumors

Inclusion Criteria: * Participants must have histologically confirmed peritoneal disease from colorectal, small bowel, or high grade appendiceal adenocarcinoma. High grade appendiceal cancers include moderate or poorly differentiated mucinous or non-mucinous adenocarcinoma, signet ring cell adenocarcinoma, or goblet cell adenocarcinoma. This can be established by image guided biopsy, diagnostic laparoscopy, or previous surgery. * Patients must be ineligible for CRS/HIPEC through one of the following criteria: a) PCI score ≥16. b) Inability to achieve complete cytoreduction due to extent of disease. c) Significant small bowel involvement precluding a complete CRS. d) Unresectable disease in porta hepatis, pelvic side wall or other critical structure. e) Patients who decline invasive cytoreduction. * Participants must be 18 years of age or older. * Participants must have completed at least 4 months of first-line systemic therapy (5-FU based approach with or without biologic therapy). * Participants must have Eastern Cooperative Oncology Group (ECOG) Performance status of 0 or 1. * Participants must have adequate organ and marrow function as defined below: a) absolute neutrophil count ≥1500/mcL. b) platelets ≥100,000/mcL. c) total bilirubin ≤ institutional upper limit of normal (ULN). d) AST(SGOT)/ALT(SGPT) ≤3 × institutional ULN. e) creatinine ≤ 1.5 institutional ULN. or f) glomerular filtration rate (GFR) ≥60 mL/min/1.73 m2. * Human immunodeficiency virus (HIV)-infected parti…