Gastrointestinal Microbiome Study of Appendiceal Cancer

A Cohort Study of the Gastrointestinal Microbiome in Appendiceal Cancer With Peritoneal Spread

This study analyzes the gastrointestinal microbiome of appendiceal cancer patients with peritoneal spread scheduled to undergo cytoreductive surgery with hyperthermic intraperitoneal chemotherapy (CRS/HIPEC). Participants will provide fecal samples pre- and post-operatively.

Analysis of the human microbiome is an attempt to define how changes in the human microbiome are associated with health or disease.

Eligible participants scheduled to undergo cytoreductive surgery with hyperthermic intraperitoneal chemotherapy (CRS/HIPEC) for appendiceal cancer will provide fecal samples pre- and post-operatively. Investigators will analyze potential changes in the gastrointestinal microbiome and make comparisons to an age-matched healthy sample.

Inclusion Criteria:

• Diagnosis of appendiceal cancer with peritoneal spread
• Candidate for cytoreductive surgery with hyperthermic intraperitoneal chemotherapy (CRS/HIPEC)
• ≥18 and ≤ 80 years of age
• Eastern Cooperative Oncology Group performance status score of ≤2/Karnofsky performance status (KPS) ≥70%
• Signed Institutional Review Board approved informed consent

Exclusion Criteria:

• <18 years of age
• Pregnant women
• Concurrent severe medical problems unrelated to malignancy