Preventing Toxicity in Renal Cancer Patients Treated With Immunotherapy Using Fecal Microbiota Transplantation

Fecal microbiota transplantation is the process of administering stool samples derived from healthy donors, which have been processed and prepared into capsules. Capsules will be taken 7 days or more prior to the first treatment with nivolumab and ipilimumab, and 1 to 3 days prior to the next 2 treatments with nivolumab and ipilimumab.