A Phase Ib Trial to Evaluate the Safety and Efficacy of FMT and Nivolumab in Subjects With Metastatic or Inoperable Melanoma, MSI-H, dMMR or NSCLC

"Cohorts A and B - Patients will receive 30 oral capsules per administration for two consecutive days (Days 1-2) Cohort C - Patients will receive FMT via colonscopy (Day 1), followed the day after by adnistration of 12 oral capsules (Day 2)~Combination cycles: 6 combined cycles Q2W of FMT maintenance followed by treatment with anti-PD1. Anti-PD-1 will be administered at least one day and up to 3 days after the FMT.~Maintenance of FMT by oral capsules: 12 capsules per administration. Anti PD-1 therapy: A dose of 240 mg Nivolumab will be administrated by intravenous infusion."