This study is for patients that have been diagnosed with stage III-IV Melanoma after a complete resection (no evidence of disease). The investigational drug in this study is relatlimab in combination with nivolumab. Investigational means the drug is not approved by the United States Food and Drug Administration (US FDA). Participants will be assigned to receive relatlimab with nivolumab in a fixed dose combination (FDC, both drugs in a single vial) or nivolumab alone, administered by intravenous (IV) infusion, meaning the drug is a solution given through a vein. The infusion is planned to take 30 minutes. Neither the participants or study doctor will know what is being administered.

This study is designed to explore if treating stage III-IV resectable melanoma patients with this combination, after they have surgery to remove all tumors, will reduce the probability of having progressive disease when compared to nivolumab alone, as well as to assess the possible side effects that this combination therapy might have. Participants can expect to be on this study for a minimum of 6 years.

The study is for subjects that have been diagnosed with Clear Cell Renal Cell Carcinoma (ccRCC) and have previously received front-line treatment. This study is testing an "investigational" (not yet FDA approved drug) study drug called AVB-S6-500. The primary purpose of this study is to evaluate the safety, tolerability and efficacy of AVB-S6-500 + cabozantinib, AVB-S6-500 + cabozantinib + nivolumab, and AVB-S6-500 alone.. The subject may remain in the study for up to 24-months if they are tolerating and showing benefits from the treatment. AVB-S6-500 will be administered through IV. Cabozantinib will be administered in a pill form to be taken at home. Your study doctor will determine how many cycles of treatment you will receive based on your condition and standard of care. You will receive AVB-S6-500 (in Part 1 or if randomized to receive in Part 2) on days 1 and 15 of each subsequent cycle. There is no limit on the number of cycles a patient can receive.

This study is for subjects that have been diagnosed with advanced solid cancer tumors or relapsed prostate cancer. The investigational drugs in this study are hydroxychloroquine, nelfinavir, metformin, dasatinib and sirolimus. The purpose of this study is to determine the safety and effectiveness of up to 5 study drugs used together for the treatment of cancer. Subjects can expect to be in this study for about 2.5 years.