This phase II trial tests whether nivolumab and ipilimumab works to shrink tumors in patients with liver cancer that has spread to nearby tissue or lymph nodes (locally advanced), has spread to other places in the body (metastatic), or cannot be removed by surgery (unresectable). Immunotherapy with monoclonal antibodies, such as nivolumab and ipilimumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Nivolumab and ipilimumab may be effective in killing tumor cells in patients with liver cancer.

The primary objective of this study is to assess the safety and tolerability and to determine
the recommended Phase 2 dose (RP2D) of E7386 in combination with other anticancer drug(s).