Nivolumab and Yttrium Y 90 Glass Microspheres in Treating Patients With Advanced Liver Cancer

The purpose of this study is to identify maximum tolerated dose (MTD), that is, the highest dose of the study drug nivolumab that does not cause unacceptable side effects, for combination treatment of nivolumab and yttrium Y 90 glass microspheres (Y-90). Also, to evaluate the efficacy (the effect of drug on your tumor) and the tolerability (the effect of the drug on your body) of nivolumab, when given with standard of care Y-90 (Therasphere). Nivolumab is currently Food and Drug Administration (FDA) approved for other cancers, but has not yet been investigated in advanced or refractory hepatocellular carcinoma. Nivolumab is an antibody (a human protein that sticks to a part of the tumor and/or immune cells) designed to allow the body's immune system to work against tumor cells. Y-90 is currently FDA approved for the treatment of hepatocellular carcinomas, but has not yet been investigated in combination with nivolumab for this disease.