Radiation and immunotherapy join forces in new cancer trial

This study tests whether adding a special type of radiation (called 125I seed brachytherapy) to standard immunotherapy can help shrink tumors and keep them from growing back. The trial will include 90 adults with various cancers that have come back or spread. Half will get the combination treatment, and half will get immunotherapy alone. The goal is to see if the radiation makes the immune system work better against the cancer.