Ipilimumab and Local Radiation for Selected Solid Tumors

This pilot phase 1-2 trial studies the side effects and best of dose ipilimumab when given together with local radiation therapy and to see how well it works in treating patients with recurrent melanoma, non-Hodgkin lymphoma, colon, or rectal cancer. Monoclonal antibodies, such as ipilimumab, can block cancer growth in different ways. Some block the ability of cancer cells to grow and spread. Others find cancer cells and help kill them or carry cancer-killing substances to them. Radiation therapy uses high energy x rays to kill cancer cells. Giving monoclonal antibody therapy together with radiation therapy may be an effective treatment for melanoma, non-Hodgkin lymphoma, colon, or rectal cancer. * The phase 1 component ("safety") of this study is ipilimumab 25 mg monotherapy. * The phase 2 component ("treatment-escalation") of this study is ipilimumab 25 mg plus radiation combination therapy.