Selumetinib and Cyclosporine in Treating Patients With Advanced Solid Tumors or Advanced or Metastatic Colorectal Cancer

This phase I/Ib trial studies the side effects and best dose of selumetinib when given together with cyclosporine in treating patients with solid tumors or colorectal cancer that have spread to other places in the body and cannot be cured or controlled with treatment. Selumetinib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Biological therapies, such as cyclosporine, use substances made from living organisms that may stimulate or suppress the immune system in different ways and stop tumor cells from growing. Giving selumetinib and cyclosporine may be a better treatment for solid tumors or colorectal cancer.