Hereditary Leiomyomatosis and Renal Cell Carcinoma

This phase I/II trial studies the side effects and best dose of mercaptopurine, and to see how well it works in treating patients with hereditary leiomyomatosis and renal cell carcinoma (HLRCC). HLRCC is a rare inherited disorder that increases the risk of developing benign (not cancer) tumors of the skin and the uterus (leiomyomas) and malignant (cancer) tumors of the uterus (leiomyosarcoma) and the kidney. Mercaptopurine is in a class of medications called purine antagonists. It works by stopping the growth of cancer cells.

This phase II trial studies the effects of combination therapy with bevacizumab, erlotinib, and atezolizumab in treating patients with hereditary leiomyomatosis and kidney cancer that may have spread from where it first started to nearby tissue, lymph nodes, or distant parts of the body (advanced). Bevacizumab is in a class of medications called antiangiogenic agents. They work by stopping the formation of blood vessels that bring oxygen and nutrients to tumors. This may slow the growth and spread of tumors. Erlotinib is in a class of medications called kinase inhibitors. It works by blocking the action of a protein called EGFR that signals cancer cells to multiply. This helps slow or stop the spread of cancer cells. Immunotherapy with monoclonal antibodies, such as atezolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Combination therapy with bevacizumab, erlotinib, and atezolizumab may stabilize or shrink advanced hereditary leiomyomatosis and kidney cancer.