Veliparib, Oxaliplatin, and Capecitabine in Treating Patients With Advanced Solid Tumors

This phase I trial is studying the side effects and the best dose of veliparib when given together with capecitabine and oxaliplatin in treating patients with advanced solid tumors. Veliparib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Drugs used in chemotherapy, such as capecitabine and oxaliplatin, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Giving veliparib together with capecitabine and oxaliplatin may kill more tumor cells.