Dose Dense Therapy and Bevacizumab in Solid Tumors and Colorectal Cancer

RATIONALE: Drugs used in chemotherapy, such as capecitabine, irinotecan, 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 more than one drug (combination chemotherapy) may kill more tumor cells. Monoclonal antibodies, such as bevacizumab, can block tumor growth in different ways. Some find tumor cells and kill them or carry tumor-killing substances to them. Others interfere with the ability of tumor cells to grow and spread. Bevacizumab may also block blood flow to the tumor. Giving combination chemotherapy together with bevacizumab may kill more tumor cells.
PURPOSE: This phase I/II trial is studying the side effects and best dose of capecitabine when given together with irinotecan and oxaliplatin with or without bevacizumab and to see how well they work in treating patients with metastatic or locally advanced colorectal cancer or other solid tumors that cannot be removed by surgery.