Combination Chemotherapy With or Without Bevacizumab in Treating Patients With Advanced, Metastatic, or Recurrent Non-Small Cell Lung Cancer

Drugs used in chemotherapy work in different ways to stop tumor cells from dividing so they stop growing or die. Monoclonal antibodies, such as bevacizumab, 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 deliver cancer-killing substances to them. Combining chemotherapy with a monoclonal antibody may kill more tumor cells. This randomized phase II/III trial is to see if combination chemotherapy works better with or without bevacizumab in treating patients who have advanced, metastatic, or recurrent non-small cell lung cance