S0636: Erlotinib and Bevacizumab in Never-Smokers With Stage IIIB or Stage IV Primary Non-Small Cell Lung Cancer

RATIONALE: Erlotinib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Monoclonal antibodies, such as bevacizumab, can block tumor growth in different ways. Some block the ability of tumor cells to grow and spread. Others find tumor cells and help kill them or carry tumor-killing substances to them. Bevacizumab also may stop the growth of non-small cell lung cancer by blocking blood flow to the tumor. Giving erlotinib together with bevacizumab may kill more tumor cells. PURPOSE: This phase II trial is studying how well giving erlotinib together with bevacizumab works in treating patients with stage IIIB or stage IV primary non-small cell lung cancer who have never smoked.