Safety and Efficacy Study of a New Chemotherapy Agent to Treat Non Small Cell Lung Cancer.

Inclusion Criteria: * Non small cell lung cancer, Stage IIIB or Stage IV * One and only 1 prior platinum-based chemotherapy * No other uncontrolled concurrent illness * Use of highly effective birth control methods in males or females with reproductive potential Exclusion Criteria: * Previous participation in another trial within the last 4 weeks * Surgery within 10 days prior to the start of study treatment * Brain metastases * Confirmed diagnosis of infection with the human immunodeficiency virus (HIV) * Current treatment with warfarin sodium (Coumadin) or similar anticoagulation medication * Breast feeding