Inclusion Criteria:

• Histologically confirmed locally advanced or metastatic NSCLC previously treated with 2 prior chemotherapy regimens (not including prior adjuvant therapy for stage I or II disease).
• Disease recurrence or progression after prior therapy with a platinum-based and a taxane-based regimen, given either concurrently or separately.
• Measurable disease. Measurable lesions should be outside the field of radiation. Where measurable lesions are within a previously irradiated field, there must be objective evidence of progression of the lesion prior to patient enrollment.
• Male or female patients greater than or equal to 18 years of age.
• ECOG performance status of 0 or 1.
• Must have adequate organ and immune system function as indicated by the following laboratory values, obtained less than or equal to 2 weeks prior to registration: A. Absolute neutrophil count (ANC) greater than or equal to 1.5 x 1,000,000,000. B. Hemoglobin greater than or equal to 9.0 g/dL. C. Platelet count greater than or equal to 100 x 1,000,000,000/L. D. Serum creatinine or calculated creatinine clearance less than or equal to 1.5 mg/dL or greater than or equal to 60 mL/min. E. Serum total bilirubin within limits of normal values. F. AST and ALT less than or equal to 2 times the upper limit of normal (ULN). G. Alkaline phosphatase within limits of normal values
• Anti-cancer therapy, major surgery, or irradiation must have been completed at least 3 weeks before enrollment in this study. Patient must have recovered from the acute side effects incurred as a result of previous therapy.
• Female patients with childbearing potential must have a negative pregnancy test within 7 days of study enrollment. Men and women of reproductive potential must use an effective contraceptive method while enrolled in the study.
• Signed informed consent (includes HIPAA authorization).

Exclusion Criteria:

• Patients with uncontrolled congestive heart failure or angina, patients with a history of myocardial infarction within 2 months of enrollment, or patients with cardiac functional capacity Class III or IV as defined by the New York Heart Association Classification.
• Previously treated with > 2 prior chemotherapy regimens for advanced or metastatic disease.
• Prior radiotherapy to the only site of measurable disease.
• Known hypersensitivity to study drug or its analogs.
• Use of investigational agents within previous 30 days.
• Known, active infection, or known HIV positive or presence of an AIDS related illness.
• Active secondary malignancy except minor skin cancers.
• Presence of symptomatic active brain metastases, including leptomeningeal involvement.
• Any significant concurrent disease or illness, or psychiatric disorders or alcohol or chemical abuse that would, in the opinion of the investigator, compromise patient safety or compliance, or interfere with the interpretation of study results.
• Pregnant or lactating females.