Before treatment starts, participants will have a complete checkup, blood tests, chest x-ray, and heart function test. Women able to have children must have a negative blood pregnancy test. A blood sample (3 teaspoons) will be taken once a week during treatment and at the end of treatment. A complete exam will also be done at the end of treatment. Tumors will be measured by computed tomography (CT) scan every 6 weeks while one study and at the end of treatment.