 If you are benefitting from the study treatment and your doctor feels that it is your best interest, you may continue to receive the study drug longer than 10 weeks. During your participation in this extended treatment phase, every 4 weeks you will have a physical exam and your performance status will be evaluated. You will have blood about 2-3 teaspoons drawn for routine tests. Every 4 weeks, you will have ECGs performed. You will also have a chest x-ray and computed tomography CT scans of your chest to measure the status of the disease every 8 weeks. Your study drug will continue to be provided to you. 