At the end of Cycle 2 and then every 2-3 cycles after that, you will have scans to check the status of the disease. This may include a chest x-ray, CT scan, MRI scan, a PET scan and/or a PET/CT scan. If the study doctor thinks it is more appropriate for you, other types of scans may need to be performed. The study doctor will discuss these scans with you, and you may be asked to sign a separate consent form.