Every 8 weeks, you will have a CT scan of your chest, abdomen, and pelvis and a chest x-ray. You will be asked about any drugs that you are currently taking and you will have a complete physical exam. You will be asked about any side effects that you might have experienced since the last visit and your ability to perform daily activities will be evaluated. Repeat bone scans and MRI of the brain may be done if your doctor thinks it is necessary.