Before you can start receiving the study drug, you will have what are called "screening tests." These tests will help the doctor decide if you are eligible to take part in the study. You will have a complete physical exam, including routine blood tests (about 4 teaspoons). You may have to get either a CT scan or a MRI to measure your disease if you have not had one within 1 month. Women who are able to have children must have a negative blood-pregnancy test.