- The following tests and procedures will be performed before the participants begin taking the study drugs and before every 4 week cycle: Physical exam; medical history; questions about any side effects; tumor assessment by MRI or CT (only before every other cycle); Mini-Mental Status exam (MMSE); ECG (week 1, 2, 4, 8, 12, then every 3 months thereafter); blood pressure; blood tests and urine tests.