At the end of Cycle 1 and/or 2, you will have a bone marrow aspirate to check the status of the disease. If the disease does not appear to have gotten better by the end of Cycle 2, your next bone marrow aspirate will depend on the results of your blood tests. These samples will also be used for cytogenetic testing. Cytogenetic testing looks at how changes to cell DNA (genetic material) may affect how the disease may react to the study drug.