After each of the first three courses, you will have a re-evaluation of the disease. Re-evaluation will require the same scans to be performed as were done at study entry. If the tumor shows a complete or partial response to the treatment after the second course, then continuation on the study will be at the discretion of the treating physician. If the disease is stable, meaning there is no change in the size or degree of the tumor, then treatment can continue for a total of 3 courses overall.