 If you are found to be eligible to take part in this study, you will be assigned to a study group. The group you are assigned to and dose of sunitinib malate you receive will depend on when you join this study. Three 3 dose levels of sunitinib malate will be tested. The first group of participants will receive the lowest dose of sunitinib malate. The next group enrolled will receive a higher dose of sunitinib malate, if no intolerable side effects were seen. 