Study of Efficacy and Safety of Sunitinib Given on an Individualized Schedule

The starting dose will be 50 mg Sunitinib on the 28/14 schedule. In patients that develop ≥ grade-2 toxicity after 2 weeks, therapy will be held for 7 days or resolution before continuing therapy according to the 1st dose/schedule change. In patients that do not develop ≥ grade-2 toxicity, therapy will continue for 1-2 weeks or until ≥ grade-2 toxicity. In patients that develop \> grade-2 toxicity after less than 4 weeks, therapy will be held for 7 days or before continued according to the 1st dose/schedule change. Patients that do develop grade-2 toxicity (but no more) on the 50 mg 28/14 schedule, will remain on schedule but the time off therapy will be reduced to 7 days if toxicity has resolved after a 7-day break. Patients that develop ≤ grade-1 toxicity on the 50 mg 28/14 schedule, will be dose escalated according to protocol.