Inclusion Criteria:

- Histopathologically-proven diagnosis of angiosarcoma, epithelioid sarcoma-like
hemangioendothelioma or Kaposi's sarcoma. Both HIV-Related and HIV-Unrelated
Kaposi's patients will be included in the trial. Patients with HIV-Related Kaposi's
will be required to have a CD4 count >50 cells/µL and Viral Load < 50 copies/ml.
They will also need to be willing to take HAART. They can either have stable
Kaposi's on HAART for at least 3 months or have progression of their Kaposi's after
having been on HAART for at least 10 weeks.

- Not amenable to surgery, radiation, or combined modality treatment with curative
intent.

- Evidence of unidimensionally measurable disease by conventional radiographic
techniques. In patients with Kaposi's sarcoma, skin lesions at least 10 mm will be
considered measurable disease. Bone lesions, ascities, or lymphangitis of skin or
lung are not considered measurable.

- No more than 2 prior chemotherapy regimens for metastatic or unresectable disease.
Patients may have received prior bevacizamab or other Tyrosine Kinase Inhibitors,
excluding sunitinib. Treatment with bevacizamab or other Tyrosine Kinase Inhibitors
will not be counted as prior chemotherapy regimens.

- Four weeks since prior chemotherapy, surgery or radiation therapy and resolution of
all toxic effects of any prior therapy, surgical procedure or radiation.

- ECOG performance status 0-2.

- Age 18 or greater.

Exclusion Criteria:

- Patients with a "currently active" second malignancy other than non-melanoma skin
cancer or carcinoma in situ of the cervix are not to be registered. Patients who are
not considered to have a "currently active" malignancy if they have completed therapy
and are considered by their physician to be at less than 30% risk of relapse.

- No areas of measurable disease by CT or MRI.

- Any of the following within the 6 months prior to study drug administration:
myocardial infarction, severe/unstable angina, coronary/peripheral artery bypass
graft, symptomatic congestive heart failure, or cerebrovascular accident. or
transient ischemic attack, or pulmonary embolism.

- Ongoing cardiac dysrhythmias, atrial fibrillation or prolongation of the QTc interval
to >450 msec for males of > 470 msec for females. Medications that may prolong the QT
intervals should be discontinued or switched to another medication prior to starting
Sutent unless determined by the investigator to be absolutely necessary.

- Pregnancy or breastfeeding.

- Other severe acute or chronic medical or psychiatric condition or laboratory
abnormality that may increase the risk associated with the study participation or
study drug administration.

- Major surgery or radiation therapy within 4 weeks of starting the study treatment.