Evaluation of Patients With Bulky GIST Using Sunitinib

All patients will receive sunitinib 37.5 mg p.o. daily for up to 12 weeks to be taken orally.

Following sunitinib therapy, patients will be evaluated for surgery. It is anticipated that the quality of response will allow for complete resection of residual tumor. Surgical resection, if eligible, will occur around week 14-16.