Evaluation of Patients With Bulky GIST Using Sunitinib
The primary purpose of this study is to determine if oral (mouth) delivery prior to tumor removal in patients with gastrointestinal stromal tumor (GIST) results in tumor shrinkage allowing for successful surgery. Therapy will be administered orally and the response of the tumor will be assessed using CTs or MRIs.
|Study Design:||Endpoint Classification: Safety/Efficacy Study
Intervention Model: Single Group Assignment
Masking: Open Label
Primary Purpose: Treatment
|Official Title:||Pilot Trial of Neoadjuvant Sunitinib in Patients With Bulky GIST|
- To characterize the safety/tolerability of sunitinib given neoadjuvantly. [ Time Frame: ~24 months ] [ Designated as safety issue: Yes ]
- To determine the degree of alteration in diffusion and vascular kinetics in GIST tumors receiving sunitinib therapy. [ Time Frame: ~24 months ] [ Designated as safety issue: No ]
- To describe any evidence of anti-tumor efficacy and correlate it with any alteration of vascular kinetics/diffusion and cKIT or PDGFr mutation. [ Time Frame: ~24 months ] [ Designated as safety issue: No ]
|Study Start Date:||October 2009|
|Estimated Study Completion Date:||May 2013|
|Primary Completion Date:||May 2012 (Final data collection date for primary outcome measure)|
Experimental: Sunitinib pill
Patients will receive six weeks of sunitinib and then subsequently continue for an additional 6 weeks if the evaluation at 6 weeks shows stable disease or objective response. Restaging CT scans will be performed again after 12 weeks of therapy to determine response in preparation for surgical resection anticipated to occur around week 14-16.
All patients will receive sunitinib 37.5 mg p.o. daily for up to 12 weeks to be taken orally.
Other Name: SUTENT (Sunitinib)Procedure: Surgery
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.
Gastrointestinal stromal tumor (GIST) is a rare cancer affecting primarily the digestive tract and sometimes abdominal cavity in adults. The most common site is the stomach followed by the duodenum and small intestine.
Surgery is the mainstay of therapy for GIST patients whose primary tumor is felt to be resectable. Prior to the introduction of Gleevec, patients with inoperable GIST had essentially no therapeutic options. However, sunitinib trials offer options to patients who are Gleevec resistant or have intolerant GIST. Clinical benefit has been demonstrated with positive results in several sunitinib studies of varying phases.
|United States, Alabama|
|University of Alabama at Birmingham|
|Birmingham, Alabama, United States, 35294|
|Principal Investigator:||James A. Posey, M.D.||University of Alabama at Birmingham|