Conditions: Gastrointestinal Stromal Tumor
Keywords: GIST Refractory Gastrointestinal Stromal Tumor
Allocation: NA | Intervention model: SINGLE_GROUP
Enrollment: 25
Healthy volunteers: no

Brief summary:
This is a multicenter, non-randomized, single agent, Phase II study of AUY922 in patients with refractory Gastrointestinal Stromal Tumor (GIST). The primary endpoint of this study is to determine progression-free survival (PFS) for patients with GIST receiving AUY922 intravenously (IV) on Days 1, 8, and 15 of a 21-day treatment cycle with restaging at 6 and 12 weeks and then every 9 weeks thereafter. Patients may continue treatment until evidence of disease progression.

Detailed description:
Gastrointestinal stromal tumors (GIST) are common sarcomas that arise in the gastrointestinal tract. Sunitinib (Pfizer) and imatinib (Novartis) are FDA-approved for treatment of patients with GIST. However, patients with advanced or refractory GIST who are resistant to these agents eventually experience disease progression or death. Heat shock protein-90 (Hsp90) is a substance found in various malignancies that encourages tumor cells to grow and survive. As an inhibitor of Hsp90, AUY922 may decrease growth of tumor cells that were resistant to prior therapies. This study investigates AUY922 monotherapy as treatment for patients who either progressed on, or were resistant to, imatinib and sunitinib.

Arms:
arm 1: None

Interventions: intervention 1: AUY922
Intervention descriptions: intervention 1: AUY922: 70 mg/m2 IV over 60 minutes on Days 1, 8, and 15 of each cycle. Treatment cycles will be repeated every 21 days. Patients will be evaluated for response at 6 and 12 weeks and then every 9 weeks (i.e., every 3 cycles) thereafter. Patients may continue treatment until evidence of disease progression.

Protocol document: