Active clinical trials for "Gastrointestinal Stromal Tumors"

RATIONALE: Surgery may be an effective treatment for liver metastasis from a gastrointestinal stromal tumor. PURPOSE: This phase II trial is studying how well surgery works in treating patients with liver metastasis from a gastrointestinal stromal tumor.

The objective is to evaluate the efficacy and safety of AB1010 at 7.5 mg/kg/day in the treatment of non pre-treated, inoperable patients with locally advanced/metastatic GIST.

This study will examine the effect of BIIB021 on GIST growth and metabolism.

The mainstay of therapy for GISTs is surgical resection, however, recurrence is almost inevitable in high-risk tumors and secondary surgery or other salvage therapy has yielded poor outcome. The median survival for patients with unresectable or metastatic GIST is approximately 20 months, and for patients with local recurrence it is 9 to 12 months. Responses to chemotherapy have been at best 5%. The introduction of imatinib has dramatically changed the prognosis of these patients yielding response rates between 41% and 71% and an overall clinical benefit (tumor responses plus stable disease) ranging between 73% and 90%. However, resistance to imatinib may develop and represents a further clinical challenge. Sunitinib has recently been approved by the FDA for patients whose disease has progressed or who are intolerant to imatinib therapy. Patients with tumor progressing on sunitinib or another 2nd line agent have limited therapeutic alternatives. Reinstitution of imatinib, if possible, is considered an acceptable option for these patients because it may slow the rate of disease progression even in the setting of prior imatinib failure; however a more optimal 3rd line treatment is needed. AMN107 is a novel aminopyrimidine, available as an oral formulation that is ATP -competitive inhibitor of BCR-ABL,more potent than Imatinib. It inhibits proliferation and autophosphorylation of 32 out of 33 BCR-ABL point mutations. In addition AMN107 also inhibits PDGFRα,PDGFRβ, and KIT. Preliminary data from an ongoing Phase I study in imatinib-resistant GIST patients (CAMN107A2103) indicate that AMN107 alone (400 mg BID) and in combination with imatinib (imatinib 400 mg BID plus AMN107 200 mg QD and 400 mg QD) is well tolerated in this pre-treated patients.

The purpose of this multicenter, single-arm, Simon two-stage, phase II trial is to determine the efficacy and safety of everolimus in combination with Imatinib mesylate in patients with previously treated, histologically proven GIST whose disease has recurred or progressed while receiving 400 mg/day of Imatinib mesylate at any time during at least a 2 months' treatment period.

This phase II trial studies how well linsitinib works in treating younger and adult patients with gastrointestinal stromal tumors. Linsitinib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth.

The purpose of this study is to evaluate the antitumor activity of pazopanib in patients with metastatic and/or locally advanced unresectable Gastrointestinal Stromal Tumors (GIST) resistant to imatinib and sunitinib. This is a phase II, randomized, multicentre study.

This is a study using sunitinib for patients ending treatment on a previous sunitinib malate protocol to continue to receive sunitinib. The patient must have been enrolled in one of the following studies: A6181030, A6181064, A6181078, A6181087, A6181094, A6181107, A6181108, A6181110, A6181111, A6181112, A6181113, A6181120, A6181126 and A6181170. Other Pfizer sponsored sunitinib studies may be included in the future.

Gastrointestinal stromal tumors (GISTs) are associated with a dismal prognosis in localized and advanced phase with a major resistance to conventional chemotherapy agents. Virtually all malignant GISTs actually harbor activating mutations of the KIT pathway in the tumor cells, leading to ligand-independent activation of KIT tyrosine kinase activity and tumor growth in vitro. Glivec® inhibits KIT and exerts a major antitumor efficacy in vivo in patients with advanced GIST. Glivec® is generally pursued until progression or intolerance. The optimal duration of treatment with Glivec® remains unknown. The objective of this study is to determine the feasibility of Glivec® treatment interruption with reintroduction at progression in GIST patients.

The rationale is to assess the clinical and biological activity of Imatinib and to compare the data with historic data. Additionally this study has been designed to gain more experience with the treatment of GIST in several Central and Eastern European Countries.