View clinical trials related to Gastrointestinal Stromal Tumors.
Filter by:Activating mutations of the kinases CKIT or PDGFRA can be detected in 90% of cases by DNA sequence analysis of a pathological specimen. These mutated genomic DNA fragments are highly specific for the tumor and are released by the tumor into the circulation. Allele-specific PCR can be used to specifically amplify and quantify mutated CKIT and PDGFR DNA fragments. The current trial aims to evaluate whether tumor DNA carrying mutations for CKIT and PDGFRA can be detected and quantified in the plasma of patients with active GIST, and whether detection can be correlated with the clinical course of disease either under therapy or in progressive disease irrespective of current therapy.
Retrospective correlation of clinical outcomes data with mutational status in GIST subjects treated with sunitinib.
With discovery of KIT mutations and the advent of KIT tyrosine kinase inhibitor imatinib (GlivecTM, Novartis), there has been substantial improvement in overall survival in patients with advanced and/or metastatic gastrointestinal tumors (GIST). Recently, sunitinib (SuteneTM, Pfizer) showed activity as second-line therapy in GIST patients after failure with imatinib. However, virtually all patients will eventually progress or become intolerable after the first-line imatinib and the second-line sunitinib. Dovitinib (TKI258, Novartis) is a multi-kinase inhibitor. TKI258 is a potent inhibitor of the VEGFR 1, 2, and 3, FGFR1, 2 and 3, PDGFRβ, Kit, RET, TrkA, CSF 1R, and FLT3 with inhibitory concentration 50% (IC50s) of less than 40nM. Stem cell factor (SCF) also termed KIT ligand, or steel factor has been shown to modulate tumor angiogenesis. In cultured human endothelial cells and Kit expressing cancer cells, TKI258 inhibits VEGF- and SCF-stimulated mitogenesis. .
The objective of this study is to evaluate the effect of a perioperative nutrition strategy using oral nutritional supplements (ONS) on postoperative complications and improvement in body weight in malnourished patients who underwent gastrectomy.
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.
It is well known that substantial interindividual variability of CYP3A4/1A2-phenotype activity is an important contributor to individual differences in the sensitivity to the frequently used tyrosine kinase inhibitors sunitinib and erlotinib. This study tests the potential for CYP-phenotyping to predict individual pharmacology and derive dosing algorithms for more tailored treatment of these drugs.
Children and young adults with gastrointestinal stromal tumors (GIST) will be treated with sunitinib. The safety (including pharmacokinetics) and tolerability of sunitinib will be studied in these patients. In addition, tumor responses and overall survival will be assessed.
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.
The purpose of this study is to evaluate the tumor response of stable disease (SD) partial response, or complete response (according to RECIST 1.1 criteria) at 12 weeks in patients with Gastrointestinal Stromal Tumors (GIST) harboring PDGFRα mutations and patients with GIST not harboring PDGFRα mutations.
The purpose of this study is to investigate if an investigational drug called AT13387 is active against Gastrointestinal Stromal Tumor (GIST) that is resistant to other treatments, and to understand more about the safety of AT13387. Most subjects in the study will receive AT13387 along with another drug called imatinib (Gleevec). Imatinib is a standard (approved) drug for treating patients with GIST. Some patients may receive AT13387 on its own. As a result, we shall begin to understand the effects of AT13387 given on its own and when combined with imatinib.We shall also find out more about the side-effects of AT13387, and more about how the body breaks down (metabolizes) AT13387.