View clinical trials related to Gastrointestinal Stromal Tumors.
Filter by:The study investigates response assessment of gastrointestinal stromal tumors using Dual Energy CT (DECT) in patients undergoing targeted therapy with a TKI Inhibitor.
This is a 2-arm, randomized, placebo-controlled, double-blind, international, multicenter study comparing the efficacy of ripretinib (DCC-2618) to placebo in patients who have received treatment with prior anticancer therapies. Prior anticancer therapies must include imatinib, sunitinib, and regorafenib (3 prior therapies). Approximately 120 patients were randomized in a 2:1 ratio to ripretinib 150 mg QD or placebo
Patients with gastric gastrointestinal stromal tumors will receive robotic resection.
The purpose of this study is to test the safety and tolerability of the combination of pexidartinib and MEK162. This study tests different doses of pexidartinib in combination with different doses of MEK162 to see which dose combination of these drugs is safe and best tolerated in people.
The survey is a phase IV, prospective randomized clinical trial to determine whether an immunomodulating nutrient-enriched diet compared to a standard diet can improve nutritional status and reduce postoperative infection and surgery-induced immune suppression in patients with gastric cancer or GIST undergoing major surgery in a single medical center.
Tyrosine-kinase Inhibitors (TKI) resistance in gastrointestinal stromal tumours (GIST) is a common problem after prolonged treatment periods. The main objectives of this monocentric diagnostic Phase I/IIa study are safety and tolerability, pharmacokinetics and dosimetry of 68Ga-NeoBomb1 in GIST patients. The rationale behind this study is to improve diagnostic accuracy in GIST via positron-emission tomography/computer tomography (PET-CT) with a focus on TKI-resistant subtypes. Better detection, classification and definition of lesion extent are expected from the use of 68Ga-NeoBOMB1.
Randomized, placebo-controlled, phase III study of regorafenib 160 mg once daily on intermittent dosing schedule of 3 weeks on treatment followed by 1 weeks off demonstrated the significant benefit of regorafenib in terms of PFS in patients with GISTs who had failed to both imatinib and sunitinib. However, there are concerns that tumors and tumor-related symptoms may be progressed during off treatment period. Investigators hypothesize that continuous dosing schedule of regorafenib might be feasible and effective to prevent disease flare on off-treatment period. Based on the results of previous dose escalation study for continuous regorafenib dosing, we investigate the 100 mg daily dose of regorafenib in patients with TKI-refractory GISTs.
The exact incidence of subepithelial tumors (SETs) in the gastrointestinal (GI) tract is unknown, but the prevalence of gastric SETs detected during routine esophagogastroduodenoscopy is 0.36%. GI SETs may include leiomyoma, GI stromal tumor (GIST), schwannoma, lipoma, cyst, or ectopic pancreas. Surgical resection is the principal diagnostic and therapeutic method for SETs, especially for large and symptomatic ones. Preoperative pathological diagnosis of SETs may facilitate clinical decision making, but conventional endoscopic forceps biopsy does not yield adequate amounts of subepithelial tissue for definitive diagnosis. Although endoscopic ultrasonography (EUS) is the best imaging modality for the evaluation of SETs, it cannot substitute histopathological diagnosis. EUS-guided fine-needle aspiration (EUS-FNA) may provide adequate amounts of tissue for the diagnosis of SETs, but it does not always afford adequate samples for immunohistochemical analysis because of the often small number of cells obtained by aspiration. Since some SETs, especially GI mesenchymal tumors such as GIST or schwannoma, have varied morphologic appearances, and diagnosis using a small biopsy is not straightforward, immunohistochemical analysis is strongly advisable, if not essential. EUS-guided Trucut biopsy (EUS-TNB) may overcome the limitations of EUS-FNA in procuring sufficient core tissue specimens. Although EUS-TNB is more accurate than EUS-FNA for diagnosing GI mesenchymal tumors, the rigidity of its 19-gauge (G) caliber and the mechanical friction of the firing mechanism produced by the torqued echoendoscope limit its use for SETs located in the gastric antrum and duodenum. Therefore, a needle facilitating adequate histological core sampling with easy maneuverability needs to be established. A 19G EUS-guided fine-needle biopsy (EUS-FNB) device with ProCore reverse-bevel technology was recently introduced. A multicenter study revealed that histological samples could be successfully obtained using this needle in most patients having GI SETs, with a diagnostic accuracy of >80%.10 However, because of technical difficulties with this needle in the gastric antrum and duodenum, the same FNB device was recently developed in a 20 G platform with coiled sheath. This prospective, multicenter study aimed to evaluate feasibility, yield, and diagnostic accuracy of a newly developed 20 G ProCore needle with coiled sheath in patients with GI SETs.
This randomized phase II trial studies how well nivolumab with or without ipilimumab works in treating patients with gastrointestinal stromal tumor that has spread to other places in the body or cannot be removed by surgery. Monoclonal antibodies, such as nivolumab and ipilimumab, interfere with the ability of tumor cells to grow and spread.
The treatment of advanced gastrointestinal stromal tumours (GIST) has shifted since the arrival of targeted therapies. Imatinib is an active multikinase inhibitor that mainly targets C-kit tyrosine-kinase receptors and the platelet-derived growth factor receptor. Imatinib use has been validated for adjuvant and palliative therapy settings. Imatinib is generally well-tolerated and known to improve performance status but up to 16% grades 3-4 toxicities, leading to at least 40% withdrawals, have been reported. Recently, in oncology, sarcopenia was shown to be a predictor of severe toxicity patients included in phase 1 trials, suggesting that it should be considered an inclusion criterion for such studies. Sarcopenic patients had low performance status, shorter survival, more chemotherapy toxicities and post-operative infections, and longer post-operative hospitalization times. In addition, exposure to tyrosine-kinase inhibitors (e.g. sorafenib or sunitinib) has been associated with dose-limiting toxicity (DLT) in patients with renal cell or hepatocellular carcinomas. Computed tomography (CT) scans acquired during routine care have been validated as an accurate and robust imaging technique to evaluate sarcopenia in cancer patients.