View clinical trials related to Gastrointestinal Stromal Tumors.
Filter by: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.
Sub epithelial lesions (SELs) of the gastrointestinal (GI) tract are commonly identified during routine endoscopy. Most of these lesions are benign. However because there is the potential for malignant transformation it is important to correctly identify the lesion in order to determine if any further therapy and/or surveillance is necessary for the patient, particularly for gastrointestinal stromal tumors (GISTs). Obtaining a definitive diagnosis for SELs is often difficult since biopsies of the normal overlying surface mucosal layer are typically normal. EUS-FNA is the standard method by which a biopsy-proven diagnosis is obtained for most SEL's. However, the yield for a definite diagnosis from EUS-FNA for SELs is often suboptimal. Recently a new biopsy method, called "single incision needle-knife" (SINK) was introduced that may prove more useful in determining a definitive diagnosis. Furthermore, recent advances in core biopsy needles for EUS offer the hope for improved outcomes with EUS-guided fine-needle biopsy (FNB). However, it remains unclear whether superior diagnostic outcomes are obtained using the new SINK biopsy method or using new EUS-FNB core needles.
This phase II trial studies nivolumab and ipilimumab in treating patients with rare tumors. Immunotherapy with monoclonal antibodies, such as nivolumab and ipilimumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. This trial enrolls participants for the following cohorts based on condition: 1. Epithelial tumors of nasal cavity, sinuses, nasopharynx: A) Squamous cell carcinoma with variants of nasal cavity, sinuses, and nasopharynx and trachea (excluding laryngeal, nasopharyngeal cancer [NPC], and squamous cell carcinoma of the head and neck [SCCHN]) B) Adenocarcinoma and variants of nasal cavity, sinuses, and nasopharynx (closed to accrual 07/27/2018) 2. Epithelial tumors of major salivary glands (closed to accrual 03/20/2018) 3. Salivary gland type tumors of head and neck, lip, esophagus, stomach, trachea and lung, breast and other location (closed to accrual) 4. Undifferentiated carcinoma of gastrointestinal (GI) tract 5. Adenocarcinoma with variants of small intestine (closed to accrual 05/10/2018) 6. Squamous cell carcinoma with variants of GI tract (stomach small intestine, colon, rectum, pancreas) (closed to accrual 10/17/2018) 7. Fibromixoma and low grade mucinous adenocarcinoma (pseudomixoma peritonei) of the appendix and ovary (closed to accrual 03/20/2018) 8. Rare pancreatic tumors including acinar cell carcinoma, mucinous cystadenocarcinoma or serous cystadenocarcinoma. Pancreatic adenocarcinoma is not eligible (closed to accrual) 9. Intrahepatic cholangiocarcinoma (closed to accrual 03/20/2018) 10. Extrahepatic cholangiocarcinoma and bile duct tumors (closed to accrual 03/20/2018) 11. Sarcomatoid carcinoma of lung 12. Bronchoalveolar carcinoma lung. This condition is now also referred to as adenocarcinoma in situ, minimally invasive adenocarcinoma, lepidic predominant adenocarcinoma, or invasive mucinous adenocarcinoma 13. Non-epithelial tumors of the ovary: A) Germ cell tumor of ovary B) Mullerian mixed tumor and adenosarcoma (closed to accrual 03/30/2018) 14. Trophoblastic tumor: A) Choriocarcinoma (closed to accrual) 15. Transitional cell carcinoma other than that of the renal, pelvis, ureter, or bladder (closed to accrual) 16. Cell tumor of the testes and extragonadal germ tumors: A) Seminoma and testicular sex cord cancer B) Non seminomatous tumor C) Teratoma with malignant transformation (closed to accrual) 17. Epithelial tumors of penis - squamous adenocarcinoma cell carcinoma with variants of penis (closed to accrual) 18. Squamous cell carcinoma variants of the genitourinary (GU) system 19. Spindle cell carcinoma of kidney, pelvis, ureter 20. Adenocarcinoma with variants of GU system (excluding prostate cancer) (closed to accrual 07/27/2018) 21. Odontogenic malignant tumors 22. Pancreatic neuroendocrine tumor (PNET) (formerly named: Endocrine carcinoma of pancreas and digestive tract.) (closed to accrual) 23. Neuroendocrine carcinoma including carcinoid of the lung (closed to accrual 12/19/2017) 24. Pheochromocytoma, malignant (closed to accrual) 25. Paraganglioma (closed to accrual 11/29/2018) 26. Carcinomas of pituitary gland, thyroid gland parathyroid gland and adrenal cortex (closed to accrual) 27. Desmoid tumors 28. Peripheral nerve sheath tumors and NF1-related tumors (closed to accrual 09/19/2018) 29. Malignant giant cell tumors 30. Chordoma (closed to accrual 11/29/2018) 31. Adrenal cortical tumors (closed to accrual 06/27/2018) 32. Tumor of unknown primary (Cancer of Unknown Primary; CuP) (closed to accrual 12/22/2017) 33. Not Otherwise Categorized (NOC) Rare Tumors [To obtain permission to enroll in the NOC cohort, contact: S1609SC@swog.org] (closed to accrual 03/15/2019) 34. Adenoid cystic carcinoma (closed to accrual 02/06/2018) 35. Vulvar cancer (closed to accrual) 36. MetaPLASTIC carcinoma (of the breast) (closed to accrual) 37. Gastrointestinal stromal tumor (GIST) (closed to accrual 09/26/2018) 38. Perivascular epithelioid cell tumor (PEComa) 39. Apocrine tumors/extramammary Paget's disease (closed to accrual) 40. Peritoneal mesothelioma 41. Basal cell carcinoma (temporarily closed to accrual 04/29/2020) 42. Clear cell cervical cancer 43. Esthenioneuroblastoma (closed to accrual) 44. Endometrial carcinosarcoma (malignant mixed Mullerian tumors) (closed to accrual) 45. Clear cell endometrial cancer 46. Clear cell ovarian cancer (closed to accrual) 47. Gestational trophoblastic disease (GTD) 48. Gallbladder cancer 49. Small cell carcinoma of the ovary, hypercalcemic type 50. PD-L1 amplified tumors 51. Angiosarcoma 52. High-grade neuroendocrine carcinoma (pancreatic neuroendocrine tumor [PNET] should be enrolled in Cohort 22; prostatic neuroendocrine carcinomas should be enrolled into Cohort 53). Small cell lung cancer is not eligible (closed to accrual) 53. Treatment-emergent small-cell neuroendocrine prostate cancer (t-SCNC)
Regorafenib is a novel oral multi-kinase inhibitor which targets angiogenic, stromal and oncogenic receptor tyrosine kinases. It is currently registered for GIST and mCRC. When regorafenib is co-administered with an acid suppressive agent, the intra-gastric pH increases, and as a result the equilibrium of ionized/non-ionized regorafenib may shift to the less soluble non-ionized form which reduces regorafenib bioavailability and exposure. Since proton pump inhibitors (PPIs) are often used during regorafenib therapy, this drug-drug interaction (DDI) confronts pharmacists and oncologists with challenges in clinical practice. In this study the investigators will therefore evaluate the impact of PPI-induced intra-gastric pH elevation on regorafenib pharmacokinetics in patients with GIST and mCRC.
The purpose of this study is to determine whether dasatinib is effective and safe in the treatment of refractory metastatic gastrointestinal stromal tumor
Gastric stromal tumor is a gastrointestinal mesenchymal tumor with malignant differentiation potential, the incidence increased year by year. The surgical resection is the primary treatment for it. Although laparoscopic GIST resection has many benefits，due to in lack of the delicate sense of touch, it could lead to the incomplete resection and disorders of digestion. More than 33% of postoperative patients have the gastric dysfunction. Laparoscopic endoscopy combined surgery is different from the past technology. It is a new radical resection of GIST presented by Japanese scholars. LECS resects the tumor completely by laparoscopy with the help of the precise positioning and guidance of endoscopy .This method conforms to the idea of the modern minimally invasive surgery, and avoids many problems，such as incomplete resection and disorders of digestion caused by excessive tissue resection. our team will spearhead the GIST treatment of LECS. First of all, the investigators will collect 120 cases of GIST patients, randomly assigned for the laparoscopic group, the LECS, single-arch the LECS surgical treatment. Secondly, to analyzing the basic treatment and follow-up data, including the operation time, blood loss, the number of transfer laparotomy, the number of cut edge positive, the distances of cut edge away from the tumor edge, the cases of anastomotic fistula bleeding, stenosis, average such confinement, the meal time, cost of treatment, tumor recurrence rate, the presence of residual stomach, upset stomach and frequency, reflux esophagitis, bile reflux gastritis and other indicators.The purpose of this subject is to observe the effectivity and safety of LECS and single-arch the LECS, invent serval LECS equipment patents and provide some references for LECS applying to the minimally invasive surgery of the digestive tract tumor and multidisciplinary treatment mode .
This pilot research trial studies the long term effects of tyrosine kinase inhibitor therapy on ovarian reserve and fertility in patients with chronic myeloid leukemia or gastrointestinal stromal tumor. Studying ovary imaging, ovarian reserve markers, and hormone levels from patients receiving tyrosine kinase inhibitor therapy may help doctors learn more about the effects of tyrosine kinase inhibitor therapy on ovarian function and fertility.
Recent preclinical study has suggested a potential possibility that imatinib might promote tumor growth in the presence of secondary resistance mutations [10]. This result imply that intermittent dosing schedule of imatinib rechallenge might be better than continuous dosing schedule in terms of controlling tumors harboring secondary resistance mutations. In addition, in these heavily pretreated patients, even mild grade of toxicity may significantly impair quality of life, and intermittent dosing schedule may have an advantage in this context. Therefore, investigators hypothesize that intermittent dosing schedule of imatinib rechallenge might be feasible and effective in patients with TKI-refractory GISTs. This study will assess the feasibility of intermittent imatinib dosing schedule in patients with GISTs who had failures from both imatinib and sunitinib.