View clinical trials related to Stomach Neoplasms.
Filter by:Background: Gastrointestinal neuroendocrine tumors (GI NET) are a type of cancer that affects the stomach and intestines; pheochromocytoma/paragangliomas (PPGL) are tumors that grow in or near the adrenal glands. Both of these types of tumor have high levels of a protein called somatostatin receptors (SSTR) on their surfaces. Researchers want to test a treatment that targets SSTR. Objective: To test a drug ([212Pb]VMT-alpha-NET) in people with GI NET or PPGL. The drug has 2 components: a protein to bind to SSTR and a radioactive agent to kill the cancer cells. Eligibility: Adults aged 18 years or older with GI NET or PPGL tumors that have spread and cannot be removed with surgery. Design: Participants will be screened. They will have a physical exam, with imaging scans, blood tests, and tests of their heart function. [212Pb]VMT-alpha-NET is given through a tube attached to a needle inserted into a vein (infusion). Treatment will be given in four 8 week cycles. Participants will receive the drug on the first day of each cycle. They will remain in the clinic at least 4 hours after each infusion and may nee to stay in th hospital for up to 48 hour for monitoring and testing. They will have blood tests every week of each cycle. Some participants will also get a related study drug ([203Pb]VMT-alpha-NET). They will receive this drug a few days before the first 2 cycles. At 4, 24, and 48 hours after each infusion, they will have whole body scans. These scans will show where the study drug went in their body. Follow-up visits will continue for 10 years....
Gastric cancer (GC) with peritoneal metastasis has a poor prognosis and short survival. In recent years, heat intraperitoneal perfusion chemotherapy (HIPEC) has gained better efficacy in the treatment of peritoneal metastases of many malignant tumors, including GC with peritoneal metastasis. The use of immune checkpoint inhibitors (ICIs) in the treatment of advanced GC has made significant progress in recent years. And studies showed that patients who were responded to immunotherapy combined with chemotherapy as the first-line treatment were able to achieve significant survival benefit after radical resection. However, whether HIPEC combined with immunotherapy for peritoneal metastatic gastric cancer improves the R0 resection rate and prolongs survival time is currently unclear. Therefore, we conducted this prospective multicenter clinical trial to explore the effective dose and safety of the combination of systemic chemotherapy, HIPEC, anti-PD-1 and anti-HER-2 therapy, which will provide a clinical basis for the treatment of advanced GC.
Recently, growing evidences have suggested that immunotherapy represents a promising treatment option for the neoadjuvant treatment of locally advanced mismatch repair-deficient (dMMR)/microsatellite instability-high (MSI-H) gastric cancer. In this study, we will explore the efficacy and safety of sintilimab and LDRT in the neoadjuvant treatment for locally advanced dMMR/MSI-H G/GEJ cancer.
This clinical study aims to be used to implement and validate the AIDA tool in two phases: - Phase 1: Risk stratification and personalised recommendations & Model development - Phase 2: Mechanistic Model (Bioresource) development & testing
Purpose of the study To evaluate whether the clinical efficacy of submucosal injection of indocyanine green tracer laparoscopic gastric cancer lymph node dissection is superior to that of laparoscopic gastric cancer lymph node dissection without indocyanine green tracer in 3D fluorescence laparoscopic mode in patients with gastric adenocarcinoma (cT1-4a, N-/+, M0). To observe the role of submucosal injection of ICG for tumor localization in fluorescence 3D fluorescence laparoscopic surgery and the application of lymph node dissection in laparoscopic radical surgery for gastric cancer. Study design. Multicenter, randomized, open, parallel-controlled, superiority design. Subgroups Group A (experimental group): indocyanine green tracer 3D laparoscopic gastric cancer lymph node dissection group Group B (control group): no indocyanine green tracer 3D laparoscopic gastric cancer lymph node dissection group. Study population Patients who met all the inclusion criteria and did not fall into any of the exclusion criteria were eligible to enter this study. Randomization Patients were first evaluated preoperatively to determine that they could receive laparoscopic radical gastric cancer treatment and receive endoscopic indocyanine green labeling. Once the enrolled cases were determined to meet the admission criteria after laparoscopic exploration, they could be enrolled in this study for randomization. The central dynamic, stratified zone randomization method was used in this study, and the control factors considered were age, tumor site, and preoperative stage. Given the number of seeds and the length of the zones, SAS 9.2 programming was applied to generate the treatment allocation corresponding to the running number 484, which was deposited in the data center. A person at the participating research center was responsible for sending the enrolled case information (age, tumor site, and preoperative stage) to the randomization implementation department at the data center by email, phone, or SMS, and the contact person at each respective research center confirmed that the patient met the enrollment criteria, contacted the contact person for the assigned case in this study, and determined the enrollment of the case by further analyzing the case information, and at the same time, notified the contact person at the research center where the case was located The contact person of the research center where the case is located will be notified at the same time. Competitive enrollment was used in this study. Blinding.
The aim of this project is to study the presence of cancer-associated adipocytes in oesogastric cancers and their possible links with myosteatosis. This research project has a retrospective component, the aim of which is to analyse the body component based on imaging in patients with oesogastric neoplasia in order to determine the incidence of myosteatosis and to study the relationship with oncological and prognostic data. The second part of the project is prospective and will collect biological material (skeletal muscle, adipose tissue, tumour, blood) for histological, molecular and genomic analyses and will analyse muscle function in patients with oesogastric cancer. It will address the role of adipocytes in the tumour microenvironment of oesogastric cancer, focusing on their interactions with the observed muscle myosteatosis and prognosis. In the future, it will help to identify signalling pathways, targets and patients who could benefit from appropriate treatment.
This clinical trial evaluates the usefulness of various risk assessment tests, including Helicobacter pylori (H. pylori) breath testing, questionnaires, and endoscopies for identifying participants at high risk for stomach cancer. H. pylori is a bacteria that causes stomach inflammation and ulcers in the stomach. People with H. pylori infections may be more likely to develop cancer in the stomach. H. pylori breath testing can help identify the presence of H. pylori infection in a participant and help identify if the participant may be at a higher risk of developing stomach cancer. An endoscopy uses a thin, flexible lighted tube that is inserted inside the esophagus, stomach, and first part of the small intestine. This allows the doctor to see and look for abnormal areas that may need to be biopsied. Risk assessment including H. pylori evaluation, questionnaires, and endoscopies may help identify participants at high risk for stomach cancer and may be a useful screening tool for earlier stomach cancer diagnosis.
We plan to initiate a prospective, multicenter, randomized, double-blind, placebo-controlled phase II study, recruiting 198 patients with advanced gastric/gastroesophageal junction adenocarcinoma who have not received prior treatment. Randomly divided into two groups, one group is the group of fecal microbiota transplantation(FMT)+SOX+Sintilimab, and the other group is the group of SOX+Sintilimab. Compare the 2-year OS rates of the two groups to verify whether the addition of FMT to first-line treatment can improve the prognosis of gastric cancer patients.
A complete omentectomy is typically recommended during radical total gastrectomy for gastric cancer, though its impact on survival remains unclear. This study aimed to assess the frequency and risk factors of metastases in the greater omentum in gastric cancer patients undergoing gastrectomy. It will involve a single prospective cohort of consecutive patients who underwent total gastrectomy with complete en bloc omentectomy and modified D2 lymphadenectomy. Post-surgery, the omentum will dissect from the gastrectomy specimen beyond the gastroepiploic vessels and examine separately for pathological assessment. The primary outcome will focus on the detection of omental metastases.
In this study, investigators utilize a radiopathomics integrated Artificial Intelligence (AI) supportive system to predict tumor response to neoadjuvant chemoradiotherapy (nCRT) before its administration for patients with locally advanced gastric cancer (LAGC). By the system, the postoperative tumor regression grade (TRG) of the participants will be identified based on the radiopathomics features extracted from the pre-nCRT Enhanced CT and biopsy images. The ability to predict TRG will be validated in this multicenter, prospective clinical study.