Active clinical trials for "Stomach Neoplasms"

It is very significant that assessing staging in gastric cancer patients before surgery, furthermore, determining the optimize surgical strategy ,predict the the efficacy of neoadjuvant therapy for patients. For patients who are ineffective in neoadjuvant therapy, surgery will be more meaningful. It has been reported that the application of CT(computed tomography,CT) and MR(magnetic resonance,MR) in staging of gastric cancer, but not in predicting clinical response to neoadjuvant therapy for gastric cancer. Only a few studies focused on T staging using conventional MRI in gastric cancer, however , relatively new sequences in the chest deserve widely used. To develop a pre-treatment evaluation methods for TN staging in patient with gastric cancer by utilization of the new imaging methods (T2-TSE-BLADE,T2 maps, StarVIBE, iShim-DWI and high resolution CT). By analysing the relationship between TN staging and imaging features to find the imaging characteristics for TN staging, and to find the indicators of new technology and reference values for facilitate pre-treatment diagnosis of TN staging, optimize surgical strategy , predict the the efficacy of adjunctive therapy , and OS and define the range of lymph node for radiotherapy , as making personal treatment planning for gastric cancer .

Gastric cancer is the fourth most common type of cancer and the second leading cause of cancer-related death in the world. In China, more than 390,000 new patients are diagnosed with gastric cancer and more than 300,000 patients are killed by the terrible disease annually. Although gastric cancer has a multifactorial etiology, infection with H. pylori is highly associated with gastric carcinogenesis. Therefore, eradication of H. pylori infection appears to reduce the risk of gastric cancer. However, several recent controlled interventional trials by H. pylori eradication to prevent gastric cancer have yielded disappointing results. The exact effect of H.pylori eradication on prevention of gastric cancer is unclear up to now. To clarify this problem, the investigators conducted a prospective, randomized, double-blind, placebo-controlled, population-based study to determine whether H pylori eradication would reduce the incidence of gastric cancer in a high-risk population in China.

In this study, we will prospectively recruit 100,000 individuals, including gastric cancer patients who have not undergone any anti-tumor treatment and non-gastric cancer participants. We will construct a diagnostic model for malignant tumors based on the combination of tongue imaging, tongue coating, saliva, and fecal multi-omics data (including metagenomics, proteomics, metabolomics, etc.). Additionally, it will explore the relationship between oral and intestinal microbiota and the development of malignant tumors.

The purpose of this study was to investigate the effects of omega-3 fish oil fat emulsion on peripheral blood C-reactive protein, total lymphocyte count, plasma albumin and immune function after radical surgery combined with intraperitoneal hyperthermic perfusion chemotherapy in patients with locally advanced gastric cancer. at the same time, to explore the effects of omega-3 fish oil fat emulsion on complications, length of stay and total cost of hospitalization. The main question it aims to answer is whether the use of omega-3 fish oil fat emulsion can improve patients' immunity, speed up recovery and reduce costs. Participants will comprehensively collect patient-related baseline data, including sex, age, BMI, ASA grade, tumor location, histological grade, pathological tumor type, pTNM stage (AJCC cancer stage 8), and perilymphatic vascular / nerve infiltration. Immune function evaluation related index: peripheral blood lymphocyte count. Plasma albumin concentration, C-reactive protein, postoperative infectious complications, length of stay and cost of hospitalization. Finally, statistical analysis software was used to analyze the differences between the two groups, evaluate the above indicators and draw mutual conclusions.

The present clinical trial was designed to explore the effect of postoperative physical exercise combined with enteral nutritional supplement on 3-year disease-free survival in patients with advanced gastric cancer.

purpose of research： fundamental purpose: • To evaluate the effectiveness of pemitinib in patients with advanced gastric cancer who have failed standard therapy with fibroblast growth factor receptor 1-3 (FGFR1-3) variant (including but not limited to FGFR1-3 amplification, rearrangement / fusion, mutation, etc.). Secondary purpose: To evaluate the safety and tolerability of pemitinib in patients with advanced gastric cancer who have previously failed standard therapy with the FGFR1-3 variant: including incidence of adverse events (AEs) and serious adverse events (SAEs) and association with therapy. Incidence of treatment-related AEs / SAEs. Exploring efficacy and safety in subjects with different FGFR variant types. The end of the study: Main end point: • The primary endpoint of the study was the 6-month PFS rate (progression-free survival, defined as first dose to disease progression [PD] or death). Secondary end point: • Objective response rate (defined as the proportion of subjects achieving complete response (CR) or partial response (PR) by RECIST1.1 criteria). Duration of response (DOR, defined as the time from first CR or PR to PD, is used only for subjects with an objective response). Disease control rate (DCR, defined as the proportion of subjects with CR + PR + stable disease stable [SD]). Overall survival (OS, defined as the time of first dose to death from any cause). Safety and tolerability: Grade evaluation for assessing the severity of adverse events according to NCI CTCAE (version 5.0), including: Incidence, severity, and association of all AEs, TRAEs, SAEs, and the study drug; Number and proportion of subjects stopping treatment due to the above adverse events; Study changes in vital signs, physical examination findings, and laboratory results before, during and after treatment. To describe the efficacy and safety in subjects with different FGFR gene variant types.

Efficacy and Safety of Disitamab Vedotin Combined With Sintilimab in Second-line Treatment of Advanced Gastric Cancer: a Prospective, Single Arm Clinical Study

Endoscopic submucosal dissection (ESD) is the technique that has replaced surgery in the treatment of early neoplastic lesions of the stomach (LNPS). ESD of LNPS allows: a) less invasiveness compared to surgery; b) greater chances of "en bloc" resection and R0 resection compared to mucosectomy for lesions larger than 15 mm. Recent 2015 ESGE guidelines provide precise recommendations for the use of ESD in the treatment of LNPS, but Italy lacks prospective data on the efficacy and safety of ESD in a large sample of patients. A multicenter prospective observational study to create a database on the use of ESD in LNPS is essential to provide information regarding the efficacy and safety of ESD in Italy. This database would also provide information regarding the criteria applied in the use of ESD in the treatment of early gastric neoplasia

Mediastinal lymph node dissection has been adopted as standard treatment for adenocarcinoma of esophagogastric junction(AEJ). This multi-center, exploratory, prospective, cohort study aims at provide standard technical details of laparoscopic mediastinal lymph node dissection, and explore the potential clinical effects, gather key information for following study regarding sample size calculation, primary outcome and feasibility.

The purpose of this study is to explore the clinical application value of Double-Stapling End-to-End Gastroduodenostomy Billroth-I Anastomosis in Laparoscopy-Assisted Surgery for Locally Advanced Distal Gastric Cancers.