Active clinical trials for "Stomach Neoplasms"

This study is an open-label, multicenter, phase II study to evaluate the efficacy and safety of DP303c injection in patients with HER2-positive advanced or metastatic 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.

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.

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.

This trial studies how well a prehabilitation program works to improve patient outcomes after surgery compared to the normal standard of care prehabilitation in frail patients undergoing surgery for pancreatic, liver, or gastric cancer. Frailty is defined as the pathophysiology of aging or through the accumulation of physiologic and functional deficits. Prehabilitation programs seek to optimize the medical and physical state of patients prior to undergoing surgery with the goal of improving outcomes following surgery. Despite evidence for its importance in health outcomes for frail patients, prehabilitation programs have not been well studied in cancer surgery populations. This trial may provide researchers with more information on how to improve patient outcomes after cancer surgery through the use of prehabilitation programs.

Objective: To follow people with GISTs and collect tumor tissue so that it can be studied in the lab. Eligibility: People age 6 and older who have a GIST. Design: Participants will be screened with a review of their medical records and samples. Participants will enroll in 1 other NIH study, and may be asked to enroll in 2 other optional NIH studies. Participants will have a medical history and physical exam. Data about how they function in their daily activities will be obtained. Participants may speak with a genetic counselor. They may have genetic testing. Participants will give blood samples. They may have a cheek swab. For this, small brush will be rubbed against the inside of the cheek. Participants may have a computed tomography (CT) scan of the chest, abdomen, and pelvis. Or they may have a CT scan of the chest and magnetic resonance imaging (MRI) of the abdomen and pelvis. Participants will be monitored every 6-12 months at the NIH Clinical Center, for up to 10 years before having surgery. If they need surgery, it will be performed at the NIH. Then, they will be monitored every 6-12 months, for up to 5 years after surgery. If a participant has surgery, tumor tissue samples will be taken. If a participant does not need surgery, their participation will end after 10 years. If they have surgery, the 5-year monitoring period will restart after each surgery.

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.

This study explores the efficacy and safety of fruquintinib combined with irinotecan in the second-line treatment of patients with advanced gastric cancer, aiming to bring more second-line treatment options for patients with advanced gastric cancer.