Active clinical trials for "Stomach Neoplasms"

The purpose of this study is to explore the effect of preoperative hemotologic markers on postoperative long-term and short-term outcomes for laparoscopic gastrectomy.

This prospective cohort study aims to observe the efficacy and safety of the first-line combined chemotherapy for advanced gastric cancer(AGC) in Chinese population.

Experienced endoscopists will perform endoscopy during the study period and the detection rate of gastric premalignant lesion, correlation between endoscopic and serologic diagnosis of premalignant lesions and inter-observer agreement rate will be analyzed before and after the education.

Adjuvant chemotherapy (AC) for gastric cancer is known to improve prognosis, and longer time to AC is associated with worse survival. However, most clinical trials mandate that AC is still to commence within 6 to 8 weeks after surgery consideration for malnutrition, postoperative complications and intolerance of AC. Placement of jejunostomy nutrition tube for enteral nutrition is a common component of these procedures, as a result of superior postoperative organ function, decreased infection rates, and a greater likelihood to complete AC with enteral nutritional support. Fast-track surgery (FTS) recovery program focuses on enhancing recovery and reducing morbidity. Introduction of FTS concepts are safe, feasible, and can achieve shorter hospital stays and reduced costs. Early postoperative enteral nutrition combined with FTS results in reductions in total complications compared with traditional postoperative feeding practices and does not negatively affect outcomes. However, the benefit of jejunostomy nutrition tube routine placement and combination with FTS is still being debated. Besides, there remains some controversy over the optimal combination of nutrients and duration and timing and routes of feed administration. The aim of this study was to determine whether FTS with early jejunostomy nutrition (EJN) following laparoscopic gastrectomy for gastric cancer improved postoperative recovery and minimizes time to AC when compared with FTS with early oral nutrition (EON).

The main aim of this multicentric 5-year follow-up study is to evaluate for the first time the long-term efficacy and safety (in terms of smoking-related serious diseases requiring hospitalization) of e-cigarette smoking, comparing its health effects with those of traditional cigarette smoking and mixed electronic and traditional cigarette smoking. The study will also permit to evaluate, over a 5-year follow-up, the self-reported quality of life, and the reported adverse events according to current and past smoking habit. Finally, the study will also explore the long-term adherence to e-cigarette smoking and its efficacy of e-cigarettes in reducing and/or quitting traditional cigarette smoking.

This trial is going to evaluate the advantage of D2 radical gastrectomy plus 14v lymph node dissection in 3-year survival rates of advanced gastric cancers.

This study was advocated by Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences in December 2012. It was funded by China major scientific and technological specialized project for 'significant new formulation of new drugs'. The purpose of this study is to make a cohort event monitoring to see whether and how Shenqifuzheng injection in hospital results in adverse events or adverse drug reactions.

Endoscopic submucosal dissection (ESD) is a relatively new modality for the treatment of superficial gastrointestinal neoplasia and especially in the diagnosis and treatment of submucosal tumors. ESD has become a minimal invasive alternative to surgery but requires a high degree of endoscopic skills to be performed safely, it is time consuming, and less safe than endoscopic mucosa resection. New endoscopic instruments have been developed to increase the efficacy and safety of ESD, and a combined endoscopic instrument (HybridKnife) has been developed and evaluated with promising results in animal studies. This HybridKnife allows high-pressure water-jet (submucosal) dissection, as well as cutting and coagulation and makes ESD possible without changing instrument. The purpose of this study is to evaluate the feasibility and safety of using HybridKnife for ESD in humans.

The purpose of this study is to provide educational material to promote screening for second primary cancer for the intervention group, or educational material to instruct appropriate use of dietary supplement for the control group.

Gastric cancer is one of the common malignant tumors in China, with relatively high incident rate and mortality among the population. Surgery is the conventional treatment option for early and intermediate-stage stage gastric cancer, but postoperative relapse is the major issue. Circulating tumor DNA (ctDNA) is tumor-derived fragmented DNA with an average size of 166 bp, mixed with cell free DNA (cfDNA) of other sources in blood circulation.ctDNA is reflecting the most up-to-date status of tumor genome. Hence, it is considered as a new biomarker for tumor, which can be qualitative, quantitative and used for disease monitoring. The present clinical trial aims to explore the possibility of clinical utility of serum ctDNA as a clinical index to predict the efficacy in immunotherapy for advanced gastric cancer.