View clinical trials related to Stomach Neoplasms.
Filter by:The aim of this study is to investigate the efficacy, safety, and survival benefit of etoposide plus cisplatin and irinotecan plus cisplatin in first-line therapy of non-primary pancreatic metastatic and/or unresectable gastrointestinal neuroendocrine tumor G3 type. In addition, the investigators will explore the resistance mechanisms of gastrointestinal neuroendocrine tumor G3, and screen out biomarkers that can predict the efficacy of chemotherapy.
Early diagnosis of malignant tumors is pivotal for improving their prognoses. Circulating tumor cells (CTC) in peripheral blood and Volatile organic compounds (VOCs) in exhaled breath are newly developed diagnosis method. Due to the low percentage of CTCs in peripheral blood of cancer patients and the surface structure of lymphocytes (especially megakaryocytes) is often confused with tumor cells, CTC has a high false positive and negative rate. In recent years, the detection of volatile organic compounds (VOCs) in exhaled breath as a simple and noninvasive method has shown broad application prospects in the diagnosis of various diseases. A series of studies of VOCs diagnosing solid tumors the investigators had conducted in the past decade show that VOCs can not only distinguish different types of tumors, but also can make a distinction between different stages. This study was to compare CTC and VOCs with clinical samples. Predictive models will be built employing discriminant factor analysis (DFA) pattern recognition method. Sensitivity and specificity will be determined using leave-one-out cross-validation or an independent blind test set.
The Purpose of This Study is to Evaluate the Efficacy and Safety of Apafitini Combined With PD1 in Patients With Advanced Gastric Cancer After Second-line Treatment Failure, Thus Providing More Options for Patients With Advanced Gastric Cancer.
The purpose of this study is to evaluate the efficacy and tolerability of the maintenance treatment of Apatinib/Capecitabine after fluorouracil and platinum based first-line chemotherapy in advanced gastric cancer.
Methods National audit of a 90-day prospective observational cohort in which postoperative complications will be analyzed at 30 days of follow-up in adult patients undergoing scheduled surgery for gastric resection for cancer with or without an intensified recovery program (ERAS : Enhanced Recovery after Surgery) with any level of protocol compliance (from 0-100%) Research Locations Spanish Hospitals at the state level where these surgical interventions are performed on a regular basis. Objectives To determine the incidence of postoperative complications per patient and procedure, regardless of the degree of adherence to ERAS protocols and its impact on the hospital stay and postoperative complications including 30-day mortality. Sample Size For an alpha error of 5% (95% confidence) and an accuracy of 3% and estimating a number of patients with complications of 28%, the sample size calculation yields 861 patients, although the final sample size it may be smaller depending on the proportion of complications detected. Inclusion criteria Patients older than 18 years who are going to undergo surgery for gastric resection surgery due to cancer regardless of their affiliation to an ERAS intensified recovery program and the compliance level of the protocol (0-100%) Statistical analysis Continuous variables will be described as mean and standard deviation, if it is a normal distribution, or median and interquartile range, if they are not normally distributed. Comparisons of continuous variables will be performed by one-way ANOVA or the Mann-Whitney test, as appropriate. A univariate analysis will be performed to test the factors associated with postoperative complications, hospital stay and death in the hospital. Univariate analyzes and hierarchical multivariate logistic regression models will be constructed to identify factors associated independently with these results and to adjust for differences in confounding factors. The factors will be introduced in the models based on their relationship with the univariate result (p <0.05), the biological plausibility and the low rate of missing data.
In this study, patients who are going to undergo endoscopic submucosal dissection (ESD) or surgery for early gastric cancer will be enrolled and divided into ESD group and Surgery group according to the procedure they go through. The patients will be followed up for at least 5 years after ESD or surgery. Esophagogastroduodenoscopy (EDG) and biopsy will be performed 3 months and then 6 months after ESD or surgery. Thereafter, EDG will be performed along with biopsy and abdominal computed tomography annually up to 5 years. Patients' data such as age, sex, clinical diagnosis, achievement of en-bloc resection, pathological outcomes, complications and survival condition will be prospectively collected. Statistical methods such as Student's t-test, the chi-square test, the Kaplan-Meier method and the log-rank test will be used to compare the short term and long term outcomes between the ESD group and the surgery group.
The purpose of this study is to investigate the efficacy and safety of intraperitoneal and intravenous paclitaxel plus apatinib and S-1 in the conversion therapy of gastric cancer with positive exfoliative cancer cells
The investigators don't know yet how the nose and the brain decode the smells. Scientific studies in neuroscience have shown that people who have tumors may have changes in the smell of secretions. Dogs are extremely efficient at detecting these changes, even before imaging studies. A review of the recent literature shows the different work done on the diagnosis of dogs on human pathologies, especially oncology. It is now known that the smell of exhaled gases is representative of the intestinal biotope and that a large number of pathologies are related to the type of microbial populations that inhabit the intestines. Copying the olfactory organs could thus be of major interest for the early diagnosis of pathologies. More and more works are interested in the diagnostic power of electronic noses. From a technical point of view, these are nano-sensors that mimic the olfactory receptors from the breath gas of the subjects. They analyze the molecules present and compare them with a database to establish a diagnosis according to a probabilistic algorithm. The use of exhaled air for the diagnosis of cancerous pathologies has already been the subject of scientific work. A classification using the SVM method using data from 320 sensors made it possible to differentiate patients with lung cancer from controls in 98.8% of cases. The differential diagnosis of obstructive bronchopneumopathy was also very well done in this same study. Another study shows equally encouraging results, highlighting sensitivities and specificities above 80%.
This Enriched-CRT 2017 trial is a prospective, multicenter trial for adjuvant chemoradiotherapy (CRT) and chemotherapy (CT) in radical resected advanced gastric cancer (GC) patients with lymph node metastasis (LN+) and lymphovascular Invasion (LVI+). The primary purpose of this study is to evaluate the 3-year overall survival (OS) of enrolled patients receiving adjuvant chemoradiotherapy compared with those receiving adjuvant chemotherapy. The second purpose is to evaluate 3-year disease free survival (DFS) and determine the safety of CRT compared with CT in the patients enrolled in this study.
Early gastric cancer is defined as gastric cancer that only invades mucosal or submucosal layer. The 5-year survival rate of gastric cancer can exceed 90% due to appropriate treatment. The most important consideration is whether there is lymph node metastasis. Preoperative examination including gastroscopy, endoscopic ultrasonography (EUS) and CT are not accurate enough to predict lymph node metastasis in early gastric cancer. In a retrospective study, we created a nomogram to predict lymph node metastasis in early gastric cancer. In prospective validation, the sensitivity and specificity of the nomogram was 75% and 91%, respectively. Sentinel lymph node is a promising concept in early gastric cancer. Using carbon nanoparticles as tracer, the sensitivity and specificity of sentinel lymph node predicting lymph node metastasis in early gastric cancer were 90% and 100%. Based on these results, we proposed a new method that combines the Nomogram and sentinel lymph node to predict lymph node metastasis in early gastric cancer. First, the probability of lymph node metastasis of early gastric cancer patients is calculated by the Nomogram. Those with low incidence of lymph node metastasis continue to the sentinel lymph node procedure. A patient will be considered non lymph node metastasis if his/her frozen pathology of the sentinel lymph nodes is negative during the surgery. Then the standard radical gastrectomy is performed with lymphadenectomy. By comparing postoperative pathology and sentinel lymph node frozen pathology, the specificity of Nomogram combining sentinel lymph node predicting lymph node metastasis in early gastric patients is calculated. The primary endpoint of this research is that the specificity of the above-mentioned method is over 95%.