View clinical trials related to Gastrointestinal Neoplasms.
Filter by:This is a retrospective and prospective multicenter registry to collect long-term data (1 year) on patients who have or will undergo Endoscopic resection such as EMR, ESD, EFTR, STER, etc. within the gastrointestinal tract for endoscopic treatment of early gastrointestinal neoplasms involving the resection of the superficial layers, mucosa and submucosa, of the tract wall. Subjects will be consented for medical chart review. The purpose of this retrospective and prospective registry is to assess long term data on efficacy, safety and clinical outcome of Endoscopic Resection within the gastrointestinal tract (1 year). The registry will evaluate efficacy, technical feasibility, clinical outcome, safety profile and overall clinical management through medical chart review. The procedures the investigators are evaluating are all clinically indicated and will not be prescribed to someone to participate in this registry study.
An observational, prospective, multicentre and international study. This will be a non-interventional study to evaluate the efficacy and safety of endoscopic resection of gastrointestinal lesions and to determine what are the factors related to complications, and to describe these lesions according to the different morphologic and histologic classifications.
Substantial progress has been made in the treatment of cancer through the use of targeted therapies, but what works for one patient might not work for another patient. Certain drugs are now being developed that target specific molecules in the body that are believed to be part of the disease. Biomarkers are specific characteristics of the cancer that may help provide prognostic information (e.g. how well patients will be regardless of the treatments given) or help predict sensitivity or resistance to a specific treatment. The study will collect archival tumor samples (previously collected biopsy or surgical tumor samples) to provide biomarker data about a patient's cancer, which may help their physicians to identify which clinical trials of new drug treatments may be most appropriate for the patient in the future and may also guide the use of approved treatments that may potentially benefit the patient. Another goal of this study is to develop a province-wide registry of targeted gene sequencing testing results that will be made available to cancer researchers. Additional tumour tissue and blood samples collected from all study participants will also be stored in a biobank at the Ontario Institute for Cancer Research for future research. The study will also look at linking data from this study to other health care databases to further collect information about the health care the patients received, including medical tests, clinic visits, or procedures both before and after participating in this study. Having more information about patient health to relate to the DNA sequences may provide new insights into cancer and its treatment.
Patients accepted laparoscopic radical operation for carcinoma of colon and upper middle section of the rectum will be as the research object. Cancer patients are diagnosed based on pathology or cell biology. The trial is randomized, parallel and open. They are randomized into 2 groups: both groups receive surgery. The experimental group receives conventional treatment combine with electroacupuncture Zusanli point .etc finish operation and the contrast receives the same conventional treatment with experimental group. Clinical evaluation includes gastrointestinal tract recovery of function, pain relief, life quality improvement. Blood biochemistry tests mainly include gastrin(GAS), stress related hormone, peroxidatic reaction and the ratio of immune cells.
Sub epithelial lesions (SELs) of the gastrointestinal (GI) tract are commonly identified during routine endoscopy. Most of these lesions are benign. However because there is the potential for malignant transformation it is important to correctly identify the lesion in order to determine if any further therapy and/or surveillance is necessary for the patient, particularly for gastrointestinal stromal tumors (GISTs). Obtaining a definitive diagnosis for SELs is often difficult since biopsies of the normal overlying surface mucosal layer are typically normal. EUS-FNA is the standard method by which a biopsy-proven diagnosis is obtained for most SEL's. However, the yield for a definite diagnosis from EUS-FNA for SELs is often suboptimal. Recently a new biopsy method, called "single incision needle-knife" (SINK) was introduced that may prove more useful in determining a definitive diagnosis. Furthermore, recent advances in core biopsy needles for EUS offer the hope for improved outcomes with EUS-guided fine-needle biopsy (FNB). However, it remains unclear whether superior diagnostic outcomes are obtained using the new SINK biopsy method or using new EUS-FNB core needles.
The aim of the project is to study the role of minimally invasive imaging methods, such as magnification endoscopy with narrow-band imaging (M-NBI) combined with confocal laser endomicroscopy (CLE), in correlation with immunohistochemical analysis, for assessing the angiogenesis status of patients with gastrointestinal tumors, in particular with colorectal and gastric cancer. Angiogenesis, i.e. the process of forming new blood vessels, represents an essential event for tumor growth and metastasis and the importance of its understanding stems from potential applications for diagnosis, prognosis stratification and mainly from the possibility of developing and improving targeted therapies. While current methods for evaluating tumor vascularity are based on immunohistochemistry techniques with microvascular density (MVD) calculations, these imply repeated tissue sampling and are not feasible in the context of clinical practice. Imaging techniques might overcome limitations associated with MDV measuring, obtaining both functional and morphological information and enabling repeated evaluations that are necessary for the assessment of a dynamic process as angiogenesis during follow-up of targeted therapies. NBI is a digitally enhanced endoscopic imaging technique that uses optical filters to illuminate tissue with light at blue and green wavelengths. These are selectively absorbed by hemoglobin and, as a result superficial vascular networks are highlighted and morphological changes in capillary patterns can be described for different lesions. CLE represents a revolutionary technology that enables endoscopists to collect real-time in vivo histological images or "virtual biopsies" of the gastrointestinal mucosa during endoscopy, and has raised significant interest for the potential clinical applications and numerous research possibilities. After intravenous administration of fluorescein as a contrast agent, CLE enables real-time visualization of the tumor vasculature, which is structurally and functionally altered compared to the normal vascular networks. Therefore M-NBI will be used for enhanced visualization of morphological changes of the superficial capillaries, while CLE will be directed towards vascular regions of interest for characterization of these changes at the microscopic level. Furthermore, imaging studies will be backed by MVD calculation using immunohistochemical methods, based on tissue samples harvested during endoscopic procedures.
This study evaluates the safety and efficacy of D-CIK immune cells combined with chemotherapy after resection of esophageal cancer
The overall goal of this feasibility study is to assess the initial safety and efficacy of LUM015 in ex vivo far-red imaging of colorectal, pancreatic, and esophageal cancers (adenocarcinoma) using the LUM Imaging System.
Cancer of the gullet (oesophagus) is a lethal disease in which only 15% of patients survive 5 years once diagnosed. It is more common in men than women, and men appear to have a worse prognosis. One suggestion for this gender difference is the sex hormone oestrogen, which exerts its effect via oestrogen receptors. The role of oestrogen in breast cancer is well described, and antioestrogen medication such as tamoxifen, which blocks oestrogen receptors are in widespread and effective use. The role of oestrogen receptors in oesophageal cancer however, is less well defined. Work conducted by the investigators, as well as another research group in Australia showed that antioestrogens including tamoxifen, reduce oesophageal cancer cell growth in the laboratory. To date, no studies have assessed the effect of tamoxifen therapy on oesophageal cancer growth in humans. The investigators propose a study to determine the effect of tamoxifen in patients with oesophageal cancer who aren't undergoing surgery or chemotherapy. Patients will receive tamoxifen tablets daily for 4 weeks after which time a biopsy (sample of cancer tissue) will be taken at gastroscopy (a flexible camera that is passed into the mouth through the gullet into the stomach). The biopsy will be compared with the biopsy taken at the time of diagnosis to determine if tamoxifen has had any effect on cancer cell growth. If this study shows that tamoxifen does slow cancer cell growth it could lead to a larger study of patients with oesophageal cancer taking tamoxifen for a longer time period to determine if there is any clinical benefit.
Feasibility of an newly programmed offline application for smartphones (SPA, APP) for colonoscopy preparation offering a 5 day guidance prior colonoscopy containing dietary- and behavioral recommendation.