Active clinical trials for "Colorectal Neoplasms"

This is a prospective, single-center, clinical study.This study is to evaluate the feasibility of genetic susceptibility screening based on the detection of tumor tissue mutations by a NGS panel.

This project seeks to identify DNA-adducts in colon tissue from different groups of patients with CRC scheduled for complete or partial colon resections. Other patients scheduled for resection of the colon serve as controls. In addition, surrogate samples such as white blood cells are investigated for the presense of adducts while blood plasma and urine are investigated for the presense of DNA-repair products.

The method to analyze the microsatellite instability (MSI) status by next-generation sequencing (NGS) has been established to assess the deficiency of DNA mismatch repair (MMR) system. The aim of our study is to evaluate the feasibility and reliability of this NGS method by testing the circulating tumor DNA (ctDNA) in blood sample of advanced colorectal cancer patients. If the result is positive, the MSI status could be easily learned without the acquisition of tissue samples.

This is a prospective, multicenter, non-interventional, controlled clinical study. Evaluate MDT performance and benefit analysis in patients with advanced gastric or colorectal cancer after MDT discussion under real medical practice.

Colorectal cancer (CRC) is among the most preventable cancers when precancerous lesions are detected at an early stage. Current screening methods for CRC require bowel prep or stool-based testing that are inconvenient, resulting in low compliance. Stool based tests have limited sensitivity for the detection of precancerous lesions. The CMx platform has been showed to be able to the detection of Circulating Tumor Cells (CTCs) in high sensitivity and specificity. In published studies, circulating Tumor Cells (CTCs) are captured and quantified in advanced-stages of colorectal cancer. In order to detect early and pre-cancer circulating tumor cells, we have developed an Automated Liquid Biopsy Platform that improves the detection of CTCs in early cancer stages. Therefore, this study goals are: 1) to establish a standard detection process utilizing the Automated Liquid Biopsy Platform. 2) Parallel comparison of laboratory manual operation and Automated Liquid Biopsy Platform. 3) Verify the feasibility of use of an Automated Liquid Biopsy Platform in the clinical setting.

The goal of this laboratory research is to look for genes that can predict which patients will achieve a complete disappearance of their colorectal cancer after treatment like chemotherapy, radiation, or other therapy. This is an investigational study. Up to 350 patients will take part in this study. All will be enrolled at MD Anderson.

Build a collection of fecal microbiota in order to determine the characteristics of gut microbiota associated with colorectal cancer in Inflammatory bowel disease (IBD).

Colorectal cancer incidence is increasing at an alarming rate in China. Recent reports concluded nutrition status and lifestyle factors were associated with colorectal cancer risk, however, the influence of nutrition and lifestyle factors on cancer outcome in colorectal cancer survivors is largely unknown.The investigators will explore the impact of nutrition status, life style, dietary pattern, obesity, physical activity, depression, diabetes, aspirin use and vitamin supplement on colorectal cancer outcome. The investigators will recruit approximately 50,000 patients as a prospective study cohort. During follow up, the investigators will explore the association of these factors with disease-specific survival, disease-free survival and overall survival of patients. The investigators believe that this project will facilitate the establishment of domestic nutrition and lifestyle data of colorectal cancer of China, and the improvement of the quality of clinical management of patients with colorectal cancer.

Prognostic and predictive value of assessing the patients micrometastasis status in blood and bone marrow when diagnosed GI cancer. 2 different patient subgroups are currently studied, patients with cancer of the pancreas and patients with liver metastasis secondary to colorectal cancer. Our hypothesis is that patients with detective circulating tumor cells in the blood or disseminated tumour cells in their bone marrow at diagnosis have a more advanced disease than negative patients. This information may be of therapeutic interest.

The purpose of this protocol is to develop a detailed MRI technique and haemodynamic maps enabling early detection of colorectal metastases in the liver.