12 Clinical Trials for Various Conditions
This study looks at the effect of folate supplementation and depletion on the blood cells and the colorectal cells. To examine the effect of these changes, blood samples and colorectal biopsy samples are collected. The genetic material (RNA and DNA) is examined to see what changes occur during the depletion and supplementation of folate. The hypothesis is that folate may help prevent colon cancer
The objective of this study is to determine the optimal withdrawal time for colonoscopy. A 6-minute withdrawal time is currently the standard of care but has only been evaluated in an observational fashion. The investigators believe that this should be validated in a standardized fashion. If the benefits of a 6 minute withdrawal are proven in this study (ie a low polyp/adenoma miss rate and a high polyp/adenoma detection rate), then this will support widespread adoption of a 6 minute withdrawal as the standard of care. This in turn may decrease the occurence of 'interval colon cancers', which are early colon cancers arising in subjects despite their having undergone colonoscopy. Our hypothesis is that the polyp/adenoma detection rate will be unacceptably low and the polyp/adenoma miss rate will be unacceptably high in the 3-minute withdrawal group when compared to the 6-minute withdrawal group.
The Mainz Biomed Colorectal Cancer Screening Test is being studied for its performance in the identification of the presence of colorectal cancer (CRC) or advanced adenoma (AA) in the colon in patients at average risk for colorectal cancer.
This study aims to develop a highly sensitive, specific, and cost-effective blood assay for early detection of colorectal adenomas and cancer, using advanced machine learning and state-of-the-art biological analyses.
This study was a prospective analysis conducted by Geneoscopy Inc. to evaluate the ColoSense test, which is a multi-target stool RNA test for colorectal cancer screening.
The aim of this study is to assess the efficacy of Ultivision Artificial Intelligence (AI) Software in detecting adenomas in screening colonoscopy procedures. The safety of Ultivision AI Software will also be assessed. A subset of the subjects will enter a roll-in period for clinical trial safety assessment. The remainder of subjects who are eligible will enter the detection phase which comprises a screening colonoscopy procedure. In the detection phase, subjects will be randomized to a screening colonoscopy with Ultivision AI Software enhancement or without AI Software enhancement. The study will measure the mean adenomas per colonoscopy procedure, as defined by the protocol, detected while receiving either treatment option.
RATIONALE: Drugs used in chemotherapy, such as irinotecan, fluorouracil, and leucovorin, work in different ways to stop tumor cells from dividing so they stop growing or die. Radiation therapy uses high-energy x-rays to damage tumor cells. Combining more than one chemotherapy drug with radiation therapy may kill more tumor cells. PURPOSE: This phase II trial is studying how well giving combination chemotherapy together with radiation therapy works in treating patients with stage III or stage IV colorectal carcinoma (cancer), other refractory carcinoma (cancer), or metastatic adenocarcinoma (cancer) of unknown primary origin.
This is an open label, multi-center, multi-arm, dose-escalation study of BBI608 administered in combination with Gemcitabine and nab-Paclitaxel, mFOLFIRINOX, FOLFIRI, or MM-398 with 5-FU and leucovorin.
This phase II trial studies how well Polyphenon E works in treating patients with high-risk of colorectal cancer. Polyphenon E contains ingredients that may prevent or slow colorectal cancer.
The purpose of this study is to assess the interobserver agreement (IOV) for pancreatico-biliary Volumetric Laser Endomicroscopy (VLE) de-identified clips using the new VLE criteria. This is an Interobserver study to validate VLE criteria for indeterminate biliary and pancreatic duct strictures and evaluate impact on clinical management.
This phase II trial studies how well temsirolimus and bevacizumab work in treating patients with advanced endometrial, ovarian, liver, carcinoid, or islet cell cancer. Temsirolimus may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Monoclonal antibodies, such as bevacizumab, can block tumor growth in different ways. Some block the ability of tumor cells to grow and spread. Others find tumor cells and help kill them or carry tumor-killing substances to them. Bevacizumab may also stop the growth of cancer by blocking blood flow to the tumor. Giving temsirolimus together with bevacizumab may kill more tumor cells.
The researchers are involved in a research program to understand how vitamin D and calcium in the diet or as supplements may lower the risk of colorectal polyps and cancer. To that end, the researchers are conducting a study of vitamin D supplementation in which volunteer subjects are provided a Western style diet for 2 separate 4 week periods at the Rockefeller University Hospital. During one of these 4 week inpatient periods, subjects receive calcium supplements and during the other 4 week inpatient period they receive a placebo tablet. The researchers determine changes within the colon as a result of supplementing the vitamin D in the presence of high and low calcium. A more detailed description of the study is provided below.