View clinical trials related to Colorectal Neoplasms.
Filter by:The purpose of this study is to identify patients who may be eligible to participate in a separate Phase 2/3 treatment study evaluating an individualized neoantigen vaccine GRANITE for first line (1L) maintenance treatment of metastatic, microsatellite-sable colorectal cancer (MSS-CRC) sponsored by Gritstone bio. This may include the manufacturing of an individualized vaccine, which involves neoantigen prediction and generating a vaccine targeting neoantigens.
Bowel cancer, a significant problem in the United Kingdom (UK) with ~ 41,000 diagnoses and ~ 16,000 deaths annually, has a large preventable component (~54%). It is, in part, due to energy imbalance within bowel cells as suggested by associated risk factors: high-fat diet, obesity, physical inactivity and type 2 diabetes mellitus. Drugs that decrease bowel cancer risk, like aspirin and metformin, may prevent the disease by mimicking the molecular effects of dietary restriction and exercise. Energy imbalance, through obesity, expands stem cells which may increase bowel cancer. We have shown that aspirin activates an energy molecule, which increases when we exercise, and blocks signalling associated with obesity in bowel cancer. Indeed aspirin in combination with metformin (commonly used in diabetes) has a greater effect on this pathway than either drug alone. To predict which patients may benefit from aspirin and metformin, we need to discover if these drugs may mimic healthy lifestyle changes at a cellular level and which cells are being targeted. This project investigates how aspirin and metformin influence energy molecules in bowel cells to mimic beneficial effects of exercise or dietary restriction. Participants, recruited from Western General Hospital (Edinburgh) colorectal clinics, will have bowel lining and blood samples take initially and then depending on their assigned cohort, after; 24 hours, 7 days, 28 days or a 6-week course of aspirin, metformin or both tablets. Samples will be analysed for energy genes (main outcome). Secondary outcomes will measure effects on quantitative faecal immunochemical tests (qFIT), used to detect blood in the stool, and on gut bacteria. This critical research will inform how aspirin and metformin can be used in specific populations to decrease bowel cancer risk and to develop new drugs to target abnormal energy pathways.
The aim of this study is to determine accuracy and predictive values for colorectal cancer of a faecal quantitative immunochemical test (FIT) in unselected symptomatic patients presenting in primary care. Main reference test will be linkage to a nationwide colorectal cancer registry.
This was a single-arm, prospective study to investigate the safety of cetuximab in combination with trifluridin tipiracil (TAS-102) in the third-line treatment of Chinese patients with RAS wild-type mCRC.
Adenoma detection rate (ADR) has been the most important quality indicator on colonoscopy because ADR was reversely related with CRC incidence and mortality. Several image enhanced technologies, such as narrow-band imaging (NBI) or linked colour imaging (LCI) had been proved to have ability to increase the ADR. 3D techonology, however, has not been validated on colonoscopy performance. Therefore, current study was to compare the ADR between new 3D colonoscopy and conventional 2D colonoscopy.
There is no consensus about the best bowel preparation prior to transanal endoscopic surgery TES). Cleanliness and visibility in the rectosigmoid and rectum are of utmost importance, possibly even more so than during colonoscopy, to facilitate safe, precise and efficient resection of the rectal lesion and potentially adequate closure of the defect. Both Fleet enemas and oral mechanical bowel preparation are considered standard of care in preparation for TES. This single center two arm single blinded randomized controlled trial will compare the effectiveness of Fleet enemas in comparison to Pico Salax oral mechanical bowel preparation in cleansing the rectum as measured by a modified version of the Ottawa Bowel Prep Scale.
This is a single arm, open phase II study to evaluate the efficacy and safety of tislelizumab combined with cetuximab + irinotecan in the treatment of Ras wild-type recurrent and refractory colorectal cancer. This study will include Ras wild-type colorectal cancer that failed at least second-line treatment in the past, including chemotherapy (oxaliplatin, irinotecan, fluorouracil) with or without targeted drugs (cetuximab, bevacizumab). 33 patients were planned to be treated with tislelizumab combined with cetuximab + irinotecan every 2 weeks. The enrollment time is expected to be 12 months and the follow-up is 24 months.
The primary objective of the Phase 2 portion of the study is to characterize the clinical activity of maintenance therapy with GRT-C901/GRT-R902 (patient-specific vaccines) in combination with checkpoint inhibitors in addition to fluoropyrimidine/bevacizumab versus a fluoropyrimidine/bevacizumab alone as assessed by molecular response which is based on changes in circulating tumor (ct)DNA. The primary objective of the Phase 3 portion is to demonstrate clinical efficacy of the regimen as assessed by progression-free survival.
The LIVACOR - Trial is a European wide, randomized controlled, open-label, multicenter trial. Patients with synchronous colorectal liver metastases (CRLMs) and primary colorectal tumor are considered eligible and will be randomized between minimally invasive (MI) combined or staged colorectal resection (all colectomies, including high anterior resection) and liver resection of up to three segments.
This proposed study is designed to investigate the specific uptake of fructose by human colorectal tumors. In this study, subjects with colorectal cancer undergoing surgery will receive an oral sugar solution containing fructose or xylose prior to surgery. The tumor will then be resected, and a portion of the tissue will be used to measure the abundance of fructose and xylose. The study hypothesis is that the tumors will take up fructose sugar but not xylose sugar. A comparison of the sugar uptake between the tumor and normal tissues from the adjacent intestinal epithelium and smooth muscle and the liver will be conducted. This proposal will confirm that human colorectal cancer tumors can directly absorb dietary sugars, which has never been demonstrated.