View clinical trials related to Colonic Neoplasms.
Filter by:Clinical studies have shown that patients with right-sided colon cancer have reduced progression-free and overall survival compared to patients with left-sided colon cancer. At the same time, patients with right-sided colon adenomas have a higher risk of developing interval cancers after endoscopic mucosal resection. Dysbiosis and known bacterial drivers play a significant role in the carcinogenesis of colorectal cancer, and may contribute to the growth of adenomas. Clinical studies have found biofilm formation and positive staining for Fusobacterium nucleatum (FN) in almost all right-sided colon cancers and adenomas. The composition of bacteria also in the normal mucosa in these two groups of patients has been found to be different from healthy controls. Endoscopic preoperative antibiotic local treatment of the biofilm and tumors would theoretically result in decreased tumor mass, recovery of the mucosa, and a normalization of the immune response in the treated section of the colon. The oral administration of the antibiotic metronidazole in mice has shown to lower the tumor load (FN-positive xenograft tumors) and decrease in intratumoral abundance of the pro-carcinogenic bacteria, FN. The aim of this study is to investigate the effect of local antibiotic treatment with fosfomycin and metronidazole on tumor characteristics and the colonic biofilm in patients with right-sided colon cancer or right-sided colon adenomas. This is a clinical proof-of-concept intervention study, and the investigators are to our knowledge the first group to look into local antibiotic treatment of biofilm in patients with colon cancer or colon adenoma. It is based on a non-randomized trial design with an open label single group assignment. There are two tracks depending on the pathology of the tumor: 1) patients with right-sided colon cancer; 2a) patients with right-sided colon adenoma. The intervention is a therapeutic endoscopy where the antibiotics fosfomycin and metronidazole are sprayed throughout the right colon section from caecum to the right colon flexure (100ml of gel contains 800mg of fosfomycin and 200mg of metronidazole). Patients will be included prospectively from the surgical department of Herlev University Hospital and Zealand University Hospital once having received oral and written information, followed by signing the consent. There will be a retrospective cohort of patients with colon adenoma from 2018 (track 2b). The investigators will retrieve the archived adenoma tissue as control tissue. In Clinical Trial, Track 1 and Track 2a will be registered as two different arms that use the same intervention, but the results from each arm later on is going to be reported in separate publications.
The success of the enhanced recovery program after surgery leads us to consider outpatient management of the colectomy. To this end, the investigators have designed an observational and prospective study of left laparoscopic colectomy on an outpatient basis. The objective is to assess the harmlessness of this management compared to standard management in the context of a public hospital.
In this study, we aimed to develop a predictive model of lymph node yield in a series of colon cancer resection specimens with detailed anatomic and surgical technique data.
This study evaluates the ability of endoscopists to perform a complete optical diagnosis of colorectal polyps between 5 and 15 mm, and the impact of the only endoscopic diagnosis on the follow-up program for those patients. This is a prospective study in which we compare the diagnosis regarding size and histology made by the endoscopist versus de pathologic diagnosis.
This is a prospective, single arm study to assess the safety and performance of the EndoMaster EASE (Endoluminal Access Surgical Efficacy) System for the treatment of patients with colorectal neoplasms.
The primary objective of this study is to compare the differences in fruits and vegetable intake and physical activity from pre- to post- study between the intervention and control groups (i.e. the difference in differences). The study involves the use of web-based educational materials over a four week period. The investigators hypothesize that those in the intervention group will show a greater increase in fruit and vegetable intake and engage in more physical activity than those randomized to the control group. Eligible breast and colorectal cancer survivors from the UNC Health Registry/Cancer Survivorship Cohort (UNC HR/CSC) will be selected, consented, and randomized to either the intervention or control group. Both groups will fill out baseline surveys. The intervention group will receive a total to 4 newsletters for 4 weeks and at the beginning of week 5, they will asked to complete the follow-up survey online. The intervention newsletters focus on increasing physical activity and healthy diets. The control group will receive 4 newsletters in the same time frame as the intervention. The focus of the control group's newsletters will be on topics relevant to cancer survivors (e.g. getting back to work after treatment, managing finances) but will not focus on physical activity or diet. All contact with participants will take place online (i.e. surveys and newsletter delivery) from the study web site.
The prevalence of malnutrition is common among patients with colorectal cancer. Chemotherapy induced side effects may impact negatively on nutrition intake thus increase the risk of malnutrition and serious complications for patients. Purpose is to test the effect of empowering education on activation and knowledge level among patients with colorectal cancer during the chemotherapy. Secondary outcomes are quality of life and malnutrition. A two-arm, single center, patient blinded superiority trial with stratified randomization (1:1) and with repeated measures is used to measure the effectiveness of face-to-face education on nutrition intake related chemotherapy induced side-effects' self-care compared to standard care. Eligibility criteria are adult patients diagnosed with colorectal cancer and receiving intra venous chemotherapy treatment. Patients are recruited in one university hospital outpatient clinic in Finland. Experienced oncology nurse delivers the intervention two weeks after the first chemotherapy. Primary outcomes are activation in self-care and knowledge level. Secondary outcomes are quality of life and risk of malnutrition measured at baseline (M0) and after eight (M1) and 16 weeks (M2) after the intervention. The study will provide knowledge of nurse-led educational intervention on self-care among patients with colorectal cancer. The findings will contribute to patient education and self-care, thus better quality of life.
The PHYTOME project (Phytochemicals to reduce nitrite in meat products) is a major European Union (EU) co-funded research project that aims to develop innovative meat products in which the food additive nitrite has been replaced by natural compounds originating from fruits and vegetables. These biologically active compounds, also referred to as phytochemicals, are known to contribute to improved gut health and are added to the meat as natural extracts. In a number of meat products, carefully selected combinations of natural antioxidants and other biologically active compounds occurring in vegetables, fruits and natural extracts such as coffee and tea, will be added during meat processing. Some of these compounds possess an antimicrobial activity allowing them to replace nitrite, whereas others possess a natural red colour that may contribute to the desired appearance of the products. Also, some of these compounds are known to protect colonic cells against damaging effects of cancer causing agents that may be formed in the large intestine after meat consumption. The PHYTOME project will develop new technologies to introduce the natural extracts during processing to different types of meat products. These techniques will guarantee good sensory quality of the product as well as microbiological safety. Once these techniques have been developed and optimized at laboratory scale, the new type of products will be produced on an industrial scale. The health promoting effects of these products will be evaluated in a human dietary intervention study with healthy volunteers. After consumption of a fully controlled diet with either relatively high amounts of the traditional meat products or products produced following the new concept, faeces and colonic material will be collected and investigated for markers of colorectal cancer risk. These investigations will be performed in close collaboration with Research Institutes in the United Kingdom, Belgium, Italy and Greece, and will make use of the newest genomics techniques that are available.
A monocentric window of opportunity study preceded by a safety run-in phase. The study population will include locally advanced colon patients (T3 or T4).
Inflammation plays an important role in the pathogenesis of peritoneal carcinosis. Patients with elevated levels of different inflammation cytokines show a worse prognosis at the time of diagnosis. In women, ovarian and colon cancer are the main causes of peritoneal carcinosis and a comparison of these two different types of peritoneal invasion have not been conducted yet. We found interesting studying the role of immune response, in particular tumour-associated antigens (TAA) that modulate the metastatic process. We will investigate also mitochondrial defects, such as mutations in mt-DNA, potentially involved in carcinogenesis.