View clinical trials related to Colorectal Neoplasms.
Filter by:This study is designed to investigate long-term oncologic outcomes of single-incision laparoscopic surgery (SILS) compared to conventional laparoscopic surgery (CLS) for colorectal cancer.
Most cancer-related deaths are caused by distant metastases, which are tumour cells that have escaped from a primary tumour and passed into the bloodstream to colonize a new organ. In this context, communication between tumour and stromal cells is essential. Indeed, tumor cells interact with cells in the tumor microenvironment and are able to modify them to their advantage. Both extracellular vesicles (EVs) and exosomes are heterogeneous populations of small vesicles present in the tumor microenvironment and in body fluids that have recently emerged as powerful mediators involved in this communication and their transport in fluids. Tumor cells release large quantities of exosomes containing tumor markers, which can then spread to distant locations. The exosomes are of endosomal origin. They are composed of proteins, lipids, RNA and DNA, and they circulate in the bloodstream. They can be internalized by specific distant cells and thus deliver a functional message. It has recently been shown that tumor exosomes containing pro-metastatic factors form pre-metastatic niches, before the tumor cells actually arrive, while determining the metastatic organotropism of tumors. These properties are now opening up new avenues of research in tumor biomarkers. In recent years, several studies have highlighted different markers contained specifically in exosomes derived from cancer cells. Consequently, exosomes are considered as potential reservoirs of tumor biomarkers that could be clinically useful for the non-invasive diagnosis of cancer, with the advantage of being performed by liquid biopsy. The study of microRNA (miRNA) is of particular interest. Indeed, miRNAs are small non-coding RNAs (between 21 and 25 nucleotides) involved in the regulation of gene expression and which are frequently deregulated in cancer. Several studies underline that the variation of free miRNAs in the blood is correlated with the progression of the disease, particularly in colon cancer. However, the stability of free miRNAs is controversial. Therefore, exosomes represent a very advantageous means of transporting miRNAs in the blood, as they are able to protect miRNAs from degradation by RNAase. The hypothesis of the project is that circulating exosomes derived from tumours contain markers including specific miRNAs that could be used as biomarkers of early prognosis (survival and progression), easily measured in blood samples from patients with colon cancer. But other molecules contained in exosomes could also be of interest.
Previous preclinical study has shown that high levels of ascorbic acid (AA) possesses the ability to kill human colorectal cancer cells and high expression of GLUT3 will augment the efficacy of AA. To date, no previous studies have investigated the therapeutic role of AA in peritoneal metastatic colorectal cancer with high expression of GLUT3. This protocol is a randomized controlled study of AA infusions combined with FOLFOXIRI +/- bevacizumab versus treatment with FOLFOXIRI +/- bevacizumab alone in peritoneal metastatic colorectal cancer patients with high expression of GLUT3.
Screening for colorectal cancer (CRC) not only detects disease early when treatment is more effective but also prevents cancer by finding and removing precancerous polyps. Because many of our nation's most disadvantaged and vulnerable individuals obtain health care at federally qualified health centers, these centers play a significant role in increasing CRC screenings among the most vulnerable populations. Furthermore, the full benefits of cancer screenings must include timely and appropriate follow-up of abnormal results. Thus, the purpose of this study is to implement a multilevel intervention to increase rates of CRC screenings, follow-ups, and referrals-to-care in federally qualified health centers (FQHCs). Also, we will examine the implementation strategies used to support the implementation process and their contribution to the adoption, implementation, and sustainment of the multilevel intervention. The multilevel intervention will target three different levels of influences: organization, provider, and individual. It will have multiple components, including provider and staff education, provider reminder, provider assessment and feedback, patient reminder, and patient navigation. This study is a multilevel, three-phase, stepped wedge cluster randomized trial with four clusters of clinics from four different FQHCs. Our FQHC partners together have 40 primary care clinics and 130 primary care providers. During Phase 1, there will be a 3-month waiting period during which no intervention components will be implemented. After the 3-month waiting period, we will randomize two clusters of clinics to cross from the control to the intervention and the remaining two clusters to follow three months later. All clusters of clinics will stay at the same phase for nine months, followed by a 3-month transition period, and then cross over to the next phase. In Phase 1, we will implement provider and staff education sessions. In Phase 2, we will add provider reminders, patient reminders, and provider assessment and feedback. We will add patient navigation during the last phase. Single level interventions are often insufficient at leading to sustainable changes. Multilevel interventions are needed to address multilevel contextual influences simultaneously. How to take advantage of multilevel interventions and how to implement such interventions and evaluate their effectiveness are the ultimate goals of this study.
This phase I trial investigates the side effects and best dose of talazoparib when given together with trifluridine/tipiracil for the treatment of patients with colorectal or gastroesophageal cancer that has spread to nearby tissue or lymph nodes (locally advanced) or other places in the body (metastatic). Drugs used in the chemotherapy, such as trifluridine/tipiracil, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Talazoparib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Giving talazoparib with trifluridine/ tipiracil may inhibit certain enzymes in the cells that are responsible for tumor cell growth.
The objective is to evaluate the efficacy and safety of reintroduction of modified XELOXIRI combined with molecular targeted drug in patients with metastatic colorectal cancer (mCRC)
Colorectal cancer is the 2nd leading cause of cancer mortality in France. However this cancer is preventable in the majority of cases by early detection of adenomas. In France, there is organized colorectal cancer screening, which relies on general practitioners (GPs). Tests delivered by GPs are performed in 89% of cases. However, GPs do not systematically offer the test, for time management and communication reasons. Patients expect their GPs to offer the test and to focus on their expectations. A previous study conducted on GPs showed that training in communication and motivational interviewing increases the number of tests performed by 12.2%. In order to facilitate the promotion of screening, the investigators would like to develop a training programme for GPs focusing on the application of Motivational Interviewing (MI) techniques to the promotion of colorectal cancer screening. Motivational Interviewing is a directive, client-centered counseling style for eliciting behavior change by helping clients to explore and resolve ambivalence. This study is a multicenter trial in general medicine. In this randomized trial the 902 subjects will be included prospectively by the general practitioners (GP) participating in the study. As a first step, general practitioners who have never participated in Motivational Interviewing training will be recruited and split into 2 groups by randomization, an intervention group and a control group. The interventional group will then undergo a 3 times 2-day training in Motivational Interviewing. In a second step, the patients will be included by those GP and a self-questionnaire will be send at the inclusion and after 6, 12 and 24 months. The evaluation of the number of tests performed and the analyse of the Health Belief Model (HBM) self-questionnaire will be carried out. At 24 months, there will be an evaluation of the denial motivation questionnaire for patients who have not participated in organized colorectal cancer screening.
The aims of this three-year study are to explore cognitive function under different stages of colorectal cancer (CRC) and its related factors; and understand its disturbance and coping process caused by cancer-induced cognitive impairment (CICI) from patient perspective; and further to test effect of dual-task walking on improving cognitive function in CRC patients.
The purpose of this registry study is to create a database-a collection of information-for better understanding young onset colorectal cancer. Colorectal cancer patients are considered to have young onset colorectal cancer if they are diagnosed with their cancer before the age of 50. Researchers will use the information from this database to learn more about how young onset colorectal cancer may be similar to or different from colorectal cancer that is diagnosed later in life. Researchers will also use information from the database for current and future research on young onset colorectal cancer.
This is a multi-site, open-label, Phase II, randomized, trial to compare the efficacy of RO7198457 versus watchful waiting in patients with circulating tumor DNA (ctDNA) positive, surgically resected Stage II/III rectal cancer, or Stage II (high risk)/Stage III colon cancer.