Active clinical trials for "Colonic Neoplasms"

According to general medical guidelines, adjuvant chemotherapy is used after curative resection of high-risk stage II or III primary colon cancer. However, there exist limitations using clinical trial data acquired from highly selected subjects in a controlled environment. For example, patients aged over 70 years old were in many cases excluded from clinical trials resulting in insufficient data on the efficacy of therapies including oxaliplatin in aged patients, and the source data of the medical guidelines did not fully reflect the conditions of Korean patients. In addition, suggestions are continuously being submitted for existing therapies with modified administration periods and methods with the aim to search for the optimum effect over side effects. Discussions are also held on meta analyses results that imply the need to apply slightly different approaches through small groups of patient and disease factors. As there are more diverse adjuvant therapy protocols that can be applied to post-surgery colon cancer patients, it is necessary to figure out the patterns of adjuvant chemotherapies actually used in Korean medical practices. Also, in order to complement the limitation of external validity of the existing base clinical data, a multifaceted exploratory analysis will be conducted by making follow-up observations on patterns, prognosis results, quality of life, adverse effects, etc. of post-surgery adjuvant chemotherapies actually used in around 30 sites in Korea under the noninterventional observational study conditions.

The overall aim of this study is to prospectively validate the superiority of the Immunoscore as a decision guidance for adjuvant chemotherapy in stage III colon cancer patients, in comparison to the conventional TNM-based high- or low-risk classification.

Less than half of all positive fecal immunochemical testing (FIT)s are followed-up by colonoscopy, thus limiting the full potential of colorectal cancer (CRC) screening to reduce mortality. Given the need for coordination in order to achieve high rates of follow-up, multilevel approaches are needed. Such approaches could be particularly beneficial in communities and populations that experience cancer disparities and have fewer specialty providers, but most data focuses on large systems or urban areas. The academic-community health system collaboration is uniquely poised to address this research and service gap. The persistent poverty and health disparities in rural Southern Illinois set the stage for truly impactful research. The investigators' approach will serve as a model for multilevel interventions in rural settings, inform future work addressing other health disparities, and fill a gap in rigorous trials of CRC screening follow-up in rural areas.

This phase Ib trial studies side effects and best dose of dasatinib in preventing oxaliplatin-induced peripheral neuropathy in patients with gastrointestinal cancers who are receiving FOLFOX regimen with or without bevacizumab. Drugs used in chemotherapy, such as leucovorin, fluorouracil, and oxaliplatin (FOLFOX regimen), 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. However, the buildup of oxaliplatin in the cranial nerves can result in damage or the nerves. Dasatinib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Blocking these enzymes may reduce oxaliplatin-induced peripheral neuropathy.

Developement of a clinical and biological database in colon cancer and colic tumors in order to better understand tumor invasion and metastatic scattering processes. The investigators hope that a better understanding of tumoral invasion process will lead to the discovery of new biomarkers and new drugs.

This study is to collect and validate regulatory-grade real-world data (RWD) in oncology using the novel, Master Observational Trial construct. This data can be then used in real-world evidence (RWE) generation. It will also create reusable infrastructure to allow creation or affiliation with many additional RWD/RWE efforts both prospective and retrospective in nature.

This phase II trial studies whether tucatinib combined with trastuzumab and TAS-102 works to shrink tumors in patients with HER2 positive colorectal cancer that has spread to other parts of the body (metastatic) and has one of the following gene mutations detected in blood: PIK3CA, KRAS, NRAS, or BRAF V600. Tucatinib is in a class of medications called kinase inhibitors. It works by blocking the action of the abnormal protein that signals tumor cells to multiply. This helps stop or slow the spread of tumor cells. Trastuzumab is a form of targeted therapy because it attaches itself to specific molecules (receptors) on the surface of tumor cells, known as HER2 receptors. When trastuzumab attaches to HER2 receptors, the signals that tell the cells to grow are blocked and the tumor cell may be marked for destruction by the body's immune system. TAS-102 is a combination of 2 drugs; trifluridine and tipiracil. Trifluridine is in a class of medications called thymidine-based nucleoside analogues. It works by stopping the growth of tumor cells. Tipiracil is in a class of medications called thymidine phosphorylase inhibitors. It works by slowing the breakdown of trifluridine by the body. Giving tucatinib, trastuzumab, and TAS-102 together may work better than usual treatment for metastatic colorectal cancer.

In this study, the investigators aim to assess the influence of a computer-aided detection (CADe) system on the visual gaze patterns of endoscopists in order to further understand the effect of AI during real-time colonoscopy.

The proposed study is a bidirectional analytical study, composed of a retrospective and a prospective cohorts. Patients with stage II - III colorectal cancer undergoing oncological surgery will be analyzed. The study will include a convenience sample of 100 individuals. Fifty cases will be included retrospectively and fifty prospectively. The study aims to evaluate the benefit of using the Immunoscore test as a predictor of recurrence in patients with operated stage II-III colon tumors. It will also be evaluated the impact on oncologic decision and costs.

It is controversial that totally laparoscopic right hemicolectomy with transvaginal natural orifice specimen extraction (NOSES VIIIA) can provide non-inferior oncological outcomes compared to conventional laparoscopic surgery with mini-laparotomy in the treatment of right colon cancer. We aim to carry out a multicenter, open-lable, parallel, non-inferiority, phase III, randomized controlled clinical trial, which enrolls 356 female patients with cT1-3NxM0 right colon adenocarcinoma. They are randomly assigned to the experimental group (NOSES VIIIA) or the control group (laparoscopic surgery with mini-laparotomy) in a 1:1 ratio. Perioperative indicators, pathological results, quality of life and cosmetic evaluation will be compared between the two groups. Then, a three-year follow-up of these patients will provide evidence for long-term oncological outcomes of NOSES VIIIA.