Active clinical trials for "Colorectal Neoplasms, Hereditary Nonpolyposis"

This study aims to explore the role of PD-1 Antibody in preventing adenomatous polyps and second primary tumors in patients with Lynch Syndrome. There two arms, one is the experimental arm (PD-1 antibody prevention group) and the other is the control arm (routine follow-up group). For the experimental group, Tripleitriumab (PD-1 antibody) is given every 3 months for a year.

This phase IIb trial tests whether Tri-Ad5 in combination with N-803 works to prevent colon and other cancers in participants with Lynch syndrome. Each of the three injections in Tri-Ad5 vaccine contain a different substance that is in precancer and cancer cells. Injecting these substances may cause the immune system to develop a defense against cancer that recognizes and destroys any precancer and cancer cells that produce these proteins in the future. N-803 may increase immune responses to other vaccines. Giving Tri-Ad5 in combination with immune enhancing N-803 may lower the chance of developing colon and other cancers in participants with Lynch syndrome.

This study aims to identify the optimal method to recognize, risk stratify, and provide follow-up care for individuals at risk of hereditary cancer. The study team will conduct a Hybrid Type II comparative effectiveness-implementation trial, with a mixed methods component and process/formative evaluations for stakeholder engagement. The study team will evaluate three methods for identifying and risk-stratifying individuals at risk of hereditary cancer and providing post-risk stratification longitudinal care.

The investigators will evaluate the feasibility of an intervention to improve Lynch syndrome cascade screening uptake. The investigators will conduct a pilot study among 15 patients diagnosed with Lynch Syndrome and 5 genetic counselors to assess the feasibility and intermediate outcomes of an educational workbook containing exercises and resources to improve family communication among individuals with Lynch Syndrome and first-degree relatives of individuals with Lynch Syndrome.

This phase III trial studies combination chemotherapy and atezolizumab to see how well it works compared with combination chemotherapy alone in treating patients with stage III colon cancer and deficient deoxyribonucleic acid (DNA) mismatch repair. Drugs used in combination chemotherapy, such as oxaliplatin, leucovorin calcium, and fluorouracil, 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. Immunotherapy with monoclonal antibodies, such as atezolizumab, may help the body's immune system attack the cancer, and may interfere with the ability of tumor cells to grow and spread. Giving combination chemotherapy with atezolizumab may work better than combination chemotherapy alone in treating patients with colon cancer.

This is a pilot study aimed at assessing the effects of moderate dose omega-3-acid ethyl esters capsules (generic Lovaza) on molecular, and intestinal microbiota changes in participants at high risk for colorectal cancer. The study will be a single arm, open label study.

Objectives: In this Radboud University Nijmegen Medical Centre (RUNMC) initiated study our first objective is to investigate toxicity (safety and feasibility) of vaccination with frameshift-derived neoantigen-loaded DC of CRC patients with an MSI-positive CRC and persons who are known to be carrier of a germline MMR-gene mutation with no signs of disease yet. The secondary objectives of the study are: to demonstrate that peptide-loaded DC can induce or enhance an immune response to tumor-associated antigen CEA and specific frameshift-derived neoantigens in the study population. to study the pathological and clinical responses, e.g. disease-free survival, determined according to the standard protocol. Study design: This study is a phase I/II open-label study. Study population: Two groups of adults will be vaccinated: Group I) CRC patients, who are known to carry a germline MMR-gene mutation and patients with an MSI-positive CRC and yet unknown or negative MMR-gene mutation status. Group II) persons who are known to be carrier of a germline MMR-gene mutation with no signs of disease yet. All participants need to be HLA-A2.1 positive.

This randomized phase III trial studies oxaliplatin, leucovorin calcium, fluorouracil, and bevacizumab to see how well they work compared to oxaliplatin, leucovorin calcium, and fluorouracil in treating patients who have undergone surgery for stage II colon cancer. Drugs used in chemotherapy, such as oxaliplatin, leucovorin calcium, and fluorouracil, 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. Monoclonal antibodies, such as bevacizumab, may interfere with the ability of tumor cells to grow and spread. It is not yet known whether giving combination chemotherapy together with bevacizumab is more effective than combination chemotherapy alone in treating colon cancer.

The purpose of this study is to assess if artificial intelligence aid colonoscopy colonoscopy is superior to conventional colonoscopy for the detection of adenomas during surveillance colonoscopy in patients with Lynch syndrome.

Prospective multicenter registry study to assess the frequency of Lynch syndrome among patients with colorectal cancer in Russia