Active clinical trials for "Colorectal Neoplasms"

The study is an observational multicenter evaluation of participants with colorectal cancer (CRC) who will receive longitudinal plasma ctDNA biomarker profiling in addition to their standard-of-care therapy and disease surveillance.

The purpose of this study is to determine whether primary radiotherapy can be omitted for the locally advanced rectal cancer with Magnetic Resonance Imaging (MRI) negative circumferential margin.

Colorectal cancer (CRC) is the second leading cause of cancer in Puerto Rico (PR) accounting for approximately 1,500 individuals annually, which represent 12% of all cancer cases in the island. The genetic epidemiology of CRC among Hispanic populations is not well studied, hence studies focused on large, well defined ethnic groups such as Puerto Ricans, are clearly warranted. The first step towards evaluating the molecular, environmental, and genetic epidemiology of CRC in PR is to establish a population-based familial CRC registry. The following specific aims have been proposed: Specific Aim 1: To prospectively identify and recruit approximately 300 CRC probands from two distinct geographical areas in PR (Metropolitan and Southern Region). From each proband the investigators will obtain a pedigree extended to second-degree relatives and cousins. Assuming 10% will be positive for a family history of CRC, the investigators will then recruit all 30 probands with a family history of CRC and a sample of 15 family-history negative probands and obtain: paraffin-embedded tumors blocks, blood samples, risk factor and food frequency questionnaires. Specific Aim 2: To prospectively identify and recruit selected relatives (parents, grandparents, and same generation relatives - cousins and siblings) from the 45 probands identified in Specific Aim 1. In addition, for siblings and cousins of probands (i.e. relatives in the same generation as the proband), the investigators will obtain risk factor and food frequency questionnaires, and for colorectal cancer cases, tumor blocks and pathology reports of their cancers. Specific Aim 3: To estimate from this pilot study the following parameters: (a) response rate of probands and their selected relatives; (b) response rate of participants for each data item; (c) family history of CRC and other cancers; (d) number of living first- and second-degree relatives and cousins of probands; (e) number of these relatives who live in the same household and region/municipality; (f) prevalence/distribution of selected risk factors from the administered questionnaires.

Molecular pathology of Colorectal Cancer: Investigating the role of novel molecular profiles, microRNA's and their targets in Colorectal Cancer progression

The purpose of this clinical research project is to explore potential biomarkers and validate the predictive and prognostic value of molecular signature in colorectal cancer.

Database of Institut Paoli-Calmettes patients diagnosed with colorectal cancer

The aim of this study is to review the treatment strategies of locally advanced colorectal cancer and locally recurrent rectal cancer in Västra Götaland during 1995-2016. The aim is to evaluate time trends and outcome both related to morbidity and cancer specific survival, we will also evaluate the results after advanced reconstruction. The study will identify the population using the Swedish ColoRectal Cancer Registry and then the individual patient charts will be reviewed. The data will be collected in a clinical record form covering demography (age, sex, co-morbidity, BMI and diagnoses) as well as treatments strategy, surgical procedures, re-operations, complications, readmissions, hospital stay, stoma formation etc.

This is a multi-site epidemiological study designed to monitor circulating tumor DNA (ctDNA) status in participants with Stage II (high risk)/III colorectal cancer (CRC) following resection/prior to adjuvant chemotherapy (AdCTx), during the course of AdCTx and for a period of 630 days thereafter, according to CRC stages and disease characteristics. Participants receive no therapeutic intervention as part of this study. This study will identify participants who might be potential candidates for the clinical trial BNT122-01 (NCT04486378), a study of RO7198457 after completion of standard AdCTx in this patient population. Based on the eligibility criteria for that trial, this study will identify participants with confirmed Stage II (high risk)/III CRC that are positive for ctDNA after resection and are therefore at high risk of disease recurrence to enrich the BNT122-01 study cohort. These participants will have the option to enter screening for BNT122-01 at Screening Visit 2 of that trial if they meet the eligibility criteria of BNT000-001 during screening. Data from the assessments from BNT000-001 will be carried across to the BNT122-01 trial where feasible.

The overall aim of the study is to increase participation rates in cervical cancer (CCU) and colorectal cancer (CRC) screening programmes in Denmark by offering home-based CCU and CRC screening to women who are overdue for one or both screening programmes when attending breast cancer screening

The role of gut microbiota in anastomosis insufficiency in patients operated for colorectal cancer and for peritoneal carcinomatosis is going to be investigated. This is a pilot study.