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Active clinical trials for "Colorectal Neoplasms"

Results 4201-4210 of 4253

RAS Mutation Testing in the Circulating Blood of Patients With Metastatic Colorectal Cancer

Colorectal Cancer

This study will evaluate the concordance of RAS mutation detection between the results obtained from circulating tumor DNA and those obtained with the "standard" method (testing from tumor tissue).

Unknown status7 enrollment criteria

Comprehensive Immune-landscape in Localized Colorectal Cancer

Colorectal CancerImmune Landscape

Surgery still remains the mainstay of treatment for localized colorectal cancer. However, nearly 30% of patients with localized colorectal cancer (stage II and stage III) will present with recurrence. Tumor progression is mediated by both intrinsic genetic changes and by extrinsic epigenetic and host environmental factors, including interactions with the immune system. Several studies demonstrated that tumor infiltrating memory T-cells and type, density and location of infiltrating T cells are better predictors of disease-free survival in patients with CRC compared to the standard TNM staging. These data suggest that tumor invasion and progression are more accurately predicted by immune response in the primary tumor. In addition, mismatch repair (MMR)-deficient tumors are characterized a priori by a higher frequency of tumor infiltrating lymphocytes and are associated with significantly improved prognosis. Recently, Stotz et al showed that the preoperative lymphocyte to monocyte ratio in peripheral blood samples predicts clinical outcome in patients with stage III colon cancer. So far there is no comprehensive analysis of the immune-landscape in CRC. The aim of the current project is to identify a comprehensive panel of immunomarkers in localized colorectal cancer (stage II and stage III) applicable for the detection of patients at high risk of recurrence. For the first time, specific tumor-infiltrating immune cells, mismatch repair protein expression in tumor tissue and preoperative blood based inflammatory markers from routine blood counts in corresponding peripheral blood samples and known clinicopathological features will be correlated with outcome in 300 localized CRC patients.

Unknown status3 enrollment criteria

Psychological Well-being Outcomes in Disease-free Survivors of Colorectal Cancer Following Curative...

AdaptationPsychological1 more

The purpose of the study is to investigate whether there are prognostic factors regarding the mental and functional adjustment of colon cancer patients following curative surgery. Patients will be selected using specific inclusion criteria. Prognostic factors investigated include personality characteristics, initial distress, medical, social and economic factors. The utmost purpose of the study is to assist clinicians with the timely identification of vulnerable patients in order to ensure their proper management and their optimal adjustment. Moreover this is the first study using the Distress Thermometer in Greek patients with cancer.

Unknown status6 enrollment criteria

Liver MRI for Colorectal Cancer Liver Metastasis: Comparative Effectiveness Research for the Choice...

Colorectal Cancer

Magnetic resonance imaging (MRI) has been widely used for problem-solving tool in the evaluation of hepatic lesions, and it has been shown to have better sensitivity than CT for detection of colorectal liver metastases, especially for lesions which are smaller than 1 cm. After introduction of a liver-specific hepatobiliary MR contrast agent, gadoxetic acid, gadoxetic acid-enhanced MRI (Gd-EOB-MRI) has been increasingly used for evaluation of liver lesion including CRLM. However, compared to conventional MRI with extracellular contrast agent (ECA-MRI), Gd-EOB-MRI has different pharmacodynamic characteristics, and is more expensive due to higher cost of gadoxetic acid and needs longer scan time to obtain hepatobiliary phase which is generally acquired 15 to 20 minutes after contrast injection. The purpose of this study was to compare the clinical outcome and diagnostic performance of Gd-EOB-MRI and ECA-MRI for evaluation of focal hepatic lesion in newly diagnosed colorectal cancer.

Unknown status10 enrollment criteria

Cardiotoxicity and Risk Factors in Patients With Colorectal Cancer Receiving Fluoropyrimidine

Colorectal Cancer

observational prospective study, designed for patients with colorectal cancer receiving for the first time 5-FU or capecitabine, with or without other chemotherapy combinations.

Unknown status7 enrollment criteria

Genotyping of Metastatic Colorectal Cancer Patients for Precision Medicine Clinical Trials

Metastatic Colorectal Cancer

The goal of delivering the right drug to the right cancer patient (precision medicine) requires a detailed understanding of how genomic alterations are linked to drug response. The purpose of this study is to intercept at point-of-care a large cohort of newly diagnosed mCRC patients to determine if it is possible to obtain personalized genetic information from each subject's tumor (tissue and blood) to triage treatment choices. In case of target positivity, patients will be conveyed, whenever possible, to self-standing, independent, hypothesis-driven POC trials as soon as they exhibit resistance to standard of care treatment.

Unknown status11 enrollment criteria

Study of Universal Screening for Lynch Syndrome in Chinese Patients of Endometrial Cancer

Colorectal NeoplasmsHereditary Nonpolyposis1 more

In patients diagnosed as endometrial cancer by thorough pathologic examinations, Lynch syndromes are screened by (1)immunohistochemical staining (for MLH1, MSH2, MSH6 and PMS2), (2) tests of microsatellite instability and (3) clinical criteria (Amsterdam I or II criteria and Bethesda criteria). For patients with any suspicious discoveries of Lynch syndromes from aforementioned screening methods, a molecular diagnosis with next-generation sequencing for mismatch repair genes (MLH1, MSH2, MSH6, PMS2, and EPCAM) is given to confirm Lynch syndromes. For patients of Lynch syndromes and endometrial cancer, relatives of blood lineage are tested by Sanger method or qPCR to find out carriers of mutation genes of Lynch syndromes.

Unknown status3 enrollment criteria

Comparative Effectiveness of FITs With Colonoscopy

Colorectal Cancer

Colorectal cancer is a preventable and/or a treatable cancer, but at least 43% of the United States population is not up-to-date with screening. Although 90% of colorectal cancer screening is done using colonoscopy, most other countries use fecal immunochemical tests, reserving colonoscopy for those with a positive fecal immunochemical test. This project will provide the foundation for a paradigm shift for colorectal cancer screening in the United States by identifying how well 5 different FITs work for detecting screening relevant neoplasia, thus reducing morbidity and mortality for colorectal cancer.

Unknown status2 enrollment criteria

Mechanism and Process Regulation for Colorectal Tumors

Colorectal CancerAdenoma

This study focused on the key nodes, molecular events and regulatory mechanisms of intestinal microecological disorders that affect the malignant transformation of intestinal epithelial cells into tumors during the occurrence and development of colorectal cancer.

Unknown status62 enrollment criteria

EORTC-endorsed, Prospective European Multicenter Imaging Survey and Protocol

Metastatic Colorectal Cancer

A prospective, multicenter imaging Delphi survey among European radiological societies for mCRC imaging standardization.

Unknown status3 enrollment criteria
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