Active clinical trials for "Colorectal Neoplasms"

The incidence of colorectal cancer (CRC) is on the rise on a global scale. The number of cancer-related deaths related to CRC is also rising to an alarming level. This picture is similarly seen in Egypt where the incidence of colorectal carcinoma is increasing annually, moreover, CRC in Egypt exhibits an alarming characteristic which is the affection of much younger patients than their counterparts worldwide. Fortunately, the early detection of CRC and its precursor (adenoma) has been shown to markedly decrease morbidity and mortality related to this tumor, this has prompted the development of robust screening programs for CRC in several western countries. The implementation of a CRC screening program in Egypt has been hampered by the low compliance of the patients and the relatively high cost of colonoscopy. There is a need for an affordable, non-invasive, simple, accurate and socially accepted screening test to allow such a program to succeed in Egypt. Recent studies have shown that DNA is the future target of screening tests for several malignancies. Particularly for CRC a few preliminary studies have shown encouraging results with separate DNA methylation markers both in blood and stool. In our efforts to develop a screening test with the criteria stated above, the investigators have decided to join the forces of 2 of the largest medical centers in Egypt and the middle-east: Kasr-Alaini hospital and the National cancer institute (NCI). The investigators plan to test a panel of 7 DNA methylation markers in peripheral blood for their performance as an early marker for CRC and colorectal adenomas. Data from this study will pave the way for the development of a screening test for CRC "tailored" to the Egyptian population, moreover, it will supply essential data about the genetic alterations occurring in CRC in Egyptian patients.

Recent basic and clinical research on the circulating tumor cells (CTCs) in CRC patients takes potential diagnostics, prognostics, and applications into consideration, especially the molecular detection of CTCs in peripheral blood. Moreover, identification of therapeutic targets on CTCs and real-time monitoring of CTCs in cancer patients undergoing systemic therapy are the most important future clinical applications. CTCs measures may be useful to guide change in treatment decisions.

Objective: To evaluate the role of regional lymphadenectomy in patients with colorectal cancer liver metastasis. Background: Lymph node status is 1 of the most important prognostic factors in oncologic surgery; however, the role of lymph node dissection remains unclear for colorectal cancer liver metastasis.

Aim of the present study is to investigate whether baseline or early post-treatment (one month after treatment commencement) frequency of peripheral T regulatory lymphocytes (Tregs OR CD4+/CD25high/FOXP3+ T cells), known to suppress antitumor immune response, may influence long-term clinical outcome (i.e. radiological response, progression-free survival or overall survival) in metastatic colorectal cancer patients treated with a standard first-line chemotherapy including fluorouracil, irinotecan and bevacizumab

This is a phase III B, prospective, interventional, open-label, single-arm, multicenter study to provide regorafenib to subjects diagnosed with metastatic colorectal cancer who have failed after standard therapy and for whom no therapy alternatives exist, in the time between positive results and approval / availability on the market, and to collect safety data for regorafenib until market access. Regorafenib is an oral (i.e. taken by mouth) multi-targeted kinase inhibitor. A kinase inhibitor targets certain key proteins that are essential for the survival of the cancer cell. By specifically targeting these proteins, regorafenib may stop cancer growth. The growth of the tumor may be decreased by preventing these specific proteins from functioning. The primary endpoint of this study will be safety.

Although widely used, there is a lack of evidence concerning diagnostic value of C-reactive protein (CRP) and white blood cell counts (WBC) in the postoperative course. The aim of this study was to evaluate the diagnostic accuracy of CRP and WBC for postoperative inflammatory complications after open resection of colorectal cancer.

To establish whether provision of numerical data, framed as event rates and illustrated by pictograms, and including figures for all-cause mortality, affects subjects' attitudes to colorectal cancer (CRC) screening. Design and Intervention. Randomised questionnaire and telephone study comparing the responses of a control group given the standard National Health Service (NHS) CRC screening information with the responses of an intervention group given the same information but enhanced with additional numerical and pictorial information. Setting

Aim of the study is to evaluate if Temperament, Anxiety and Depression can affect Immunity and influence Survival in Colorectal Cancer Patients

Both ulcerative colitis and Crohn's colitis are associated with an increased risk of developing colorectal cancer (CRC). Although the increased risk of CRC in colitis patients is well established, several studies show that the risk varies widely between patients, depending on the presence of risk factors. Recently, several of these risk factors were implemented in the updated British guidelines for surveillance which are now used to determine surveillance intervals in our center. The new guideline recommends stratification of patients in a high, medium or low risk group depending on the presence of clinical and endoscopic risk factors and to adjust the surveillance interval accordingly. Although these guidelines provide a first step towards an individualized surveillance regimen, current data regarding risk factors for IBD (inflammatory bowel disease) -associated CRC are solely based on retrospective studies. Prospective data on the phenotype and genotype reliably predicting the risk of CRC is needed to further optimize surveillance in the future. Objectives: To confirm established and identify new predictive factors for colorectal cancer in a prospective cohort of IBD patients undergoing regular surveillance. Dysplasia or colorectal cancer will be the primary outcome. To provide evidence that mucosal healing results in a significant reduction of colorectal dysplasia/neoplasia in IBD patients and that this is associated with 5-ASA (5-aminosalicylic acid) or anti-TNF (tumor necrosis factor) maintenance therapy. Study the expression of several tumor markers in biopsies, blood and faeces at baseline and determine whether expression of these markers can predict dysplasia or colorectal cancer development during follow-up.

This observational, prospective, multicentric study is being conducted to record the prevalence of KRAS mutations in the Argentine mCRC population.