Active clinical trials for "Colorectal Neoplasms"

In this study, we aimed to identify the different histopathological features of tumors with microsatellite instability (MSI) compared to microsatellite stable (MSS) in patients who underwent surgery for colorectal cancer. We also planned to determine how MSI affects prognostic parameters.

To test the applicability of the Clavien-Dindo Classification (CDC) in an LMIC setting and to compare the prevalence and severity of complications in patients <60 and ≥60 years of age a retrospective medical records review is used.

The primary aim of this project is to examine the association between having a long-term condition (morbidity) and screening uptake for colorectal cancer. Whilst this project will consider all morbidity and co-morbidities, there will be a particular focus on common mental health disorders, such as depression and anxiety. The secondary aim of this project is to examine other factors that may influence uptake rate. Information on a wide array of potential factors is available for this project. These include demographics (age, gender, ethnicity), socio-economic status (deprivation, education status) and lifestyle (smoking status, drinking patterns, degree of exercise). In addition, any potential moderating effect of these factors on the association between morbidity and screening uptake shall be explored. In summary, the following shall be explored: Uptake rates by type of mental health disorder. Uptake rates by chronic physical health problems. Associations between uptake, morbidity (both physical and mental) and broader health determinants such as demographics, socio-economic status and lifestyle.

This is a national, multicentric, prospective, observational trial. The decision to prescribe FOLFOX or FOLFIRI plus panitumumab or FOLFOX or FOLFIRI plus cetuximab must have been freely taken by the clinician prior to the study entry for each patient included. Each physician will see his/her patients within the context of routine visits, without any special visit being organised for the purposes of the study. Therefore, the doctor-patient relationship and patient follow-up are not modified. Physicians are totally free to decide on their patients' therapeutic management. EORTC QLQ-C30 and DLQI questionnaires will be completed by the patients at baseline (Day 1 of Cycle 1), at the first day of every other cycle (every 2 weeks) thereafter, and at ""End of Study Visit" (within 28 days from the end of treatment with anti-EGFR or withdrawal from study for any reason). Before every cycle, adverse events will be recorded and graded according to NCI CTCAE v4.0. Treatment's modifications in terms of cycles' delay, dose reductions or drugs' interruptions will be recorded. Concomitant approaches to prevent or treat dermatological toxicities during the treatment will be registered.

Freenome is using a type of artificial intelligence, called machine learning, to identify patterns of cell-free biomarkers in blood to detect cancer early. The purpose of this study is to develop and validate a blood-based assay to detect colorectal cancer by collecting blood and stool samples from healthy patients undergoing routine screening colonoscopy and from patients recently diagnosed with colorectal cancer or advanced adenomas.

Serrated polyposis syndrome (SPS) is a condition characterized by the presence of multiple serrated polyps (SPs) spread throughout the colorectum and is associated with an increased risk of colorectal cancer (CRC). SPS is defined by the World Health Organization (WHO) as the presence of at least 5 SPs proximal to the sigmoid colon, of which 2 ≥10 mm in size (WHO criterion 1), the presence of at least 1 SP proximal to the sigmoid and a first degree relative with SPS (WHO criterion 2), or more than 20 SPs spread throughout the colon (WHO-criterion-3). In practice only WHO 1 and WHO 3 criteria are used. The condition seems rather common and more prevalent than other polyposis syndromes such as familial adenomatous polyposis (FAP) (1:13.000). Several retrospective studies have shown that patients with SPS have an increased risk of developing CRC during endoscopic surveillance. Close endoscopic surveillance to prevent malignant progression of polyps has therefore been advised by several expert groups. However, due to a shortage of prospective data the optimal treatment and surveillance approach is largely unknown. The current study aims to prospectively evaluate the effectiveness and feasibility of a personalized surveillance protocol for patients with SPS to prevent CRC that is being used in several Dutch and Spanish hospitals. Furthermore, the polyp burden, colonoscopy complication risk and rate of conversion from endoscopic surveillance to colorectal surgery will be examined. For this purpose, all eligible SPS patients are prospectively enrolled 2013 onwards, and surveyed according to the study protocol. Based on the amount and characteristics of the polyps encountered during surveillance colonoscopy, the next colonoscopy will be scheduled after either 1 year or 2 years. Patients will undergo surveillance after 1 year in case of: Advanced adenoma (≥ 10 mm and/or high-grade dysplasia and/or 25% villous component) Serrated polyp ≥ 10mm and/or SP containing dysplasia Cumulative ≥5 sessile serrated polyps (SSPs) (irrespective of size), adenomas (irrespective of size) and/or hyperplastic polyps (HPs) ≥5mm Surgery needed during previous (clearing or surveillance) endoscopy Patients will undergo surveillance after 2 years in case none of above is reached

The investigators designed a prospective study to evaluate the predictive ability of detection of mutations in genes involved in carcinogenesis of the colon (eg hMLH1, K-Ras, B-Raf, ccfDNA) in a sample of Greek population presents for conducting colonoscopy in the context of screening under international CRC prevention instructions. This investigation will be carried out in individuals in normal risk in order to study specific mutations (in blood and tissue) to draw reliable conclusions about whether we can detect (with greater sensitivity and specificity) patients with precancerous lesions or CRC with a simple blood test thereby reducing the cost and side effects of repeated endoscopic procedures.

This randomized research trial studies the Community-based Health Information Technology (HIT) Tools for Cancer Screening and Health Insurance Promotion (CATCH-UP) intervention in increasing cancer screening and prevention care in uninsured patients at community health centers. The CATCH-UP intervention may contribute to increased rates of insurance coverage, leading to improved cancer screening and prevention rates in community health care settings, and general recommended preventive care.

The aim of this study is to identify the effect of adjunctive metformin on recurrence of non-DM Stage II High-risk/ III colorectal cancer. This study is open-label randomized controlled study. The primary endpoint is to compare the 3-year disease free survival between metformin group and non-metformin group. The secondary endpoint is to compare the 5-year overall survival and disease specific survival between two group, to identify the safety of metformin, and to compare the recurrence rate of polyps after polypectomy between two groups.

200 patients with colorectal cancer will be investigated before surgery and 100 of them after surgery. Investigations will include polysomonographic sleep apnea recordings during one night, lung function measurements, blood gas samples and questionnaires. Controls: Men and women from two population-based cohort studies