Active clinical trials for "Colorectal Neoplasms"

The study is intended to compare the detection rate obtained by performing G-EYE® high definition colonoscopy vs. the detection rate obtained by performing ECV high definition colonoscopy.

This study is designed to examine the impact of telephone-based colorectal cancer risk assessment on colorectal screening attitudes and behavior among previously unscreened adults ages 50 to 75.

To determine whether the presence of circulating/disseminated tumor cells (CTCs/DTCs) in the blood and bone marrow of colorectal cancer (CRC) patients with localized disease is a negative prognostic factor, and to find correlations with other clinical/pathological disease characteristics.

This is a randomized controlled trial to to determine whether direct, tailored messaging to patients prior to scheduling colonoscopy will increase patient adherence to provider recommendation for screening colonoscopy.

The Bowel Cancer Screening program was implemented to address the important issue of prevention and early detection of bowel cancer. Results from the first few years of screening and previous smaller studies show that while in its current form it will save many lives, there continue to be polyps and cancers in the upper large bowel (right side) that may be difficult to detect. There is some evidence that these types of polyps (serrated polyps) may be at least partly responsible for cancers missed at the initial colonoscopy and have a faster rate of growth to cancer compared to conventional polyps (adenomas). We propose to examine participants undergoing screening colonoscopy with the addition of a contrast dye ( a safe food colouring agent base already used in various bowel camera procedures in standard clinical practice). This has been shown to improve detection of conventional polyps significantly even though it is considered by some to be more time consuming (possibly taking a few minutes longer) and requiring specific training to undertake. We hope to study the feasibility of undertaking these procedures to improve detection and removal of these polyps within the bowel screening program and potentially inform further studies to assess the impact of improved detection and consequent potentially reduced incidence of interval or missed bowel cancers in longer term follow up. Thus the main aims of this feasibility study are to assess if this type of procedure would be feasible to implement and acceptable to participants, colonoscopists and the screening program and also assess any additional time or costs involved to inform the question of if a larger study should then be undertaken to conclusively prove or disprove the merits of this approach in terms of health economics, cancer detection and survival.

There are two parts to this study: (1) an information gathering phase leading to the development of new educational materials; and (2) a study to test the newly developed material. The information gathering phase has been completed. The purpose of this part of the research study is to test the usefulness and acceptability of new educational materials investigators have developed. Investigators will compare the new educational material to another widely available educational brochure. The goal is to see if the new educational material will change knowledge and behaviors about colorectal cancer and colorectal screening.

Little is known about the impact of risk assessment tools on decision-making by patients and clinicians. In particular, even though the NCI Colorectal Cancer Risk Assessment Tool is one of the most prominent risk assessment tools available, no study has quantified its usability or impact on decision-making or uptake of screening. In this study, we will measure patients' satisfaction with the NCI CRC RAT, their perception of its usability and helpfulness, and its impact on their decision-making and behavior. In addition, we will assess the impact of adding information about their chance of having an advanced adenoma.

This research study is about determining how well a Technically Improved Colonoscope from Olympus works in helping the doctor in guiding the scope through the large bowel or colon. When a doctor performs a colonoscopy he guides or inserts the scope from the rectum to the appendix where the small bowel ends and the large bowel begins. There are points during this insertion where there are turns in the colon which can create a loop in the colonoscope. These loops can stretch the colon and create some discomfort and also require special maneuvers by the nurse or patient to help reduce or minimize the loop. Thus, reducing the looping will make it more comfortable for the patient and more efficient for screening for polyps. The purpose of the study is to examine this colonoscope and compare it to the traditional adult colonoscope (Olympus CF-H180). The investigators hypothesis is that this colonoscope will function better with regard to insertion of the scope from the rectum to the cecum.

The object of this study is to evaluate the superiority of aprepitant therapy with a 5HT3-receptor antagonist, dexamethasone and aprepitant compared to standard therapy with a 5HT3-receptor antagonist and dexamethasone for prevention of nausea and vomiting in first course chemotherapy.

The purpose of this study is to compare the performance of a new prototype colonoscope with a standard colonoscope used world-wide today. The prototype colonoscope is more flaccid with a smaller diameter than the standard colonoscope. The hypothesis to be tested is that the prototype will improve negotiation of sharp bends and inflict less discomfort or pain to the patient. Both colonoscopes are manufactured by the same company.