Active clinical trials for "Colorectal Neoplasms"

Water immersion insertion has been documented to decrease procedure-related discomfort during colonoscopy. There was used warm water infusion for colonoscope insertion in most of the water immersion colonoscopy trials. The investigators have been using room temperature water (20-24°C) for water immersion and the investigators did not notice any drawback of it. In our opinion, it is simpler and cheaper option for water immersion colonoscopy and proof of its efficacy and safety could support the use of water immersion technique in routine practice. The primary endpoint is cecal intubation time and the investigators suppose that the use of warm water infusion does not shorten it significantly. Patient comfort during colonoscope insertion, water consumption, length of the scope while reaching the cecum, need for external compression, need for positioning of the patient and endoscopist´s difficulty with colonoscopy will be also assessed.

This study is being done to see if teaching physicians and people who are at least 50 years old and have not been screened within guidelines for colorectal cancer about the importance of colorectal cancer screening will increase screenings for colorectal cancer. The researchers want to understand what ways will work best to motivate and educate both patients and the doctors and nurses who care for them.

Vitamin D's ability to prevent colorectal cancer (CRC) has been suspected for nearly 30 years, but has never been directly studied in humans. The biologically active version of vitamin D, 1,25(OH)2D3, cannot be readily used in humans because of its tendency to cause serum calcium levels to rise. In contrast, 25(OH)D3 (ie calcifediol) does not have this side effect. The investigators previous research suggests that the enzyme necessary to convert 25(OH)D3 (calcifediol) into active 1,25(OH)D3 is present in cells lining the large intestine (colon). Aberrant crypt foci (ACF) are very small (ie microscopic) collections of abnormally shaped cells that are a commonly used marker of CRC risk. Screening colonoscopy at UIC routinely uses methods that allow ACF counting to be done as a part of standard practice. ACF's are not fixed, like polyps or cancers, but can disappear as a person's risk for developing CRC decreases. The investigators propose giving patient's with 10 or more ACF's 25(OH)D3 (calcifediol) or placebo, and determining if there is a drug-dependant decrease in ACF number. The primary objective is to determine whether 25(OH)D3 (calcifediol) supplementation, compared to placebo, causes significant reduction of ACF number from baseline levels. The primary endpoint will be change in ACF number.

Parent study: A Coordinated Approach to Cancer and Health (CATCH), was designed to compare the efficacy of two intervention arms (described below) intended to increase breast, cervical, and colon cancer screening rates among patients served by community health centers. A central focus of CATCH is to evaluate sustainable strategies for maximizing cancer screening rates among populations facing significant cancer disparities. CATCH was conducted in partnership with the large health clinic in Massachusetts, which serves a largely Hispanic low income population. Focusing on the use of an Interactive Voice Response (IVR) telephone technology system, the study is examining the extent to which the IVR, when developed in a culturally sensitive and appropriate manner (focus groups will be conducted to inform the intervention), can improve breast, cervical and colon cancer screening rates compared to a control group. Furthermore, we plan to determine if pairing IVR with telephone calls from a prevention care coordinator (PCC) will result in higher screening rates (when compared to the IVR only group). We will determine the cost-effectiveness of IVR alone vs. IVR + PCC. Substudy: We conducted a substudy of the parent study, looking at a comparison of return rates of two colorectal cancer screening home test kits: Fecal Occult Bood Tests (gFOBTs) and Fecal Immunochemical Tests (FITs). As well we surveyed people who pick up one of these two types of tests to assess barriers and facilitators of returning the completed kit to the health center for assessment.

This study aims to determine the oncological effectiveness of adjuvant HIPEC, using intraperitoneal oxaliplatin with concomitant i.v. 5-FU/LV, following a curative resection of a T4 or intra-abdominally perforated Colon cancer in preventing the development of peritoneal carcinomatosis in addition to the standard adjuvant systemic treatment. Hypothesis: The hypothesis is that adjuvant HIPEC preceding routine adjuvant systemic therapy using i.p. oxaliplatin with concomitant i.v. 5-FU/LV following a curative resection of a T4 or intra-abdominally perforated colon cancer reduces the development of peritoneal carcinomatosis in comparison to standard adjuvant systemic treatment alone.

The investigators plan to conduct a multi-center, randomized controlled trial to investigate the efficacy of cap-assisted chromoendoscopy as a screening test for detection of colorectal polyp. This study will be performed using web-based research network, e-VELOS in Korea.

The investigators are involved in a research program to understand how different diets may affect the risk of colorectal polyps and cancer. To that end, the investigators are conducting a study of a western style diet versus a "prudent style" diet in which volunteer subjects are provided a different diet for 2 separate 4 week periods at the Rockefeller University Hospital. During one of these 4 week inpatient periods they receive a Western style diet and during the other 4 week inpatient period they receive a "Prudent style" diet. The investigators will determine changes within the colon as a result of the two different diets. A more detailed description of the study is provided below.

Develop and evaluate in a randomized trial an educational small group intervention to increase colorectal cancer screening among Filipino Americans.

The purpose of the study is to determine if a Web-based intervention increases physician rates of colorectal cancer recommendation rates in a group of physicians participating in the American Board of Internal Medicine's Maintenance of Certification Program. This study will also compare the content of practice improvement plans submitted by the diplomats in each study arm to determine the components of the plans that are associated with colorectal cancer rates.

This pilot study will evaluate the safety and effectiveness of chemo-radiotherapy comprising a regimen of FOLFOX6 chemotherapy plus SIR-Spheres yttrium-90 microspheres (chemo-radiotherapy, also known as "chemo-SIRT"), in combination with the biologic therapy Bevacizumab (Avastin), for the first-line treatment of patients with liver metastases from colorectal carcinoma in whom surgical resection is not feasible.