Active clinical trials for "Colorectal Neoplasms"

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 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.

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.

This is an intervention study to increase colorectal cancer screening and physical activity in members of African-American churches who are 50 years old and older. The control arm receives the Body & Soul program, a program to increase fruit and vegetable intake. The investigators hypothesize that those receiving the intervention, which includes four tailored newsletters and peer counseling, will be more likely to be screened if not up-to-date, and more likely to increase physical activity if screening was up-to-date at baseline, than controls.

This study will investigate whether patient navigation can increase rates of colorectal cancer screening among linguistically and culturally diverse disadvantaged patients served by urban community health centers.

The proposed study seeks to investigate the impact of a culturally targeted print educational intervention on rates of colorectal cancer (CRC) screening via colonoscopy among Hispanics. If, as expected, the addition of culturally targeted materials to best clinical practices as compared to a) best clinical practices plus standard materials or b) best clinical practices alone leads to higher rates of CRC screening via colonoscopy then the culturally targeted print educational materials can be easily disseminated among this rapidly growing minority group who have low rates of CRC screening and whose disease is detected at later, less curable stages.

The objective of the SIM trial is to investigate whether using the Surefire Infusion System during holmium-166 radioembolization increases the posttreatment tumor to non-tumor activity concentration ratio, compared with using a standard end-hole microcatheter.

This study involves 3 phases that modifies current Interactive Preventative Health Record-Colorectal Cancer Screening (IPHR-CRCS) modules to address each patient's individual colorectal cancer screening (CRCS) knowledge, attitudes, preferences, and test-specific barriers. The study will engage patients, ages 50-75 years who are non-adherent to CRCS, to assess their CRCS test preferences and corresponding test-specific barriers in "real time". Based on patient characteristics (e.g. age, personal and family history, physician CRCS recommendation, CRCS test preferences, top test-specific barriers), tailored messages/videos will appear in the pop-up screens to address/reduce the top patient-reported, test-specific CRCS barriers while incorporating an action plan for CRCS adherence. The investigators hypothesize that modifying the IPHR-CRCS module to address each patient's individual CRCS knowledge, attitudes, preferences, and test-specific barriers will further increase CRCS.

Magnesium sulphate is given to the patients during the colorectal cancer surgery under the hypothesis that it would attenuate the postoperative hypercoagulability. The investigators intend to characterize the changes of coagulation in colorectal cancer patients by using the point-of-care device after the infusion of magnesium sulphate.

This study is aimed to analyze the outcomes after conventional endoscopic submucosal dissection (ESD) and optimized ESD with snaring (oESD-S) for colorectal neoplasm that is more than 20 mm in diameter of laterllay spreading tumor or flat elevated lesion without stalk. Optimized ESD with snaring means submucosal dissection followed by snaring when narrowed circumference of the remained submucosal tissue beneath the lesion is less than 5 mm in diameter with snaring, then resected by using an electric current. The investigators expect optimized ESD with snaring can provide more time-saving procedure with comparable en-bloc resection rate and perforation rate, when compared with the conventional ESD method.