Active clinical trials for "Colorectal Neoplasms"

To study whether or not total mediastinal lymph node dissection in conjunction with pulmonary metastasectomy from colorectal cancer is associated with improved survival compared to pulmonary metastasectomy only.

Gum chewing group will have less ileus and early resume of bowel motion than control group.

The purpose of our study is to establish the accuracy of the perfusion MRI parameters and the availability of the VEGFR2 signaling assay using phosphospecific flow cytometry in predicting the response of liver metastasis from colorectal cancer to treatment with antiangiogenic agent.

The risk of recurrence in stage III and IV of colorectal cancers (CRC) is high during the three years following the tumoral resection with curative aim. Therefore, a prolonged follow-up and an intense monitoring are recommended to detect these recurrences precociously. Nevertheless, current consensual morphological and biological examinations are not very contributory, of difficult interpretation and expensive. The metabolic imagery in tomoscintigraphy by emission of positron coupled with the scanner, called PET-TDM, allows to identify more specifically recurrences, analyzes the whole body, detects hepatic metastasis more precociously and give some benefice for early diagnosis of lymph nodes recurrence. The principle purpose of this study is to evaluate if the systematic follow-up per PET-TDM allows detecting more often recurrences accessible to a curative surgery. We make the hypothesis that the systematic practice of PET- tomodensitometry (TDM) during the follow-up of CRC allows to decrease non curative recurrences appearance during the 3 years follow-up after a curative surgery.

We hypothesized that aberrant crypt foci (ACF) are precursors of colon cancer; their prevention would correlate with cancer risk and their elimination would reduce that risk. In this study we wished to (1) establish the feasibility of stain-enhanced magnification colonoscopy, (2) determine whether colorectal cancer is asociated with increased numbers of ACF, and (3) investigate the natural history of ACF and the durability of their elimination.

We will evaluate if we can increase colorectal cancer screening rates by directly sending screening tests to patients rather than waiting for them to come to clinic visits. We are also evaluating a new test--fecal immunochemical tests--which does not require patients to make dietary or medication changes. We will see if patients are more likely to complete these tests than the standard fecal occult blood tests.

Colorectal cancer is one of the most frequent and it prognosis is still serious. In France, diagnosis and screening applicated in numerous departements, and now in a path of generalization to the all country, is based on combination of searching blood into bowel movements (Haemoccult) for the screening of population with medium risk (age between 50 to 74 years old)and colonoscopy for the screening and diagnosis of pre-cancerous lesions for the patients with a high risk.Even if the efficiency of this strategy is proved, searching blood into the bowel movement by Haemoccult is still imperfect (a lot of false negative). Colonoscopy is not an ideal tool for screening. Indeed, its acceptability is not perfect and it constitute an invasive method, with complications, with a compulsory general anesthesia, implicating a high cost. The alternative of a screening method based on a non invasive method is required.

The objective of this study is to compare the performance characteristics or accuracy of different in-home screening tests for colorectal cancer (fecal occult blood tests), among patients without symptoms of colorectal cancer. Patients who meet study eligibility criteria and agree to participate in the study are asked to perform one guaiac and two immunochemical fecal occult blood tests at home prior to their colonoscopy. After the patient has completed and sent in the test kits, the patient then undergoes their previously scheduled colonoscopy. Accuracy and performance characteristics for each type of fecal occult blood test, including sensitivity, specificity, test positivity rate and positive predictive value for advanced colorectal neoplasia (advanced colorectal polyps) or colorectal cancer, will be estimated by comparing the fecal occult blood test results with the results of the colonoscopy.

The main objective is to evaluate the impact of the recruitment and training of a peer-navigator on the participation rate of colorectal cancer screening among underserved area. The role of the navigator is to establish an intervention culturally-tailored to the inhabitants in order to promote the Fecal Occult Blood test (FOBT) and accompany the inhabitants to complementary exams, if needed.

There has been no report on whether the patients with colorectal cancer who are also inactive Hepatitis B Carriers should receive Prophylactic Use or preemptive Use of an Anti-viral Drug Entecavir. This open, randomized controlled clinical trial aims to compare the impact of the prophylactic use or preemptive use of an anti-viral drug Entecavir on the outcomes of patients with colorectal cancer who are also inactive hepatitis B carriers during chemotherapy and the subsequent follow-ups.