Active clinical trials for "Colorectal Neoplasms"

The risk of CRC in families of patients with CRC is well established, but it is less well-defined for families of patients with adenomas. Screening recommendations to families when an index subject has an adenoma on colonoscopy are not clear. Previous studies demonstrating an increased CRC risk in close relatives of subjects with adenomas were mostly limited by the lack of a suitable comparison group, did not offer colonoscopy to all relatives or did not have verification on true status of adenoma history in the relatives. A systematic review has reported that most studies cited for risk of CRC in relatives with adenomas have not addressed the intended question. Currently International guidelines recommended screening colonoscopy in close relatives and at a younger age when there is a proband with an adenoma, however this recommendation has not been fully supported by all societies due to the lack of robust evidence. This gap in knowledge highlights the need of well-designed and adequately powered studies to estimate the risk of colorectal neoplasms in subjects who have first-degree relatives with adenomas. Up to 30% of average risk asymptomatic individuals 50 years or older will have at least one adenoma. Based on current guidelines, nearly half the population will be counseled to undergo a colonoscopy from 40 years old based on a positive family history of adenoma. This will have enormous burden on the healthcare system if screening is implicated in all these individuals. Secondly, not all adenomas carry the same risk. Large or villous adenomas are associated with a nearly 70% increased risk of CRC in first degree relatives (FDR) whereas small adenomas may be associated with a modest increased risk 19. It is therefore important to determine the risk of colorectal neoplasms in families of subjects with non-advanced adenomas to justify more intensive screening in these individuals. Investigators hypothesize that first-degree relatives of patients with non-advanced adenoma have an increased risk of both CRC and adenomas. Investigators aim to quantify this risk, and to identify other individual patient or neoplasm characteristics that may contribute to this increased risk. In addition, Investigators aim to determine molecular alteration profiles of colonic adenoma in siblings of patients with advanced neoplasm.

Although there is evidence for reducing complication rate and improving recovery after the implementation of Enhanced Recovery After Surgery (ERAS) protocols into colorectal surgery, most published papers include patients undergoing open resections. The aim was to analyse factors affecting recovery and length of stay (LOS) in patients after laparoscopic colorectal surgery for cancer combined with ERAS protocol.

The primary aim of this study is to determine whether an improvement in aerobic fitness, as judged by an increase in VO2peak, can be achieved within 31 days via HIT programme in a group of older, colorectal cancer patients.

The investigators recently identified promiscuous HLA-DR-derived epitopes from the human telomerase reverse transcriptase (TERT) called universal cancer peptides (UCP), to study tumor-specific CD4+ T cell responses. The investigators found high frequency of naturally occuring UCP-specific TH1 cells in long term survival of metastatic colorectal cancer (CRC) previously treated by 5 fluoro-uracil -oxaliplatin (Folfox) +/- bevacizumab regiment (Godet et al. OncoImmunology 2012 and unpublished data). Epitopes-CRC02 is a French prospective multicenter study which will evaluate the post chemotherapy and post surgery modulation of host tumor-specific CD4 TH1 cell responses in metastatic colorectal cancer patients and their correlation with progression-free survival.

This study is aimed to evaluate the performance of the Micromedic CD24 assay in identifying colorectal adenoma using Western blot and ELISA assays. These assays are designed to detect CD24 protein in peripheral blood leukocytes (PBL). Elevated levels of CD24 may be indicative of colorectal adenoma (inclusive of optically detectable early adenoma to late adenoma, and cancer).

Colorectal cancer is a common disease worldwide. It is now thought that colorectal cancer cells arise from stem cells where the genetic material regulating growth and division of the stem cell has become defective. This leads to unregulated production of cells which in turn have defective genetic information and cancer formation. Research into colorectal cancer is hampered by the fact that studies must take a very long time to produce results and be very large if the development of a cancer is the endpoint. Therefore alternative methods of quantifying the risk of developing a cancer are required so trials can be a realistic size and be completed in a realistic time frame. The investigators have previously identified several candidates for these 'biomarkers'. The next stage in proving or disproving these as useful biomarkers is to test their response to a dietary agent that the investigators know reduces the risk of colon cancer.

RATIONALE: Studying samples of tissue in the laboratory from patients who received cetuximab may help doctors understand and predict how well patients will respond to treatment. PURPOSE: This research study is studying biomarkers in predicting response to cetuximab in patients with advanced colorectal cancer.

The aim of this double-blinded prospective randomised trial is to explore the potential benefits of early postoperative administration of Synbiotics (combination of prebiotics and probiotics) to patients who have undergone colectomy for cancer. The patients are randomised to either synbiotics or placebo administration at the day they are able to tolerate po liquid diet and for 15 days thereafter. Primary end points of the study will be: Assessment of gastrointestinal function-related quality of life at 1, 3 and 6 months postoperatively by the use of the validated questionnaire GIQLI (Gastrointestinal Quality of Life Index) Secondary end points will be: -Assessment of functional bowel disorders (diarrhea, constipation, etc) at 1, 3 and 6 months postoperatively based on the respective domains of the validated instrument EORTC QLQ-C30

RATIONALE: Questionnaires that patients can use to assess skin toxicities related to treatment may help identify the intermediate-and long-term effects of cetuximab, panitumumab, or erlotinib hydrochloride. PURPOSE: This trial studies the validation of a cancer questionnaire for skin toxicities in patients with colorectal or lung cancer receiving cetuximab, panitumumab, or erlotinib hydrochloride.

This prospective observational study will evaluate the efficacy and safety of bevacizumab in combination with capecitabine and oxaliplatin as first-line treatment in participants with colorectal cancer. Data will be collected from each participant until disease progression occurs (for up to 30 months).