View clinical trials related to Colorectal Cancer.
Filter by:A comparison of prophylactic treatment with reactive treatment for skin toxicity observed in patients with metastatic colorectal cancer (mCRC) who are receiving second-line irinotecan-based chemotherapy concomitantly with panitumumab.
RATIONALE: Chemoprevention is the use of certain drugs to keep cancer from forming, growing, or coming back. The use of nitric oxide-releasing acetylsalicyclic acid may prevent colorectal cancer. PURPOSE: This randomized phase I trial is studying the side effects and best dose of nitric oxide-releasing acetylsalicyclic acid in preventing colorectal cancer in patients at high risk of colorectal cancer.
Primary Objective: This trial is elaborating a model for rapidly predicting (day 21) the response to monoclonal antibodies anti-EGFR and anti-VEGF (cetuximab and bevacizumab) based on biological markers and/or functional imaging. The response to treatment is evaluated by the conventional method after 2 months (Response Evaluation Criteria in Solid Tumors [RECIST] criteria). Secondary Objectives: 1. This trial is also analyzing the correlation between the magnitude of response to treatment at 2 months (stabilization or objective response, RECIST criteria) and that of response observed after 6 months of treatment. 2. The organisational objective is to develop a tumour bank of metastatic colorectal cancer. Population: The population includes 252 male and female patients with metastatic colorectal cancer justifying the use of cetuximab or bevacizumab, with no heart disease. Techniques: Computed tomography (CT scan), functional imaging (ultrasound with SonoVue); molecular imaging (positron emission tomography [PET] with fluorodeoxyglucose F18 [18-FDG]); and biology and pathology on microbiopsy of liver metastasis are used. Outcome Criteria: The primary outcome is response to treatment with monoclonal antibodies according to RECIST criteria at two months. Studied Factors: Radiology: 1. CT scan: RECIST criteria (gold standard); 2. Ultrasound with SonoVue injection: 1 representative target (delay of contrast appearance, peak of rising, curve of increase and decrease of the signal, area under the curve, time of average transit). Nuclear Medicine: PET scan and 18-FDG (standard uptake values [SUV]) Molecular Characterization of Tumors: p53 status; microsatellite instability (MSI) status; expression of oncogenes; EGFR status; VEGF status; determination of FcgammaRIIIA polymorphisms Statistics: 1. Descriptive analyses; 2. Analysis of the appropriate threshold to measure: response to treatment by an ultrasound with SonoVue and by PET scan; correlation between response predicted by the ultrasound with SonoVue and the PET; conventional morphological CT at 2 months 3. Analysis of prognostic factors: 1. Evaluation of the role of each prognostic factor (pathology and imaging) on response to treatment; 2. Multivariate analysis of prognostic factors; 3. Analysis of the prognostic power of early response at 2 months on the response observed after 6 months of treatment.
Colorectal cancer (CRC) is one of the common malignancies worldwide, accounting for a significant percentage of cancer mortality. Concurrent chemoradiation (CCRT) is now a standard treatment for unresectable malignancies of anorectum. To improve quality of life, CCRT is also commonly applied in treatment of lower rectal and anal canal cancer to preserve anal sphincter function. The most commonly used chemotherapeutic drugs combined with radiation as radiosensitizers is 5-fluorouracil (5-FU). Circulating endothelial progenitor cells (EPC), which contribute to the tumor vessel formation, reflect the response to chemotherapy both in animal model and clinical trial. Thus, circulating EPC can be used as a marker for optimizing and monitoring the anti-angiogenesis therapy including angiogenesis inhibitors and chemotherapy. Whether circulating EPC can be served as a marker of CCRT efficacy or not remains undetermined. Since CCRT is now a standard treatment of locally advanced and high-risk CRC, the development of a surrogate marker for monitoring CCRT response and optimize treatment intensity is very important. In this grant we intent to monitor the levels of circulating EPC in locally advanced and high-risk CRC patients before, during and after CCRT. To further characterize the changes in function and biology of EPC caused by CCRT, a syngeneic animal model will be also used to evaluate the clonogenecity and specific gene expression of EPC in tumor-bearing mice receiving CCRT.
The immediate objective of this proposal is to assess the effectiveness of a multi-faceted intervention to improve patient-provider communication about colorectal cancer screening in improving patient adherence with colorectal cancer screening recommendations. This intervention consists of: (1) guiding the communication process through patient activation to initiate a colorectal cancer screening discussion; (2) optimizing communication content through the use of a prompt sheet; and (3) cueing the provider to assess patient perception of the communication. The long-term objective of our research program is to maximize colorectal cancer screening rates throughout the VA through widespread adoption of clinically feasible approaches to enhance patient-provider communication.
This study is for people with colorectal cancer, who have tumors that cannot be completely removed by surgery. Blood clots are a problem in patients with cancer. Blood clots are also a problem in patients receiving cancer drugs. Studies have shown that up to 17% of patients receiving cancer drugs experienced blood-clotting problems. One purpose of this study is to find if the drug combination of irinotecan, 5-fluorouracil (5-FU), bevacizumab and leucovorin (LV) affect blood-clotting factors. A second purpose of this study is to find out what effects the drug dalteparin has on clotting factors in the blood in patients receiving the drug combination of irinotecan, 5-FU, bevacizumab and LV. It is hoped that adding dalteparin to chemotherapy may benefit patients with colorectal cancer by preventing blood clots
RATIONALE: Drugs used in chemotherapy, such as fluorouracil, leucovorin, and oxaliplatin, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Monoclonal antibodies, such as bevacizumab, can block tumor growth in different ways. Some block the ability of tumor cells to grow and spread. Others find tumor cells and help kill them or carry tumor-killing substances to them. Bevacizumab may also stop the growth of colon cancer by blocking blood flow to the tumor. Giving combination chemotherapy together with bevacizumab may kill more tumor cells. PURPOSE: This phase II trial is studying how well giving combination chemotherapy together with bevacizumab works in treating patients with stage IV colon cancer that cannot be removed by surgery.
RATIONALE: Calcium gluconate and magnesium sulfate may prevent or lessen neurotoxicity caused by oxaliplatin. It is not yet known whether calcium gluconate and magnesium sulfate are more effective than a placebo in preventing neurotoxicity caused by oxaliplatin in patients receiving combination chemotherapy. PURPOSE: This randomized phase III trial is studying calcium gluconate and magnesium sulfate to see how well they work compared to a placebo in preventing neurotoxicity caused by oxaliplatin in patients receiving combination chemotherapy for stage II, stage III, or stage IV colorectal cancer that has been completely removed by surgery.
This trial is designed to assess the tolerability and efficacy of simvastatin plus FOLFIRI (irinotecan, 5-FU, leucovorin) in metastatic colorectal cancer patients.
RATIONALE: Drugs used in chemotherapy, such as liposomal SN-38, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. PURPOSE: This phase II trial is studying how well liposomal SN-38 works in treating patients with metastatic colorectal cancer.