View clinical trials related to Rectal Neoplasms.
Filter by:This phase I trial studies the side effects and best dose of fluorouracil when given together with radiation therapy followed by combination chemotherapy before and after surgery in treating patients with rectal cancer that has spread from where it started to nearby tissue or lymph nodes. Radiation therapy uses high energy x-rays to kill tumor cells and shrink tumors. Drugs used in chemotherapy, such as fluorouracil, leucovorin calcium, and oxaliplatin, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Giving more than one drug (combination chemotherapy) before surgery may make the tumor smaller and reduce the amount of normal tissue that needs to be removed. Giving additional combination chemotherapy after surgery may kill any remaining tumor cells. Giving radiation therapy and fluorouracil followed by combination chemotherapy before and after surgery may be a better treatment for rectal cancer.
Clinical experience show limited effect of the drug Loperamide used to decrease output in stoma patients. Therefore the investigators see the need for a randomized blinded clinical trial to determine the effect of Loperamide opposite Placebo. Loperamide will be evaluated in relation to the following parameters - Change in ileostomy output in g/day in relation to oral intake - Quantification of the change in intestinal transit time using a radiopaque marker - The patient´s own assessment on which period they received Loperamide or Placebo
To investigates the feasibility, practicability, safety and subjective as well as functional outcome of transanal minimal invasive surgery toal mesentery excision for rectal cancer.
During the past three years, a revolutionized radical surgical approach for rectal cancer ("down to up TME " approach or "transanal TME (TaTME)"approach, which is opposite to the conventional approach) has emerged and it is a concept that combines natural orifice transluminal endoscopic surgery(NOTES) and total mesorectal excision(TME) with curative intent. The feasibility, safety and reproducibility of it were first demonstrated in swine survival experiments and subsequently in human cadaver series, and then it was successfully applied to human patients in few centers around the world, most of which were performed with assistance of laparoscopy, namely hybrid transanal TME. In addition, pure-NOTES without conventional laparoscopic assistance (no scar) has also been demonstrated, though the cases were more limited. In the initial stage, our group has successfully performed this no-scar transanal TME in a series of human cadavers with satisfactory outcome. Hence the investigators conduct this study, looking to see if this pure transanal NOTES investigational procedure is a safe and effective approach to radically remove rectal cancer of the mid and lower rectum and meanwhile, if it can reduce pain, gain faster recovery and better function and life quality when gaining the best cosmetic effect.
This phase II trial studies how long it takes colorectal cancer resistant to standard treatment to grow while receiving treatment with ziv-aflibercept, and how well adding fluorouracil and leucovorin calcium to ziv-aflibercept works in treating patients with stage IV colorectal cancer after they progress on ziv-aflibercept alone. Ziv-aflibercept may stop the growth of colorectal cancer by blocking the formation of tumor blood vessels. Fluorouracil and leucovorin calcium are drugs used in chemotherapy. Fluorouracil works to stop the growth of tumors cells by preventing the cells from growing and dividing. Leucovorin calcium helps fluorouracil work better. Adding fluorouracil and leucovorin calcium to ziv-aflibercept may be an effective treatment for patients who progress on ziv-aflibercept alone.
The investigators will be using the combination of FDG-PET and multiparametric MRI in pre- and post-adjuvant chemoradiation therapy in order to attempt to predict pathologic response on surgical resection.
The purpose of this study is to investigate if PET/CT and MRI scans performed early in treatment and six weeks after treatment can predict the response of rectal cancer following chemotherapy and radiotherapy. This will help doctors to better tailor treatments for rectal cancer in the future.
This pilot phase I trial studies the side effects and best dose of CPI-613 when given together with fluorouracil in treating patients with colorectal cancer that has spread to other parts of the body and cannot be removed by surgery. CPI-613 may kill tumor cells by turning off their mitochondria. Mitochondria are used by tumor cells to produce energy and are the building blocks needed to make more tumor cells. By shutting off these mitochondria, CPI-613 deprives the tumor cells of energy and other supplies that they need to survive and grow in the body. Drugs used in chemotherapy, such as fluorouracil, work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Giving CPI-613 with fluorouracil may kill more tumor cells.
The standard treatment for stage 2/3 rectal cancer is neoadjuvant 5-Fu based chemoradiation. However, preoperative radiation cause kinds of adverse events, some were irreversible. And the survival benefit was not obvious. Whether chemotherapy alone is effective enough in treating rectal cancer is not yet known. Here, the investigators chose all the three active cytotoxic agents (5-FU, Oxaliplatin, Irinotecan) as the neoadjuvant treatment regimen (FOLFOXIRI). The purpose of the study is to evaluate the efficacy of FOLFOXIRI as neoadjuvant regimen in treating patients with locally advanced rectal cancer.
Fluoropyrimidine chemotherapy agents , such as 5-fluorouracil and capecitabine, are occasionally associated with cardiac toxicity. Clinical fluoropyrimidine cardiotoxicity is infrequent, but subclinical toxicity may be much more common. Cardiac toxicity may be less frequent with S-1 as compared with 5-fluorouracil and capecitabine, but head-to-head comparisons are lacking. The purpose of the study is to compare 2 measures of subclinical coronary artery microvascular dysfunction, the coronary flow reserve and the coronary flow response to a cold pressor test, in a patient population who are being treated for adenocarcinoma of the gastrointestinal tract with one of 2 oxaliplatin-containing regimens, either with oxaliplatin plus S-1 or with oxaliplatin plus capecitabine.