View clinical trials related to Colon Cancer.
Filter by:Colorectal cancer is a major health problem in Western society contributing to a high mortality rate. Treatment options for the majority of patients with metastases are limited to cytotoxic chemotherapies. The first line chemotherapy containing with oxaliplatin is recommend by guideline. The use of antiangiogenic agents, either alone or in combination with other therapies may provide an alternative treatment modality in the management of these patients. Metronomic chemotherapy refers to the close, regular administration of a chemotherapeutic drug, over prolonged periods. The advantages of metronomic chemotherapy include reducing acute toxicities and sometimes surprisingly good activity against drug resistant tumors via antiangiogenic effect. Thalidomide is an agent, which has shown potential in the treatment of hematological and solid tissue malignancies such as multiple myeloma via antiangiogenic mechanism. Tegafur/uracil (UFUR) is one of the effective chemotherapeutics reported to be an effective antiangiogenic agent in an animal model of metastatic colorectal cancers (CRCs). In the present study, the investigators will try to use low dose metronomic schedule of thalidomide with tegafur/uracil regimen to see the anti tumor efficacy in recurrent and metastasis colorectal cancer patients after oxaliplatin-contained chemotherapy. The primary endpoints are overall response rate and clinical benefit and the secondary endpoint were to determine the progression free survival, and duration of objective response, the overall survival (OS) and to assess the safety profile. This is a prospective phase II study. After having checked all eligibility criteria, patients will be treated with Tegafur/Uracil (TU) regimen. About 34 patients will be enrolled.
The technique of sentinel lymph node mapping in patients with colon cancer varies among reports, and the optimal method remain to be established. The purpose of this study was to determine the optimal injection technique for sentinel lymph node mapping for colon cancer.
The purpose of this study is to better understand the genetic causes of Hodgkin's disease (a kind of lymphoma) and non-Hodgkin's lymphoma, as well as multiple myeloma, leukemia, and related diseases. The doctors have identified the patient because 1) they have had a lymphoproliferative disorder such as lymphoma, leukemia, or multiple myeloma, and have a family member with one of these disorders or 2) they are a member of a family with a lymphoproliferative disorder, including Hodgkin's disease and/or, non-Hodgkin's lymphoma or a second cancer after Hodgkin's disease.
This study aims to provide long-term follow-up care of patients previously enrolled in a vaccine study that involved poxviral vectors. Vectors are sequences of genetic material that can be used to introduce specific genes into genetic makeup. The study does not involve the use of any drug or biologic agent. Participants will undergo an annual health history. Because certain viruses enter into cells and create proteins from the viral genes, the type of vaccine treatment used is referred to gene therapy. The genes expressed by poxviral vectors do not become part of the genetic material left behind. Because gene therapy is a somewhat new technology, a prolonged monitoring of patients' health status is necessary, according to new specific reporting requirements for harmful events in patients who undergo such gene therapy studies. The risk of any long-term negative effects from the gene therapy that patients had received is quite small. Still, it is important that there be updates at least annually. This annual monitoring of health status will extend for 15 years, according to guidelines from the Food and Drug Administration, or for as long as patients are willing to participate. Patients who received poxviral vectors (vaccinia or fowlpox, or both) at the National Cancer Institute, through a trial affiliated with the Laboratory of Tumor Immunology and Biology, may be eligible for this study. Participants will be involved in the following forms of data collection: - Annual medical history and physical examinations for the first 5 years following the last vaccine. - Annual telephone contact during the last 10 years. - Health status check, including primary cancer status, secondary malignancies, neurologic disorders, autoimmune disorders, and hematologic disorders. - Blood tests for the presence of HIV antibodies. - Reporting of medical problems, including information on unexpected hospitalizations and medications. If a participant has died, the study will document the cause of death and autopsy information if available.
More than 20% of patients operated on for colon cancer without node metastasis will develop visceral metastases. The purpose of the study is to determine sentinel lymph nodes with two methods: blue injection and isotopic detection. Sentinel nodes will then be analyzed by immunohistochemy to detect micrometastases. No adjuvant therapy will be proposed to the patient if there are only node's micrometastases and survival will be analyzed in regard to the presence of these micrometastasis.
S-1 is a novel oral fluorouracil antitumor drug that consists of tegafur which is a prodrug of 5-fluorouracil (5-FU); 5-chloro-2,4-dihydropyridine (CDHP), which inhibits dihydropyrimidine dehydrogenase (DPD) activity; and potassium oxonate (Oxo), which reduces gastrointestinal toxicity. 5-FU is metabolized by CYP2A6 and DPD. In this study, the researchers investigate the influences of differences in activities of CYP2A6 and DPD on pharmacokinetics and pharmacodynamics of S-1 and clinical outcomes in digestive organ cancer patients treated with S-1.
The WE-CT is an innovative and easy practice imaging technique of colon tumors; it is based on the colon distension by a high volume of warm water and a multidetector CT acquisition after IV (intravenous) contrast, allowing image analysis including the wall thickness and enhancement, the pericolic adjacent spaces and the entire abdomen. The goal of the study is the evaluation of its performances for the diagnosis of colon tumors.
In this, here we want to present a new method for analysis variation in gene copy number for patients and carriers of SMA. This is a relative quantitation method and, therefore, relies on the inclusion of one or more internal control or reference sequences; quantitation of DNA is relative to this reference sequence of known copy number. A peak height from within a potentially duplicated or deleted target region is amplified simultaneously with a disomic reference region in a multiplex PCR system.
Computed tomography (CT) colonography has gained widespread multi-disciplinary interest as an evolving noninvasive colorectal screening examination, with the potential of improved patient compliance. The investigator's prior work demonstrated that the bowel preparation was the least tolerable aspect of colorectal evaluation when compared to the CT colonography and optical colonoscopy procedures. Stool tagging could provide a more gentle and efficient bowel preparation, with fewer false positives due to retained stool-mimicking polyps. The researchers hypothesize that image quality and patient preference will vary with stool tagging concentration and dosing schedule. The researchers propose to evaluate specific stool tagging protocols with the following aims: AIM 1: Perform a randomized trial of three specific stool tagging protocols using barium and iodine at CT colonography in a well-characterized cohort of patients undergoing colorectal evaluation. AIM 2: Analyze the CT colonography and optical colonoscopy data to assess differences across stool tagging protocols for the outcome measures of patient preference, image quality in the presence of tagging, and diagnostic reader performance. The researchers will use specific variations in stool tagging techniques to determine the best image quality of CT data (e.g., homogenous tagging of fluid and stool), and highest patient acceptability, as well as evaluate the adequacy of preparation for same-day colonoscopy. Diagnostic reader performance will focus on the accuracy for detecting all neoplastic lesions including colon cancers, adenomatous polyps, sessile adenomas and flat adenomas. Most importantly, these results will help inform the design of a larger trial of an optimized CT colonography technique in a community setting.
This study evaluates the safety, the immunological response and the clinical outcome of a vaccination with survivin peptides for patients with advanced melanoma, pancreatic, colon and cervical carcinoma.