Active clinical trials for "Colonic Neoplasms"

The purpose of this observational study is to evaluate the safety and performance of the Single Use Endoscopic Linear Cutter Stapler and Reloads from Frankenman used in (hemi)colectomy to remove tumors and create anastomoses in patients with cancer in the ascending colon. The goal of the study will be achieved by assessing the device performance and reporting of peri- and postoperative complications in a prospectively maintained database.

RATIONALE: Studying samples of tumor tissue from patients with cancer in the laboratory may help doctors identify and learn more about biomarkers related to cancer. PURPOSE: This research study is looking at biomarkers in tissue samples from patients with metastatic colon cancer.

Colorectal cancer is a frequent type of cancer accounting for 600,000 deaths annually. Surgical resection remains the best treatment for long-term survival. However, studies suggest that events in the perioperative period can induce metastasis formation and tumor growth. Tumor cells are released into the blood stream during surgery and the surgical stress may create a favorable environment for dissemination of tumor cells into distant tissue. This is done by a cascade of pro-cancerous catecholamines, prostaglandins and cytokines combined with an impaired anti-cancerous cell mediated immune response. Until recently, focus on the anesthetic management of cancer patients has been limited. Relatively small alterations in the perioperative anesthetic management may play a tremendous role in tumor progression. Optimizing anesthesia to reduce the surgical stress response could improve recurrence rates and long-term outcomes for cancer patients by inhibiting perioperative metastasis formation. Regional anesthesia and amide local anesthetics are suspected to calm the immunologic storm of prostaglandins, catecholamines and cytokines when used in the perioperative phase. Furthermore, volatile inhalational anesthesia is thought to modulate the immune system in a pro-cancerous way, while propofol may have opposite effects. Many of these recent studies are statistically underpowered and susceptible to bias, and experts in cancer treatment and anesthesia have emphasized the need for further research within this specific field. In this study the investigators aim to characterize differences in the immunologic response to surgery between inhalational, total intravenous and epidural anesthesia. This will be done by analyzing blood samples obtained in the perioperative period in patients undergoing different modes of anesthesia. The Investigators will furthermore describe the quality of recovery for patients anesthetized with the different methods

The primary aim of this study is to collect clinical data on the performance of MonoPlus® suture applied in routine clinical practice. Diverse parameters are to be used to assess the safety and efficacy of MonoPlus® suture for gastrointestinal anastomosis construction. This study has been designed to implement an action within the framework of a proactive Post Market Clinical Follow up (PMCF) activity.

RATIONALE: Gathering health information from older patients undergoing chemotherapy may help doctors plan better treatment and improve the quality of life for these patients. PURPOSE: This randomized clinical trial is studying how well an outpatient health care program works for older patients receiving chemotherapy for newly diagnosed breast cancer or colon cancer.

The primary objective of this study is to retrospectively compare the perioperative and short-term (discharge through 30 days) outcomes of intracorporeal and extracorporeal anastomosis in minimally invasive right colectomies for benign and malignant disease. The secondary objective of this study is to retrospectively compare the rates of incisional hernia (up to 6 month post procedure) between intracorporeal and extracorporeal arms.

When the DNA inside of human cells undergoes certain alterations (mutations), the cells may develop into a cancer. The cancer cells may shed this DNA into the blood stream. This circulating tumor DNA (ctDNA) can be detected by very sensitive, specialized laboratory tests. Measurement of ctDNA has been shown to be useful for following patients with known cancer. It has also been found in the circulation of some patients with early stage cancer. The purpose of this study is to examine blood specimens for the presence of ctDNA in individuals without known cancer who are scheduled to undergo a screening or diagnostic colonoscopy in order to see if the ctDNA test can detect a cancer or precancerous condition at a very early stage before the patient becomes symptomatic. The results of this study should help define the role of ctDNA in the detection of early stage colon cancer and to define how sensitive it is (i.e. how well it picks up cancer when it is present) and how specific it is (i.e. how often is ctDNA found in patients with benign diseases or no abnormalities).

The purpose of the study is to investigate phospholipid ligands and their receptors in inflammatory bowel diseases and colon cancer. Several new species of lipids have been recently discovered which are able to transmit information to cancer cells in the large intestine. The lipids and their responsive receptors build an axis that is thought to influence the development of inflammation and cancer.

The aim of this study was to determine the kinetics of perioperative circulating DNA in three types of cancer. This first step will enable further studies comparing the potential impact of certain techniques or anesthetic products on cancer surgery.

The investigators are creating a data and specimen repository to study causes , early detection, prevention and treatment of colon and rectal cancer. The investigators are collecting data and specimens (blood, stool, urine and tissue) from people who have colon or rectal cancer, or who are risk for developing colorectal cancer or had normal colonoscopies. Data and samples are held in the repository until there are enough to be used for a large study or until there are new techniques that can be used to test them. The GI SPORE Program at the University of Michigan maintains a repository of specimens for colorectal diseases that the investigators hope will help fuel new research. The investigators hope that this work may lead to new treatments or earlier detection of colorectal cancer or improved diagnosis and treatment of other colon and rectal diseases.