View clinical trials related to Neoplasms.
Filter by:Gastroenterologists often follow up second look endoscopy after endoscopic submucosal dissection(ESD) of gastric neoplasms because they want to prevent bleeding of procedure sites. But Goto suggested in his retrospective analysis that a second-look endoscopy after endoscopic submucosal dissection for gastric epithelial neoplasm may be unnecessary. So, the investigators try to identify the hypothesis prospectively in this study.
In this study, the investigators assessed whether intraoperative Intraportal infusion of 5-FU and oxaliplatin is able to prevent liver metastasis in patients receiving curative colorectal cancer resection.
Rare tumors are understudied, yet have the potential to shed light on vast areas of cancer research. Ovarian sex cord-stromal tumors, rare tumors of childhood and young adulthood, have recently been found to be associated with a lung cancer of early childhood called pleuropulmonary blastoma (PPB). The cause of these ovarian tumors is unknown. DICER1 mutations are seen in the majority of children with PPB. Research shows DICER1 mutations are also seen in some patients with ovarian tumors. Like PPB, ovarian stromal tumors are highly curable when found in early stage; however, later forms of the disease are aggressive and often fatal. The International Ovarian Stromal Tumor Registry collects clinical and biologic data to understand why these tumors occur and how to treat them. Current work involves the study of the role of DICER1 and miRNA expression in ovarian stromal tumors. Understanding the clinical history, predisposing factors and DICER1 and miRNA expression in these ovarian tumors of childhood will lead to targeted screening and risk stratification for evidence-based treatment and biologically rational therapies. These efforts will improve the lives of children by increasing survival and reducing late effects. The specific goals of the International Ovarian and Testicular Stromal Tumor Registry are: 1. to understand risk factors by studying age, pathologic subtype, histopathologic features, tumor invasiveness, degree of differentiation, presence of metastasis 2. to collect information on personal and family history in order to refine the clinical characteristics of patients and families with and without germline DICER1 mutations and other genetic predisposing factors 3. to determine whether there is a pattern of gene expression or DNA alterations that correlate with predisposition to ovarian tumors, biologic behavior and clinical outcome 4. to determine optimal screening regimens 5. to use clinical data obtained through the Registry to refine treatment algorithms 6. to establish a collection of annotated biology specimens (tumor tissue and germline DNA) for future research
In vitro studies have demonstrated that sodium selenite in sufficient concentration and during sufficient time have a high tumoricidal capacity. This is found in many human cell types as leukemia cells, mesothelioma and non-small cell lung cancer cells. A minority of cell lines seem to be resistant. The question from a clinical point of view is: Is it possible with respect to toxicity to administer sodium selenite to patients in sufficient dose and during sufficient time to get responses in patients with cancer? We have performed first part of phase-1 study and found MTD of 10.2 mg/m2 if given as 10 daily infusions during 12 days. We have recorded limited anti-tumor effect in this treatment regimen. However, in vitro data suggest that low concentration of continuous exposure for 51 h is much more effective. Now we are planning to continue the phase-I trial with modified protocol. More specific: 1. Phase I: Find maximal tolerable dose with continuous infusion 2. Phase II: Use MTD and study responses, if any
Background: - Malignant mesothelioma is a malignancy arising from the mesothelial cells of the pleura, peritoneum, pericardium, or tunica vaginalis. - Mesothelioma accounts for 0.10% of deaths annually in the United States. Malignant pleural mesothelioma is the most common of these, comprising of 80% of the cases with an annual incidence of about 2,500 in the United States. - The median survival from diagnosis of pleural mesothelioma is approximately 12 months. The majority of patients present with stage III or IV disease with 85-90% of patients considered unresectable at diagnosis. - Peritoneal mesothelioma has a better prognosis than pleural mesothelioma; nevertheless, patients undergoing therapy for peritoneal mesothelioma have few well-studied treatment options due in large part to the rarity of the disease. Objectives: -To allow sample acquisition for use in the study of mesothelioma. Eligibility: - All patients age greater than or equal to 2 years with malignant mesothelioma - Must be able and willing to provide informed consent if 18 or over; parent or guardian must be able and willing to provide consent for patients under the age of 18 Design: - Up to 1000 subjects will be enrolled. - Patients will be followed to determine the course of disease and to record any treatment received for mesothelioma. - Patients will undergo sampling of blood, urine, tumor and abnormal body fluids for tissue banking. - Studies which may be performed on banked material include genetic and genomic studies, establishment of cell cultures and immunologic studies.
Communication about end-of-life issues is often suboptimal. A way to improve the quality of end-of-life care is Advance Care Planning (ACP). ACP is a discussion between an incurable ill patient and the health professionals about preferences for end-of-life care. In Denmark, there is no tradition of systematic communication with patients about end-of-life care. The aim is to investigate how ACP can be beneficial among incurable ill patients treated in an outpatient context and if the concept is feasible in a Danish context. The study is designed as a prospective randomised controlled trial. Patients from relevant departments will be included and randomised in two groups: one receiving usual care and the other receiving usual care and ACP. Data will be collected from Electronic Patient Files and from questionnaires. If ACP is effective, it will improve the quality of end-of-life care for patients and their families and reduce the psychological distress in the bereaved relatives.
This study is aimed to analyze the outcomes after conventional endoscopic submucosal dissection (ESD) and optimized ESD with snaring (oESD-S) for colorectal neoplasm that is more than 20 mm in diameter of laterllay spreading tumor or flat elevated lesion without stalk. Optimized ESD with snaring means submucosal dissection followed by snaring when narrowed circumference of the remained submucosal tissue beneath the lesion is less than 5 mm in diameter with snaring, then resected by using an electric current. The investigators expect optimized ESD with snaring can provide more time-saving procedure with comparable en-bloc resection rate and perforation rate, when compared with the conventional ESD method.
It is a phase III trial to explore the efficacy and safety of metronomic chemotherapy with Capecitabine versus intermittent Capecitabine as maintenance therapy following first-line Capecitabine plus Docetaxel chemotherapy in treatment of HER2-negative metastatic breast cancer(mBC).
Background: - Recent advances in cancer research have led to new therapies to treat the disease. It is important to continue these advances and discover new ones. To do that, researchers need tissue samples from solid tumors. This study will collect such samples from people already scheduled to have a procedure at the National Institutes of Health Clinical Center (NIHCC). Objectives: - To collect tissue samples for use in studying new ways to treat tumors. Eligibility: - Adults 18 years and older, with a precancerous or cancerous solid tumor who are scheduled to have surgery or a biopsy at the NIHCC. - Children under the age of 18 but who are older than 2 years of age are eligible to be enrolled on the research sample collection portion of this study if they will have a biopsy or surgery as part of their medical care. Design: - Before their procedure, participants will have a small blood sample taken. - Some participants will undergo leukapheresis. In this procedure, blood is removed through a tube in one arm and circulated through a machine that removes white blood cells. The blood, minus the white blood cells, is returned through a tube in the other arm. The procedure takes 3-4 hours. - For all participants, during the surgery or biopsy, pieces of the tumor and pieces of normal tissue near it will be removed for this study. The rest of the tumor or precancerous growth will be sent to a lab for analysis. - Participants will return to the clinic about 6 weeks after the operation for a routine checkup. Some may have to return for additional follow-up.
The incidence of cancer of the esophagogastric junction has rapidly risen in recent three decades, and surgery still remains the optimum therapy. For Siewert's type II and III cancer, esophagojejunostomy after total gastrectomy and Roux-en-Y gastrojejunostomy after subtotal gastrectomy are regarded as the two main surgical approaches. Esophagojejunostomy after total gastrectomy brings high survival rate and low local recurrence rate which may also induces pulmonary infection or regurgitation. Roux-en-Y gastrojejunostomy after subtotal gastrectomy needs reconstruction of the gastric tube and the width of reconstruction tube was a key factor to predicate prognosis. However, no evidence supplies a comprehensive standard on the width of reconstruction tube which often ranges from 3 cm to 6 cm. Both narrow and wide reconstruction tubes have their own advantages and disadvantages. So the prospective trail recruits patients into three groups: total gastrostomy group (TG group), wide gastric tube group (WG group) and narrow gastric tube group (NG group). And the investigators compare the quality of life using integrated questionnaire of QLQ-STO22 and QLQ-C30 and related symptom relief as main endpoints.