Active clinical trials for "Neoplasms"

Study Design: Patients are eligible if (1) enrolled to TCOG 3207(2) received surgery or biopsy for pancreatic cancer; (3) willing to sign informed consent. The pancreatic tumor, tissue specimen and blood sample before or after treatment will be collected from department of pathology, surgery or diagnostic medicine.

Colorectal cancers account for 783,000 new cases and cause 437,000 deaths per year across the world. Diagnosis in the early stages improves survival rates. Up to now, these cancers are mostly diagnosed only at later stages of the disease's course through histoimmune staining and molecular biology processes on the tissues biopsied from the gastrointestinal system under invasive diagnostic procedures of colonoscopy. Oral fluid presents a large protein complexity and has been recently used as a diagnostic biofluid for oral, as well as systematic diseases. Using oral fluid as a bio-marker for the colorectal cancer can be advantageous as it contains gastrointestinal fluids, in addition to bacteria and bacteria lysate, which can also serve as a bio-markers' source for colorectal cancers. Proteomic technologies provide the tools needed to discover and identify disease-associated biomarkers. The aim of the present study is to identify salivary bio-markers in patients suffering from colorectal cancers.

This study will examine the perspectives of patients' undergoing surgery for lung or esophageal cancer. It will examine both pre-op and post-op patient perspectives and opinions regarding pain and surgical complications. This study will also assess a general health related quality of life pre-op and post-op. Additionally, it will examine the importance of receiving care close to home and their support system. Hypotheses: The data will allow investigators to better understand the willingness of patients to participate in prospective, randomized studies comparing minimally invasive and open thoracic surgery. Patients will not be willing to undergo randomization to an open versus minimally invasive surgical procedure. The pain associated with Minimally Invasive Surgery (MIS) will be perceived and documented as lesser than open surgery. Patients may be willing to accept a higher risk of complications or more post-operative pain if they were given the option to be cared for closer to their home.

to determine the values of imaging and genetic biomarkers for prediction of tumor aggressiveness and prognosis in patient with early stage lung adenocarcinoma to Identify unique copy number alteration in patient with early stage lung adenocarcinoma to evaluate the long-term change of ground-glass nodule combined with lung adenocarcinoma to suggest a guideline for planning an appropriate follow-up examination and management

Collect the real clinical background of advanced colorectal cancer c of China.

Natural Killer cells (NK) are pivotal cells of innate immunity, that sense defective expression of HLA class I molecules and are complementary to specific cytotoxic T lymphocytes. A defect in NK cell cytotoxicity has been described in some hematopoietic malignancies such as acute myeloid leukemia, multiple myeloma, myelodysplastic syndroms. This defect is at least partially linked to a decreased or absent expression of some activating NK cell molecules, more particularly the so-called Natural Cytotoxicity Receptors (NCRs) NKp30, NKp44 and NKp46. Some old publications have demonstrated defective NK cytotoxicity in myeloproliferative syndroms (chronic myeloid leukemia, primary thrombocytosis, polycythemia vera). The investigators more particularly focused their attention on polycythemia vera (Vaquez's disease), a myeloproliferative disease characterized by the recently describet mutation V617F of the JAK2 tyrosine kinase. The investigators will precise the mechanisms leading to this cytotoxicity defect, the investigators also will evaluate the implication of V617F mutation on NK physiology, and will study the interactions between NK cells and hematopoietic progenitors.

This study investigates whether the amount of circulating plasma DNA can be used as a response marker for anti-cancer treatment in treating gross tumors.

Colorectal cancer (CRC) is the second common cause of death in the Western world, and is very increasing in Japan. Fecal occult blood test (FOBT) is used routinely for CRC screening, which has been shown to reduce the incidence, morbidity, and mortality of CRC. However, there is a need to develop a novel method to improve sensitivity. The investigators reported that Fecal COX-2 assay, one of fecal RNA test, is potentially useful for colorectal cancer screening (Gastroenterology 127; 422-427, 2004). So the investigators planed to compare fecal RNA test with FOBT for detecting colorectal cancer and adenoma.

This study tests the feasibility and reproducibility of patient-specific motion models. These will be used for quantification of safe margin reduction. Patient-specific motion models will be built by post-processing 4D MRI data with non-rigid registration. By comparing these models between visits, model reproducibility will be assessed, and the methodology refined.

The purpose of this study is to create a tissue bank of gynecologic cancers and normal tissue for the study of cancer in order to better understand the changes occurring on a molecular level (DNA, RNA, protein) that lead to the development of cancer.