Active clinical trials for "Neoplasms"

The aim of this study is to 1-evaluate subjectively by questionnaires and objectively by ambulatory actigraphy the quality of sleep in patients with newly diagnosed lung cancer; 2- to correlate sleep quality index with quality of life, daytime alertness, Performans status and lung cancer staging at diagnosis.

The purpose of this study is to establish the HNPCC related information in Taiwan, and to characterize relevant susceptibility genes related to colorectal cancer to provide better disease control for the high-risk people. To accomplish this objective, we will collect detailed information of the HNPCC patients and their families from the collaborative hospitals and relate the information to the risk of CRC in order to provide sound disease control system in Taiwan.

To establish a pathology reference laboratory for the consultation on the diagnosis of infectious diseases and lymphoma. To study the specific pathogens on 100 cases of unexplained death due to infectious diseases in the files of Taiwan CDC and the Forensic Institutes of Department of Law and Justice. To study the distribution of children lymphoid lesions in Vietnam and Taiwan and their virus association. To establish a tissue bank for infectious diseases and lymphoma.

TPMT is a key enzyme in the metabolism of thiopurines. TPMT polymorphisms have been described and are associated with a decrease activity of such enzyme. Therefore, a higher risk of developing toxicity is present in patients requiring these drugs, which are indicated in acute lymphoblastic leukemia, as well as, immunosuppressors after organ transplantation. The frequency of heterozygotes polymorphisms ranges from 3 till 12 %, in different populations. Homozygous patients have a lower frequency, estimated 1 in 300 individuals. The frequency of such polymorphisms in mestizos mexican population has not been analyzed, and we considered important to determine this frequency in healthy and patients requiring thiopurines, particularly acute lymphoblastic leukemia.

To diagnose hepatocellular carcinoma (HCC) and to determine the extent of the disease, a triphasic CT scan or a magnetic resonance imaging are required. The characterization of hepatic nodules is more difficult when the HCC lesions have a diameter of less than 2 cm. Since accuracy in the assessment of the number and the size of HCC nodules, as well as of the invasion of blood vessels is crucial to determine outcome after liver transplantation due to tumour recurrence, there is a need for techniques with a higher definition potential. As a consequence, to improve outcome and to optimize organ allocation, patients on the liver transplantation waiting list might benefit from intravascular ultrasound as an additional examination to complete the pre-transplant tumour staging process.

Correct identification of Lynch syndrome at the time of colorectal cancer presentation is important. We aim to find best ways to screen patients with colorectal cancer in Korea.

Retrospective review of clinical outcome of pediatric Dermatofibrosarcoma Protuberans (PDFSP) after active invitation

In malignant or neoplastic disease, angiogenesis is defined as the generation of new capillaries from preexisting blood vessels, e.g. by sprouting or by intusseption. Through the pioneering work of Folkman, it was recognized that angiogenesis plays an important role in tumor development, progression, and metastasis. It is also conceivable that there are forms or developmental stages of leukemia, multiple myeloma, or lymphomas that will progress independently of angiogenesis. Synthesis of angiogenesis activators, such as vascular endothelial growth factor (VEGF) and other angiogenic factors, such as basic fibroblast growth factor (bFGF), has been demonstrated for leukemia cells, non-Hodgkin's lymphoma, and myeloma cells. Microvessel density is also significantly elevated over normal controls with progressive increases according to the stages of myelodysplastic syndrome. Increased microvessel density (MVD) in the bone marrow was found in patients with multiple myeloma in comparison to normal controls and increased MVD is an adverse prognostic marker in multiple myeloma. However, the functional status of the blood vessel (e.g. permeability) cannot be determined by the above mentioned methods.

To evaluate the correlation between SERPIN D1 expression in clinical specimen (including surgical specimen and blood sample) and lung cancer metastasis.

The goal of this research study is to identify biologic and lifestyle factors that may increase a person's risk of developing a recurrence (return) of colon cancer.