Active clinical trials for "Neoplasms"

This research trial studies is deoxyribonucleic acid (DNA) in blood samples from patients with neuroblastoma. Studying samples of blood from patients with cancer in the laboratory may help doctors learn more about changes that occur in DNA and identify biomarkers related to cancer. It may also help doctors predict how patients will respond to treatment.

This research study is looking at bone marrow and blood samples in patients with untreated acute myeloid leukemia or acute lymphoblastic leukemia enrolled on clinical trial CALGB-9621, CALGB-9720, CALGB 19808, and CALGB 10201. Studying samples of bone marrow and blood from patients with cancer in the laboratory may help doctors learn more about changes that occur in DNA and identify biomarkers related to cancer. It may also help doctors predict how patients will respond to treatment.

The purpose of the study is to provide expanded access (compassionate use) of 3,4 diaminopyridine to patients with Lambert-Eaton myasthenic syndrome (LEMS).

This study is being done to see how biomarkers (abnormalities in molecules of cells ) present in their Barrett's esophagus agree with results from surveillance biopsies; and to compare three different brush devices used to collect cells to see which of these 3 brush devices obtains a higher number of cells.

To identify the occurrence of serotonin toxicity in Parkinson's Disease (PD) patients receiving antidepressant therapy and rasagiline, compared to those receiving rasagiline without antidepressant medications and compared to PD patients receiving antidepressants, but not rasagiline.

The purpose of this study is to investigate if operation and permanent stoma can be omitted in patients with cancer in the lower part of the rectum.

Von Hippel Lindau disease (VHLD) is an inherited syndrome characterized by vascular malformations, kidney cancer, adrenal gland and pancreas tumors. The VHL protein is not functional in the different disease associated lesions which results in production of high amounts of vascular endothelial growth factor (VEGF). Currently there are no clinical, radiographic or molecular markers that can predict the natural history of a given lesion. With 89Zr-bevacizumab positron emission tomography (PET) scanning, VEGF can be visualized and quantified. The investigators hypothesize that 89Zr-bevacizumab PET imaging is a useful tool to predict the behaviour of disease associated lesions in patients with VHLD. Adult patients with VHLD who have had routine magnetic resonance imaging (MRI) scans of central nervous system (CNS) and abdomen will undergo a 89Zr-bevacizumab PET scan. MRI will be repeated within 12 months.

Total mesorectal excision (TME) is a rather new operation technique in the treatment of rectal cancer. It is known to reduce the rate of local recurrences. However, the influence on long-term survival is unclear.

This is a retrospective analysis and description of the preferred diagnostic and treatment methods employed on GIST on the Region of Coquimbo from 2003 to 2008.

Patients with squamous cell cancer of neck nodes but unknown primary will have a PET-CT scan prior to biopsies. The utility of PET-CT will be determined in this subset of patients.