View clinical trials related to Disease Progression.
Filter by:The purpose of this study is to investigate the utility of dopamine transporter imaging in monitoring and predicting the progression of Parkinson disease. This study will be performed in the PRECEPT cohort, an already existing cohort of 806 subjects recruited to participate in the study called, A Randomized, Double-Blind, Placebo-Controlled, Dose-Finding Study to Assess the Efficacy and Safety of CEP-1347 in Patients With Early Parkinson's Disease - (PRECEPT), sponsored by Cephalon and Lundbeck and coordinated by the Parkinson Study Group. The imaging data from this long-term PRECEPT follow-up study will allow us to evaluate the long-term progression of DAT loss in PD, the long-term follow-up of SWEDD subjects, the relationship between long-term clinical and imaging PD outcomes, and the relationship between long-term imaging outcomes and genetic and biochemical biomarkers of PD progression.
Participants will complete a self-selected intensity of exercising over a 6 month period, with detailed clinical assessments at commencement and completion to determine the rate of progression of parkinsonism and gait abnormalities
This study is a double-blind randomized clinical trial, conducted to examine the effects of multivitamins (including B, C, and E) on HIV disease progression among HIV-positive Tanzanian adult men and women taking highly active anti-retroviral therapy (HAART).
The purpose of the study is to identify genetic and biologic markers that may predict the loss of lung function due to idiopathic pulmonary fibrosis. The studies will compare genetic and biologic markers of samples to changes in symptoms. The ultimate goal is to predict if or when patients are likely to experience a rapid decline in lung function due to disease progression.
This study is a continuing follow-up of patients with systemic lupus erythematosus (SLE) and control subjects enrolled in the Carolina Lupus Study and the University of North Carolina (UNC) Lupus Nephritis Study. SLE is a severe, chronic, disabling autoimmune disease that significantly affects health and quality of life. The disease most often affects young to middle-aged adults, and therefore can also affect work and disability. There is currently little information on work-related disability related to SLE. The goals of the current study are to: - Determine health and work status of patients and controls in the Carolina Lupus Study and the UNC Lupus Nephritis Study; - Develop and test methods for obtaining disease data from university- and community-based physicians in the study area; - Examine the associations between sociodemographic, work-related factors, disease damage, and work disability among SLE patients and controls; and - Assess the role of demographic and socioeconomic factors, psychosocial attributes, and potentially modifiable behavior or environmental factors (e.g., smoking, occupational exposures, medication compliance) in disease damage measures, and in the increased severity of disease among African-American patients. Patients and control subjects enrolled in the Carolina Lupus Study and the University of North Carolina Lupus Nephritis Study are eligible for this protocol. Subjects will participate in a 30-minute telephone interview that includes questions related to their current health status, medical care utilization, work and disability issues, psychosocial attributes (e.g., helplessness, social support), and changes in environmental exposures since the previous follow-up interview in 2001. With the patients' permission, disease damaged will be assessed using a standardized form to be completed by the patients' physician or using information obtained from the patient's medical record.
The primary goal of the trial was to evaluate whether the optimal antiproteinuric doses of benazepril (an ACE inhibitor) or losartan (an ARB), as compared with their conventional doses, can safely improve the long-term renal outcome in nondiabetic patients with proteinuria and chronic renal insufficiency. The second aim was to compare the long-term renal protection between benazepril and losartan at similar clinical setting.
At this time, we do not know what causes a child to become more nearsighted (myopic). STAMP will help us better understand nearsightedness in children. Children will be randomly chosen to wear regular glasses (single vision lenses) or no-line bifocal glasses (progressive addition lenses) for the first year of the study. All children will wear regular glasses for the second year of the study. STAMP will compare how the eye changes shape in the two groups to help us understand why children become nearsighted. The two theories of myopia progression that are being evaluated are based on different factors. One theory is based on environmental factors such as extended near work while the other theory is based on genetically coded factors.
In children with chronic kidney disease, progression to end-stage renal failure is associated with high patient morbidity and poor quality of life. In adults, inhibition of the renin angiotensin system (RAS) slows down the rate of renal failure progression. This concept is as yet unproven in children, in whom chronic renal failure (CRF) is more commonly due to hypo/dysplastic malformations than to acquired glomerulopathies as typical for adult chronic kidney disease. The current project aims at assessing the genetic and molecular mechanisms and cardiovascular consequences of progressive CRF and to develop a strategy of pharmacological renoprotection in children.
The proposal is aimed at identifying genetic factors that determine the incidence and severity of, and the outcome from life−threatening infections (severe sepsis/septic shock) in patients admitted to High Dependency Units (HDUs) or Intensive Care Units (ICUs) with pneumonia which developed outside the hospital (community acquired pneumonia − CAP) or contamination of the abdominal cavity with faeces due to a leak in the bowel (faecal peritonitis). This will require the acquisition of a large, high quality resource of genetic material (DNA), plasma, urine, white blood cells and clinical information from well characterized groups of similar patients with, or at risk for, severe sepsis/septic shock. The principal objective is to perform studies which are sufficiently large to establish beyond doubt the influence of a series of selected "candidate" genes on the development, progress and outcome of sepsis.
This protocol is a study of HIV+ young people who were identified as having certain HIV-1 specific T-cell responses and genetic markers while previously enrolled in the 5-year longitudinal adolescent study, "REACH." Blood samples will be collected, a medical and medication history and physical examination will be performed every 6 months for a total of 2 years.