Active clinical trials for "Alzheimer Disease"

The protocol objectives are to enable prospective IRB review of research using human MRI scans and data collected under other branch protocols or extramural sources. By combining data from multiple sources the investigators will be able to conduct analyses that require large numbers of observations that exceed the numbers collected in any single study. They will also be able to stratify and subgroup the combined samples in different ways to permit analyses that would otherwise not be possible. The study population consists of normal individuals and clinical groups of all ages. Clinical groups will be added by amendment including patients suffering from schizophrenia, ADHD, autism, Klinefelter's disease, and Alzheimer's disease. The study design consists of 1) automated segmentation of MRI brain scans to obtain regional measurements of cortical thickness and volumetric measurements of brain structures including basal ganglia, 2) manual segmentation of brain structures and brain anomalies not amenable to automated segmentation such as Virchow-Robbins spaces, 3) correlation analyses between MRI brain measurements and available demographic (e.g. gender) and physiological (e.g. BMI) data, statistical analysis of group differences where the groups are defined by diagnosis, age, gender or by other potentially useful classification. Since all data were collected under other protocols there are no additional risks or benefits associated with this protocol. This protocol combines MRI data from disparate sources and can provide important information regarding factors that may affect the comparability of MRI scans obtained from different sites using various types of MRI scanners and pulse sequences to generate MRI images. It will also enable the analysis of specific subgroups with sufficient numbers of observations for meaningful statistics.

Examination of the correlation between the cerebral bloodflow and the clinical change under treatment with Reminyl retard® and the prediction of clinical change by measuring the cerebral bloodflow in patients with mild to moderate Alzheimer's Disease

PBA is a neurologic condition that is estimated to impact over a million patients and their families in the United States. PBA occurs secondary to an otherwise unrelated neurologic disease or injury, and manifests as involuntary, frequent, and disruptive outbursts of crying and/or laughing. Progress has been made in better understanding this debilitating condition, but much more needs to be done. That's why a new PBA patient registry, PRISM (Pseudobulbar Affect RegIstry Series), has been initiated. The goal of PRISM is to establish the prevalence and quality of life (QOL) impact of PBA in patients with underlying neurologic conditions including Alzheimer's disease Amyotrophic lateral sclerosis Multiple sclerosis Parkinson's disease Stroke Traumatic brain injury Because this is an observational registry, it doesn't require you to intervene with any specific treatment or procedure. Your participation allows the PRISM registry to collect and analyze data from your site and also compare it to national numbers captured in the PRISM registry about PBA across all of the major at-risk neurologic populations.

This study will be an observational study in which patients who have been prescribed CerefolinNAC® are invited to participate in surveys regarding their experiences with CerefolinNAC®. CerefolinNAC® is a medical food indicated for the distinct nutritional requirements of individuals under treatment for early memory loss with particular emphasis for those individuals diagnosed with or at risk for neurovascular oxidative stress and/or hyperhomocysteinemia; mild to moderate cognitive impairment with or without vitamin B12 deficiency, vascular dementia or Alzheimer's disease. The purpose of this study is to increase the understanding of the role of CerefolinNAC® in managing proper neuronal function in the brain, provide patients with personalized education and support, and contribute to the overall understanding of the needs and concerns of patients being treated for early memory loss.

The purpose of this observational study is to investigate the changes in cognitive functioning, behavior, and functional improvement in Alzheimer's disease patients treated with Galantamine who are living at home (i.e. not in permanent residential care), and to obtain information regarding usual clinical practice that can be used for communicating treatment expectations to patients and supporters.

The purpose of this study is to use brain imaging technology to examine the role of certain brain chemicals in individuals with Alzheimer's disease (AD) and in healthy volunteers. Cognitive dysfunction in people with AD is thought to arise from decreased chemical activity in specific parts of the brain. Decreases in alpha4beta2 nicotinic acetycholine receptors (nAChRs) have been found in the brains of people who died with AD; however, the status of this receptor system in living brains remains unclear. This study will use single photon emission computed tomography (SPECT) to study this receptor system in people with AD who have mild to moderate dementia and in healthy volunteers. In addition, this study will examine the relationship between cognitive dysfunction and nAChR deficits in the brains of individuals with AD. Participants with AD will have four clinic visits; healthy volunteers will have three visits. At Visit 1, participants will undergo a medical history, physical examination, and laboratory tests. Healthy volunteers will have a Mini-Mental State Examination (MMSE) cognitive function test. Participants with AD will have a MMSE and measurement of the severity of their dementia. During Visit 2, participants will undergo a magnetic resonance imaging (MRI) scan of the brain. At Visit 3, participants will undergo SPECT imaging. Only participants with AD will participate in Visit 4. During this visit, cognitive testing will be performed.

The purpose of this study is to evaluate people with mild memory problems, those with dementia, those at risk for developing Alzheimer's disease (AD), and healthy volunteers to identify markers of AD before the changes that occur with the disease begin. The origin and markers of progression for Alzheimer's disease (AD) are relatively obscure. Despite increased understanding of the underlying biology of AD, its clinical diagnosis is still made only after progressive cognitive decline; definitive diagnosis is confirmed at autopsy. This study will examine biomarker changes over time in a distinct cohort of people with an increased risk of developing AD. The study will also identify and track biological changes that occur with progressive dementia and compare those changes to the known cognitive and emotional disturbances that characterize AD. Individuals with a first-degree relative with AD will be recruited into an at-risk cohort. They will be followed and compared to a group of healthy volunteers for a minimum of 8 years.

The purpose of the study is to compare the risk of dementia in participants diagnosed with rheumatoid arthritis (RA) exposed to anti-tumor necrosis factor (TNF) therapy versus those exposed to methotrexate.

This study aims at exploring patients' ability to monitor their own memory performance depending on their primary deficit and the type of memory involved in the criterion task. The goal is to evaluate if semantic dementia (SD) and Alzheimer's disease (AD) differently affect patients' awareness of their memory abilities.

This study aims at the assessment of eye movement during autobiographical retrieval (i.e., retrieval of personal memories) in patients with Alzheimer's Disease.