Mild Cognitive Impairment Clinical Trials

Apathy, a profound loss of initiative and motivation, is often seen in older Veterans with memory problems. Apathy leads to serious health problems, increases dependency, and caregiver burden. If untreated, apathy hastens the progression to frank dementia. In a pilot study, the investigators found that apathy, working memory, and function can be restored using magnetic stimulation in some but not all older Veterans. The reason for this variation is unknown. The investigators propose a three-phase study in 125 older Veterans with mild memory problems. Their motivation, memory, and function will be measured periodically. Veterans with apathy that are eligible for treatment will receive either real or sham magnetic stimulation to the front part of their brain over 20 sessions. Genetic testing and biomarkers will be used to differentiate those who respond to magnetic stimulation from those who do not. Impact on function, quality of life, and rates of progression to dementia will also be studied. A project modification was obtained to conduct a cross-sectional study, the COVID Dementia study. The cross-sectional study will examine the effect of the pandemic on MCI and AD patients and their caregivers ("individual COVID-related factors" such as, personally infected, death of a friend/family member, economic hardship, disruption in care, isolation), barriers to telehealth, caregiver distress, NPS, cognition (including onset of delirium), and function. Our goal is to develop a multi-pronged, remotely deliverable intervention to address consequences of healthcare disruptions in older Veterans with cognitive impairment. Aim 1. To explore the association between COVID-related factors and neuropsychiatric symptoms in individuals with MCI and AD. Hypothesis: The number of COVID-related factors endorsed by caregivers will be positively correlated with the severity of NPI-Q in individuals with MCI and AD. Aim 2. To assess cognition (telephonic version of the Montreal Cognitive Assessment; tMoCA12, and daily function (Functional Activities Questionnaire; FAQ13). Hypothesis: The number of COVID-related factors will be positively correlated with the severity of cognitive and functional deficits in individuals with MCI and AD. Aim 3. To explore the associations among COVID-related factors and caregiver distress. Hypothesis: Caregiver resilience and perceived social support will modify the association between COVID-related factors and severity of distress in caregivers. Read Less

This study evaluates the use of an EEG device using Event Related Potentials to help diagnose Alzheimer's Disease in the outpatient clinical setting. Read Less

The ultimate goal of this study is to develop non-invasive, painless repetitive transcranial magnetic stimulation (rTMS) protocols to prevent cognitive decline in patients with mild cognitive impairment (MCI) and cognitively normal individuals at high risk of developing Alzheimer's disease (AD). Currently, 1 in 9 adults over the age of 65 have AD, which currently totals more than 5 million Americans and this number is expected to rise as high as 16 million by 2050. MCI is a clinical syndrome that represents the gray area between healthy aging and dementia. Those with amnestic MCI (aMCI) have memory problems more severe than normal for their age and education, but their symptoms are not as severe as those of people with AD. Patients with aMCI are at high risk for AD. Notably, roughly half of those with MCI will continue to progress and convert to clinical dementia within 3 years. Alternatively, it is also worthwhile to study cognitively healthy older adults who carry genes that may increase the risk of AD. The frequency of the human APOE gene ε4 allele increases in patients with AD and the ε4 allele is also associated with an earlier age of disease onset. Currently, there are no known therapies that can effectively modify the progression and hallmark symptoms of AD. Therefore, it is crucial to provide an early intervention in patients with aMCI to delay or prevent the progression to AD. More specifically, this project has two specific aims: To plan personalized non-invasive brain stimulation location by brain Imaging with Magnetic Resonance Imaging (MRI) in Mild Cognitive Impairment (MCI) To identify potential personalized cognitive enhancement strategy (such as dosage or patterns) of Transcranial Magnetic Stimulation (TMS) in MCI. Techniques to artificially and precisely stimulate brain tissue are increasingly recognized as valuable tools both in clinical practice and in cognitive neuroscience studies among healthy individuals and people with clinical conditions. With these practices, researchers can safely stimulate specific regions of the brain to explore causal relationships that comprise the brain's circuitry and modulate behavior. Read Less

The main purpose of the Study is to develop an understanding over time and through multiple research projects, including surveys, interviews, online focus groups, and other primary research methodologies (A-LIST Research Projects) on what matters most to individuals concerned about brain health and those with and/or affected by Alzheimer's disease and other dementias, including caregivers. Read Less

The purpose of this study is to determine whether daily treatment with this new treatment approach, called COT would be effective in protecting the memory and brain regions of people who are already showing signs of memory loss. Read Less

The primary objective of the study is to evaluate whether a set of algorithms analysing acoustic and linguistic patterns of speech can detect amyloid-specific cognitive impairment in early stage Alzheimer's disease, based on archival spoken or written language samples, as measured by the area under the curve (AUC) of the receiver operating characteristic curve of the binary classifier distinguishing between amyloid positive and amyloid negative arms. Secondary objectives include (1) evaluating how many years before diagnosis of Mild Cognitive Impairment (MCI) such algorithms work, as measured on binary classifier performance of the classifiers trained to classify MCI vs cognitively normal (CN) arms using archival material from the following time bins before MCI diagnosis: 0-5 years, 5-10 years, 10-15 years, 15-20 years, 20-25 years; (2) evaluating at what age such algorithms can detect later amyloid positivity, as measured on binary classifier performance of the classifiers trained to classify amyloid positive vs amyloid negative arms using archival material from the following age bins: younger than 50, 50-55, 55-60, 65-70, 70-75 years old. Read Less

The primary purpose of this study is to attempt to replicate and extend promising pilot findings regarding the cognitive benefits of in-home neuro-exergaming with iPACES (interactive Physical and Cognitive Exercise System v3) for persons with mild cognitive impairment (MCI). Participants will include persons with MCI and their co-residing partner who both exercise at home 3-5 times per week for at least 6 months and are followed through one year. All participation is "remote" (completed at home), with all equipment (pedaler, tablet, etc.) supplied directly to the home, and with all study measures completed via videoconference and mail. Read Less

The study is designed to determine whether encapsulated fruit and vegetable juice concentrates can improve biological indicators of cognitive and multiple dimensions of memory and learning. Read Less

The Atlas of Retinal Imaging in Alzheimer's (ARIAS) study is a 5-year study examining the natural history of retinal imaging biomarkers associated with disease risk, disease burden, and disease progression in Alzheimer's disease (AD). The objective of this project is to create a 'gold standard' reference database of structural anatomic and functional imaging of the retina, in order to enable the identification and development of both sensitive and reliable markers of AD risk and/or progression. Our ultimate goal is to develop a new screening protocol that identifies changes related to AD 10-20 years before AD is clinically visible. Read Less

The purpose of this study is to assess the effects of non-invasive brain stimulation on memory in cognitively unimpaired older adults and in patients amnestic mild cognitive impairment (aMCI) due to Alzheimer's disease (AD). This study will use repetitive Transcranial Magnetic Stimulation (rTMS) to stimulate nodes of the Default Mode Network (DMN)- which is thought to support episodic memory and to be affected by Alzheimer's pathology. We will use functional connectivity MRI (fcMRI) to assess changes in functional network architecture following the stimulation. We will also assess putative cognitive improvements resulting from the stimulation by in-depth memory testing. Read Less

The Georgetown University Memory Disorders Program, part of the Department of Neurology, is conducting pilot studies of the feasibility of various diagnostic tests for Alzheimer's disease, mild cognitive impairment and other neurodegenerative diseases. Further, this study is assessing longitudinal changes in biological, lifestyle, and cognitive assessment collection. The primary goal of this study is to examine the feasibility of biochemical assays, genetic testing, and cognitive and lifestyle assessments in the ante-mortem diagnosis of Alzheimer's disease, mild cognitive impairment and other neurodegenerative diseases. This research involves genetic and cognitive status testing but the findings will not be shared with research subjects. This will be accomplished ex vivo using blood, and/or cerebrospinal fluid (CSF) specimens from patients with a diagnosis of probable Alzheimer's disease, mild cognitive impairment, or other neurodegenerative diseases and from normal controls. Read Less

The main objective of this research project is to provide a comprehensive clinical database of patients with Alzheimer's disease (AD) and other forms of dementia, individuals with mild cognitive impairment (MCI), and age-matched normal controls. The study will also attempt to identify cognitively normal individuals at genetically defined risk for Alzheimer's disease through genetic screening. All participants are seen annually. Autopsies to establish diagnoses in patients with dementia, patients with mild MCI, and cognitively normal elderly control subjects will also be conducted. Read Less