47 Clinical Trials for Various Conditions
The primary objective is to characterize trajectories of change on the primary outcome measures in this study population through longitudinal collection of measures of cognition, function, behavior, and health status.
The purpose of this study is to develop small molecule radio-labeled probes of beta-amyloid, to be used with positron emission tomography (PET) for early detection and treatment monitoring of Alzheimer disease (AD). The study hypothesis is that PET imaging of small molecule probes, in the form of novel fluorescent dyes with radioactive labels, will demonstrate cerebral patterns in patients with AD that are distinct from those of age-matched persons who are cognitively intact.
This is an optional sub-study that will enroll participants from LIFE-DSR parent protocol. The aim is to assess change over 16 months in individuals with Down syndrome through individualized goals set by their caregivers. This sub-study also aims to assess the feasibility of Goal Attainment Scaling in the DS-AD population.
The purpose of this study is to assess the safety, tolerability, immunogenicity and pharmacodynamic effects of ACI-24.060 in subjects with prodromal Alzheimer's disease and in non-demented adults with Down syndrome.
The primary objective of this study is to assess the presence of amyloid in non-demented/functionally stable adults with DS as a function of age, dividing the sample into amyloid-positive and amyloid-negative groups. We will also obtain baseline cognitive measures across a range of areas that are often affected by AD.
This is an optional sub-study that will enroll participants from the LIFE-DSR parent protocol. Participants will undergo assessments at two timepoints, including: additional blood samples for PBMC and RNA extraction, as well as a lumbar puncture for collection of CSF, and/or MRI and tau PET imaging. Sub-study visits will be scheduled around a similar calendar-day as the parent protocol study visits (e.g., Month (M) 0 (M0) and M16, or M16 and M32).
To test the long term effect of a light treatment on cognition, sleep and metabolism in patients with Mild cognitive impairment (MCI) or mild Alzheimer's disease or related dementia (ADRD).
This study's main hypothesis is that a delivering a tailored lighting intervention (TLI) will provide a successful means for promoting circadian entrainment and treating metabolic disease and inflammation in patients with mild cognitive impairment (MCI) and Alzheimer's disease (AD) and Alzheimer's disease and related dementias (ADRD). As such, the proposed studies have the potential to provide important insights into the link between AD/ADRD and type 2 diabetes (T2DM) by identifying the disruption of circadian rhythms as a key component in the metabolic impairment. Preliminary data from ongoing studies demonstrates a beneficial effect of light treatment on sleep and depression. If positive results are observed, the potential also exists to transform the manner in which homes, assisted living facilities, and nursing homes are lighted by delivering a simple, practical, non-pharmacological intervention to promote entrainment, improve sleep, and reduce metabolic disease in AD and mild AD MCI patients. This randomized, placebo-controlled, crossover study involving 60 AD/ADRD patients who live in controlled environments (i.e., assisted living facilities and nursing homes), will investigate whether 8 weeks of exposure to a TLI designed to increase circadian entrainment improves sleep, mood, inflammatory markers, and metabolic control, compared to a control, circadian-inactive light.
The objectives of this study are to determine the feasibility and potential efficacy of remotely delivered group exercise sessions to increase daily moderate to vigorous physical activity in adults with Down syndrome, relative to a usual care control. Participants will be randomized to attend 40 min remotely delivered group moderate to vigorous physical activity (MVPA) sessions at low frequency (1 session/wk.,RL), high frequency (3 sessions/wk., RH), or usual care control usual care control (UC). In addition to the group MVPA sessions, participants in both the RL and RH groups will also receive a step counter, access to resources for increasing MVPA, and one 20-min remotely delivered individual support/education session/wk. Content for both the RL and RH arms will be identical with the exception of group session frequency (1 vs. 3/wk.). Participants in the UC arm will receive a step counter, access to resources for increasing MVPA, and monthly remote individual support/education).The primary aim is to Assess daily MVPA (min) in the RL, RH, and UC arms at baseline, 3, 6, 9, and 12 mos., and obtain effect sizes for change in MVPA over 12-mos.Secondary Aim 1 is to assess the impact of MVPA on cardiovascular fitness, quality of life, cognitive function, and brain parameters related to Alzheimer's Disease (whole and regional brain volume, functional connectivity, and cerebral blood flow) at baseline, 6, and 12 mos. Secondary Aim 2 will determine the feasibility (retention, session attendance, use of recorded sessions (RH/RL only) of RL, RH, and UC interventions.
In order to treat individuals with Down syndrome (DS) better and more efficiently and to gain more insights on its relation to Alzheimer's disease (AD), a comprehensive understanding is needed for its progression in the early or preclinical phase using various biomarkers. DS is a significant risk factor for the early development of AD, with plaques and tangles typically developing by age 35. A better understanding is needed of early markers of the disease in DS patients. Additionally the DS population represents a unique group - due to this elevated risk for AD - to examine biomarkers that may translate in general outside of the DS population to individuals at risk for developing late onset AD. In this proposal, the researchers will assess the longitudinal changes of various biomarkers in a cohort of individuals similar in design to the cross-sectional sectional study in the preliminary data.
Nighttime agitation in persons with Alzheimer's disease causes patient suffering, distresses caregivers, and often results in prescriptions for harmful antipsychotics. Effective treatments are lacking because of limited knowledge of the etiology of nighttime agitation. The investigators propose a clinical trial to better elucidate whether a sleep disorder, restless legs syndrome, may be a mechanism for nighttime agitation, and if treatment with gabapentin enacarbil (Horizant®) reduces nighttime agitation, improves sleep, reduces restless legs syndrome behaviors, and reduces antipsychotic medications.
The primary purpose of this study is to evaluate the safety and tolerability of ION269 in adults with Down syndrome with evidence of brain amyloid positivity.
Progressive age-related cognitive deficits occurring in both AD and DS have been connected to the degeneration of several neuronal populations, but mechanisms are not fully elucidated. The most consistent neuronal losses throughout the progression of AD are seen in cholinergic neurons where these losses negatively affect cognition, particularly in attention, learning, and memory formation. Evidence of reduced cholinergic integrity in DS is largely limited to animal models and post-mortem human data. The investigators propose to use molecular, functional, and structural biomarkers to assess the cholinergic integrity in adults with DS. The investigators anticipate using the data gathered in this pilot study to inform future study designs to determine AD risk stratification in DS by identifying individuals who show an accelerated decline in cholinergic integrity that correlates with cognitive and neurobehavioral changes. Also, our cholinergic biomarkers may identify whether individuals with DS are likely to respond to pro-cholinergic interventions, including the novel cholinergic modulators that are being developed to enhance cholinergic-sensitive cognitive functioning. The investigators anticipate using the data gathered here to inform future treatment studies in TRC-DS and beyond where novel cholinergic treatments may offer opportunities for early intervention in DS and be complementary to disease-modifying approaches such as anti-amyloid treatments.
The TBI-AD/ADRD Caregiver Support Intervention (TACSI) incorporates psychosocial and psychoeducational approaches with the objective of: a) identifying stressors associated with caregiving for family members who have the dual diagnosis of traumatic brain injury and dementia; and b) supporting caregivers in developing more effective coping and communication strategies as well as enhanced caregiving self-efficacy.
The purpose of the Trial-Ready Cohort - Down Syndrome (TRC-DS) is to enroll 120 healthy adults with Down syndrome (DS), between the ages of 25-55, into a trial ready cohort (TRC), and up to 450 participants in total including co-enrolled in the Alzheimer Biomarkers Consortium - Down Syndrome (ABC-DS) study. Participants enrolled in the TRC-DS will undergo longitudinal cognitive and clinical assessment, genetic and biomarker testing, as well as imaging and biospecimen collection. Using these outcome measures, researchers will analyze the relationships between cognitive measures and biomarkers of Alzheimer's disease (AD) to identify endpoints for AD clinical trials in DS that best reflect disease progression. To learn more about the study and participating sites, visit our study website at: https://www.trcds.org/. TRC-DS is collaborating with the Alzheimer's Disease Biomarker Consortium-Down Syndrome (ABC-DS) to allow study participants to be concurrently enrolled in both ABC-DS and TRC-DS, referred to as "co-enrollment". ABC-DS is a longitudinal, observational research study that is overseen at University of Pittsburgh Coordinating Center. ABC-DS participants who express interest in potentially joining a clinical trial in the future and who meet TRC-DS eligibility criteria, may choose to co-enroll in TRC-DS at an ABC-DS Site. Co-enrolled participants will adhere to the ABC-DS protocol and schedule of activities, but agree to share their data with the TRC-DS team and to receive invitations for future participation in clinical trials. Fore more information on ABC-DS please visit https://www.nia.nih.gov/research/abc-ds or http://abcds.pitt.edu/.
The purpose of this study is to evaluate the safety and efficacy of the ExAblate Model 4000 Type 2.0 System as a tool to disrupt the blood-brain barrier (BBB) in patients with probable Alzheimer's Disease (AD).
This study plans to establish a large bank of blood, cerebral spinal fluid (CSF), imaging, and clinical data. These data and samples will be used for future research into the causes of Alzheimer's disease (AD), Down Syndrome (DS) and other diseases that cause thinking and memory problems. This future research will also study how treatments for these diseases work. This research may help develop new treatments for some diseases of the nervous system and help understand these diseases better.
Non-randomized natural history study involving 12 subjects with Down Syndrome, who are aged 30-60 years old. This study will observe 3 different groups: four non-demented subjects between ages 30-40 years old, four non-demented subjects between ages 40-50 years old, and four demented subjects 50-60 years old. Currently available longitudinal data in DS suggest a high rate of transition to dementia from the late 40s through the early 50s of these individuals. This, together with the universal presence of plaques in DS by their mid 40s makes this age range ideal for studying the development of AD.
This study will ascertain whether nicotine is safe and tolerable in DS patients, help with dose-ranging of nicotine in DS, look for evidence of enhancements in cognitive functioning, and establish evidence for biological and behavioral correlates of nicotinic stimulation effects. The knowledge gained from the translational aspects of this project may also guide the application of new nicotinic drugs in DS and generate, for the first time, data on the importance of nicotinic receptor changes in the development of cognitive impairment in DS adults. Hypotheses: * Transdermal nicotine treatment will be well tolerated out to one month by non-smoking DS patients without significant adverse effects. * Nicotine will enhance cognitive performance by one month compared to baseline and post-treatment testing. * Nicotine will enhance functioning detectable by clinician and/or informant ratings (pre-post).
The purpose of this study is to develop small molecule radio-labeled probes of beta-amyloid, to be used with positron emission tomography (PET) for early detection and treatment monitoring of Alzheimer disease (AD). The study hypothesis is that PET imaging of small molecule probes, in the form of novel fluorescent dyes with radioactive labels, will demonstrate cerebral patterns in patients with AD that are distinct from those of age-matched persons who are cognitively intact.
The purpose of this study is to determine if the metabolic syndrome is a risk factor for cognitive decline and if this association is modified by inflammation.
The objective of this study is to determine the effects of a 6-month, home-based personalized transcranial direct current stimulation (tDCS) intervention targeting the left dorsolateral prefrontal cortex on cognitive function, dual task standing and walking, and other metrics of mobility in older adults with motoric cognitive risk syndrome (MCR).
The goal of this study is to determine if weight loss or changes in dietary intake can help prevent of delay adults with Down syndrome from developing Alzheimer's Disease Adults with Down syndrome without dementia will be randomized to either a weight loss group or a general health education control group. The weight loss group will be asked to follow a reduced energy diet, attend monthly education sessions delivered remotely and self-monitor diet and body weight using commercially available web-based applications. The control group will be asked to attend remotely delivered monthly education sessions on general health education topics. All participants will come to the University of Kansas Medical Center, 3 times across 12 months for a blood draw, cognitive testing, a MRI, assessment of height and weight, and assessment of diet intake.
Down Syndrome (DS) is characterized by an additional copy of chromosome 21, which also increases risk of Alzheimer's Disease (AD). The investigators' lab found a non-invasive way to remove toxic proteins from the brain in AD mouse models. Remarkably, treated mice also have improved memory on behavioral testing. The investigators then translated this non-invasive method, which uses light and sound to stimulate the brain, to be used in mild Alzheimer's patients and cognitively normal adults. The investigators have also translated this research into a vibrating speaker device to study tactile vibration to stimulate the brain as well. For the present study, 30 participants with Down Syndrome and 30 cognitively normal adult controls will be recruited, and the investigators will assess their brain waves with electroencephalogram (EEG) during light, sound, and tactile stimulation. The investigators will also test for safety, feasibility, and cognitive performance before and after a 30-60 minute session of light and sound stimulation to optimize the stimulation devices for use in the DS population.
The goal of this study is to determine the safety and efficacy of the administration of vitamin E, which has been shown to delay the progression of Alzheimer's disease, in slowing the rate of cognitive/functional decline in older persons with Down syndrome.
The purpose of this project is to develop a monitoring, modeling, and interactive recommendation solution (for caregivers) for in-home dementia patient care that focuses on caregiver-patient relationships. This includes monitoring for mood and stress and analyzing the significance of monitoring those attributes to dementia patient care and subsequent behavior dynamics between the patient and caregiver. In addition, novel and adaptive behavioral suggestions at the right moments aims at helping improve familial interactions related to caregiving, which over time should ameliorate the stressful effects of the patient's illness and reduce strain on caregivers. The technical solution consists of a core set of statistical learning based techniques for automated generation of specialized modules required by in-home dementia patient care. There are three main technical components in the solution. The first obtains textual content and prosody from voice and uses advanced machine learning techniques to create classification models. This approach not only monitors patients' behavior, but also caregivers', and infers the underlying dynamics of their interactions, such as changes in mood and stress. The second is the automated creation of classifiers and inference modules tailored to the particular patients and dementia conditions (such as different stages of dementia). The third is an adaptive recommendation system that closes the loop of an in-home behavior monitoring system.
Background: In Alzheimer s disease (AD) the brain cannot use glucose as a fuel. The brain can use ketones as a fuel instead of glucose. Researchers want to test a supplement, Ketone Ester (KE). It may improve brain metabolic function and cognition in normal people and, perhaps, down the road, in patients with AD. Objective: To study the change in brain ketone levels in people after 28 days of taking KE compared with baseline and placebo. Also, to study changes in cognitive performance. Eligibility: People 55 years old or older with metabolic syndrome and no cognitive impairment Design: Participants will have 4 visits. Participants will be screened at Visit 1 with: Medical history Physical exam Blood and urine tests Cognitive testing Participants will be randomly assigned to receive either the study supplement or a placebo with same amount of calories. Neither they nor the researchers will know which they receive. Visit 2 will include repeats of some screening tests. It will also include: Stool sample (brought from home) MRI/MRS: Participants will lie on a table that slides in and out of a scanner. A coil will be placed over their head. They may be asked to perform leg exercises. First dose of study supplement or placebo About 2 weeks after Visit 2, Visit 3 will include blood and urine tests and a questionnaire. About 2 weeks after Visit 3, Visit 4 will include repeats of the Visit 2 tests. Participants will drink the study supplement or placebo 3 times per day during the study. They will keep a daily log of each dose. They will bring the log to Visits 3 and 4. Participants will by contacted by phone once per week during the study to see how they are doing.
The purpose of the study is to evaluate the use of autologous Bone Marrow Derived Stem Cells (BMSC) as a means to improve cognitive impairment as occurs in Alzheimer's Disease and other dementias and to improve behavior and socialization issues which occur in adult Autism Spectrum Disorder. The use of Near Infrared Light, in conjunction with the use of BMSC, will also be assessed.
This study aims to develop and evaluate biomarkers using non-invasive optical coherence tomography (OCT) and OCT angiography (OCTA) as well as ultra-widefield (UWF) fundus photography to assess the structure and function of the retinal and choroidal microvasculature and structure in persons with mild cognitive impairment (MCI) and Alzheimer's Disease (AD), Parkinson's Disease (PD), or other neurodegenerative disease, diseases as outlined.
The overall goal of this imaging trial is to characterize \[18F\]MNI-815, a PET radioligand for imaging Tau.