Active clinical trials for "Alzheimer Disease"

The specific aims of the study are: Primary: To determine the presence and regional distribution of microglial activation, as assessed by Fluorine-18 (18F) labeled "Peripheral Benzodiazepine Receptor 06" (PBR06) -PET, in subjects with active Relapsing Remitting Multiple Sclerosis (RRMS), Secondary Progressive Multiple Sclerosis (SPMS), and Alzheimer's Disease (AD) as compared to healthy controls Secondary: To assess the relationship between microglial activation and clinical variables including disease severity and comorbidities (such as pain, fatigue and/or depression), as well as clinical MRI findings (such as lesions and atrophy) A pilot substudy aims to establish the non-inferiority of [F-18]PBR06 as compared with Carbon-11 [C-11] labeled "Peripheral Benzodiazepine Receptor 28" (PBR28) PET in patients with RRMS. Hypothesis: The working hypothesis is that there is microglial activation in multiple sclerosis and Alzheimer's disease as compared to healthy controls and that the pattern/ regional distribution of microglial activation is different in Multiple Sclerosis (MS) versus AD and correlates with disease severity and comorbidities. In addition, the investigators hypothesize that [F-18]PBR06-PET scans will be at least as good as [C-11]PBR28-PET scans, the current gold standard.

850,000 people live with dementia in the UK, with that number expected to rise to more than 1 million within the next 5 years. The most common type of dementia (55%) is Alzheimer's dementia, and vascular dementia is the second commonest type (15%). Mild cognitive impairment (MCI) affects up to 20% of older adults and describes a set of symptoms rather than a specific medical condition or disease. A person with MCI has subtle problems with one or more of the following: day-to-day memory, concentrating, planning or organising, language (eg struggling to find the right word), and judging distances and seeing objects properly. Although MCI significantly increases the risk of developing dementia (by up to 5 times), at present it is not possible to accurately predict which patients with MCI will progress to dementia. In recent times there has been an increasing awareness that problems with brain blood flow may contribute to the development, or progression, of dementia. Tests of mental abilities, with standardised questions and pen-and-paper tests are a key component of the formal diagnosis of dementia, yet little is known of the effects of these tests on brain blood flow. Brain blood flow can be can be assessed non-invasively by the use of Trans Cranial Doppler (TCD). This means using ultrasound probes over both sides of the head to measure changes in blood flow in one of the main brain arteries (the middle cerebral artery). This proposed study will therefore use TCD to evaluate changes in brain blood flow during performance of the Addenbrooke's-III (ACE-III) cognitive assessment in four key groups of patients, specifically: Healthy older adults Patients with mild cognitive impairment (MCI) Patients with vascular dementia Patients with Alzheimer's dementia

To follow-up on the safety of subjects who were previously treated in a double-blind trial of brexpiprazole.

This is a cross-sectional pilot study of Alzheimer's disease (AD) brain imaging biomarkers in Diabetes Prevention Program (DPP) outcomes study (DPPOS) participants from the New York City sites (Columbia and Einstein), comparing 10 persons originally randomized to metformin and 10 persons randomized to placebo in DPP. All study procedures will be conducted at Columbia University Irving Medical Center. Eligible participants will receive a PET scans and a brain MRI, which may be conducted in one, two, or three separate visits.

Alterations in sleep and the sleep / wake cycle, which are particularly common in Alzheimer's disease patients, could represent an early biomarker for cognitive decline and onset of dementia . Moreover, these disturbances in activity rhythms and sleep patterns represent modifiable factors and therefore potential targets for the prevention of certain neurodegenerative disorders. The main objective of this study will be to test the hypothesis that elderly people without major cognitive impairment who have circadian rhythm disorders of the sleep / wake cycle have structural and / or functional abnormalities in the central nervous system and more specifically of the hippocampal function which could represent a risk factor for the occurrence of cognitive impairment. Indeed, although many studies in both humans and animals suggest the existence of links between sleep alterations and age-related cognitive impairment, the causality of these observations is still not clear. This description of the anatomical and functional substratum of sleep / wake cycle alterations occurring in an elderly population will be based on joint analysis of multimodal brain imaging (MRI) and neuropsychology actimetry data. The SoRyMA-AMImage 3 protocol will correspond to the 2nd actimetry measurement point and the 3rd MRI measurement point of a larger population-based cohort AMImage. This project will collect data from the sleep / wake cycle (actimetry) from a sample of 100 patients included in AMI / AMImage 2 and relate them to brain imaging data (MRI). The main objective of the protocol is the evaluation of the link between changes in sleep and cycle parameters during aging and hippocampal functioning (through fMRI and neuropsychological score of hippocampal dependant tasks). The actimetry variables measured at the two follow-up (4 years apart) will make it possible to measure the degradation of the sleep and cycle parameters (through the reduction of sleep duration, sleep time, increase in sleep fragmentation and decrease in the relative amplitude of the rhythm). This framework will provide access to a very large amount of data that can be cross-referenced with actimetry data; the longitudinal character of this data collected over a decade will also make it possible to work on the evolution of the actimetry parameters and its relationship with the cognitive and clinical evolution of the subjects. Thus, these data will make it possible to study the prognostic value of the analyzed actimetry parameters in association with very complete clinical and neuropsychological data.

This is a multi-center, observational, feasibility study, to evaluate long term passive data collection, data quality, and user experience of HealthMode Agitation (Apps) to collect motion, location, physiological, and audio data; and eCOA and EMA responses with mobile devices (iPhone, Apple Watch). The purpose of this study is to evaluate and improve HealthMode Apps data collection and usability in subjects experiencing agitation in the context of dementia.

PET/CT scans with 18F-FDG can be carried out for the detection of neurodegenerative diseases with hypometabolisms characteristic of the pathologies sought. The diagnosis is given by the clinician after a visual analysis of the data. To complete the diagnosis, a semi-quantitative analysis of the images is recommended (European recommendations) in addition to the visual analysis.

The long-range goal is to identify an efficacious and practical intervention to improve sleep quality and duration for family caregivers of individuals with Alzheimer's disease and related dementias (ADRD). The main goal of this study is to determine feasibility of a self-administered hypnosis intervention with caregivers of individuals with ADRD by randomizing eligible participants into one of two study arms, self-administered hypnosis (treatment group) or sham white noise hypnosis (control group). The investigators are also examining the feasibility of accrual, outcome measures (diaries, actigraphy) and study design.

There is a need for caregiver-initiated and -implemented non-pharmacological interventions directly to and for the person with dementia, including environmental assessment and modification, as first-line treatments for behavioral and psychological symptoms of dementia (BPSD) in persons living with dementia (PLWD). Delivered via telehealth, Harmony at HOME (H@H) aims to train caregivers of persons with moderate to severe ADRD in the skills of assessing and modifying the home environment to promote "person-environment fit," a concept that posits that the ability to access features within a built environment (e.g. bathroom, stairs,) or that factors within the environment itself (lighting, noise level, temperature), especially when linked with individualized social support, contribute to or even shape behavior. In addition to the intervention, the first 10 caregiver participants to enroll will also be invited to participate in two focus groups that will be facilitated during and after the intervention. The first focus group focuses on experiences as a dementia caregiver in rural areas. The second focus group focuses on providing feedback regarding caregivers' perceptions, acceptability, and usefulness of the H@H intervention. These focus groups will be conducted as structured interviews with open-ended questions that encourage participants to share their experiences.

Analysis of gaze patterns during social cognition tasks and standardised exploration of a specific artwork, between elderly subjects without cognitive disorders and subjects with neurodegenerative diseases such as Fronto-Temporal Dementia, Alzheimer's Dementia or Parkinson's Disease