Active clinical trials for "Alzheimer Disease"

The purpose of this research is to better understand how dementia affects activity in different parts of the brain.

The hypothesis is that the differential extent of microstructural damages in the affected brain regions can be specific to the disease of interest and could reflect the clinical severity. Therefore, the investigator propose that whole brain parcellation of diffusion MRI can be used to improve diagnosis and prediction of clinical outcomes in Parkinson's Disease. A regression model between clinical severity and two year clinical outcomes and diffusion properties from multiple parcellated regions will be developed. Blind validation will be performed.

This Our Care Wishes- Dementia pilot study is adapting an existing successful online advance care planning platform to the specific needs of persons living with dementia and shared decision-makers (SDMs) and testing the usability and acceptability among nursing home residents and SDMs.

Dementia is a common neurodegenerative syndrome in aged population. Alzheimer's disease (AD) is the most common disease. The main pathological findings in AD include senile plaques (SP) and neurofibrillary tangles (NFT). The b-amyloid is the main peptide in SP and tau protein is the main finding in NFT. In addition, b-amyloid is considered as a disease biomarker, but the severity of AD is related with the tau protein. Recently a new tracer 18F-PM-PBB3 has been introduced in tau PET images. In a prelimary study with the 18F-PM-PBB3, the tau PET scan provide a good tool to evaluate tau deposition pattern among healthy volunteers, and patients with mild and moderate dementia due to AD. In this study we will enroll 20 healthy controls, 20 amnestic mild cognitive impairment patients (aMCI), 20 mild-moderate dementia due to AD patients and 10 other dementia such as frontotemporal dementia patients. All of the subjects will receive 18F-PM-PBB3 tau PET scan, and 18F-flobetapir (AV-45) amyloid PET scan, brain magnetic resonance images and clinical evaluation. We will follow up the clinical features for 2 years to understand the disease progression, disease conversion from aMCI to AD. The study aims to investigate the deposition patterns of tau protein with 18F-PM-PBB3 and amyloid protein with 18F-flobetapir in patients with amnestic mild cognitive impairment due to AD, mild to moderate degree of dementia due to AD and healthy controls. The study will provide the information of these two proteins in different stages of dementia patients. The results may help the strategy in selection of anti-dementia drugs in the pharmaceutical company and industry and reduce the economic burden for the society. The study also can improve the understanding of Alzheimer's disease in academic research.

This research will test the WeCareAdvisor tool for family caregivers of military veterans with dementia to help caregivers assess, manage and track behavioral symptoms and their contributing factors (e.g., pain, sleep disturbance), and that provides tailored strategies for in-home, medication-free behavior management. 60 caregiver-person with dementia dyads will be recruited (30 Treatment Group, 30 Wait-List Control Group).

The Ontario Neurodegenerative Disease Research Initiative (ONDRI) is a province-wide collaboration studying dementia and how to improve the diagnosis and treatment of neurodegenerative diseases including: Alzheimer's disease (AD) Parkinson's disease (PD) amyotrophic lateral sclerosis (ALS or Lou Gehrig's disease) frontotemporal lobar degeneration (FTD) vascular cognitive impairment, resulting from stroke (VCI)

A second-generation tau PET image tracer 18F-PM-PBB3 (APN-1607 or MNI-958) has been developed by National Institute of Radiological Sciences. The new tracer solved the off-target binding issue. This study will evaluate new quantitative methods with PMPBB3, by utilized dual phase scanning protocol to extract blood flow and Tau protein binding information, to evaluate appropriate reference brain regions, to improve the normalization efficiency of brain imaging, and to establish a brain template image analysis platform.

To investigate the clinical safety and effectiveness of donepezil hydrochloride administration in patients with mild or moderate Alzheimer's Disease

The purpose of this observational study is to determine whether the vaccine (UB 311), targeting the N-terminal amino acids (1-14) of the amyloid beta peptide, has long-term immunogenicity and efficacy in individuals diagnosed with mild or moderate Alzheimer's disease (AD) who previously received UB 311-treatment. Amyloid beta was selected as the target antigen based on supporting evidence of the hypothesis that places the accumulation of amyloid beta at the initiating step of AD.

Neuropsychiatric symptoms form part of the clinical picture of Alzheimer's disease (AD) and other dementias. Irrespective of the severity of the disease, the most frequently encountered symptom is apathy. Apathy is increasingly diagnosed in patients with neurological and psychiatric conditions. Apathy is a disorder of motivation, defined as "the direction, intensity and persistence of goal-directed behaviour". Most of the current descriptions acknowledge this point and consider apathy in terms of a lack of goal-directed behaviour, cognition or emotion. The classical neuropsychiatric symptom assessments are subjective structured interview-based, using input from the caregiver and/or the patient. New technologies are likely to provide us with a more objective measure. An example is ambulatory actigraphy, consisting of a piezoelectric accelerometer designed to record arm movement in three dimensions. The aim of the present study is to assess using actigraphy and video recording signal, AD patients with (n = 15) and without (n = 15) apathy and control subjects (n = 5) during an activity of daily living scenario .