Active clinical trials for "Lewy Body Disease"

This research is being done to develop a unique matching process for caregivers of persons living with dementia, such as Alzheimer's disease, Lewy body dementia, frontotemporal degeneration, or other dementia syndromes. Dementia caregivers often assume greater caregiving burden than do non-dementia caregivers, and the caregiving duration tends to be longer. Many caregivers do not have the adequate support they need. Peer-to-peer support has been shown to improve quality of life, increase use of services, improve caregiver health, and reduce hospitalizations in the person they are caring for. This study will assess a technology platform and matching process for the purpose of peer-to-peer emotional support aimed at improving overall wellbeing in dementia care partners/caregivers.

Lewy Body Dementia (DLB) is the second most common type of neurodegenerative dementia and characterized by loss of cholinergic neurons in the cerebrum and possibly also internal organs. A novel tracer, 18F-fluoroethoxybenzovesamicol (18F-FEOBV), binds to the cholinergic vesicle transporter, a protein expressed uniquely in the vesicles of cholinergic pre-synapses. Our aim is to investigate the cholinergic denervation in patients with DLB using 18F-FEOBV. The investigators plan to recruit 30 patients with DLB and 20 healthy controls to extensive cognitive assessment, computed and positron emission topography, magnetic resonance imaging, and samples of blood. The investigators hypothesize that patients with DLB, compared to controls, have decreased cholinergic innervation in cortical and subcortical areas of the brain, intestines and heart, and that the denervation corresponds to symptoms of autonomic and cognitive dysfunction.

Dementia; It is a chronic syndrome characterized by a general and progressive deterioration in cognition, including memory, orientation, language, and comprehension. The prognosis of this progressive and neurodegenerative disease after diagnosis may differ between individuals. In its broadest sense, the prognosis after a diagnosis of dementia; can be defined by shortening of life span, high level of cognitive and functional loss, decrease in quality of life and increased need for care. However, the prognosis of different types of dementia is highly variable. Because it is the most common type of dementia, studies are usually on Alzheimer's disease. It constitutes 50-75% of total dementia cases. Vascular dementia is the second most common cause of dementia and accounts for approximately 15% of dementia cases. Dementia with Lewy bodies constitutes 10-20% of the total dementia patients and ranks second among degenerative dementia types. Frontotemporal dementia, which mimics psychiatric disorders and has prominent behavioural problems, and Parkinson's disease-associated dementia, which is characterized by cognitive impairment that can be added to the existing picture in Parkinson's patients, are also counted among other types of dementia. Prognosis-related data on dementia types other than Alzheimer's disease are limited in the literature. Determining the prognosis is important to support patients, anticipate long-term health problems, plan physician and healthcare provision, and support patients with dementia.In view of the lack of sufficient data on dementia types other than Alzheimer's disease, it is aimed to contribute to the literature on this subject and to determine the factors that may affect prognosis, morbidity and mortality in patients belonging to all dementia types.

Patients with memory disorders are experiencing different trends which are difficult to predict. Moreover, the distinction between Lewy body disease and Alzheimer's disease is not easy as both diseases can present similar symptoms. Nowadays, routine examinations exist and can improve the diagnosis but there are not specific enough of one of those two pathologies. Lewy body disease is characterized by the presence of particular structures in patient's brain, called "Lewy body", composed of a protein called "alpha-synuclein". The aim of this study is to measure the rate of alpha-synuclein in cerebrospinal fluid. This measurement could allow us to differentiate patient with Alzheimer's disease from those with Lewy body disease.

This study aims to determine factors related to diagnosis delay for patients with young onset dementia (first symptoms before 60 years old) who live in North of France.

Alzheimer's disease (AD) and Lewy body's dementia (LBD) are two frequent neurodegenerative pathologies. They differ in their expression, their evolution but share same features which make their diagnosis uneasy. Constructional apraxia has been described in both disease.The underlying mechanisms have been less studied and could be different in AD and LBD. The definition of the constructional apraxia is purely descriptive and few models are inconclusive. It is admitted that drawing tasks involve visuo-perceptive and visuo-spatial abilities, executive functions and working memory as well as purely "constructive" skills. Regarding to different studies, visuo-perceptive abilities are more severely impaired in LBD than in AD and are considered as an early onset sign of the disease. Executive functions deficits are documented in AD and LDB and could contribute to the drawing impairment. It is possible to compensate the planning disorders in giving patient the best strategy to use. If drawing impairment persists, they should result of others mechanisms like visuo-perception, visuo-spatial or constructive deficits. The investigators suggest that giving the best planning strategy will help more AD patients who are supposed to fail in raison of an executive impairment, than the LDB group who is supposed to present visuo-perceptive deficits. An MRI will be proposed to study the cerebral areas involved in constructional apraxia.

The primary objective of the study is to evaluate the feasibility of eliciting continuous narrative speech in different neurodegenerative and psychiatric indications, using remote, self-administered speech tasks, as measured by the average length of speech elicitation for each speech task during the first week of self-assessment. Secondary objectives include (1) evaluating the reliability of speech tasks in the remote self-administered setting, as measured by the intra- and inter-subject variance; (2) accessing the adherence of speech tasks in this setting, as measured by the subject average fraction of days during the first week, where at least one task response is submitted; (3) evaluating the feasibility of using speech tasks in the setting of a telemedicine videoconference, as measured by the average length of speech elicited in each group; (4) evaluate whether a set of acoustic and linguistic patterns can detect each indication, compare to either a control group or all other indications, as measured by the area under the receiver operating characteristic curve (AUC), sensitivity, specificity and Cohen's kappa of the relevant binary classifier; (5) evaluating how the performance of such algorithms can be impacted by speaker and environment covariates, as measured by the Kendall rank correlation coefficient of the AUC of each classifier and each of age group, gender and speech-to-reverberation modulation energy ratio.

The goal of this study is to examine olfactory function in preclinical subjects or individuals with neurological diseases such as Probable Alzheimer's Disease (PRAD), Frontotemporal Dementias (FTD), Dementia with Lewy Bodies (DLB), Traumatic Brain Injury (TBI), and Amyotrophic Lateral Sclerosis (ALS).

The objective of the ADDIA clinical Proof-of-Performance study is to validate the performance of ADDIA' blood biomarkers for diagnosis of Alzheimer's disease (AD). ADDIA clinical study is a multi-centre, non-interventional, prospective, proof-of-performance study with only one visit. About 800 well-characterized subjects will be recruited into 3 groups in 2:1:1 ratio, namely patients with Alzheimer's disease (AD), patients with non-AD neurodegenerative disease (NAD) and 200 control subjects (healthy as compared to their age). 400 patients with Alzheimer's disease (AD): 200 patients with mild AD, 200 patients with moderate-to-severe AD, 200 patients with non-Alzheimer's neurodegenerative diseases (NAD), 200 controls (healthy as compared to their age).

The diagnosis and management of movement disorders, such as Parkinson's disease (PD), parkinson-plus syndromes (PPS), dystonia, essential tremor (ET), normal pressure hydrocephalus (NPH) and others is challenging given the lack of objective diagnostic and monitoring tools with high sensitivity and specificity. A cornerstone in research of neurological disorders manifesting as MDi is the investigation of neurophysiological changes as potential biomarkers that could help in diagnosis, monitoring disease progression and response to therapies. Such a neuro-marker that would overcome the major disadvantages of clinical questionnaires and rating scales (such as the Unified Parkinson's disease rating scale -UPDRS, for PD, The Essential Tremor Rating Assessment Scale -TETRAS, for ET and others), including low test-retest repeatability and subjective judgment of different raters, would have real impact on disease diagnosis and choice of interventions and monitoring of effects of novel therapeutics, including disease modifying therapies. To address this, ElMindA has developed over the last decade a non-invasive, low-cost technology named Brain Network Activation (BNA), which is a new imaging approach that can detect changes in brain activity and functional connectivity. Results from proof-of concept studies on PD patients have demonstrated that: 1) PD patients exhibited a significant decrease in BNA scores relatively to healthy controls; 2) notable changes in functional network activity in correlation with different dopamine-agonist doses; 3) significant correlation between BNA score and the UPDRS). 4) BNA could also differentiate early PD from healthy controls