Active clinical trials for "Alzheimer Disease"

This is a randomized, double-blind, placebo-controlled clinical trial; that will evaluate the effectiveness of the use of transcranial pulse stimulation in people living with Alzheimer's disease, coming from the Institute of Psychiatry (IPQ) of the Hospital das Clinicas, Faculty of Medicine, University of São Paulo, and the Institute of Physical Medicine and Rehabilitation (IMREA) at the Hospital das Clínicas, Faculty of Medicine, University of São Paulo. Participants will be classified according to the stage of Alzheimer's disease, determined by a psychiatrist and neuropsychologists. A total of 50 volunteers will be randomized blindly. In addition to evaluating the clinical course and imaging examination, the use of scales that assess functional and cognitive disability will be used for the recruitment of volunteers. Volunteers will be randomized into two study groups, and will receive the intervention that will consist of ten sessions, held twice a week. The Storz Neurolith™ equipment (Storz Medical, Tagerwillen, Switzerland) will be used to administer transcranial pulse stimulation.

This study will explore the different factors associated with drug response to acetylcholinesterase (AChE) inhibitor (donepezil) and NMDA receptor antagonist (memantine) in patients with Alzheimer's Disease.

The purpose of this study is to evaluate the effects of tricaprilin (20 g twice a day) on cognition, activities of daily living, resource utilisation, safety and tolerability, in subjects with mild to moderately severe probable AD. This is a randomised, double-blind, placebo-controlled, parallel-group, multi-centre design in up to 535 participants.

The Anti-Aβ mAb CED Study is a prospective, longitudinal coverage with evidence development (CED) study using clinical data, patient assessments, and administrative claims data of the Medicare population, conducted in accordance to the National Coverage Determination (NCD) on Monoclonal Antibodies Directed Against Amyloid for the Treatment of Alzheimer's Disease (AD).

Dementia is the major cause of disability and dependency among older adults worldwide affecting memory, cognitive abilities and behavior, interfering with one's ability to perform daily lives activities. Although age is the strongest known risk factor for the onset of dementia, it is not a natural or inevitable consequence of aging. Dementia not only affects older people, since up to 9% of the cases appear before 65 years. The impact of dementia is highly important in financial terms also in human costs to countries, societies and individuals. Dementia is an umbrella term for several diseases, being Alzheimer's disease (AD) the most common form, contributing to 60-70% of cases. Other major forms include Lewy bodies Dementias (LBDs) and frontotemporal dementia (FTD). The role of the gastrointestinal microbiota in human brain development and function is an area of increasing interest and research. A large number of studies suggest that the gut microbiota can influence the brain, cognition and behavior of the patients, and also modulate brain plasticity, modifying brain chemistry via various mechanisms like neural, immune and endocrine Within these last two years some studies have showed differences in the microbiota of the AD patients from healthy controls. In this sense, increasing number of studies, most of them in animal models, support the notion that probiotics have significant benefit in maintaining homeostasis of the Central Nervous System. And recent studies try to replicate this finding in AD patients with controversial results. The main objective of DEM-BIOTA project is to improve the knowledge of the relationship between microbiota and dementia. DEM-BIOTA will explore the microbiota differences between dementias: AD, LBDs, that includes: Parkinson disease dementia (PDD) and Lewy Body Dementia (LBD) and FTD-behavioral variant, also in Mild Cognitive Impairment (MCI) to study the progression; in our context (Mediterranean diet and lifestyle) and characterize them in relation to neurocognitive and neuropsychiatric symptoms as well as patient functionality (dependency level). Moreover, the capacity of a probiotic compound in reverting or improving neurocognitive and neuropsychiatric symptoms and patient functionality in a sample of AD patients will be also studied.

The main objective of this study is to evaluate the effect of periodontal therapy in in subjects with a clinical diagnosis of mild to moderate AD dementia.

At the time of biomarker-substantiated diagnosis for a given AD patient it remains unclear to what extent the disease will devastate cognitive abilities within the next years. This is not only unsatisfying for the patient and the attending physician but also a major problem in the context of clinical trials that aim to establish new therapeutic agents. In clinical trials it is critically important to foresee as precisely as possible the course of the disease. The overall aim of the subproject is to identify a panel of CSF biomarkers to further improve specificity of diagnosis ("disease markers"), to measure disease activity and to predict AD progression ("stage and progression markers").

Electroconvulsive therapy (ECT) induces a cerebral seizure by electrical stimulation under general anesthesia and muscle relaxation, is regarded as a highly efficient (for specific and severe psychiatric disorders) and extremely safe modern treatment option. Alzheimer´s disease (AD) is a neurodegenerative disorder which is characterized by progressive cognitive deterioration accompanied by declining activities of daily living, by a variety of behavioral disturbances and by neuropsychiatric symptoms. The clinical progression of disease can be delayed by pharmaceutical therapies like acetylcholinesterase inhibition (e.g. rivastigmine) for 6 to 12 months at most. Along with the well-known biomarkers of AD (Aß- and tau-proteins) a lower brain-derived neurotrophic factor (BDNF) level is since recently being considered as a negative predictor for the further disease course. In animal experimental studies it was possible to arrest the disease progression with the aid of neurotrophic substances. Many single studies, but also a number of meta-analyses show primary gray matter atrophy in hippocampal, parahippocampal and medial temporal brain regions. Strikingly, ECT yields exact opposite effects to those caused by AD: an ECT series leads to an increase of serum BDNF-levels in patients. Parallel to this observation evidence exists for gray matter volume gain after an ECT series, especially for the hippocampus. There is sufficient clinical experience regarding the use of ECT in AD-patients, mainly on the basis of following indications: a) affective disorders and b) behavioral disturbances. A positive effect of ECT on the symptoms of agitation and aggression was assessed in AD patients alongside with a very good tolerability. To investigate the potential salutary effects of ECT on AD the investigators designed a pilot study with the following concept: Patients with a confirmed AD diagnosis and preexisting stable antidementia medication over at least 6 months will receive a modified maintenance ECT over a total of 27 weeks. In the proposed pilot study, the investigators hypothesize that cognitive functioning of AD patients will improve significantly and independently from affective symptoms, when initial and final examinations are compared. The affirmation of the hypothesis would provide not only further insight into the mechanism of action of ECT but also a very important reference point for the development of new treatment options for a so-far incurable disease.

Gamma brain activity is crucial for cognitive function and intra-brain communication. Gamma frequency stimulation via transcranial alternating current stimulation(tACS) might alleviate memory deficits on both animal models of Alzheimer's disease (AD) and clinical trial. The study aims to assess the safety and efficacy of tACS on cognitive function and modulating neurophysiology in patients with AD.

A randomized controlled clinical study will be conducted in Xuanwu Hospital of Capital Medical University. This study initially explore the effect of selective vagus nerve(C fiber) stimulation on mild-to-moderate AD patients, in order to regulate the activity of the locus coeruleus-norepinephrine network, and to observe the improvement of cognitive function and memory function. We aim to evaluate the efficacy and safety of minimally invasive selective vagus nerve stimulation in the treatment of mild-to-moderate AD patients, to clarify the effective mechanism, and to provide an effective clinical treatment strategy.