Active clinical trials for "Alzheimer Disease"

In recent years, reduced levels of brain-derived neurotrophic factor (BDNF) have been found in dementia patients. BDNF reduces amyloid precursor protein (APP) fragments via the Trk signaling pathway, and the expression of transgenic BDNF in animal models of Alzheimer's Disease（AD）shows a protective effect on neurodegeneration. A lot of researches have proved that brain hydrolysate injection can improve the level of BDNF in the brain. And oral brain peptide dietary supplements, which is also derived from brain proteolytic products, may also adjust and improve neuron metabolism, promote the formation of synapses, induce the differentiation of neurons, and protect nerve cells from ischemia and neurotoxin damage, reduce the risk of loss of cognitive function in the aging process. However, there are still no studies on dietary supplements derived from brain protein hydrolysates in China. Therefore, the investigators designed a randomized controlled double-blind study program to preliminarily evaluate the efficacy, safety and possible mechanism of brain polypeptide solution in improving the cognition of mild alzheimer's disease patients. The research is a prospective, multicenter, cohort study. 200 patients with mild alzheimer's disease will be selected and randomly divided into experimental group and control group according to the numerical random table. The experimental group will take the brain polypeptide solution 60ml per day and the control group was treated with the same package of placebo 60ml per day. The treatment regimen remained unchanged during the observation period. During the study period, safety index including blood and urine routine, liver and kidney function, coagulation index and clinical effect index about neuropsychological scales will be recorded.

This is a second extension of EM 1000-1 wherein mild/moderate AD subjects who participated in the original study have completed participation in a first extension of 4-months. Most of the eight subjects in the original EM 1000-1 and first extension agreed to participate in this second extension study. The time between completion of the first extension and the second extension is 4 months. This second extension study;'s primary objective is to determine the long-term safety and efficacy of 12 months of daily treatment on performance of these AD subjects in the same comprehensive array of cognitive tasks as they performed in the initial 2-month study and 4-month first extension.Secondary objectives include analysis of blood for AD markers and evaluation of safety throughout the treatment period. Upon completion of this 12-month extension, the period between initial treatment and final treatment will be 2-3 years.

The study will explore the impact of photobiomodulation (PBM), pulsating at frequencies of red (660nm) and near-infrared (810nm)(NIR), concurrent with a ketogenic dietary protocol (serum ketones @ .5 - 2.0 mmol/L) to mediate vascular features of diabetic retinopathy (DR), diabetic macular edema (DME), age-related macular degeneration (AMD), mid-peripheral drusens, visual acuity and retinal disorders. Red and near-infrared light via light-emitting diode (LED) treatment promotes retinal healing and improves visual acuity by augmenting cellular energy metabolism, enhancing mitochondrial function, increasing cytochrome C oxidase activity, stimulating antioxidant protective pathways and promoting cell survival. LED therapy directly benefits neurons in the retina, the lateral geniculate nucleus and the visual cortex; likewise, a ketogenic dietary protocol shows metabolic and neuro-modulatory benefits within the CNS, most notably as treatment for refractory epilepsy. Photobiomodulation has been approved as a non-significant risk (NSR) modality for the treatment of eye disorders.

Background: Deep brain stimulation (DBS) is used to modulate the activity of dysfunctional brain circuits. The safety and preliminary efficacy of nucleus basalis of Meynert (NBM)-DBS in Alzheimer's disease (AD) is proved in a recent phase 1 clinical trial, yet, the mechanism still unknown. Objective: 1. To compare the brain structure and functional circuits between a) AD patients with optimal drug treatment (ODT) plus NBM-DBS, b) AD with ODT and c) normal age-and sex-matched control. 2. To evaluate the clinical effectiveness of NBM-DBS in AD patients 60-75 year-old. 3. To evaluate the abnormal functional circuitry response to acute and chronic NBM-DBS in AD. Methods: A total of 30 subjects (10 subjects of AD with ODT plus NBM-DBS; 10 subjects of AD with ODT and 10 subjects of normal age-and sex-matched subjects) will be enrolled in this prospective, with normal control, Phase II study. Study tools will include clinical rating batteries, structure and functional imaging of magnetic resonance (MR) and positron emission tomography (PET), and electroencephalogram (EEG). Expected Results: NBM-DBS will be proved to be an safe and effective treatment modality in AD patients 60-75 year-old. Through multi-modal images and EEG analysis, the possible action mechanisms of NBM-DBS on memory circuit will be discussed. The study results may shed a light on this helpless neurodegenerative disease of dementia.

The purpose of this study is to investigate the influence of acupuncture on heart rate variability, skin conductance (sweating), and rated behavioral expression of agitation, irritability, and anxiety and mood in qualifying adults with a diagnosis of cognitively unimpaired, or probable Alzheimer's Disease, Frontotemporal Dementia or Dementia with Lewy Bodies. Study subjects will all receive one real acupuncture treatment; mood scales will be assessed before and after. Massachusetts General Hospital is paying for this research to be done.

This study will evaluate the safety, tolerability, and pharmacokinetics of MK-4334 administered once daily (QD) in participants with Alzheimer's clinical syndrome receiving a stable, daily dose of donepezil 10 mg, taken orally (PO). This includes participants with symptoms of mild cognitive impairment (MCI) or mild to moderate Alzheimer's disease (AD). It is hypothesized that the true geometric mean minimum plasma concentration at 24 hours (C24) is at least 60 nM at steady state in the presence of steady-state donepezil 10 mg.

Fast Field-Cycling MRI (FFC MRI) is a new scanning technology being developed at the University of Aberdeen. Previous pilot studies by the team on osteoarthritis, breast cancer, musculoskeletal cancer, liver fibrosis, thrombosis and muscle damage have demonstrated that FFC MRI provides useful information for clinical diagnostics in a variety of pathologies. The aim of this study is to ascertain if brain imaging with FFC MRI yields any useful information in the diagnosis and evaluation of Alzheimer's disease.

This is a single dose, dose-escalation study to assess the safety, tolerability, pharmacokinetics and pharmacodynamics of TB006, a monoclonal antibody that will be studied as a disease modifying treatment for Alzheimer's disease.

The main objective of the study is to analyze the psychometric properties of the "antillanisée" version of the Mini Mental State Examination (MMSEa). The methodology used will permit to explore the feasibility, acceptability, validity and reliability of the tool. The psychometric validation of a version adapted transculturally will increase the value of the results obtained with this test and will make it possible to refine the screening of existing cognitive disorders for elderly subjects with Alzheiner's disease or related disorders.

Approximately one million of Spaniards suffer from AlzhEimer´s Disease (AD) and this figure is expected to triple by 20150. The approved treatments modulate neurotransmission in general and are not specific or anatomically directed. In AD there is a dysfunction in cognitive and memory circuits. It has been shown that the deep brain stimulation (DBS) can specially modulate circuits in such a way that is modulable, and this approach is safe. The safety of this treatment and its biological effects are convincing enough to require further study of possible therapeutic effects of DBS in AD. The objectives are: To evaluate the security of DBS in AD (main objective). To study the influence of DBS in the progress of AD, to compare the effects of DBS on the brain metabolism neural connectivity and hubs using MEG, and to compare the effects between two different groups: fornix and Basal nucleus of Meynert (BNM). To achieve this, a prospective, double-blind comparison study between groups will be conducted, to evaluate the effects of DBS in 6 patients: group I (fornix) and group II ( BNM).