Active clinical trials for "Alzheimer Disease"

To Determine the the Efficacy and Safety of [18F]NAV4694 PET for Detection of Cerebral β-Amyloid When Compared With Postmortem Histopathology

In its long preclinical course, AD shows a spreading pattern of specific pathology in a uniform sequence of predictable steps including brainstem nuclei in early stages. Many of these nuclei which are early involved in AD take equally part in the afferences of the Xth cranial nerve, the Vagus nerve. A method for the functional assessment of Vagus-related nuclei in the lower brainstem is the technique of somatosensory evoked potentials of the Vagus nerve (VSEP). This method targets the accessibility of early functional changes by evoked potentials on one hand and the early affection of specific brainstem nuclei comprising Vagus afferences in the course of AD on the other hand. The method of VSEP takes advantage of the transcutaneous stimulation of the auricular branch of the Vagus nerve (ABVN) which is presumed to be the only sensory part of this nerve innervating parts of the outer meatus acoustics at the tragus. This cutaneous branch was shown to gain access to Vagus afferences via brainstem regions which are affected in the course of AD. VSEP latencies in AD were shown to be significantly longer as compared to healthy controls. Yet, if VSEP really are suited for the early detection of AD is still not known. Functional near-infrared spectroscopy (fNIRS) measures changes in cerebral oxygenation by means of near-infrared light using wavelengths of 650-850 nm. The principle of fNIRS is based on the principle that regional neuronal activation of the brain leads to an increase in metabolism and oxygenation of brain tissue in that region which is accompanied by an elevated regional cerebral blood flow. In AD, there is a growing body of literature reporting deviant fNIRS activation patterns for a variety of tasks. For example, it was shown that the fNIRS activation pattern in frontal and parietal cortex areas in subjects with AD performing the line orientation paradigm is clearly different from healthy controls. Yet, if fNIRS is suited as a means of early detection of AD is not known. Therefore we aimed at testing the predictive value of VSEP and fNIRS in the early detection of AD. The hypothesis to be tested within this study states that subjects developing AD or MCI within an observation period of 6 years depict longer VSEP latencies, a different fNIRS oxygenation pattern and a lower performance in neuropsychologic rating below the level of dementia at baseline than those who remain cognitively stable.

Dementia is a serious health problem showing an increasing prevalence rate with increasing age. In Norway, about 80% of nursing home patients have dementia. The mean age of nursing home residents in Norway is around 84 years. Disruptive and agitated behaviour affect 30-50% of all individuals with dementia at some point in the course of the illness. In addition, they have a combination of physical and psychological diseases which necessitates a close collaboration between different specialities in medicine and Old Age psychiatry. In collaboration with the communalities, our Old Age psychiatry services want to provide a new approach to this challenge and validate it on patient and personnel level.

Patients who were vaccinated with AFFITOPE AD01 during AFFiRiS001 will undergo a long-term follow-up period to get more information regarding the safety profile of AFFITOPE AD01.

Falls in Alzheimer's Disease (AD) are common and lead to fractures, acute hospitalizations and increased rate of institutionalization. Poor balance and gait abnormalities, commonly associated with AD, are risk factors. Improving balance and gait abnormalities is critical in preventing these falls. Walking is the most commonly recommended home-based exercise program for elderly by primary care providers. However, it is difficult to engage patients with AD in long term exercise programs. Barriers include lack of motivation, poor engagement, and external factors such as the cost of physical therapy (PT). The use of readily available technology might bridge this gap by providing high level of engagement via use of multimedia at an affordable price. Wii-Fit is a Nintendo gaming console used for aerobics, strength training, and balance activities. It is a TV based self-directed activity where virtual trainers talk the user through the activity while tracking progress. Some skilled nursing facilities have started using the Wii-Fit as an adjunct to PT and note improvement in balance along with social benefits, but no systematic studies are done to generalize the findings. This study will compare changes in balance and daily living activities between a group receiving Wii-Fit training and another receiving a walking exercise program.

Measurement of metabotropic glutamate receptor type 5 (mGluR5) binding capacity in the brain, may be a valuable tool in the early detection, understanding, or evaluation of Parkinson disease (PD), Huntington disease (HD), Fragile X syndrome (FXS), Autism Spectrum Disorder(ASD), Alzheimer's Disease(AD), and subjects with mild cognitive impairment (MCI). The goal of this study is to assess [18F]F-PEB positron emission tomography (PET) imaging as a tool to detect mGluR5 density in the brain of PD, HD, FXS ASD, AD, and MCI research participants and similarly aged healthy subjects.

The objective of this study is to investigate how quickly and to what extent the 14-Carbon labeled SAM-531 is absorbed into the bloodstream, converted and eliminated from the body after oral administration in healthy male subjects. As 14-Carbon labeled SAM-531 is radioactive, this enables the compound to be traced in blood, urine and feces.

The underlying goal of this study is to assess 123-I IBVM SPECT imaging as a tool to assess cholinergic transporter binding in the brain of AD and PD research participants and age- and gender-matched healthy subjects.

The VIVA study is focused on Alzheimer's disease patients with a low vision due to a bilateral cataract. The aim is to study cataract surgery results on patients' autonomy, behaviour, and mood. In fact those dement elderly patients suffer from a progressive loss of superior functions, with loss of autonomy, behaviour and mood degradation, associated with physical disabilities. The work hypothesis is that a loss of sensorial functions, particularly visual, is an aggravating factor of NEURO-cognitive troubles and absence of communication with outside circle. The protocol consists in investigating superior functions, autonomy, and behaviour troubles of the participating patients, with the help of a series of neuropsychological tests used one month before and three months after cataract operation on the eye with the worst vision. Independently of the study, patients must have given an informed consent to cataract surgery. Their participation lasts 4 months+/- 1 month. The aim of the study is to evaluate whether the cataract surgery improves patients' behaviour, autonomy and mood and possibly to show evidence onf drawbacks in of such a practice.The main objective targets to cataract surgery benefice on patients suffering from both Alzheimer's disease and impeding cataract, aiming to improve behaviour troubles. The specific objective is to measure this benefice in correlation with visual acuity improvement.

To validate a new Alzheimer's Disease scale against other rating tools in subjects with dementia of Alzheimer's type, treated with memantine.