Tauopathies

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.

The SNIFF 3-Week Aptar Device study will involve using a device to administer insulin or placebo through each participant's nose or intra-nasally. Insulin is a hormone that is produced in the body. It works by lowering levels of glucose (sugar) in the blood. This study is measuring how much insulin the device delivers. In addition, this study will look at the effects of insulin or placebo administered intra-nasally using an intranasal delivery device on memory, blood, and cerebrospinal fluid (CSF).

There are currently 6.7 million Americans living with dementia and, without significant breakthroughs, this figure will double to 12.7 million by 2050. There are about 46,000 long-term care (LTC) facilities in the U.S. More than half of LTC residents have some form of dementia (Alzheimer's Association, 2018). Responsive behaviors and dysfunction of the dementia care triad-i.e., the PLWD, professional Care Partner (CP), and Family Member (FM)-are inexorably linked. The emergence of responsive behaviors can lead to disruption of the triad's function. Thus, it is imperative to maintain positive relationships and a high quality of life (QoL) within the triad to reduce BPSD. Cognitive Stimulation Therapy (CST) has demonstrated improvements in QoL and relationships for PLWD. CST is a psychosocial intervention that promotes communication and engagement in PLWD via a structured program of meaningful and enjoyable theme. While clinical trials have shown improvement in cognition and QoL, the potential large-scale impact of CST has been hampered by low adherence, with less than 40% completing trials. One likely reason for the low adherence to CST is the reliance on generic and non-digital tools (e.g., paper-based agendas, tools, DVDs, and board games) in facilitating the intervention. That is, even though CST aims to be personalized, the specific interventions used in the field tend to be generic and not tailored to each PLWD's specific interests. The use of digital technology to implement CST would offer considerable advantages to expand and personalize the range of stimulation content and provide a means for monitoring responses, optimizing protocols, and promoting adherence.
The proposed Phase II study will involve the continued development and evaluation of a multi-faceted software platform called "Building Relationships using Artificial Intelligence and Nostalgia" or BRAIN. The BRAIN Platform will be the first-ever Artificial Intelligence (AI) powered CST digital therapy platform for PLWD. The platform, which has been shown to be effective in an initial Phase I clinical trial, has three main goals: to improve the quality of life of PLWD, to reduce BPSD in PLWD, and to foster positive relationships between members of the care triad. The proposed Phase II project has the following Specific Aims: 1. Create an improved Beta version of the BRAIN Platform's eight components: (1) the Admin Management Dashboard, (2) the Annotation Dashboard, (3) the Log Viewer, (4) the Content Management System (CMS), (5) the Private CMS, (6) the Control App, (7) the Home App, and (8) the Training Dashboard. 2. Fine-tune the different classes of AI algorithms-i.e., behavioral analytics, personalized content recommendation, and personalized program generation-in the BRAIN app such that they can (a) recognize and track 12 distinct behaviors and indicators of PLWD, (b) use these behavioral traits as a basis for automatically rating the relative success of each activity, and (c) automatically recommend personalized activities that are likely to be successful for individual PLWD. 3. Conduct a Cluster Randomized Trial (CRT) of the BRAIN App to examine the app's impact on engagement/affect, quality of life, and responsive behaviors. 4. Examine satisfaction and ease of use of the app for PLWD, LTC staff, and FMs.