View clinical trials related to Cognitive Dysfunction.
Filter by:This project aims to understand the feasibility, acceptability and real-world evidence of a novel UK-based remote brain health clinic for patients with mild cognitive impairment (MCI). A timely and accurate diagnosis of dementia is a priority in the UK and MCI is indicative of future risk of cognitive decline. An accurate etiological diagnosis of MCI (MCI-subtyping - distinguishing those who are likely to go on to develop dementia and those who are not) is vital for treatment planning. Whilst the assessment of molecular biological markers (biomarkers) for etiological diagnosis of MCI and Alzheimer's disease (AD) is increasingly recommended and employed internationally, the uptake is low in UK memory clinics. The Brain Health Clinic (BHC) has been specifically designed as a state-of-the-art diagnostic centre for those with MCI. Procedures will include a range of clinical and biomarker assessments, with molecular biomarkers based on lumbar puncture and cerebrospinal fluid (CSF) analysis. Additionally, the clinic will employ remote neuropsychiatric assessments using digital and telephonic methods. This allows for regular contact, whilst adhering to changes in clinical practice and national guidance due to the COVID-19 pandemic. Our overarching objectives are to first establish the acceptability and feasibility of the remote Brain Health Clinic and its novel clinical and biomarker assessment programme. Then secondly establish the impact of care under the Brain Health Clinic on i) care management decisions (e.g. follow-up and treatment planning); ii) time to etiological diagnosis of MCI (MCI-subtyping); and iii) time to diagnosis of dementia and severity of dementia at the time of diagnosis.
The goal of this observational study is to determine whether the early adoption of blood-based biomarkers for Alzheimer's disease is associated with an impact on etiological diagnosis, patient's management, emotional impact, patient's preferences and cost-effectiveness in patients presenting with cognitive complaints in a Cognitive Disorders Unit from a public hospital. The main questions it aims to answer are: 1. Does the early adoption of blood-based biomarkers in clinical practice enable an earlier etiologic diagnosis with high confidence compared to the late adoption of blood-based biomarkers in the patients with cognitive complaints that are admitted in a Cognitive Disorders Unit? 2. Is the early adoption of blood-based biomarkers in clinical practice associated with changes in clinical management compared to their late adoption? 3. Is the early adoption of blood-based biomarkers in clinical practice associated with a lower emotional impact in the patients and their study partners/caregivers compared to their late adoption? 4. Are blood-based biomarkers better tolerated than other tests and preferred by patients for the diagnostic work-up? 5. Does blood-based biomarkers have an impact in the cost of the diagnostic workup and clinical management of the patients that are admitted in a Cognitive Disorders Unit? Participants will be asked to: - Perform a blood extraction for blood-based biomarkers analysis at the beginning of the study. - Complete specific scales in each visit. Researchers will compare the group in which blood biomarkers are delivered at 3 months with the group in which they are delivered at 9 months to assess whether early adoption of blood-based biomarkers is associated with an impact on etiological diagnosis, patient's management, emotional impact, patient's preferences and cost-effectiveness in a specialized memory unit.
This is an open-label extension for a multicenter, randomized, double-blind, sham-controlled, adaptive design pivotal study. Participants who complete the Hope Study (CA-0011) will be eligible to consent for screening to enroll in the OLE Hope Study (CA-0015). All participants will be treated with an Active Sensory Stimulation System (GS120) for 60 minutes daily for up to 12 months. There will be no Sham treatment group or randomization involved in this study.
In the ADDITION-MCI project, patients with a diagnosis of mild cognitive impairment probably caused by Alzheimer's disease will receive plasma exchange.
A retrospective crosssectional observational study of the effects of oncological treatment and frequent general anesthesia on neuropsychological development, psychosocial functioning (in terms of anxiety, depression, peer relations, perceived cognitive functioning and potential trauma) and health related quality of life in children and young adults who were treated or screened for retinoblastoma.
In 2018, approximately 50 million people received a diagnosis of dementia, which is projected to triple by 2050. To mitigate the increase in dementia, it is crucial to prevent cognitive decline in at risk groups, such as older adults with mild cognitive impairment (MCI). Recent research has demonstrated that combining physical (PA) and cognitive activities yields positive effects on the cognitive health of older adults. However, it is essential to explore effective ways of implementing this approach for MCI patients as it may help prevent dementia. An intergenerational program offers a novel and innovative method to achieve this goal by involving both older and younger generations in a single (exercise) program aimed at promoting the health behavior of both groups. Engaging children in an intergenerational, cognitively enriched exercise program for MCI patients primarily benefits the older adults while also providing advantages for the adult children. Therefore, this intergenerational project serves as a valuable and motivating force to enhance the physical, cognitive, and psychosocial health of MCI patients, with a secondary aim of positively impacting the adult children. Phase 1 of this project (=current study) involves developing the intergenerational, cognitively enriched exercise program. This will be accomplished using a theoretical framework in combination with a co-creation approach, which actively involves MCI patients in the intervention development. Ten thinkaloud interviews (lasting approximately 2 hours) will be conducted with MCI patients and one of their adult children. The insights gained from these interviews will be used to adapt an existing exercise intervention for MCI patients according to their specific needs. Prior to the interview, participants will also be asked to complete a short questionnaire that collects basic demographic information.
The purpose of this research is to further investigate the potential of brain stiffness as a novel biomarker for Alzheimer's disease.
Years before someone experiences the symptoms of Alzheimer's disease, a compound called amyloid beta (Aβ) builds up in the brain. Excess Aβ - directly or indirectly - causes many of the symptoms of Alzheimer's dementia. However, recent studies of the FDA-approved drugs lecanemab (Leqembi®) and aducanumab (Aduhelm®) indicate that removing Aβ from the brain doesn't stop Alzheimer's. Clearly, there are other problems that need to be fixed. The investigators are interested in the cause of Aβ buildup. Non-neuronal support cells, called glia, keep neurons healthy by regulating water and nutrient levels for the neurons. They also help clear Aβ away from neurons. Maybe Aβ builds up when glia are unhealthy. Glia are very hard to study in the brain. Luckily, the light-sensing part of the eye - the retina - is an extension of the brain. The investigators study glia in the retina to learn about glia in the brain. To study retinal glia, the investigators take pictures of the retina with optical coherence tomography (OCT). OCT is safe, painless, and is used in many eye clinics to look at the structure of the retina. When the investigators take OCT pictures under a bright light, and compare those to OCT pictures collected in darkness, it gives the investigators information about glial function. In a study published in 2020 ("Optical coherence tomography reveals light-dependent retinal responses in Alzheimer's disease") the investigators showed that this functional OCT measurement was different in people with Alzheimer's dementia, compared to age-matched healthy adults. The goal of this observational study is to compare people at a pre-dementia stage of Alzheimer's disease to people who do not have any signs at all of Alzheimer's disease. By "pre-dementia stage", the investigators mean people who are either cognitively normal, or have mild cognitive impairment, but have had a medical test that shows the chemical beginnings of Alzheimer's disease. Members of the comparison group will also be cognitively normal, or have mild cognitive impairment, but had a medical test that shows utterly no signs of Alzheimer's disease. The main question this study, is whether functional OCT can tell these two groups apart. If so, that would: - Help build the case for glial health being important in the earliest stages of Alzheimer's, which in turn could lead to new treatment strategies, and - Suggest that functional OCT might be used as an early (pre-dementia) screening test for Alzheimer's disease Participants will: - undergo a brief eye exam (the investigators will not dilate pupils for this study) - undergo a paper-and-pencil cognitive test (to help verify "normal" or "mild cognitive impairment" status) - take brief one-page survey to collect demographic information (like age) - permit limited access to pre-existing medical or research records (to verify the presence/absence of the chemical beginnings of Alzheimer's disease) - take several OCT pictures of both eyes, in light and after 2 minutes of darkness (several rounds of images are taken) The expectation is that all study procedures will fit within 2 hours of one day.
The goal of this observational trial is to leverage the electronic Self-Administered Gerocognitive Examination (eSAGE), a variety of metadata (a set of data that describes and gives information about other data) collected during eSAGE testing, electronic health records (EHR) information, and advanced machine learning (ML) techniques to develop a new tool that can aid in early-stage prediction of individuals with cognitive impairments.
This study aims to investigate the effect of computerized vestibular function assessment and interactive training system, combined with cognitive/motor dual-task for the elderly with dizziness. The investigators will compare the movement abilities among older adults with different cognitive level, and further establish an assessment module that can evaluate participants' dual-task performance in both vestibular and cognitive tasks. Finally, leveraging the advantages of sensor detection technology and computerized feedback, an appropriate dual-task rehabilitation approach for vestibular function and cognition will be developed.