View clinical trials related to Alzheimer Disease.
Filter by:This is a randomized controlled trial over 5 years, using Stage II of the NIH-defined stage model for behavioral intervention development. We will evaluate the efficacy of the sleep intervention program (Care2Sleep) on sleep, health status measures, and quality of life (for dyads), and inflammation (for caregivers only). Eligible participants will be randomly assigned to in-person Care2Sleep, telehealth Care2Sleep, or to an in-person education control group. The Care2Sleep programs and the control education program will consist of five sessions. The intervention and control programs will begin after baseline assessment and randomization. Posttreatment assessments will be performed immediately after the last session and at 6-month follow-up.
The aim of our study is to verify the validity and reliability of the Turkish version of B-GYA.
Despite well-documented disparities in Alzheimer's disease and related dementia (AD) prevalence, incidence, treatment, and mortality, individuals from disadvantaged backgrounds (e.g. racial/ethnic minorities and socioeconomically disadvantaged persons) are under-represented in clinical research. Existing research recruitment approaches are rarely designed to accommodate the priorities, concerns, and constraints relevant to participants from diverse backgrounds. To address these gaps, the investigators developed a research recruitment and engagement model, the Participant Oriented Research Engagement Model that centers and prioritizes relational aspects of research engagement, research participant needs, and systematically address socioeconomic determinants (i.e. unmet needs) that may limit accessibility of research. The investigators propose to test the effectiveness of the Brain Health Community (BHC) Registry recruitment and engagement intervention, as compared to standard research recruitment strategies in modifying enrollment rates, participant satisfaction, and engagement. The investigators hypothesize that the BHC Registry will yield greater enrollment rates, higher satisfaction, and better ratings of relational engagement.
Alzheimers disease and cerebral small vessel disease have a considerably overlap in patients and have common risk factors. The diseases are difficult to separate in individual patients and we hypothesize that a reduced cerebral vascular reserve may be a measurement of small vessel disease independent of Alzheimers disease. Patients with presumed Alzheimers disease (n=20), cerebral small vessel disease (n=20) and healthy age-matched subjects (n=15) are examined with quantitative [15O]H2O positron emission tomography (PET) for measurements of brain perfusion before and after diamox infusion that dilates cerebral vessels. Additional [15O]H2O PET scans of the heart allows for a non-invasive input function so the cerebral vascular reserve can be measured quantitatively.
The research plan to enroll 15 simple snoring patients (apnea/hypopnea <5, control group), 30 severe OSA patients (apnea/hypopnea >30, treatment group), and 15 mild cognitive impairment patients (comparative group). All patients complete Mini-Mental State Examination, peripheral blood sample for plasma Aβ42, Aβ40, Aβ42/Aβ40, Tau, NfL; amyloid deposit in18F-florbetapir PET; and Taiwan smell identification test. Thirty severe OSA patients (AHI>30, treatment group) receive comprehensive upper airway surgery with/without bariatric surgery and repeat postoperative assessment in polysomnography and aforementioned examinations 1 year later.
This multicentre study, with a randomised controlled repeated measures experimental design, will be conducted in several Portuguese institutions, which provide care and supportive services for older adults diagnosed with mild or moderate Alzheimer's disease (AD), with an aim to assess the effect of individual cognitive stimulation (CS) on memory and executive functioning. Participants in the intervention group will attend 24 individual CS sessions, twice weekly for 12 weeks. Participants in the control group will complete their usual routines without any activity restrictions.
This study focuses on the population of Alzheimer disease (AD). Based on Aβ(A)-Tau(T)-Vascular(V)-Neurodegeneration(N) (ATV(N))-AD evaluation system of NIA-AA Association, it can accurately diagnose and predict early AD. Positron emission tomography (PET) - magnetic resonance (MR) was used to perform Aβ、Tau molecular imaging, representing A and T in the system respectively; The quantitative detection of glucose metabolism in the brain by fluorodeoxyglucose PET (FDG-PET) can reflect the degree of neuronal damage (N); In addition, PET-MR can be used to synchronously evaluate the patients' vascular comorbidity (SVD load score) (V). Through the preliminary construction of this system, to clarify the central deposition pattern of Aβ、tau protein and the characteristics of FDG metabolism; To clarify the correlation between PET-MR imaging indexes and the progression of early cognitive impairment in AD, and to clarify the role of degeneration and vascular factors in the occurrence and development of AD; To provide a preliminary basis for the subsequent establishment of a molecular imaging model for the prognosis of early AD.
Alzheimer's disease (AD) is the main cause of dementia. At present, AD is incurable. Memantine is recommended for the treatment of moderate and severe AD patients. Sodium oligomannate (GV-971) is a marine-derived oligosaccharide. It is proposed that it can reconstitute the gut microbiota, and inhibit neuroinflammation in the brain as observed in animal models. It reduces Aβ deposition in the brain of Aβ-transgenic mice. The reduction in both Aβ deposition and neuroinflammation may synergistically contribute to the improvement of cognitive impairment and delay the progress of the disease. China Food and Drug Administration（CFDA）approved it for the treatment of mild to moderate AD in 2019. Due to the different mechanism of memantine and GV-971, theoretically, they may synergistically improve cognitive function and delay disease progression. However, there is a lack of data on their effectiveness and safety. Therefore, the purpose of this study is to compare the efficacy and safety of memantine and GV-971 monotherapy and combination therapy in patients with moderate to severe AD, which is of great significance for guiding the treatment of moderate and severe AD.
Alzheimer's disease (AD) has gradually become one of the major global public health issues due to its prevalence, which increases with age and life expectancy, and the economic cost of caring for patients whose cognitive decline progressively leads to loss of functional autonomy. The diagnosis of AD is based on a multidisciplinary approach, involving, among other things, evaluation of the medical history together with clinical symptoms and signs, neuropsychological tests and neuroimaging. The quantification of cerebrospinal fluid (CSF) core biomarkers (amyloid beta peptides [Ab1-40 and Ab1-42], total tau [t-tau] and its phosphorylated form on threonine 181 [p-tau(181)]) has progressively proven utility for the diagnosis of AD and its prodromal forms. CSF biomarkers are now included in international guidelines for the diagnosis of AD in research settings and clinical practice and the Alzheimer's Association appropriate use criteria for the use of lumbar puncture and CSF testing in the diagnosis of AD have been published. Such biochemical diagnostics are currently implemented in many specialized centers around the world. Recent progress in the biological diagnosis of AD is considerable, with the possibility, thanks to ultra-sensitive tests realized notably with the SIMOA technology, of having Ab1-40, Ab1-42, t-tau and p-tau(181) also detectable in the blood using commercial kits. The performance for AD detection has been evaluated by many groups including on retrospective samples. It is now essential to evaluate the interest of blood-based biomarkers of AD, prospectively and in real life condition to confront them with pre-analytical and analytical variabilities. It is also important to position them in relation to CSF analysis and AD management, from risk assessment, diagnosis, to therapeutic strategies.
This proof-of-concept study will assess safety, tolerance, and efficacy of NanoLithium® NP03 in patients with mild-to-severe Alzheimer's Disease (AD).