Active clinical trials for "Cognitive Dysfunction"

The current study aims to validate several novel cognitive tasks expected to be sensitive to brain impairment in specific anatomic regions affected in preclinical Alzheimer's disease(pAD). The tasks are validated in 60 cognitively and clinically normal participants ages 60 - 85, inclusive, against reasonably well-established biomarkers of Alzheimer's disease, including 1) simultaneous positron emission tomography (PET) [18F]Flutemetamol amyloid and CT imaging and 2) to the extent data is available from other studies, participants' brain MRI and cerebral spinal fluid (CSF) amyloid and tau.

Phase II, open-label clinical trial with a medicinal product. A total of 30 subjects will be included in the study. All participants will receive a single intravenous dose of 300 MBq of FBB. A 20-minute PET image should be acquired starting at approximately 90 minutes after intravenous injection of FBB. The present proposal aims are: to assess safety of a single dose of FBB followed by PET scan in individuals with subjective cognitive decline (SCD), to determine the number of SCD subjects with positive visual FBB-PET scan, to determine the number of SCD subjects with positive standardized uptake value ratios (SUVRs) of FBB-PET scan and to explore the cortical pattern of amyloid deposition in SCD subjects.

This is a multicenter, multicultural, randomized control trial. Participants will be recruited from 10 centers located in Italy, Germany, Austria, Spain, United Kingdom, Belgium, Sweden, Japan, South Korea and Australia. The main objective of the study is to examine the efficacy of a sensor-based platform (my-AHA platform) to assess frailty risks and to deliver tailored interventions in order to prevent in elderly subjects conversion from a pre-frail status to a frailty status.

Postoperative cognitive dysfunction (POCD) occurs mainly in aged patients. POCD may increase the mortality and morbidity. However, the mechanism of POCD is not clear yet and no effective therapy method was proved. According to our previous study, the central cholinergic system impaired by the anesthesia and surgery play a very important role in the POCD and donepezil an acetylcholinesterase inhibitor can prevent the POCD after isoflurane anesthesia in aged mice. Donepezil is a commercial medicine used for the Alzheimer Disease, which is tolerable and has minimal adverse events. In present study a multi-center randomized case control study was conducted and we hypothesized that donepezil attenuate the POCD.

Post-operative cognitive dysfunction is defined as a decrease in cognitive functions which develop following surgery and anesthesia administration that can last up to weeks or even months after surgery. In this study, our main objective was to investigate the effect of preoperative hospitalisation period on early post operative cognitive dysfunction development and its risk factors in patients who underwent total hip replacement surgery for hip fractures under regional anesthesia.

This observational cohort study in healthy volunteers establishes normative data for the German version of the Montreal Cognitive Assessment (MoCA) and investigates the possible impacts of demographics on the MoCA total score.

Patients with failed kidneys need Renal Replacement Therapy (RRT) to remove fluid and toxins from the body. The 3 types of RRT are kidney transplant or removal of waste by dialysis, either via the blood (haemodialysis) or via the stomach area (peritoneal dialysis). 27,000 patients currently receive dialysis in the UK and some endure reduced quality-of-life, depression, and thinking and memory difficulties. Some of these symptoms reflect undiagnosed dementia. Indeed up to 7/10 dialysis patients suffer moderate to severe brain impairment or dementia - much more frequently than in the general population. This study will assess brain function just before starting dialysis/transplant and at 3 and 12 months afterwards with face to face assessments and with brain scans in some patients. Changes in brain function will be compared between people treated with the different forms of dialysis and transplant. The Investigators hope to evaluate whether these tests are acceptable to patients, whether affected sub-groups with cognitive impairment can be identified early, and if certain dialysis methods are better for patients with cognitive impairment/dementia, so that a larger study to try to improve brain function after RRT can be developed.

Alzheimer's disease is a debilitating condition for patients and their caregivers marked by hallmark cognitive symptoms (e.g., memory loss) as well as an impact on quality of life. Researchers and clinicians are learning that a specific type of memory, called prospective memory, may be particularly affected in mild Alzheimer's disease. Prospective memory is memory for future intentions, goals, and chores, and the loss of the neurocognitive processes supporting prospective memory may reduce independent functioning (e.g., medication adherence). The current study investigates a technology-based intervention to assist participants with their daily prospective memory tasks. Participants with mild cognitive impairment and mild Alzheimer's disease will be trained to use a smartphone for four weeks. Smartphone acceptability, usability, and overall user experience will be measured. Furthermore, participants will be tested on completion of daily prospective memory tasks. In one group, participants will train to use the smartphone personal assistant reminder system, which reminds participants of their goals, tasks, and chores at the appropriate time or location. In a comparison group, participants will also carry a smartphone but will train to use a memory strategy in which they verbalize external cues to remind them to perform their goals, tasks, and chores. The goal of this research is to inform whether smartphone technology or a memory strategy can be used to reduce memory burden and improve daily, independent functioning in participants with mild Alzheimer's disease.

This is a non-pharmacological study evaluating the effects of SMR/delta ratio and beta1/theta ratio neurofeedback trainings on cognitive performance and electrical brain activity in elderly with mild cognitive impairment.

Individuals of advanced age are at higher risk of cognitive deterioration.A single bout of aerobic exercise was found to improve cognitive functions. The aim of this study is to explore the effect of a single bout of balance and coordination exercise versus aerobic exercise on cognitive functions among elderly people.