View clinical trials related to Cognitive Dysfunction.
Filter by:This is a pragmatic, multi-center, prospective, observational, non-interventional study and standing database of patients seen at the training institution for cognitive impairment diagnosed with Mild Cognitive Impairment (MCI) or Dementia. All patients seen at the training institution clinically diagnosed with MCI or dementia by their neurologists will be invited to participate in the study. The investigators will confirm the diagnosis and will explain the study as well as the patient information sheet to the patient and/or legal representative. All eligible patients seen will be assigned a study identification number. Data will be collected by the investigators as the patient undergoes routine clinical evaluation. Corresponding anonymized data on demographics, medical history and risk factors, level of functional impairment, diagnosis, baseline cognitive scores and management will be collected from each patient and entered in the database using a secure online data collection tool.
The aim of the present pilot study is to evaluate the feasibility, acceptability, and preliminary efficacy of a novel, context-sensitive neuropsychological rehabilitation intervention for childhood cancer survivors and their families.
Rationale: Cardiovascular disease and cognitive diseases are closely related. Cognitive impairment is common (21-39%) among patients with severe aortic valve stenosis. The proof-of-concept CP-TAVI study showed that increased cardiac output following transcatheter aortic valve implantation (TAVI) was associated with increased cerebral blood flow. It is hypothesized that increased cerebral blood flow (CBF) subsequently leads to improved cognitive functioning. Additionally, silent micro emboli caused by crushing of the calcified native valve during TAVI may cause cognitive deterioration. If it could be predicted which patients are at risk for TAVI induced cerebral micro emboli, these patients could benefit from cerebral protection devices, preventing cognitive decline. Objective: The objectives of the CAPITA study are 1A) to identify whether an increase in cardiac output after TAVI is associated with an increase of global CBF; 1B) explore regional differences in CBF after TAVI; 1C) determine whether (global or regional) increased CBF is associated with improved cognitive functioning; 1D) identify patient and procedural characteristics associated with increased cardiac output, CBF and cognitive functioning; 2A) identify the incidence and volume of new white matter hyperintensities after TAVI; 2B) evaluate patient and procedural predictors for the increase in white matter hyperintensities volume, including baseline aortic valve calcification volume, measured with computed tomography; 2C) if aortic valve calcification volume predicts new white matter hyperintensities, define a cut-off value for high-risk patients; 2D) assess whether the increase in white matter hyperintensity volume is associated with deterioration of cognitive scores. Study design: Prospective observational study, measuring cardiac output (echocardiography), cerebral blood flow (arterial spin labelling magnetic resonance imaging) and cognitive functioning (neuropsychological test battery) prior to TAVI (<24 hours to <one week) and at 3 months follow-up. At one year follow-up, cardiac output and cognitive function will be assessed. Study population: Patients with severe aortic valve stenosis eligible for transfemoral TAVI (n=142). Main study parameters/endpoints: Cardiac output (L/min), cerebral blood flow (mL/100g/min, change in %, relative to baseline) and cognitive functioning (extensive neuropsychological testing 60-90 minutes).
The wide-acting effects of Fasting-Mimicking Diets (FMDs) on metabolic, inflammatory and regenerative pathways leading to reduced pathology or risk factors for various diseases in mice and humans, has the potential to be effective against Alzheimer's disease (AD). It is proposed to conduct a randomized clinical trial of twelve monthly cycles of the ProlonADTM diet (by L-Nutra) vs. placebo diet in patients with aMCI or mild AD (MMSE 18-23). The primary endpoint of the study will be the feasibility and safety of the twelve cycles of ProlonADTM.
The purpose of this study aims to explore the surplus effect of arch support insole to a cognicise training program on lower-extremity function in community-dwelling older adults with mild cognitive impairment (MCI). In this randomized controlled intervention study, we will recruit 40 community-dwelling individuals aged ≥55 years with MCI. Experimental group (n=20) will receive cognicise training program with insole intervention (6 hours/day), while the control group (n=20) only undergo cognicise training. A 1-h training session will be given three times a week for 12 weeks for both groups. The outcomes include static standing balance, functional reach test, timed-up-and-go test, 10-m obstacle crossing, the Short Physical Performance Battery (SPPB), and gait assessment during single- and dual-task walking for 20 m at self-selected comfortable pace while performing serial subtractions (cognitive interference) or carrying a tray (motor interference). The results of the current study are expected to provide evidences in supporting the use of arch support insole among community-dwelling older adults with MCI. Interventions combing physical-cognitive training and insole for providing mechanical stability and somatosensory stimulation may serve as potential strategies for fall prevention.
This study aims to explore the effects of arch support insoles on balance and gait performance in older adults with mild cognitive impairment (MCI). We will recruit 40 female older adults with MCI. A randomized crossover trial will be used to determine the immediate effect of arch support insoles. All participants received one assessment session wearing and one session not wearing insole in a random order within 1-day. Then participants will be randomly allocated to experimental group (arch support insoles, n=20) or control group (no insoles, n=20) for at least 4-h every day for 1-month. Our primary outcomes include static standing balance, timed-up-and-go test, 10-m obstacle crossing, functional reach test, Short Physical Performance Battery (SPPB), and gait assessment during single- and dual-task walking for 20 m at self-selected comfortable pace while performing serial subtractions (cognitive interference) or carrying a tray (motor interference). Assessments will be conducted at baseline and after 2-wk and 4-wk of insole wear. Statistical analyses will be performed using SPSS 21.0 software. Two-way mixed ANOVA will be used to determine the immediate and short- and long-term effect of arch support insoles. The results of the current study are expected to provide evidences in supporting the use of arch support insoles for improving gait performance and postural stability for older adults with MCI which will contribute to balance and gait training as well as fall prevention.
The purpose of this study is to assess the safety and feasibility of administering standard of care monoclonal antibody (mAb) infusion therapy in combination with opening the blood-brain barrier with the Exablate Model 4000 Type 2 device in patients with mild Alzheimer's disease (AD) or mild cognitive impairment (MCI).
This is a multi-center longitudinal study that consists of five cohorts: cognitive normal aging (CN), Subjective cognitive impairment (SCI), mild cognitive impairment (MCI), Alzheimer's disease (AD) and vascular cognitive impairment (VCI). The goals of this study are as follow: 1.To establish longitudinal cohort study database containing comprehensive epidemiological data, neuropsychological test data, laboratory parameters, image data and biological samples. 2. To determine the risk factors of AD and other dementias. 3. To explore the conversion rates from CN to SCI, MCI or AD and the risk factors as well as biomarkers for the progression from CN to SCI, MCI or AD. 4. To explore and validate blood, CSF, urine, imaging and other biomarkers for the early detection and progression of AD.
The purpose of this study is to assess the safety, tolerability, pharmacokinetics (PK) and pharmacodynamics of MK-2214 in adults with mild cognitive impairment (MCI) or mild-to-moderate Alzheimer's Disease (AD). The primary hypothesis (Part 1) is that at a generally well tolerated dose level, the true geometric mean concentration at Day 85 of MK-2214 in cerebrospinal fluid is >0.3 nanomolar (nM). Optional healthy older participants (Part 2) may receive MK-2214 at dose levels determined by criteria met in Part 1.
Loss of cognitive function after major surgery is a significant risk in older people. It can occur acutely in the days after surgery as delirium or in months to years later as a persistent reduction in brain function termed neurocognitive decline. Together these conditions are called post operative cognitive dysfunction (POCD). They can be acutely distressing for patients and are associated with other problems after surgery. The causes of post operative cognitive dysfunction are poorly understood. Studies have been limited by a lack of biomarkers to predict which patients are at high risk of developing POCD. Research suggests silent strokes occurring during surgery and different sensitivities to anaesthetic medicines are associated with POCD. The project consists of a feasibility study to investigate markers that might predict people over 65 years old getting POCD. The first biomarker is a non-invasive monitor of anaesthetics effects on brain function called electroencephalography (EEG): The investigators will identify which EEG patterns predict delirium within five days surgery. The second set of biomarkers are two blood tests of proteins that increase after strokes: these are neurofilament light chains and tau proteins. The investigators will establish if these can be used to predict having POCD up to one year after surgery and long term cognitive impairment up to 5 years after surgery.