View clinical trials related to Cognition Disorders.
Filter by:Projections from epidemiological studies suggest that, among the Western adult population, one in three will present a cerebrovascular accident (stroke), severe cognitive disorders, or both. To better diagnose the Vascular Cognitive Impairment, new standards were developed by a North America working group which are under validation. It is essential to adapt these standard for French-speaking population, and especially to define cutoff scores of the cognitive battery to determine cognitive deficit. The investigators propose a study coordinated by the University-Hospital of Amiens for french speaking centers. This study will investigate this battery with 906 controls to define the standards and 302 stroke affected patients to define the frequency and cognitive mechanisms. This step is essential for people to benefit from these new standards.
This study aims to evaluate the possible effect of dexamethasone on prevention of cognitive dysfunction in the postoperative period of elderly patients undergoing to surgery under general anesthesia.
Rationale: improving the early detection of AD at prodromal pre-dementia stages has become a major matter of concern. There is now an important body of literature stating that early isolated cognitive deficits (Mild Cognitive Impairment-MCI-) predict the risk of developing AD. Several biomarkers are now available : specific and sensitive neuropsychological assessments, morphometric evaluation of hippocampal volume and white matter changes by MRI, cerebrospinal fluid or plasma dosage of Ab fragments and tau proteins, assessment of brain glucose hypometabolism in temporo-parietal regions with PET [F18]FDG. However, PET imaging using labelled compounds specifically binding to APs has been suggested to improve the diagnostic reliability and to potentially help in shortening the delay until formal clinical diagnosis of AD. F18 AV45 is a new radiotracer which kinetics characteristics allows 10 to 15 minutes acquisition 50 to 60 minutes post injection. Objectives: The primary objective of the study is to compare F18 AV45 cortical uptake in AD, MCI patients and Healthy Controls. Secondary objectives will be to compare cortical uptake of F18 AV45 in MCI subject who will have convert toward dementia versus those who will not, at two year follow-up period, to compare level of 18F-AV45 cortical uptake with neuropsychological testing, PET FDG hypometabolism, ApoE genotype. Method: Prospective multicentric study. 65 patients expected to enter the study. Primary outcome measure: Standard Uptake Volume ratios.
The purpose of this study is to determine whether a medication called Vyvanse® (lisdexamfetamine; LDX) has an impact on cognitive functioning, specifically measures of sustained attention, verbal encoding and recall and working memory, in menopausal aged women. LDX is a medication used to treat attention deficit hyperactivity disorder (ADHD). The cognitive difficulties that menopausal women report experiencing are typical of adults who are diagnosed with ADHD. The investigators will assess whether or not LDX is effective in alleviating those cognitive disruptions when compared to a placebo.
The purpose of this study is to determine whether a home care medication management program which includes nurse coordination and use of the MD.2 medication-dispensing machine will affect older adults' health outcomes, satisfaction, use of health care services, and health care costs over a one year period. The investigators propose a longitudinal three group repeated measures design, enrolling, and randomly assigning, clients who are discharged from a home health care agency with documented problems in medication management. One group will receive the MD.2 medication dispensing device and nurse coordination, the second group will receive a Medplanner: a simple box that has separate compartments for individual medication times over the course of a week plus nurse coordination, and the final group will receive Usual Care. The study hypotheses are the following: H1: With respect to health status outcomes, the MD.2 group will exhibit a more positive trajectory in physical and mental health status, functional status, cognitive status and depressive symptoms over the course of a year than will the Medplanner Group. H2: With respect to health status outcomes, the Medplanner Group will exhibit a more positive trajectory in physical and mental health status, functional status, cognitive status and depressive symptoms over the course of a year than will the Usual Care Group. H3: The rate of hospitalization, hospital days and emergency department visits will be significantly lower for the MD.2 Group as compared to the Medplanner Group. H4: The rate of hospitalization, hospital days and emergency department visits will be significantly lower for the Medplanner Group as compared to the Usual Care Group. H5: The nursing home admission rate will be significantly lower for the MD.2 Group as compared to the Medplanner Group. H6: The nursing home admission rate will be significantly lower for the Medplanner Group as compared to the Usual Care Group. H7: The total cost of care will be significantly lower for the MD.2 Group as compared to the Medplanner Group. H8: The total cost of care will be significantly lower for the Medplanner Group as compared to The Usual Care Group. H9: There will be incremental savings in terms of costs per quality adjusted life year (QALY) gained in the MD.2 group compared with the Medplanner Group. H10: There will be incremental savings in terms of costs per QALY gained in the Medplanner group compared with the Usual Care Group.
Based on prior published pilot studies, the investigators have initiated a larger, multi-site placebo-controlled clinical trial with Alzheimer's disease (AD) patients and individuals diagnosed with Mild Cognitive Impairment (MCI), with the hopes of (1) confirming (or denying) the above promising clinical findings, and (2) determining whether or not our formulation can delay MCI "conversion" to AD.
This study will examine the effects of a theoretically grounded and manualized cognitive rehabilitation program on patients with Spina Bifida (SB). SB is often associated with deficit in higher order control over cognition, emotion and behaviour; which is typically referred to as executive functions. The present study will examine the efficacy of Goal Management Training (GMT) in patients with SB that experience executive difficulties. It is expected that GMT will have a favourable effect on cognitive executive functioning, psychological and health related factors.
Following chemotherapy, some breast cancer survivors report alterations in their ability to remember, concentrate, or think, which can have significant emotional, psychological, and economic impact on their lives. Survivors have also reported feeling frustrated by the response of the medical community, who either may not acknowledge their symptoms or have no treatment options to suggest. Exercise may be a promising treatment, as improvements in cognitive function with exercise have been demonstrated in older adults and other clinical populations. The investigators will recruit women who have completed chemotherapy for breast cancer (within the past 2 years) and report cognitive changes. Women will be randomly assigned to either a 24-week aerobic exercise intervention or delayed exercise control (offered the same exercise program following the study). At the start and end of the study the investigators will measure: i) performance on four standard neuropsychological tests that measure working memory, learning, and problem solving; ii) a questionnaire on cognitive function and its impact on quality of life; iii) functional magnetic resonance imaging (fMRI) during two of the standard neuropsychological tests which provides information on how the brain is working during the tests. To knowledge of the investigators this is the first study to examine the effect of an exercise intervention on cognitive function in breast cancer survivors. In addition, the use of fMRI imaging is a new way to approach this research question, and may be more sensitive to change than traditional measures of cognitive function.
RATIONALE: Monoclonal antibodies, such as bevacizumab, can block tumor growth in different ways. Some block the ability of tumor cells to grow and spread. Others find tumor cells and help kill them or carry tumor-killing substances to them. Drugs used in chemotherapy, such as lomustine, work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. It is not yet known which regimen of bevacizumab given together with lomustine is most effective in treating patients with glioblastoma multiforme in first recurrence. PURPOSE: The primary objective of this study is to investigate whether the addition of bevacizumab to lomustine improves overall survival (OS) in patients with recurrent glioblastoma compared to treatment with lomustine alone.
Obesity has been associated with cognitive impairments, lower blood flow, metabolic activity and brain volume. Obesity in adulthood is a risk factor for Alzheimer's disease in the elderly. The mild cognitive impairment (MCI) is a condition that may precede dementia. We hypothesized that promotion of weight loss in obese people with MCI, through caloric restriction could lead to improvement in cognitive performance or reduction in the rate of decline and decreased risk of dementia. A sample of 80 patients aged ≥ 60 years, obese, with MCI, will be randomized to two groups that will be followed for 12 months. The control group will receive conventional medical care. The intervention group will receive nutritional counseling individually and in groups, aiming to promote weight loss through caloric restriction, and medical monitoring. Before and after intervention patients will be evaluated for anthropometry, body composition, physical performance, control of comorbidities, laboratory tests (glucose, insulin, lipid profile, leptin, adiponectin, interleukin 6, tumor necrosis factor alpha, CRP), Genotyping apolipoprotein E, neuropsychological battery, questionnaires about activities of daily living, physical activity and diet.