View clinical trials related to Mild Cognitive Impairment.
Filter by:The physio-pathology of Alzheimer's disease (AD) remains unknown and there is no cure. Thus, the search for objective markers of preclinical first signs of cognitive impairment, is currently a major public health issue. Early detection of the disease is a major challenge to hope to slow or even stop the neurodegenerative process before the stage of dementia. In AD the investigators observe: - A reduction in the volume of brain hippocampi associated with an alteration of the diffusion of water molecules in the white matter. - A structural brain degeneration coupled with a decrease in cerebral glucose metabolism. Recent publications show that cerebrospinal fluid (CSF)flow is also altered, probably due to dysfunction of the choroid plexus. Hence the potential interest to study is, in addition to conventional imaging, the imaging of CSF dynamics and choroid plexus metabolism. In that aim,the investigators use two imaging modalities: - Magnetic resonance imaging (MRI) is used to assess blood and CSF flow in the brain - Positron emission tomography (PET) is used to assess glucose metabolism in grey/white matter and also in choroid plexus. The investigators expect that, because of choroid plexus atrophy in AD, CSF flow would be altered as well as glucose metabolism dynamic in choroid plexus.
The goal of this project is to determine if task-activated fMRI is sensitive to the central cholinergic deficit associated with Mild Cognitive Impairment.
Regular physical activity is now recognized as a key element of good physical and mental health and this all ages. MAIN GOAL : Evaluate the effectiveness of physical training associated with a cognitive training in improving the cognitive function of patients diagnosed with Mild Cognitive Impairment (MCI). DESIGN : Controlled randomized monocentric and prospective study with clinical benefit for the patient with three groups : one physical training and cognitive exercise group, one physical training without cognitive exercise group and one control group. In agreement with the literature on the effects of physiological stress on cognitive performance, the investigators expect the best cognitive test scores in groups with exercise training compared with controls (35% versus 80% error), and better scores on the MMSE, IALD, depression Scale, Index of Pittsburg sleep quality and quality of Life Questionnaire. Furthermore the investigators hypothesize that this positive effect is greater in the physical training and cognitive exercise group compared with the physical training group only.
This is a safety and tolerability study investigating the effect of HPP854 in subjects with mild cognitive impairment or a diagnosis of mild Alzheimer's disease. The study will assess the pharmacokinetic and pharmacodynamic relationships of HPP854 in plasma, pharmacodynamic relationship in cerebral spinal fluid and plasma concentration profiles for Amyloid-Beta.
Background: Exendin-4 (or Exenatide) is a medication currently used to treat diabetes that has shown promising results in animal and cellular models of Alzheimer's disease. It is possible that Exendin-4 may be a treatment for Alzheimer's disease, which involves the gradual deterioration and death of neurons. Researchers are interested in studying the safety and comparing the effects of Exendin-4 with placebo on cognitive performance, clinical progression of dementia, various chemicals measured in blood and cerebrospinal fluid, and brain MRI, in individuals with early-stage Alzheimer's disease or mild cognitive impairment. Objectives: To determine the safety and tolerability of twice daily administration of Exendin-4, as well as to acquire preliminary evidence for effects on cognitive performance, clinical progression of dementia, various chemicals measured in blood and cerebrospinal fluid, and brain MRI, in individuals with early-stage Alzheimer's disease or mild cognitive impairment. Eligibility: Individuals at least 60 years of age who have objective evidence of early-stage Alzheimer's disease or mild cognitive impairment in screening testing. Design: - Participants will be screened. - Following the telephone screening, two in-person screening visits to determine eligibility. - The screening visit will involve a medical history and neurological examination, tests of memory and cognition, a lumbar puncture, collection of blood and saliva samples, and brain Magnetic Resonance Imagine (MRI) studies. Participants will be required to appoint a Durable Power of Attorney for research and medical care during this protocol. - Eligible participants will be divided into two groups (double-blind randomization). One group will receive Exendin-4 SC twice daily, and the other will receive a placebo. Participants will keep a medication diary and will be scheduled for additional study visits 1 and 2 weeks after the start of the treatment. - Participants will have regular followup visits with blood tests, cognitive tests, imaging studies, and other examinations 6, 12, and 18 months after the start of the treatment. Another lumbar puncture may be performed optionally at the 18-month followup visit.
This trial will determine the pharmacokinetics of Posiphen® in both plasma and CSF after a 10-day treatment period with Posiphen® in subjects with amnestic MCI. The effects of this treatment on biomarkers will also be determined in CSF, whole blood, and plasma or serum as primary pharmacodynamic (PD) objectives.
A vitamin nutriceutical, Memory XL, has been shown to provide maintenance of cognitive status in mild, moderate, and severe Alzheimer's disease patients (2 publications by T. Shea). Because this nutriceutical is now patented by the Univ. of Mass., other trials at that institution may be considered a conflict of interest. Therefore, a study of its effects on Mild Cognitive Impairment (MCI) patients will be conducted by PI who is not affiliated with Univ. of Mass. or with Dr. Shea. The study hypothesis is: Memory XL will maintain or improve the cognitive and behavioral status of patients diagnosed with MCI during the year of participation in the study; normally, 10-25% of MCI patients convert to mild Alzheimer's dementia each year.
This is an additional study to the primary Mild Cognitive Impairment (MCI) study (LSU#H04-049; NCT00243451)that is underway of PET detection of Mild Cognitive Impairment. This study has preliminary data that indicates objective analysis of PET brain image metabolic data is a sensitive marker for AD. The goal of this proposal is to determine the efficacy of curcumin in the treatment of MCI or mild Alzheimer's Disease (AD).
This study will investigate AQW051 in patients with either mild Alzheimer's disease or amnestic mild cognitive impairment. The effect on cognitive impairment will be measure using validated computerized tests which measure cognitive function. This study will also explore the safety and tolerability of AQW051 in these patients.
The purpose of this study is to demonstrate a long term efficacy of S18986 versus placebo on episodic memory performance in patients with MCI