Active clinical trials for "Cognitive Dysfunction"

The overall aim is to examine the impact of trauma and critical illness on the brain, peripheral immune system and cognition. This is a prospective study where a study group exposed to trauma and intensive care will be be examined with consecutive PET imaging, EEG, biomarkers and cognitive testing within 3 weeks of the trauma, after 3 months and finally after 12 months. The study group will consist of twenty trauma patients treated in the intensive care unit.

To explore the cognitive impairment caused by chemotherapy and endocrine therapy in premenopausal breast cancer patients and to find biomarkers with early predictive effect on this cognitive impairment by using multimodal integrated PET/MRI technology combined with psychobehavioral technology.

The goal of this study is to evaluate the impact of systemic therapy on cognition in older breast cancer patients, explore change in APE, LM and Cognition domains, measure associations between cognitive decline and QOL, and describe how genetic polymorphisms, inflammatory biomarkers, sleep and physical measures moderate cognitive outcomes. This study is being done nationally, with recruiting sites at Georgetown University, Montgomery General Hospital, Virginia Cancer Specialists, Washington Hospital Center, Reston Breast Care Specialists, Memorial Sloan-Kettering, Moffitt Cancer Center, City of Hope National Medical Center, Hackensack University Medical Center, Indiana University and University of California, Los Angeles.

Alzheimer's disease (AD) is the leading cause of dementia and its prevalence is estimated to exceed 100 million affects by 2050, becoming the main public health problem worldwide. AD is considered a clinicopathological entity characterized by a progressive cognitive impairment with affectation of memory and other cognitive domains, which underlies a neuropathological pattern with extracellular accumulation of β-amyloid protein (Aβ) in the form of neuritic plaques, intracellular deposits of tau protein in the form of neuritic strands and neurofibrillary tangles, neuronal and synaptic loss and glial proliferation. Classically, its definitive diagnosis implied the existence of a clinical phenotype compatible with dementia, together with the neuropathological findings characteristic of the disease. More recently, evidence of clinical and biological changes leading to the dementia phase has led to the development of new diagnostic criteria that divide the course of AD into 3 stages: (1) a pre-clinical phase, which would include persons with positive biomarkers with normal cognitive performance for their age and educational level; (2) a phase of mild cognitive impairment (MCI), characterized by cognitive performance lower than expected by age and educational level; and (3) a dementia phase, once cognitive deficits interfere with the activities of daily living. Recent research has also shed light into the subdivision of each of the above-mentioned stages in distinct phases. For example, the existence of a subjective perception of cognitive decline or a subtle cognitive decline, have been postulated as phases within the AD preclinical stage. The lack of positive results in the different clinical trials performed to date in patients with AD dementia has redirected the focus of therapeutic strategies towards preventing the development of dementia. For this reason, a detailed characterization of the successive clinical and biological changes that lead to the dementia stage is of vital importance in identifying the persons who could benefit from a possible preventive strategy, as well as the optimal moment to carry out the intervention. The the scientific community, is convinced that intervention aiming to prevent the clinical development of AD dementia must be implemented several years before the first symptoms arise. In this context, the present project is developed under the hypothesis that subjective cognitive decline (SCD) in individuals with a performance in cognitive tests within normality represents the first symptomatic manifestation of AD. In persons with SCD, the presence of a higher intensity of subjective complaint quantified using a specific subjective complaint questionnaire (SCD-Q) will be associated with lower cognitive performance and a higher rate of conversion to MCI and/or dementia. The relationship between the perception of cognitive decline by the subject and his/her relative will differently vary depending on the stage of the disease: in subjects with progressive cognitive impairment, the subjective perception of cognitive decline will decrease with disease progression whereas the perception of decline will increase with disease progression in their relatives. The degree of perception of cognitive decline throughout the different phases of the disease will be correlated with cognitive and affective patterns as well as with changes in AD biomarkers. These changes will be related to specific brain patterns and abnormal levels of AD biomarkers, which on the other hand will also be present in patients with MCI and mild dementia due to AD. The present study has two main objectives that are: To characterize from a cognitive and biomarker (when available) point of view persons with SCD and to study its association with the risk of presenting a progressive cognitive deterioration. To study the evolution of the subjective perception of cognitive impairment by the participants and their relatives and to analyze its impact in cognitive, affective and functional terms along the clinical-biological continuum of AD.

Alzheimer's disease (AD) clinically characterized by the cognitive impairment and lowering of various functional abilities lead to staggering costs and suffering, which are particularly related to the social impacts of caring for increasingly disabled individuals. Some of these changes can be almost undetectable in the early stages of the disease, worsening over time often and at a varying rate of progression in different people. The traditional clinical scales or questionnaires such as ADCS (Alzheimer's Disease Cooperative Study) - ADL (Activities of Daily Living) for detecting such functional disabilities are typically blunt and rely on direct observation or caregiver recall. Digital technologies, particularly those based on the use of smart phones, wearable and/or home-based monitoring devices, here defined as 'Remote Measurement Technologies' (RMTs), provide an opportunity to change radically the way in which functional assessment is undertaken in AD, RMTs have potential to obtain better measurements of behavioral and biological parameters associated with individual Activities of Daily Living (ADL) when compared to the current subjective scales or questionnaires. Divergence from normative ADL profiles could objectively indicate the presence of incipient functional impairment at the very early stages of AD. Therefore, the main hypothesis of this study is that RMTs should allow the detection of impairments in functional components of ADLs that occur below the detection threshold of clinical scale or questionnaires.

Observe the influence of entering hemodialysis treatment on the emotional and cognitive functions of ESRD patients. Observe the influence of entering hemodialysis treatment on the brain structure imaging of ESRD patients. Analyze and study the relevant clinical risk factors of the above-mentioned effects, and find targets for therapeutic intervention.

The investigator aims to assess the extent to which a brief exercise intervention improves systemic growth factor concentrations, reverses loss of systemic vascular networks and hypertension, and by extension, improves neurocognition. To test the investigator's hypothesis that increased cardiovascular fitness will correlate with improved vascular density, the investigator proposes the innovative use of retinal density scans.

Identify the degree of delirium in subjects with mild cognitive impairment and find the risk factors of delirium. Mortality, hospital stay, and medical expenses are analyzed as clinical consequences related to delirium incidence. Dementia conversion rate and conversion period of subjects with mild cognitive impairment with delirium and it identifies the effect of delirium on dementia conversion. Develop an AI(Artificial intelligence) algorithm for predicting dementia transition in subjects with mild cognitive impairment based on the research results of the 1st, 2nd, and 3rd years.

The development of cognitive dysfunction can profoundly affect HR-QoL as well as the possibility of societal participation and ability to work, and thereby relevantly impacts prospects for cancer survivorship. The aim of the study is to obtain improved understanding of the scope and magnitude of objective cognitive dysfunction in DTC survivors, and its relation to subjective cognitive dysfunction, thyroid hormone levels, physical activity and HRQoL. This is done in a prospective study where patients operated for a thyroid nodule (Bethesda IV-VI, i.e., benign [goitre with nodule and fibroadenomas], low-risk DTC and intermediate-high risk DTC) are included and asked to serially perform online neuropsychological testing as well as to complete questionnaires related to HR-QoL, physical activity and additional psychological and physical complaints. Blood is analysed for levels of thyroid hormones and systemic inflammation.

This is a multi-center, randomized, double-blind, placebo-controlled, Phase IV Trial to evaluate the efficacy and safety of Choline Alfoscerate compared to placebo in Mild Cognitive Impairment Patients with Cerebrovascular Disease