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Find 166 clinical trials for alzheimer's disease near Phoenix, Arizona. Connect with research centers in your area.
Showing 41-60 of 166 trials
NCT04464564
This study was conducted to evaluate the efficacy, safety, and tolerability of AVP-786 (deudextromethorphan hydrobromide \[d6-DM\]/quinidine sulfate \[Q\]) compared to placebo for the treatment of agitation in participants with dementia of the Alzheimer's type.
NCT05399888
In this study, researchers will learn more about a study drug called BIIB080. The study will focus on participants with mild cognitive impairment or mild dementia due to AD. The main question researchers are trying to answer is if BIIB080 can slow the worsening of AD more than placebo. It will focus on what dose of BIIB080 slows worsening of AD the most. To help answer this question, researchers will use the Clinical Dementia Rating-Sum of Boxes, also known as the CDR-SB. * Clinicians use the CDR-SB to measure several categories of dementia symptoms. * The results for each category are added together for a total score. Lower scores are better. Researchers will also learn more about the safety of BIIB080. The study will be split into 2 parts. The 1st part is the Placebo-Controlled Period. The 2nd part is the Long-Term Extension (LTE) Period. The 2nd part of the study will help researchers learn about the long-term safety of BIIB080, and how it affects the participant's daily life, thinking, and memory abilities in the longer term. A description of how the study will be done is given below. * After screening, participants will first receive either a low dose or high dose of BIIB080, or a placebo, as an injection into the fluid around the spinal cord (cerebrospinal fluid). A placebo looks like the study drug but contains no real medicine. * Participants will receive BIIB080 or placebo once every 12 weeks or 24 weeks. * After 76 weeks of treatment in the Placebo-Controlled Period, eligible participants will move onto the Extension Treatment period, which will last 96 weeks. * In the extension period, participants who received placebo will be switched to high dose BIIB080 every 12 or 24 weeks. * Participants may be in the study for up to 201 weeks, or about 4 years. This includes the screening and follow-up periods. * Participants can continue to take certain medications for AD. Participants must be on the same dose of medication for at least 8 weeks before the screening period. * After the screening period, most participants will visit the clinic every 6 weeks.
NCT05310071
The primary objective of this study is to verify the clinical benefit of monthly doses of aducanumab in slowing cognitive and functional impairment as measured by changes in the Clinical Dementia Rating Scale Sum of Boxes (CDR-SB) score as compared with placebo in participants with early Alzheimer's disease.
NCT03393520
This study will be conducted to evaluate the efficacy, safety, and tolerability of AVP-786 compared to placebo, for the treatment of agitation in participants with dementia of the Alzheimer's type.
NCT01767909
An urgent need exists to find effective treatments for Alzheimer's disease (AD) that can arrest or reverse the disease at its earliest stages. The emotional and financial burden of AD to patients, family members, and society is enormous, and is predicted to grow exponentially as the median population age increases. Current FDA-approved therapies are modestly effective at best. This study will examine a novel therapeutic approach using intranasal insulin (INI) that has shown promise in short-term clinical trials. If successful, information gained from the study has the potential to move INI forward rapidly as a therapy for AD. The study will also provide evidence for the mechanisms through which INI may produce benefits by examining key cerebral spinal fluid (CSF) biomarkers and hippocampal/entorhinal atrophy. These results will have considerable clinical and scientific significance, and provide therapeutically-relevant knowledge about insulin's effects on AD pathophysiology. Growing evidence has shown that insulin carries out multiple functions in the brain, and that insulin dysregulation may contribute to AD pathogenesis. This study will examine the effects of intranasally-administered insulin on cognition, entorhinal cortex and hippocampal atrophy, and cerebrospinal fluid (CSF) biomarkers in amnestic mild cognitive impairment (aMCI) or mild AD. It is hypothesized that after 12 months of treatment with INI compared to placebo, subjects will improve performance on a global measure of cognition, on a memory composite and on daily function. In addition to the examination of CSF biomarkers and hippocampal and entorhinal atrophy, the study aims to examine whether baseline AD biomarker profile, gender, or Apolipoprotein epsilon 4 (APOE-ε4) allele carriage predict treatment response. In this study, 240 people with aMCI or AD will be given either INI or placebo for 12 months, following an open-label period of 6 months where all participants will be given active drug. The study uses insulin as a therapeutic agent and intranasal administration focusing on nose to brain transport as a mode of delivery.
NCT03623672
This study will enroll participants with idiopathic rapid eye movement (REM) sleep behavior disorder (RBD), for the purpose of preparing for a clinical trial of neuroprotective treatments against synucleinopathies.
NCT02615002
This study is a Phase 2, randomized, placebo-controlled, dose-ranging study of piromelatine (5, 20, and 50 mg daily for 6 months) versus placebo to determine an effective dose based on efficacy (cognitive performance), safety, and tolerability in patients with mild dementia due to Alzheimer's Disease (AD).
NCT05108922
The main purpose of this study is to compare donanemab to aducanumab on brain amyloid plaque clearance in participants with early symptomatic Alzheimer's Disease (AD).
NCT05107882
This observational, cross-sectional study is designed to validate a novel diagnostic test for the detection of phenotypic changes in the retina that correlate with likely PET amyloid status (negative or positive), to aid in the evaluation of adult patients with cognitive impairment who are being evaluated for Alzheimer's disease and other causes of cognitive decline. The CAS test is an adjunct to other diagnostic evaluations, and is indicated for use with the Optina Diagnostics' MHRC (K200254).
NCT05476783
This is an open-label long term extension study for participants with Alzheimer's disease (AD) who have completed Protocol TB006AD2102 (lead-in study) or participants who would have been eligible for the lead-in study but were not enrolled (de novo). The study is designed to evaluate the safety, tolerability, pharmacokinetics (PK), and pharmacodynamics (PD) of TB006. The total study duration for each participant will be up to 113 weeks.
NCT03828747
This Phase II, multicenter, randomized, double-blind, placebo-controlled, parallel-group study will evaluate the clinical efficacy, safety, pharmacokinetics, and pharmacodynamics of semorinemab in patients with moderate AD. The study consists of a screening period, a double-blind treatment period, an optional open-label extension (OLE) period, and a safety follow-up period. There may be up to two study cohorts.
NCT04141891
This Stage II randomized, controlled, longitudinal trial seeks to assess the acceptability, feasibility, and effects of a driving decision aid use among geriatric patients and providers. This multi-site trial will (1) test the driving decision aid (DDA) in improving decision making and quality (knowledge, decision conflict, values concordance and behavior intent); and (2) determine its effects on specific subpopulations of older drivers (stratified for cognitive function, decisional capacity, and attitudinally readiness for a mobility transition). The overarching hypotheses are that the DDA will help older adults make high-quality decisions, which will mitigate the negative psychosocial impacts of driving reduction, and that optimal DDA use will target certain populations and settings.
NCT06284213
Biomarkers for Vascular Contributions to Cognitive Impairment and Dementia (MarkVCID) is an NIH-funded consortium dedicated to finding biomarkers involved in age-related thinking and memory problems. Alzheimer's disease and other dementias leave signatures on brain scans or in the blood called biomarkers. The MarkVCID study will measure a panel of candidate biomarkers in 1800 participants and watch them closely to see what they tell us about changes in brain function and risk of memory loss. Age-related problems in thinking and memory represent some of the greatest risks to public health in the US and globally. Diseases that affect small blood vessels in the brain have been shown to be major contributors to these changes. However, research and patient care can be held back by limited biomarkers that identify who should be treated. The MarkVCID Consortium includes 17 US medical centers, a Coordinating Center, an External Advisory Committee, and NIH leadership. Data and biospecimens collected as part of this research study will be stored in a research database and biorepositories, so that researchers can use this information to study brain function.
NCT05227118
The purpose of this study is to evaluate the safety and tolerability of multiple ascending doses of MK-8189 in participants with Alzheimer's Disease (AD) with or without symptoms of agitation-aggression and/or psychosis.
NCT04500847
This is a randomized, double-blind clinical trial of a daily oral dose of 200 mg emtricitabine vs. placebo in 35 participants with biomarker-confirmed MCI or mild to moderate dementia due to Alzheimer's disease. Study duration for each subject participating in the placebo-controlled research study will be approximately 12 months (up to a 3 months Screening Period, Baseline visit (1 month), 6 months of placebo or emtricitabine dosing, and 1 month follow-up). Participants will have up to 2 months to complete all procedures for the month 6 study visit.
NCT05531591
The purpose of this study is to assess which antidepressants work the best in older adults who have treatment-resistant depression (TRD), and to test whether treatment-resistant late life depression is associated with declines in memory and attention and brain structure and function.
NCT05001009
The long term goal is to improve quality of care in Veterans with serious illnesses by aligning medical care with Veterans' goals and values. The objective of this study is to use a sequentially randomized trial to determine what implementation strategies are effective to increase early, outpatient goals of care conversations. The study will use interviews with and surveys of medical providers, patients, and caregivers, along with medical record data. This work is significant because it tests ways Veterans can express their goals and preferences for life sustaining treatments and have them honored.
NCT06025877
There is a major unmet need for timely, non-invasive, and low-burden evaluation of patients presenting with mild cognitive impairment (MCI) and dementia. MCI impacts 12-18% of people in the United States over age 60 years (Alzheimer's Association. Mild Cognitive Impairment (MCI) available at https://www.alz.org/alzheimers-dementia/what-is-dementia/related\_conditions/mild-cognitive-impairment. Accessed August 16, 2022). MCI does not substantially interfere with daily activities, although complex functional tasks may be performed less efficiently (Knopman DS, Petersen RC. Mild cognitive impairment and mild dementia: a clinical perspective. Mayo Clin Proc. 2014;89(10):1452-1459. doi:10.1016/j.mayocp.2014.06.019). Approximately 30% of MCI patients have Alzheimer's disease (AD) as a cause of their symptoms (Lopez,OL, Kuller LH, Becker JT, et al. Incidence of dementia in mild cognitive impairment in the cardiovascular health study cognition study. Arch Neurol. 2007;64(3):416-420.doi:10.1001/archneur.64.3.416)). In contrast, dementia is defined by chronic, acquired loss of two or more cognitive abilities caused by brain disease or injury, often associated with significant interference with the ability to function at work or at usual activities. (Knopman DS, Petersen RC. Mild cognitive impairment and mild dementia: a clinical perspective. Mayo Clin Proc. 2014;89(10):1452-1459. doi:10.1016/j.mayocp.2014.06.019). Approximately 60-80% of dementia patients have AD as a cause of their symptoms (Alzheimer's Association. Mild Cognitive Impairment (MCI) available at https://www.alz.org/alzheimers-dementia/what-is-dementia/related\_conditions/mild-cognitive-impairment. Accessed August 16, 2022).
NCT02624778
The study will evaluate the effect of LY3002813 on brain scans. The study will evaluate the safety of LY3002813 by looking at adverse events (side effects). The study will also look at the effect the body has on LY3002813. Study participants will have mild cognitive impairment (MCI) due to AD or mild to moderate AD. The study involves 3 parts. * Part A in which participants will receive a single dose of LY3002813 or placebo (no drug). * Part B in which participants will receive multiple doses of LY3002813 or placebo for 24 weeks. * Part C in which participants will receive multiple doses of LY3002813 or placebo for up to 72 weeks. Drug will be given as an intravenous infusion (injection into a vein). For Parts A, B and C, the study will last approximately 72 weeks, not including screening of approximately 56 days. The study is for research purposes only and is not intended to treat any medical condition.
NCT04308304
The study investigated the effects on safety and pharmacokinetics (PK) of MK-1942 and donepezil when co-administered to participants with Alzheimer's Disease with mild-to-moderate cognitive impairment stably treated with donepezil. The objectives of this study were to determine if the combination of MK-1942 with donepezil increases the incidence or severity of adverse events (AEs) previously reported for these agents alone, or results in unanticipated AEs in the patient population targeted for MK-1942 treatment. In addition, changes in the PK parameters of either MK-1942 or donepezil as a result of co-administration were assessed.
