Clinical Research Directory

Alzheimer's Disease Neuroimaging Initiative 4

The Alzheimer's Disease Neuroimaging Initiative 4 (ADNI4) is a non-randomized, longitudinal, natural history study designed to validate biomarkers, improve clinical trial design, and advance understanding of Alzheimer's disease across the full disease spectrum. Building on the success of ADNI1, ADNI-GO, ADNI2, and ADNI3, ADNI4 integrates clinical, cognitive, imaging, genetic, and fluid biomarker data to characterize disease progression and predict cognitive decline. ADNI4 includes both in-clinic and remote cohorts and a small complementary sub-cohort, Together Exploring Aging Minds (TEAM-ADNI), which evaluates community-based recruitment and longitudinal data collection approaches.

Genetic Characterization of Movement Disorders and Dementias

Background: There are two basic types of movement disorders. Some cause excessive movement, some cause slowness or lack of movement. Some of these are caused by mutations in genes. On the other hand, dementia is a condition of declining mental abilities, especially memory. Dementia can occur at any age but becomes more frequent with age. Researchers want to study the genes of families with a history of movement disorders or dementia. They hope to find a genetic cause of these disorders. This can help them better understand and treat the diseases. This study will not be limited to a particular disorder, but will study all movement disorders or dementias in general. This study will perform genetic testing to identify the genetic causes of movement disorders and dementia. Today, genetic testing can be done to analyze multiple genes at the same time. This increases the chances of finding the genetic cause of movement disorders and dementias. Objectives: To learn more about movement disorders and dementia, their causes, and treatments. Eligibility: Adults and children with a movement disorder or dementia, and their family members. Healthy volunteers. Design: Participants will be screened with medical history and blood tests. Some will have physical exam. Participants will give a blood sample by a needle in the arm. This can be done at the clinic, by their own doctor, or at home. Alternatively, a saliva sample may be provided if a blood sample cannot be obtained. Participants can opt to send an extra blood sample to a repository for future study. Genetic test will be done on these samples. The samples will be coded. The key to the code will remain at NIA. Only NIA investigators will have access to the code key. Participants can request to receive results of the tests. Participation is generally a single visit. Participants may be called back for extra ...

Dyadic, App-supported Collaborative Care Intervention Trial for Family Caregivers of People Living With Dementia

In Germany, approximately 1.8 million individuals are living with dementia, representing a considerable share of those requiring long-term care. Many people with dementia (PlwD) express the desire to remain in their home environment for as long as possible. However, the progressive cognitive and physical decline associated with the disease renders caregiving increasingly time-intensive and places a substantial burden on family members. In the absence of sufficient support structures, maintaining home-based care becomes difficult, creating additional strain on the health care system. The study aims to address these challenges through an innovative intervention. Its primary objectives are: (1) to evaluate whether a dyadic care management model, delivered by specialized nurses with expertise in dementia care and supported by a mobile health application that provides direct access to caregiving experts and memory clinics, can help stabilize the home care situation; (2) to determine whether this approach reduces caregiver burden; and (3) to assess its effectiveness in alleviating neuropsychiatric symptoms in PlwD, compared to usual care.

Screening for Memory Studies

We hope to recruit participants into various clinical trials and research projects.

The Impact of Music Intervention on Sleep

The primary purpose of this Stage 1b NIH-funded clinical trial (K23AG073618, PI Petrovsky) is to determine the efficacy of a 1-month music intervention (Calming Music Personalized for Sleep Enhancement in PeRsons living with Dementia, CoMPoSER) on health outcomes in 72 dyads (144 participants) of persons living with dementia (PLWD) and their caregivers (Stage 1b). The secondary purpose of this research project is to examine the mechanism of stress reduction and sustained effects of the music intervention on PLWD and caregiver well-being. We will evaluate the acceptability of the mobile application CoMPoSER in a pilot RCT and determine the impact of the mobile application CoMPoSER on PLWD (sleep latency, sleep efficiency, wake after sleep onset, total sleep time, sleep quality) and caregiver (perceived stress and well-being) outcomes.

The Role of METhanogens in the PROgression Of Parkinson's Disease and Related Neurological Conditions

Gut problems, such as constipation, can have an important impact on quality of life of people who have them, and have been associated with higher risk of developing neurological diseases such as Parkinson's or Alzheimer's disease. Recent studies suggest that gut problems may also have implications for the progression of these diseases, as constipation is a risk factor for faster Parkinson's and Alzheimer's progression. However, how constipation and brain diseases are linked is unknown. Previous research has suggested that gut changes may lead to inflammation, which could play a role in accelerating the progression of both movement and memory problems in Parkinson's and memory and thinking problems in people with cognitive impairment. Methane is a gas that is naturally produced by microorganisms in the gut. Levels of methane can be measured using a simple breath test. Higher methane levels in the breath are thought to be more common in people with Parkinson's disease (PwP) when compared to people without Parkinson's (healthy controls) and have been associated with gut symptoms, particularly constipation, as well as worse movement problems in PwP, although they are less understood in conditions that affect memory and thinking (like dementia or mild cognitive impairment). The investigators want to better understand the changes in the gut of PwP and people with cognitive impairment (e.g. mild cognitive impairment or dementia). They will compare breath methane levels in PwP, people with cognitive impairment, people with REM Sleep Behaviour Disorder (a sleep condition linked to a higher risk of developing Parkinson's) and healthy participants. Participants will be followed-up over time to assess how methane levels are linked to changes in the blood and the stools, gut function, and clinical symptoms. This study has 2 components: Component 1: observational study, where the study investigators will follow 200 participants over 2 visits, 18 months apart. The study will recruit 4 groups of people: 50 people with Parkinson's disease, 50 people at high risk of developing Parkinson's disease (people with REM Sleep behaviour disorder), 50 people with other conditions affecting cognition (e.g. dementia, mild cognitive impairment), and 50 healthy controls. Component 2: study with 15 people with Parkinson's, who produce high methane levels, to test whether a probiotic (Lactobacillus reuteri) affects how much methane is produced.

ToolBox Detect: Low Cost Detection of Cognitive Decline in Primary Care Settings

Our study objective is to widely implement and evaluate a user-centered, scalable, electronic health record (EHR)-linked strategy for the routine detection of cognitive decline among diverse primary care settings. This strategy, called ToolboxDetect, will provide an efficient and sensitive cognitive screen that can be easily implemented in everyday clinical settings, and is responsive to patient, family, and caregiver concerns for potential symptoms of cognitive decline (CD) and cognitive impairment (CI).

The BASIC-S Feasibility Study for Vascular Risk Reduction

Vascular risk factors drive stroke, heart disease, and dementia, but translating lifestyle guidelines into routine clinical care remains challenging. To address this, we developed BASIC-S (Blood Pressure, Activity, Sleep, Interaction, Consumption, and Support), a framework targeting Blood pressure, Activity, Sleep, Interaction (socially), Consumption (nutrition), and Support using partner support and motivational interviewing. This individual-focused approach bypasses the logistical and financial barriers of complex clinical interventions by using sustained behavioral science to support gradual lifestyle changes. This study is a single-center, mixed-methods, cluster-randomized pilot trial evaluating the feasibility of the BASIC-S protocol in an occupational setting. A maximum of 60 households (120 participants) will be randomized 1:1 to either the BASIC-S intervention (motivational coaching, secure video check-ins, automated text messages, and a digital workbook) or standard care. Outcomes will assess feasibility, acceptability, and the validity of new tracking metrics to inform a future full-scale trial.

A Behavioural Sleep Intervention for People With Mild Cognitive Impairment and Mild Dementia

This is two arm pilot randomized controlled trial, with the intervention gorup receiving AI-supported behavioral sleep intervention and control group receiving usual care

Study Protocol: The Efficacy of Mushroom to Reduce Cognitive Decline in At-Risk Middle-aged Adults and Young-olds Living in the Community

The investigator's objective is to explore the definitive evidence of mushroom on cognitive functions among at-risk middle-aged and young-olds. The investigator carefully designed a randomized controlled trial (RCT) to assess the role of mushrooms in promoting cognitive functioning among around 600 middle-aged adults and young-olds. Participants were selected based on specific inclusion criteria, such as being community-living adults aged 45-80 years with a family history of dementia or subjective cognitive decline, while consuming mushrooms no more than once a week and having no dementia, along with the exclusion of individuals with neurological or psychiatric disorders and significant sensory or motor impairments. Participants in the intervention group will consume Pleurotus citrinopileatus mushroom powder daily for 24months, with compliance

Enhancing Shared Decision-making to Guide Care for People With Dementia and Diabetes

The goal of this study is to test CGM ASSIST. This is a digital tool that uses an interactive information display-an easy-to-read screen designed to help people with dementia (or memory loss) and diabetes, as well as their caregivers and doctors. Managing diabetes is often difficult for people with memory issues. This study uses a Continuous Glucose Monitor (CGM), which is a device that tracks blood sugar levels in real-time. CGM ASSIST adds a new way to see this data through interactive displays. These displays show clear information and medical guidelines to help patients and caregivers make sense of the glucose readings. The study aims to: * Increase Awareness: Help patients and caregivers recognize the dangers of low blood sugar (hypoglycemia) and how to treat it. * Improve Teamwork: Encourage "shared decision-making," where patients, caregivers, and doctors work together to make health choices. * Test Feasibility: See if it is easy and helpful for people with memory loss to use these interactive displays in their daily lives. * Understand Experiences: Learn how the thoughts and feelings of patients and families affect how they manage diabetes. By using these interactive displays, the researchers hope to make it easier for families to understand their health needs and communicate better with their medical team. Participants will: * Answer a survey about how they manage their diabetes * Learn how to use a Continuous Glucose Monitor and wear it for 14 days * Answer 3 brief telephone surveys during these 14 days * Complete a clinic visit with their doctor and answer a final survey on how this visit went using the CGM ASSIST report

Technology-Based Intervention Pilot Testing

This research project has three main goals: (1) To create a new screening tool that helps primary care doctors spot signs of neglect in older adults with dementia. (2) To design a support program that can be delivered both in person and through a mobile app on Android phones. (3) To run a clinical trial with three groups of participants to find out how effective the screening tool is on its own, and how effective it is when combined with the support program-compared to standard care. This current phase of the project focuses on parts of goals 1 and 2, as described below.

Caregiver Bootcamp

This study will assess the preliminary efficacy of a synchronous/asynchronous psychoeducation program designed to promote caregiving mastery in the immediate time period after a dementia diagnosis. It will also study the effects on caregiver and care recipient well-being.

Effects of Snoezelen Multisensory Therapy on Older Adults With Dementia

This randomized, controlled, longitudinal clinical trial investigates the effects of Snoezelen Multisensory Therapy (SMT) as an adjunct to standard therapy (ST) in older adults with dementia. Sixty-three participants with mild to moderate cognitive impairment and behavioral and psychological symptoms of dementia (BPSD) will be recruited from the Center for Older Adults Lucija (Slovenia). Participants will be randomized into two groups: control (ST) and experimental (ST + SMT). SMT will be administered 3 times per week for 12 weeks. Primary outcomes include changes in agitation (CMAI), depression (CSDD), anxiety (HADS), physiological indicators (heart rate, HR variability, SpO2, skin conductance, salivary cortisol), and frequency of psychiatric medication use. Subjective well-being will also be tracked before and after each session.

Effect of Cognitive Empathy Training on Dementia Caregivers

The goal of this project is to investigate the effect of cognitive empathy training on mental health, inflammation, and immune function in caregivers of people living with dementia (PLWD), and to examine the underlying psychological and neurobiological mechanisms. The primary aim is to establish the effectiveness of cognitive empathy training in improving caregiver mental health and immune function, and in decreasing caregiver inflammation The secondary aim is to investigate the psychological and neurobiological mechanism by which cognitive empathy training improves caregiver well-being

PET Imaging of Cyclooxygenases in Neurodegenerative Brain Disease

Background: About 5 million adults in the U.S. have Alzheimer s disease or another adult-onset neurodegenerative disorder. Many studies have found that inflammation in the brain contributes to these diseases. Researchers want to find a better way to measure this inflammation. Objective: To learn whether COX-1 and/or COX-2 is elevated in the brains of individuals with neurodegenerative brain disease compared to healthy volunteers. Eligibility: Adults age 18 years and older in good general health who have an adult-onset neurodegenerative dementia, such as AD, FTD, corticobasal syndrome, Huntington s disease, or MCI, ALS and healthy adult volunteers enrolled in protocols 01-M-0254 or 17-M-0181. Design: Participants will be screened with medical history, physical exam with vital signs, and lab tests. They will have a neuropsychological testing. Their heart function will be measured. Participants will have a magnetic resonance imaging (MRI) scan. The MRI scanner is a metal tube surrounded by a strong magnetic field. Participants will lie on a table that slides in and out of the tube. The machine makes noise. Participants will get earplugs. Participants will have 2 PET scans. They will be injected with the study drugs through an intravenous catheter placed in an arm vein. The PET scanner is shaped like a doughnut. Participants will lie on a bed that slides in and out of the scanner. A plastic mask will be molded to their head to keep them from moving. A thin plastic tube will be put into an artery at the wrist or elbow crease area. This will be used to draw blood during the scan. Participants will have 2-5 study visits. Participation lasts 1 week to 4 months, depending on scheduling.

Caregivers Preparing for Their Own Health Care Emergency

The proposed research will develop and test an online Emergency Preparedness Toolkit to help caregivers prepare for their own unexpected health events. Caregivers of persons with dementia often ignore their own health needs as their primary focus is the care of the person with dementia. This can lead to a caregiver delaying their own care and subsequently emergent health events. The Emergency Preparedness Toolkit provides guidance to the caregiver as to how to identify and transfer care to a standby caregiver. The goal is to provide a caregiver with the security and comfort that the person with dementia will be well cared for while they care for their own health needs.

Dementia Care Partner Hospital Assessment Tool

The purpose of this study is to see whether an adapted questionnaire called the Care Partner Hospital Assessment Tool (CHAT) for care partners of hospitalized patients living with Alzheimer's disease and related dementias (ADRD) (CHAT-AD) can help people with dementia receive better care after they go home from the hospital. Participants will be a care partner ('family member or friend') who provides unpaid care to a hospitalized adult relative or partner to help them take care of themselves because of dementia. Participants can expect to be in this study for 14 days.

Medication Collaboration Feasibility Study

This study examines the feasibility and acceptability of a brief medication collaboration intervention among older adults (age 60+) with early-stage dementia or mild cognitive impairment who take multiple medications and their family caregivers. The main aims are to: 1) determine the feasibility and acceptability of the intervention for older adults with early-stage dementia and their family caregivers, and 2) explore the effects of intervention on medication collaboration, medication adherence, and beliefs about dementia and autonomy. In this study, participants will: 1) complete a 15-30-minute baseline interview (by Zoom or phone), 2) participate together in a 45-60-minute virtual intervention led by an interventionist that includes: Assessment of medication responsibilities and beliefs. Education about dementia and medication management. Cognitive restructuring to address beliefs about independence and caregiver assistance. Collaborative planning for medication responsibilities and routines; and lastly 3) complete a 15-20-minute one-month follow-up interview (by Zoom or phone) to assess the intervention's acceptability and changes in medication management outcomes.

Multimodal Assesment of Alzheimer Patients

The goal of this study is to learn more about the changes in the brains of patients with cognitive impairment (MCI) and Alzheimer's Disease (AD). The main questions the study aims to answer are: 1. What findings can be used to earlier detect patients that will develop Alzheimers? 2. Which differences are seen between healthy and cognitively impaired patients? 3. Which differences are seen between patients with Alzheimers disease? Participants will undergo: * Cognitive tests * Magnetic resonance imaging (MRI) * Electroencephalography (EEG) * Blood sample collection * Fecal sample collection * A randomized group will undergo polysomnography analysis.

Acute Hospital Care at Home for People Living With Dementia

The investigators will perform a parallel-group multicenter randomized controlled trial of a 1-year pre-enrolled acute hospital care at home intervention vs usual care for people living with dementia. Patients will be randomized only after eligibility determination and after the family caregiver agrees to enroll; people living with dementia will assent when able. Patients will be allocated in a concealed fashion to the control and intervention groups in randomly selected block sizes of 4 or 6 in 4 strata reflecting their functional status (activities of daily living: 0, 1, 2-3, 4-6). Although family and clinicians cannot be blinded, the investigators will blind the data collectors and assessors.

Alzheimer's Disease Research Center (ADRC) PET Component Study

The purpose of this study is to further engage and characterize Alzheimer's Disease Research Center (ADRC) participants through additional research opportunities, particularly PET imaging. Amyloid and Tau PET imaging will be collected in 24 participants per year, for a total of 120 participants over five years. All participants will be followed longitudinally, including through potential transitions from normal aging to mild cognitive impairment (MCI) and Alzheimer's disease and related dementias (ADRD).

Dexmedetomidine in the Treatment of Agitation Associated With Dementia (TRANQUILITY II)

A study to determine the safety and efficacy of BXCL501 dosing for episodes of agitation associated with dementia when they occur (given as needed \[PRN\]), for a maximum of 28 doses within a 12-week treatment period.

Lived Experience Narratives in Dementia

The Lived Experience Narratives in Dementia (LEND) research programme involves five work packages (WP). WP1 explores how people living with dementia use narratives and how narratives can impact them. Findings will support the development of LEND theory. WP 2-3 focus on developing the digital Online LEND Intervention, assessing its usability and acceptability, and conducting a feasibility study within NHS memory assessment and community services. Activities across the first three WPs include interviews, focus groups, user-testing sessions, engagement evaluation interviews, and a two-arm randomised feasibility trial using a range of outcome measures. Findings from this stage will inform refinement of the intervention and determine the feasibility of progressing to a future randomised controlled trial (RCT) of the Online LEND Intervention. WP4 is the Online LEND Intervention two-arm RCT. WP5 involves dissemination. The protocol for WP4 and 5 have not yet been developed and rely on results from WP1-3.