Cardiovascular Diseases Clinical Trials

Arrhythmogenic ventricular cardiomyopathy (AVC) is a genetic condition which affects the heart and can lead to heart failure and rhythm problems, of which, sudden cardiac arrest or death is the most tragic and dangerous. Diagnosis and screening of blood-relatives is very difficult as the disease process can be subtle, but sufficient enough, so that the first event is sudden death. The Mayo Clinic AVC Registry is a collaboration between Mayo Clinic, Rochester, USA and Papworth Hospital, Cambridge University Hospitals, Cambridge, UK. The investigators aim to enroll patients with a history of AVC or sudden cardiac death which may be due to AVC, from the US and UK. Family members who are blood-relatives will also be invited, including those who do not have the condition. Data collected include symptoms, ECG, echocardiographic, MRI, Holter, loop recorder, biopsies, exercise stress testing, blood, buccal and saliva samples. Objectives of the study: 1. Discover new genes or altered genes (variants) which cause AVC 2. Identify biomarkers which predict (2a) disease onset, (2b) disease progression, (2c) and the likelihood of arrhythmia (ventricular, supra-ventricular and atrial fibrillation) 3. Correlate genotype with phenotype in confirmed cases of AVC followed longitudinally using clinical, electrocardiographic and imaging data. 4. Characterize desmosomal changes in buccal mucosal cells with genotype and validate with gold-standard endomyocardial biopsies Read Less

The "Genomic medicine Risk Assessment Care for Everyone" (GRACE)" intervention project will develop a scalable end-to-end solution for risk assessment and management that meets the needs of those populations living in low resource settings. The long-term goal is to increase access to and uptake of risk-informed evidence-based guidelines that will improve population health through better patient outcomes, higher quality of life, and decreased costs. The three primary aims are: Aim 1: Develop a scalable implementation framework that guides each unique clinical setting, including low resource settings, in deploying GRACE effectively for the needs of their patients and providers. Aim 2: Facilitate the potential for genomic medicine to promote population health by broadening access to and uptake of genomic risk assessment by the general population through a pragmatic implementation-effectiveness trial of GRACE. Aim 3: Reduce health disparities related to genomic medicine by allowing individual adaption of GRACE to suit their level of resources, education, and access within a pragmatic implementation-effectiveness trial. Three sets of participants will be engaged: patients (n=750), providers (n=25), and family members of "probands" (i.e., patients that have a genetic change that increases risk, n\~500). Patient participants will be asked to complete a baseline survey, enter their family health history information into MeTree (a family health history web-based platform) and complete a survey about their experience using the platform. Subsequent study procedures will depend on: 1) the results of their MeTree risk evaluation, 2) their acceptance/declination of genetic testing (for those categorized as needing testing by MeTree), and 3) the results of the test (for those accepting testing). Provider participants will be providers who are the primary care physicians treating one or more patients enrolled in the patient participant group. Providers will be notified on a patient by patient basis once the patient participant under their care has complete the risk assessment process and the risk report is available from MeTree. At study completion, provider participants will be asked to complete a survey about their demographics, practice, and experiences with the study. Blood relatives of the probands who are identified by the proband as open to engaging with the study will be contacted and offered genetic counseling and genetic testing. Read Less

This study aims to obtain data on the potential influence of Vine to Bar product(s) containing Chardonnay marc on cardiometabolic health. These initial studies will inform the design and timing of data collection for future dietary intervention trials that will examine the influence of Chardonnay marc intake on outcomes/biomarkers of both cardiometabolic health and the gut microbiome. This includes collecting data on the potential differences in response to the products based on the unique food matrix for each of the products that will be tested. Moreover, as there is a paucity of data on the influence of cocoa flavanol intake on vascular function beyond 4 hours post intake, the response of the selected outcomes will be assessed after 6 hours of flavanol intake. This is a time point that captures the increased circulating presence of microbial derived flavanol metabolites. Read Less

Recently a dietary recommendation of 400 - 600 mg/ day has been proposed for the reduced risk of developing cardiovascular disease. Dietary flavanols can be obtained from the intake of foods such as tea, cocoa, wine, berries and apples. Incorporating Chardonnay Marc (the skins and seeds of Chardonnay grapes) into the diet can be an additional source of dietary flavanols. Like other flavanol-rich foods, Chardonnay Marc provides fiber and polysaccharides that may benefit gut health. This study seeks pilot data on the impact of the daily incorporation of Chardonnay Marc powder into the diet on markers of gut and cardiometabolic health. Read Less

The primary objectives of this application are to 1) investigate the effect of increased daily consumption of the Keto5 XOGenius beverage on outcomes associated with elevated risk for various neurocognitive and pathophysiological conditions/diseases. And 2) to investigate the effect of daily consumption of the Keto5 XOGenius beverage on the following variables: waist circumference, body weight, and body mass index (BMI). Read Less

Cardiovascular disease (CVD) is the leading cause of death in the US general population. Although CVD mortality rates declined for both Black and White populations during the past two decades, they are still higher in Black adults than White adults. There are also persistent disparities in CVD risk factors with higher prevalence of obesity, hypertension, and diabetes in Black compared to White populations. In addition, CVD and risk factors are more prevalent in the residents of Louisiana compared to the US general population. The Church-based Health Intervention to Eliminate Racial Inequalities in Cardiovascular Health (CHERISH) study will use a church-based community health worker (CHW)-led multifaceted intervention to address racial inequities in CVD risk factors in predominantly Black communities in New Orleans, Louisiana. The primary aim of the CHERISH study is to compare the impact of two implementation strategies - a CHW-led multifaceted strategy and a group-based education strategy - for delivering interventions recommended by the 2019 American College of Cardiology (ACC)/American Heart Association (AHA) Guideline on the Primary Prevention of Cardiovascular Disease on implementation and clinical effectiveness outcomes in predominantly Black church community members over 18 months. Read Less

Home-based CR (HBCR) is an alternative to traditional CR programs that has comparable efficacy in improving morbidity/mortality and increases access to critical services. There is major potential to improve Veteran engagement in CR by combining digital coaching (d-Coaching) with existing VA-supported technologies. The investigator's theory-based intervention targets a critical component of successful CR engagement that is not available through traditional programs: virtual social support through a social network. In addition, the investigators propose to improve self-efficacy and self-regulation through interactive digital multi-media education, personalized feedback, and motivation so that Veterans can complete the prescribed HBCR program and maintain physical activity long-term. This RCT will evaluate the effects of HBCR alone (usual care) versus HBCR + d-Coaching, including a private group with direct messaging on the Connecteam mobile application and bimonthly engagement sessions via VA Video Connect. The investigators will randomly assign 150 Veterans from 2 HBCR programs to a 3-month intervention. The addition of d- Coaching to existing digital technologies will be operationalized by using a private social media group to provide social support, education, personalized feedback, and motivation. The investigators aim to determine the effect of the d-Coaching intervention on: a) the number of completed HBCR sessions over 3 months, b) functional capacity, c) physical activity, c) psychosocial outcomes, d) clinical outcomes, and e) social cognitive factors of self-efficacy, self-regulation, and perceived social support over 6 months. The investigators will also evaluate the extent to which self-efficacy, self-regulation, and perceived social support mediate the effect of the intervention on function and physical activity. Read Less

South Asian (Indian, Pakistani, Bangladeshi, Nepali, and Sri Lankan) individuals have high rates of cardiovascular disease that is not explained by traditional cardiovascular risk factors. Though South Asians represent over one-quarter of the world's population, there are no longitudinal studies in this high-risk ethnic group. The investigators aim to establish a longitudinal study of South Asians at three United States centers to identify risk factors linked to subclinical atherosclerosis and incident cardiovascular disease. The purpose of this study is to understand the causes of heart disease and stroke in South Asians and compare these causes to those in other United States ethnic groups. Read Less

This study is a mechanistic clinical trial designed to investigate the effects of the circadian system and sleep on non-dipping blood pressure (BP) in people with hypertension (HTN). Read Less

The goal of this clinical trial is to engage African-American churches via an established community-academic partnership (FAITH! Program) to build capacity to promote cardiovascular health and digital health equity in African-American faith communities. There are 3 study aims: Aim 1: Co-design a culturally tailored digital health equity toolkit with community members Aim 2: Train a network of Digital Health Advocates (DHAs) in digital health equity and cardiovascular health promotion Aim 3: Test the impact of a DHA-enhanced mobile health intervention (the FAITH! App) on cardiovascular health and digital health readiness among participants In Aim 1, participants will attend a series of focus groups to share their input on a digital health equity curriculum that will be condensed into a toolkit. In Aim 2, DHAs will be trained using this toolkit as well as a community health advocacy curriculum to learn how to promote digital health readiness and cardiovascular health in their communities. Finally, Aim 3 will be a randomized controlled trial where participants will use the FAITH! App to improve their cardiovascular health. Some participants will have the added support of a DHA, and the control group participants will use the app with no additional support to test whether the DHA support is associated with a more significant improvement in cardiovascular health. Read Less

The treatment of generalized anxiety disorder (GAD) in an accessible manner represents an unmet need for those with cardiovascular disease (CVD), given that patients with CVD experience numerous barriers for in-person treatment engagement. The research plan for the proposed pilot project will entail: (1) open study of the acceptability of the digital intervention (N=5), followed by (2) recruitment and randomization of 90 individuals with a history of acute CVD events and clinical levels of GAD symptoms to dCBT or a waitlist (Control) condition, using a 1.5:1 allocation (dCBT:Control). Read Less

This study will investigate the feasibility and effects of a smartphone-based mindfulness training program vs. usual care in a sample of stressed midlife and older adults at risk for cardiovascular disease. 105 participants will be randomly assigned to complete a four-week mindfulness training intervention, which involves 28 audio-guided lessons and practice prompts delivered 3x daily, or to continue with their regular routines. Data will be collected at baseline, post-intervention, and three-month follow-up. The study will involve seven laboratory visits, which will include assessments and training on daily life monitoring and intervention procedures. Data assessing subjective and physiological stress reactivity in daily life will be collected for 3 days at pre-intervention, post-intervention, and 3-month follow-up. Passive sensor data will be continuously collected from participants' smartphones and wearable devices to develop models that predict daily life stress. Data will be used to evaluate feasibility of the intervention and assessments in a sample at risk for cardiovascular disease and to test effects of mindfulness training on subjective and physiological stress reactivity. Read Less