Heart Diseases Clinical Trials

Obtain blood samples for generation and maintenance of induced pluripotent stem cells (iPSCs) and genomic/DNA sequencing for biomedical research that will improve the understanding and treatment of pediatric cardiovascular disease Read Less

A single arm clinical trial evaluating the safety and efficacy of the second generation TEVG as vascular conduits for extracardiac total cavopulmonary connection. Read Less

This randomized controlled trial will evaluate whether use of the PulsePoint system increases bystander CPR or defibrillator use compared to standard dispatch procedures in patients who suffer non-traumatic, out-of-hospital cardiac arrest in a public location. Half of all suspected cardiac arrest 9-1-1 calls in a public location will receive PulsePoint alerts (treatment arm). The other half of this eligible patient cohort will receive standard dispatch procedures (control arm). Read Less

This is a Phase 2, multicenter, double-blind, sponsor unblinded, placebo-controlled, single-dose clinical study of CRD-4730 to evaluate the safety, tolerability, pharmacokinetics (PK), and pharmacodynamics (PD) of CRD-4730 when administered as single oral doses to participants with Catecholaminergic Polymorphic Ventricular Tachycardia (CPVT). The study will have 2 cohorts in which participants with CPVT will participate in a 3-period, randomized 2-sequence study. Each participant will receive 2 different doses of CRD-4730 and 1 dose of matching placebo, with each study drug administered as a single dose. Read Less

Many conditions affecting health are caused by a combination of environment, behaviors, and genes. While individuals can alter some factors in their lives to reduce the chances of developing different diseases (e.g., not smoking cigarettes), the contribution from genetic risk encoded by DNA remains with people throughout their lives. Scientists are still trying to determine the entirety of genetic factors that influence disease, but for some conditions it has been shown that the factors identified thus far can begin to identify people at high to low genetic risk. Looking across the genome, scientists can calculate a cumulative genetic risk score - which can be used to rank genetic risk compared to other worldwide populations. The goal of this study is to determine how genetic risk influences health decisions and other things that can be controlled in life. The first genetic risk score is calculated for coronary heart disease (CAD). CAD ultimately leads to heart attacks, heart failure and sometimes sudden cardiac death and is the main reason heart disease remains as the number one cause of death worldwide. Other researchers have shown that this genetic risk score can be used to identify people with low, intermediate, and high risk for coronary heart disease. It has also been shown that the use of statins (cholesterol lowering drugs) provides greater benefit and protection against heart attack for people with high genetic risk for coronary artery disease. Leveraging the Apple ResearchKit and the ResearchKit linked 23andMe API, customers of 23andMe are able to provide researchers access to their genomic data. Participants will use the ResearchKit app to provide consent, view study information, answer surveys, and contact the study team. Participants will be asked to complete 3 surveys. One before viewing genetic risk scores, one immediately after viewing scores, and one 6 months after viewing scores. Read Less

Safety and performance evaluation of the preCARDIA System for patients with ADHF. Read Less

This single-arm trial of the Cardiovascular Risk Reduction Among People Experiencing Homelessness (CV-Homes) intervention alone (n=8) will test the perception and feasibility of anticipated study procedures. Read Less

The University of Texas Health Science Center at San Antonio (UTHSCSA) will serve as the site for the RURAL Study Coordinating Center, led by PI Vasan Ramachandran, MD. The primary function of the Study Coordinating Center (SCC) is to serve as an administrative liaison between all of the RURAL study's cores. The SCC schedules, facilitates, and hosts, all RURAL meetings including preparation for Observational Study Monitoring Board (OSMB) meetings, and maintains direct communication with the study's program officers at NHLBI. The SCC monitors the overall progress of RURAL and keeps all RURAL cores abreast of study updates through meetings, emails, newsletters. It also maintains the official RURAL website and serves as an administrator for investigators seeking to collaborate with RURAL through the submission of Ancillary Studies. The SCC will have no direct interaction with any participants, nor will it have access to identifiable data. Read Less

The purpose of this study is to test a culturally tailored, smartphone-delivered intervention designed to increase physical activity and reduce risk for heart disease and type 2 diabetes among African American women. Read Less

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: Discover new genes or altered genes (variants) which cause AVC Identify biomarkers which predict (2a) disease onset, (2b) disease progression, (2c) and the likelihood of arrhythmia (ventricular, supra-ventricular and atrial fibrillation) Correlate genotype with phenotype in confirmed cases of AVC followed longitudinally using clinical, electrocardiographic and imaging data. Characterize desmosomal changes in buccal mucosal cells with genotype and validate with gold-standard endomyocardial biopsies Read Less

The study team will generate preliminary data on whether patients with cardiac amyloidosis feel better when their beta-blocker is stopped. To achieve this objective, 20 N-of-1 trials (on vs. off) will be conducted, and the study team will subsequently interview participants to better understand their outcomes. Each subject will participate in 2 periods lasting between up to 6 weeks each based on each patient's health profile. We will also engage stakeholders to understand the acceptability and feasibility of deprescribing N-of-1 trials. The N-of-1 trials will be iteratively refined in real-time based on feedback. Read Less

Investigators will determine whether N-of-1 trials, as a pragmatic, patient-centered approach to medication optimization that can overcome key barriers of deprescribing, can lead to increased subject confidence regarding the decision to continue or discontinue beta-blockers in older adults with Heart Failure with Preserved Ejection Fraction (HFpEF). Read Less