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Find 333 clinical trials for heart disease near Los Angeles, California. Connect with research centers in your area.
Showing 81-100 of 333 trials
NCT04573660
The AV-MDR is a prospective, non-randomized, open-label, multi-center registry. The purpose of the AV-MDR study is to proactively collect and evaluate clinical data on the usage of the devices in scope within their intended use with the aim of confirming safety and performance throughout their expected lifetime, ensuring the continued acceptability of identified risks, detecting emerging risks on the basis of factual evidence, ensuring the continued acceptability of the benefit-risk ratio, and identifying possible systematic misuse or off-label usage such that the intended use can be verified as appropriate.
NCT04907526
Researchers want to better understand what happens to the heart when the autologous (from one's own body) stem cells are injected directly into muscle of the right side of the heart during the Fontan (Stage III) surgery. They want to see if there are changes in the electrical activity, the structure, and the function of the heart following this stem cell-based therapy. Researchers will compare the results from people who receive the stem cells to the results from people who do not receive the stem cells.
NCT03089398
The purpose of the study is to learn which treatment option is better for patients who have multi-vessel coronary artery disease (blockages in more than one vessel supplying blood to the heart muscle). The treatment options this study will compare are: (1) Hybrid Coronary Revascularization \[HCR\] (a combination of surgery and catheter procedures to open up clogged heart arteries) and (2) Percutaneous Coronary Intervention \[PCI\] (catheter procedures alone to open up clogged heart arteries). There are no new or "experimental" procedures being tested in this study: both HCR and PCI are well-established procedures and are regularly performed in patients who have coronary artery disease. But, the FDA has not approved the drug-eluting stents used in PCI for all types of coronary artery disease. We have received an Investigational Device Exemption from the FDA to use the drug-eluting stents in this trial in the same way that they are used in clinical practice. The study being proposed here will use rigorous scientific methods and should result in a very high level of certainty about which procedure is best for patients with coronary artery disease.
NCT05100836
A multi-center, prospective \& retrospective, observational single-arm study of the clinical outcomes up to one year collected from electronic health records of patients which have undergone standard of care implantation of Impella 5.5, regardless of clinical situation or indication. All patients will be enrolled via an IRB-approved Waiver of Informed Consent and HIPAA Authorization. All patients who were supported retrospectively (prior to site IRB approval) with Impella 5.5 at the investigative site will be entered into the SURPASS registry and specified as the retrospective cohort.
NCT04591392
Evaluation of the safety and efficacy of the reSept ASD Occluder to treat patients with clinically significant secundum atrial septal defect
NCT03153137
The primary objective is to assess the effect of macitentan 10 mg as compared to placebo on exercise capacity through cardiopulmonary exercise testing.
NCT04766892
This is a Phase 2a proof-of-concept study to assess safety, tolerability, and preliminary efficacy of mavacamten treatment on biomarker levels in participants with heart failure with preserved ejection fraction (HFpEF) and elevation of NT-proBNP with or without elevation of cTnT. Data from this study will inform future study designs of mavacamten in patients with HFpEF.
NCT04451044
Multi-center, prospective, randomized controlled study comparing PCI guided by angiography versus iFR Co-Registration using commercially available Philips pressure guidewires and the SyncVision co-registration system, employing an adaptive design study for interim sample size re-estimation.
NCT02991534
Cardiovascular (CV) disease is the number one cause of death in American women, and all adult women are potentially at risk for CV disease. There are clear gender differences in the control of CV risk factors such as lipids, blood pressure, and intermediate diabetes outcomes nationally and within the VA, with women Veterans often at higher CV risk than their male counterparts. The combination of disparities and gender-specific CV risk factors suggest an urgent need for CV risk factor management in women Veterans. As one project in the Enhancing Mental and Physical health of Women through Engagement and Retention (EMPOWER) QUERI, the objectives of "Facilitating Cardiovascular Risk Screening and Risk Reduction in Women Veterans" are to implement and evaluate a CV risk reduction toolkit (CV toolkit) designed to increase identification of CV risk among Women Veterans, enhance patient/provider communication about their risk, and increase Women Veterans' engagement and retention in relevant health services including referrals to key health programs (e.g., MOVE!, dieticians, health coaches, and CV specialists as needed). The initial CV Toolkit includes four components: (1) Patient education/activation tools including educational materials and a patient CV self-screener to help make CV risk discussion a priority for women before they enter the exam room; (2) A CV risk assessment computerized template to systematically capture CV disease risk factor history and data from the medical record and then facilitate referrals to Gateway to Healthy Living program and other CV risk reduction services/programs; (3) Provider information and education programs as well as referral tools to internal services; and (4) The Gateway to Healthy Living, a facilitated goal-setting group tailored for women Veterans. The goal is to implement the CV Toolkit at four VA facilities with comprehensive women's health clinics. The implementation of the CV Toolkit will be evaluated using a non-randomized stepped wedge design and will apply the evidence-based Replicating Effective Programs (REP) implementation strategy. For the nonrandomized stepped wedge design, each phase represents when one site moved from inactive to active implementation. It was pre-specified for the non-randomized design to evaluate the outcomes as the odds ratio of active intervention versus inactive for the overall study period and not by individual site/phase. This is a function of the use of the non-randomized design. Since the order of sites being introduced into the active intervention is not random, probabilistically the individual site results are not as meaningful here as they would be in a randomized stepped wedge design. Also, mixed methods implementation evaluations will focus on investigating primary implementation outcomes of adoption, acceptability, feasibility, and reach. Multilevel stakeholder engagement will be prioritized. Program-wide organizational-, provider-, and patient-level measures and tools will be utilized to enhance synergy, productivity, impact and facilitate spread.
NCT03153111
This is a study to evaluate whether macitentan is an effective and safe treatment for patients with heart failure with preserved ejection fraction (HFpEF) and pulmonary vascular disease. The primary objective is to evaluate whether macitentan 10 mg reduces N-terminal pro-brain natriuretic peptide (NT-pro-BNP) as compared to placebo in these patients.
NCT04610892
A Phase IIB Parallel group Study to Evaluate the Efficacy and Safety of MEDI6570 in Participants with a Prior Myocardial Infarction.
NCT04356027
The purpose of the FUSION study is to validate the diagnostic performance of Virtual Flow Reserve (VFR) by comparing it against a reference standard, fractional flow reserve (FFR).
NCT01426425
ICY-AVNRT (Intracardiac CrYoablation for AtrioVentricular Nodal Reentrant Tachycardia) is a prospective multi-center, nonrandomized, single arm, controlled, unblinded, investigational clinical study. The purpose of this clinical study is to demonstrate the safety and effectiveness of the Freezor® Xtra Cardiac CryoAblation Catheter for the cryoablation of the conducting tissues of the heart in the treatment of patients with atrioventricular nodal reentrant tachycardia (AVNRT) using an endocardial approach.
NCT03016754
This study is designed as a multi-center prospective observational study of newly diagnosed Heart Failure (HF) patients to test the hypothesis that additional Ejection Fraction (EF) recovery occurs between 90 and 180 days as Guideline Directed Medical Therapy (GDMT) is achieved. Although the study doesn't start until day 90, all eligible, consenting patients will be entered into a registry at the start of wearable cardioverter defibrillator (WCD) use. The pre-study registry will allow us to collect early (90 day) outcomes and data in those patients who are likely to be eligible for the study at day 90, or are eligible, but refuse the study at day 90.
NCT04089059
This is a prospective, open- label, single arm, multicenter clinical trial to evaluate the safety and effectiveness of the Cordella PA Sensor System in NYHA Class III Heart Failure Patients compared to a Performance Goal (PG).
NCT04141605
The primary objective of this study is to collect real-world clinical performance data to assess the clinical outcomes of patients receiving heart transplants using donor hearts transported via the SherpaPak CTS System. These results will be compared to outcomes of retrospective patients whose hearts were transported with the previous standard method.
NCT03533517
This is a non-randomized, prospective, multi-center Early Feasibility Study to evaluate the AccuCinch® Ventricular Restoration System in Patients with Heart Failure and Reduced Ejection Fraction (HFrEF).
NCT00853632
The purpose of the study is to demonstrate the long term safety and effectiveness of the Carpentier-Edwards® PERIMOUNT Magna Mitral Valves in patients undergoing mitral valve replacement with or without concomitant procedures requiring cardiopulmonary bypass.
NCT02806570
This is a multi-center, non-randomized, prospective Early Feasibility Study to evaluate the AccuCinch® Ventricular Restoration System in patients with symptomatic heart failure and concomitant functional mitral regurgitation that have stable symptoms on guideline-directed medical therapy
NCT02984124
This multicenter RCT of 200 hospitalized patients and their family members evaluates an "informed assent" approach to discussing cardiopulmonary resuscitation, compared to usual care, in older seriously ill hospitalized patients with severe life-limiting illness or severe functional impairment.
