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Coronary Artery Disease clinical trials

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NCT ID: NCT05315908 Terminated - Obesity Clinical Trials

COVID-19 Testing in Underserved and Vulnerable Populations

Start date: November 1, 2020
Phase: N/A
Study type: Interventional

As part of National Institutes of Health Rapid Acceleration of Diagnostics-Underserved Populations (RADx-UP) program, the goal of the RADxUP study is to develop, test, and evaluate a rapid, scalable capacity building project to enhance COVID-19 testing in three regional community health centers (CHCs) in San Diego County, California. In collaboration with CHC partners, their consortium organization, Health Quality Partners (HQP), investigators are pursuing the following Specific Aims: 1) Compare the effectiveness of automated calls vs text messaging for uptake of COVID-19 testing among asymptomatic adult patients with select medical conditions and those 65 years of age and older receiving care at participating CHCs. Secondarily, investigators will invite all study participants to receive flu vaccination and will assess feasibility and acceptability of study participants to refer adult family household members who are essential workers for COVID-19 testing. 2) Gather patient, provider, CHC leadership, and community stakeholder insights to establish best practices for future scale-up of COVID-19 testing sustainability and vaccination.

NCT ID: NCT04885816 Terminated - Clinical trials for Coronary Artery Disease (CAD)

Drug-eluting Balloon Versus Drug-eluting Stent for High Bleeding Risk Angioplasty

Start date: April 20, 2021
Phase: N/A
Study type: Interventional

Randomized, single-blind, single-center, non-inferiority clinical trial to compare target lesion failure (TLF) at 12 months in high bleeding risk patients undergoing elective coronary percutaneous intervention comparing limus-eluting balloon vs. limus-eluting stents.

NCT ID: NCT04321434 Terminated - Clinical trials for Ischemic Heart Disease

Hyperoxia and Microvascular Dysfunction

Start date: December 1, 2016
Phase: N/A
Study type: Interventional

Coronary artery disease (CAD) pathophysiology involves endothelium-dependent (e.g. nitric oxide, acetylcholine) and -independent (e.g. adenosine) vascular dilation impairment, which have been demonstrated at the level of small coronary arteries, medium sized peripheral arteries and subcutaneous microcirculation. Oxygen supplementation, which is frequently overused in clinical settings, seems harmful in acute coronary syndromes and increases microvascular resistance in myocardial and subcutaneous microcirculation through alteration of endothelium-dependent and -independent dilation by an oxidative mechanism. Whether endothelial dysfunction, that is well documented at the level of cardiac microcirculation in CAD patients, is also present at the level of subcutaneous microcirculation is unknown. Also, unknown is whether an acute oxidative stress can be used to probe myocardial microcirculatory dysfunction at the level of subcutaneous microcirculation, which is an easily accessible vascular bed for an in vivo assessment of endothelial-dependent and-independent function. Alterations in cutaneous vascular signalling are evident early in the disease processes. Thus, studying subcutaneous circulation in patients with cardiovascular risk factors could provide vascular information early in CAD processes. This study will test the following 4 hypotheses: 1. Endothelial dysfunction observed at the level of microvascular cardiac arteries is readily present at the level of subcutaneous microcirculation in a given CAD patient. 2. An acute oxidative stress such as hyperoxia can be used to test myocardial microcirculatory dysfunction at the level of the more easily accessible subcutaneous microcirculation. 3. Subcutaneous microcirculation of CAD patients has a lesser vasodilatory response to acetylcholine or sodium nipride than matched healthy subjects. In addition, CAD patients are more prone to dermal vasoconstriction in response to oxygen compared to healthy subjects. 4. Taken that oxygen is still too often given in excess in most clinical settings, the aim of this study is to rule out possible pitfalls in coronary pressure and resistance determinations in CAD patients receiving unnecessary oxygen supplementation.

NCT ID: NCT04252703 Terminated - Clinical trials for Cardiovascular Diseases

'MInimalist' or 'MOre Complete' Strategies for Revascularization in Octogenarians

Start date: May 13, 2020
Phase: N/A
Study type: Interventional

Older patients with co-morbidity are increasingly represented in interventional cardiology practice. They have been historically excluded from studies regarding the optimal management of NSTEACS. Though there are associated risks with invasive treatment, such patients likely derive the greatest absolute benefit from PCI. Small, though highly selective, studies suggest a routine invasive strategy may reduce the risk of recurrent myocardial infarction. The study aims to include, as far as possible, an 'all-comers' population of patients aged 80 and above to define the optimum amount of revascularization required to achieve good outcomes and satisfactory symptom relief for this challenging cohort of patients.

NCT ID: NCT04044391 Terminated - Clinical trials for Acute Coronary Syndrome

Use of Magnetocardiography in Evaluation of Patients Going for Cardiac Catheterization

Start date: May 15, 2019
Study type: Observational

This is a multicenter, prospective trial to measure the test performance characteristics of the Magnetocardiography (MCG) CardioFlux cardiac diagnostic system in detecting clinically significant coronary artery obstruction in patients with symptoms of suspected acute coronary syndrome or who present with a failed stress test with the intention of treat with cardiac catheterization.

NCT ID: NCT04043377 Terminated - Clinical trials for Coronary Arteriosclerosis

68Ga-DOTATATE PET-CTA Imaging for the Early Detection of Progressing Coronary Atherosclerosis

Start date: November 21, 2019
Phase: Phase 3
Study type: Interventional

68Ga-DOTATATE is a PET radiotracer with high affinity and selectivity for somatostatin receptor 2 (SSTR 2) and is approved clinically for the evaluation of patients with neuroendocrine tumors. The SSTR2 receptor is also highly expressed at the surface of human macrophages and lymphocytes. In comparison to FDG, 68Ga-DOTATATE presents the advantage of fast clearance from tissues, which are not expressing somatostatin receptors, in particular muscular and myocardial tissues, and the level of blood glucose does not influence its uptake. Accumulation of 68Ga-DOTATATE has already been detected in coronary and carotid plaques and is associated with the number of activated macrophages present in plaques obtained after carotid endarterectomy. In a recent study, Tarkin et al. confirmed the preferential uptake of 68Ga-DOTATATE by macrophages in atherosclerotic plaques. In addition, the intensity of 68Ga-DOTATATE was higher in culprit lesions in the carotid and coronary arteries than in stable lesions. The evaluation of 68Ga-DOTATATE uptake in coronary arteries was also strongly facilitated in comparison to FDG thanks to the absence of spillover signal from the myocardium. AAA has developed a new kit that has markedly simplified the synthesis of 68Ga-DOTATATE and has obtained in the US marketing authorization for the kit (Netspot; kit for the preparation of Gallium-68-DOTATATE injection for intravenous use) on June 1st 2016 (NDA 208547) for evaluation of patients with neuro-endocrine tumors. The Netspot kit will be used in this study for the detection of progressing coronary atherosclerosis.

NCT ID: NCT03925324 Terminated - Clinical trials for Ischemic Heart Disease

Serial Infusions of Allogeneic Mesenchymal Stem Cells in Cardiomyopathy Patients With Left Ventricular Assist Device

Start date: May 3, 2019
Phase: Phase 2
Study type: Interventional

A study to assess the safety and preliminary efficacy of serial intravenous dose of Allogeneic Mesenchymal Bone Marrow Cells in subjects with heart failure and implanted left ventricular assist devices.

NCT ID: NCT03709693 Terminated - Clinical trials for Coronary Artery Disease

Clinical Outcomes in Patients Treated With SternaLock Blu

Start date: May 14, 2019
Study type: Observational [Patient Registry]

The primary objective of this study is to evaluate the rate of deep sternal wound infection at 30 days post-operative following a full median sternotomy in patients treated with SternaLock Blu for rigid sternal fixation. This study will also provide evidence of the clinical performance of SternaLock Blu for up to 90 days using real world evidence methodology. Sternal complications will be reported through 90 days follow up.

NCT ID: NCT03660657 Terminated - Clinical trials for Ischemic Heart Disease

Ozone Therapy in Refractory Ischemic Heart Disease.

Start date: February 26, 2020
Phase: Phase 2/Phase 3
Study type: Interventional

The main objective of this clinical trial is to evaluate the effectiveness and cost-effectiveness of adding ozone therapy to standard management of patients with advanced ischemic heart disease refractory to medical and surgical treatment.

NCT ID: NCT03618108 Terminated - Clinical trials for Coronary Heart Disease

Anti-chlamydophila Antibiotic Combination Therapy in the Treatment of Patients With Coronary Heart Disease

Start date: April 4, 2018
Phase: Phase 2
Study type: Interventional

The purpose of the study is to see whether the antibiotic combination of 100mg doxycycline, 500mg azithromycin and 300mg rifabutin is a safe and effective treatment for coronary artery disease which has not responded to 'standard treatment'. Coronary artery disease is the process of plaque build up within the walls of the arteries responsible for supplying the heart with oxygen and nutrients. plaque is usually made up of fatty deposits, minerals and various amounts of tissue and white cells which eventually narrows the artery, reducing blood flow to the heart. The resulting damage and build up of fat leads to inflammation of the arterial wall and eventually the arteries narrow. The researchers involved in this study consider that a pathogen called Chlamydophila pneumoniae, which can live inside cells may cause this inflammation of the arterial wall. The purpose of this study is to see if treatment with this antibiotic combination in patients with CHD is safe and effective in reducing disease severity measured at coronary angiography and improving quality of life. Approximately 60 patients will be involved in this trial. the treatment period is 90 days with a further 90 day follow up period.