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Coronary Artery Disease clinical trials

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NCT ID: NCT05508893 Terminated - Clinical trials for Coronary Artery Disease (CAD)

Screening for Coronary Artery Disease USing Primary Evaluation With Coronary CTA in Aviation Medicine (SUSPECT)

Start date: November 17, 2014
Phase: N/A
Study type: Interventional

SUSPECT is a prospective, single-center, cohort study of 250 military aircrew at the Center for Man in Aviation, Royal Netherlands Air Force. All asymptomatic aircrew (≥40 years) are asked to undergo a coronary CT scan on a voluntary basis, following the exercise electrocardiograms performed at their routine aeromedical examination. Coronary Artery Calcium score (CACS) and CCTA findings are reported.

NCT ID: NCT05325112 Terminated - Clinical trials for Coronary Artery Disease

Assessing Diagnostic Value of Non-invasive FFR-CT (Fractional Flow Reserve - Computed Tomography) in Coronary Care in the Emergency Department

Start date: July 15, 2022
Study type: Observational

This is a prospective multi-center study. All clinically stable, symptomatic patients who present to the emergency department (ED) or observation unit with suspected coronary artery disease (CAD) and who have at least one ≥40% lesion and no lesion >90% confirmed by CCTA (Coronary Computed Tomography Angiogram) are eligible for enrollment once their CCTA has been completed and their FFR-CT (if applicable) has been ordered. All enrolling sites will have CCTA incorporated into their standard evaluation of chest pain in the ED/observation unit. Non-control sites will have CCTA and FFR-CT analysis incorporated into their standard evaluation of chest pain in the ED/observation unit.

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: NCT05018247 Terminated - Clinical trials for Ischemic Heart Disease

Early Revascularization in Stable Ischemic Heart Disease Using P.E.T. Imaging

Start date: May 4, 2021
Phase: N/A
Study type: Interventional

To compare the impact of revascularization and Optimal Medical Treatment (OMT) on the extent of severely reduced coronary flow capacity in stable ischemic heart disease.

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: NCT04614467 Terminated - Clinical trials for Coronary Microvascular Disease

A Placebo-Controlled Trial of CLBS16 in Subjects With Coronary Microvascular Dysfunction

Start date: October 28, 2020
Phase: Phase 2
Study type: Interventional

This clinical trial will explore the efficacy and safety of GCSF-mobilized autologous CD34+ cells for the treatment of CMD in adults currently experiencing angina and with no obstructive coronary artery disease. Eligible subjects will receive a single administration of CLBS16 or placebo.

NCT ID: NCT04330079 Terminated - Clinical trials for Coronary Artery Disease

Effects of dapaglifloziN Therapy on Myocardial Perfusion Reserve in Prediabetic Patients With Stable coronarY Artery Disease

Start date: May 21, 2020
Phase: Phase 4
Study type: Interventional

The purpose of this study is to investigate the effects of dapagliflozin therapy on myocardial perfusion reserve (MPR) using dynamic SPECT examination in prediabetic patients with stable CAD. Dapagliflozin therapy versus lifestyle modification improves myocardial perfusion reserve in prediabetic patients with stable CAD.

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.