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Coronary Disease clinical trials

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NCT ID: NCT05961163 Terminated - Stroke Clinical Trials

Chronical Illness-related Limitations of the Ability to Cope With Rising Temperatures: an Observational Study

CLIMATE
Start date: July 24, 2023
Phase:
Study type: Observational

The CLIMATE Observational Study examines to what extent chronically ill patients experience adverse health effects because of heat and whether the patients' specific efforts, somatosensory amplification, self-efficacy, health literacy and commitment to the GP, degree of urbanisation of the patients' administration district and characteristics of the patients' neighborhood are associated with these effects.

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)

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

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

DEBORA
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: NCT04679805 Terminated - Clinical trials for Coronary Artery Disease

Physio PCI: Impact of Coronary Angioplasty on Non-hyperaemic Pressure Ratio in Patients With Coronary Artery Disease

Start date: June 6, 2021
Phase:
Study type: Observational

The use of intra coronary physiological assessment with fractional flow reserve (FFR) is nowadays the standard approach to define ischemia-inducing stenosis and guide myocardial revascularization strategy in patients with coronary artery disease. Further, FFR has been shown to be a strong and independent predictor of major adverse cardiac events after stent implantation. A lower value of FFR after stent implantation is associated with a worse clinical prognosis, without a clearly defined threshold above which clinical follow up are similar for all FFR values. Among 750 patients in the Fractional Flow Reserve Post-Stent Registry, the event rate was 29.5% in patients with FFR<0.80 compared to 9 4.9% in patients with FFR>0.95 (p<0.001). However, FFR remains poorly adopted in many cathlabs, partly because of procedural time, discomfort or sides effect during hyperemia, non-uniform adenosine response and economical constraints. This leads to the validation of resting indices (instantaneous wave-free ratio (iFR), diastolic pressure ratio (dPR), and resting full-cycle ratio (RFR) among others). Those indices evaluate coronary physiology without the use of maximal hyperemia and have 15 slightly different threshold compared to FFR (≤0.89 vs 0.80, for iFR and RFR, and FFR 16 respectively).In the VALIDATE RFR study, a head-to-head comparison of RFR and iFR from a retrospective analysis, diagnostic accuracy of RFR was 97.4% with an area under the curve 1 (AUC) of 99.6%. In the more recent RE-VALIDATE RFR study, 431 patients with 501 lesions 2 were prospectively evaluated for the diagnostic performance of RFR in all-comers patients. Compared to iFR, RFR achieved high diagnostic accuracy, sensitivity and specificity. These are the reasons why we designed a prospective, non-randomized, clinical trial, to better 18 explore the value of RFR before and after PCI in real live and after optimization by post dilation 19 in all-comers patients with coronary artery disease in the Middle East region..

NCT ID: NCT04614467 Terminated - Clinical trials for Coronary Microvascular Disease

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

FREEDOM
Start date: October 29, 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: NCT04073134 Terminated - Clinical trials for Coronary Artery Disease

The CHORAL Flow Study

CHORAL
Start date: September 11, 2019
Phase: Phase 4
Study type: Interventional

CHORAL Flow is a randomised, double blinded, placebo-controlled trial of the effects of evolocumab on coronary flow at 12 weeks.

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

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

ACAC-CHD
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.

NCT ID: NCT03488654 Terminated - Clinical trials for Coronary Artery Disease

CMR-Lupus Comprehensive Approach by Cardiovascular Magnetic Resonance Tomography

Start date: July 2010
Phase:
Study type: Observational

In systemic lupus erythematosus (SLE), cardiac manifestations, e.g. coronary artery disease (CAD) and myocarditis are leading causes of morbidity and mortality. The prevalence of subclinical heart disease in SLE is unknown. We studied whether a comprehensive cardiovascular magnetic resonance (CMR) protocol may be useful for early diagnosis of heart disease in SLE patients without known CAD

NCT ID: NCT03326167 Terminated - Clinical trials for Coronary Heart Disease

Determination of Coronary Flow Reserve by Dynamic Myocardial Perfusion Scintigraphy

ERCAD
Start date: November 15, 2017
Phase:
Study type: Observational

Because of its availability, non-invasiveness, and high diagnostic performance, myocardial perfusion tomoscintigraphy has become a standard tool for the detection, characterization and monitoring of coronary artery disease. Standard analysis, based on the reversibility of regional myocardial hypoperfusion between stress (physiological or pharmacological) and rest, has good sensitivity and negative predictive value in the search for myocardial ischemia. However, two major obstacles persist. First, because of the relative nature of the normalization of cardiac activity, this approach may underestimate the extent of the damage, especially when the territory with the most activity is itself pathological. Thus myocardial perfusion scintigraphy can only detect 40 to 50% of tri-truncal patients. To overcome these disadvantages, several indexes have been proposed to improve the diagnostic performance of perfusion scintigraphy in multi-truncal patients based in particular on kinetic analysis. Secondly, the review does not provide any guarantee as to the quality and reproducibility of use of the coronal reserve during stress, in particular during submaximal stress tests and pharmacological stress, the latter being easily antagonized by xanthine derivatives contained in tea and coffee in particular (abstinence of at least 12 to 24 hours being recommended). In recent years and thanks to the advent of CZT semiconductor cameras dedicated to cardiology - to perform a dynamic tomographic acquisition - a study of the coronal reserve is feasible by perfusion tomoscintigraphy in current practice. This study of the coronary reserve mainly consists of a computer post-processing of the myocardial perfusion scintigraphy data and does not therefore require any additional irradiation (the only difference with respect to the old protocols is the start of the images at the time of publication. injection of the radiotracer). However, the diagnostic benefit gained from the coronary reserve study compared to conventional stress / rest perfusion scintigraphy has not been clearly studied, particularly in the multi-truncal patients.