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Showing 1-20 of 51 trials
NCT05509296
The objective of this study is to evaluate safety and effectiveness of the SINOMED CBC coronary dilatation catheter during PCI in subjects with stenotic coronary arteries.
NCT02100722
The purpose of this study is to determine whether Fractional flow reserve (FFR, (coronary pressure wire-based index for assessing the ischemic potential of a coronary lesion)-guided percutaneous coronary intervention (PCI) in patients with multivessel coronary artery disease (CAD) will result in similar outcomes to coronary artery bypass graft surgery (CABG).
NCT04475380
Drug eluting stents (DES) are widely used for treatment of coronary artery lesions. The Xience Sierra stent has a refined design of the metal stent backbone and is used in patients with various clinical syndromes and in different lesions. Clinical outcome of patients with previously unknown (silent) diabetes and prediabetes is of increasing interest since the latter group has recently shown to be associated with a significant risk of adverse cardiovascular events after treatment with contemporary DES. Outcome data in a population of high-risk all-comer patients, including many patients with diabetes mellitus and prediabetes, would be of great interest, but such data are not available yet. In addition, there is a lack of data in a general all-comer population. Therefore, the COASTLINE study will primarily assess the safety and efficacy of the Xience Sierra stent in a general all-comer population as well as a high-risk all-comer population.
NCT06535568
This international, multicenter, open-label, randomized clinical trial evaluates the safety and efficacy of single antiplatelet therapy (SAPT) compared to dual antiplatelet therapy (DAPT) in elderly or high bleeding risk patients undergoing percutaneous coronary intervention (PCI) with the latest generation drug-coated balloon (DCB). The study includes patients with stable or unstable coronary syndromes and aims to assess rates of ischemic and bleeding adverse events.
NCT06071702
This is a prospective, multi-center, single-arm, open-label, early feasibility study to provide preliminary evidence for the safety and efficacy of the novel IoNIR stent system
NCT03508219
The primary objective of this study is to study the safety and efficacy of the BiOSS LIM C with respect to Patient oriented Composite Endpoint (PoCE) at 12 months in a "real world" left-main bifurcation population and as compared with a prespecified performance goal.
NCT06980064
The goal of this randomized controlled trial is to evaluate the effectiveness of wearable devices (Huawei smartwatches) in aiding the detection, and screening of major diseases (e.g., coronary artery disease, hypertension) in middle-aged and elderly populations aged 40-69 years with cardiovascular risk factors (e.g., smoking, diabetes, hypertension, dyslipidemia). The main questions it aims to answer are: Does AI-assisted diagnosis using wearable device data improve the detection rate of coronary artery stenosis (CAD-RADS ≥3) compared to standard physician assessment without AI assistance? Does the intervention reduce the incidence of coronary artery disease-related events (e.g., angina, myocardial infarction) within one year? Researchers will compare the intervention group (AI model-assisted diagnosis based on Huawei smartwatch data) with the control group (standard assessment) to determine if the AI-aided smartwatch approach enhances diagnostic accuracy and clinical outcomes. Participants will: （Intervention group）Wear a Huawei smartwatch for 24 hours to collect physiological data (e.g., PPG signals, heart rate, motion). Undergo baseline assessments, including medical history review, physical exams, and laboratory tests. Receive a preliminary diagnosis from a general practitioner. Complete a follow-up evaluation after one year to track cardiovascular events and other disease outcomes. Undergo coronary CTA if suspected of coronary stenosis.
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).
NCT02927990
The new software package is intended to assist the physician in imaging the coronaries during percutaneous coronary interventions. This study investigates the amount of contrast used during percutaneous coronary interventions with the aid of the new software package. The results of the study will be compared with control group data (before the new software package was installed or after it was removed) to define a possible contrast reduction.
NCT04761939
Device: EluNIR Ridaforolimus Eluting Coronary Stent System - (hereafter referred to as EluNIR) 2.25 mm diameter (8 mm, 12 mm, 15 mm, 17 mm, 20 mm, 24 mm, 28 mm and 33 mm length) Objectives: To further assess the safety and efficacy of the small diameter (2.25 mm) Ridaforolimus Eluting Stent - EluNIR. Subject Population: Subjects who underwent PCI for angina (stable or unstable), silent ischemia (in absence of symptoms a visually estimated target lesion diameter stenosis of ≥70%, a positive non-invasive stress test, or FFR ≤0.80 must be present), NSTEMI, and recent STEMI (\>24 hours from initial presentation and stable) with attempted implantation of a 2.25 mm diameter EluNIR stent. Trial Design and Methods: This is a prospective, multi-center, single-arm, open-label clinical trial. Clinical follow-up for all patients will be performed at 30 days 6 months, and 1 year after the procedure.
NCT05846893
Prospective, randomised, open-label, international multicenter trial to evaluate the safety and efficacy of drug-coated balloon (DCB) treatment compared to drug-eluting stenting (DES) in patients with large coronary artery disease.
NCT03507777
The objective of this prospective, single-blind clinical investigation is to demonstrate the superiority of an Optical Coherence Tomography (OCT)-guided stent implantation strategy as compared to an angiography-guided stent implantation strategy in achieving larger post-PCI lumen dimensions and improving clinical cardiovascular outcomes in patients with high-risk clinical characteristics and/or with high-risk angiographic lesions.
NCT06420505
The rationale for this observatory is to evaluate clinical outcomes and collect data of the Polymer Free Sirolimus Eluting Coronary Stent System in Real World CAD Patients with follow-up at 12 months. All medications and procedures to be used/ performed in this observatory are commonly used/performed for clinical indications as part of standard of care and have well-defined safety profiles.
NCT04284345
The presence of inducible myocardial ischemia is considered as the prerequisite for the clinical benefit of coronary revascularization. In this regard, the introduction of invasive pressure-derived physiological indices to guide myocardial revascularization represented a major breakthrough for the treatment of patients with coronary artery disease (CAD), by moving the focus of coronary revascularization from anatomy to physiology . The main premise of coronary physiology is to permit determination of the functional significance of individual stenoses on a per-vessel basis, measurable at the time of clinical decision-making process, thus providing an objective marker to identify ischemic lesions, and therefore patients, most likely to benefit from coronary revascularization . Fractional flow reserve (FFR) is the most widely used pressure-derived invasive physiological index for coronary lesion assessment in contemporary clinical practice. FFR is calculated as the ratio of the mean distal coronary pressure (Pd) to the mean proximal coronary pressure (Pa) across a stenosis during maximal hyperaemia, a condition that is commonly achieved by the intracoronary or intravenous administration of a potent vasodilator agent, such as adenosine. Based on the results of landmark clinical trials, most recent guidelines recommend the use of FFR to identify hemodynamically significant coronary lesions in patients with stable CAD. Despite this, the worldwide adoption of FFR into current clinical practice remains limited , accounting for only 9.8% of coronary procedures in Switzerland . Potential reasons for the low adoption rate of coronary physiology include technical challenges and time consumption related to FFR measurements, inadequate or lack of reimbursement, physician preferences, patient-related discomfort, contraindications and costs associated with adenosine, or in certain countries, no availability of adenosine. The low use of FFR in clinical practice provided a rationale for the development of new invasive physiology indices. By negating the need for administration of pharmacologic agents such as adenosine, saving time, and reducing costs and side effects, hyperaemia-free pressure-derived physiological indices were developed to increase adoption of physiology-guided coronary revascularization into routine clinical practice.
NCT06252350
The primary objective of this study is to determine whether a reduced radiation protocol (RRP) in which angiograms are acquired at ultralow radiation doses and then processed using spatiotemporal enhancement software can produce similar quality angiographic images as compared with standard techniques.
NCT04985773
The objective of this study is to evaluate safety and effectiveness of the Lacrosse NSE ALPHA coronary dilatation catheter during PCI in subjects with stenotic coronary arteries.
NCT04014140
The expected outcome of better and improved patency of bypass grafts and its direct relation to pre-operative iFR measurements of stenosis as compared to direct visual physiology of stenosis in the coronary angiogram. To establish the correlation between the use of intracoronary physiology and improved graft patency at 12 months for patients undergoing CABG surgery. It is a minimum of 28 and a maximum of 100 patients single-centre proof or concept/ observational study/ pilot study.
NCT04951050
The aim of the TARGET PREMIER trail in to demonstrate the safety and efficacy of the rapamycin target eluting stent in the treatment of subjects with ischemic heart disease (asymptomatic myocardial ischemia , table or unstable angina), with target lesion(s) in coronary arteries with visually estimated reference vessel diameter ≥2.25mm and ≤4.0 mm.
NCT05810610
The goal of this Category 3 research involving the human person is to predict the measurement of the post-stenosis flow (FFR) using CTTA coupled with an intelligent predictive analysis system and comparing it with invasive coronary angiography FFR as measurement of reference. The population studied are adult patients,- with no diagnosed coronary status or history of stenting or bypass surgery- with indication for FFR measurement. The main question it aims to answer is: • Can, in a single acquisition, CTTA coupled with AI produce good predictive performance of stenosis and FFR ? If it can it will allow us to avoid the need for invasive FFR. For patients who will be included in the retrospective part: only their data from their medical records will be used. Patients who will be included in the prospective part will additionally complete the EQ5D5L questionnaire before coronary angiography and at the end of the patient's participation (4 months after the CCTA). There is a no comparison group, the predictive FFR from CTTA of a patient will be compared with angiography FFR from the same patient, same vessel.
NCT03820492
Significant left main (LM) stenosis is associated with a poor prognosis, therefore, adequate judgement of the prognostic significance of LM stenosis is essential to improve patients' prognosis. Recently, fractional flow reserve (FFR) has become widespread practice and carries a Class Ia recommendation to assess functional significance of intermediate coronary stenosis in patients with stable angina. Intravascular ultrasound (IVUS)-derived minimum lumen area (MLA) represents an accurate measure to determine LM significance as shown in multiple studies, while optical coherence tomography (OCT) ,which is a novel intracoronary imaging method with a greater spatial resolution (15μm vs. 100μm), faster image acquisition and facilitated image interpretation, OCT derived-MLA has never been validated against FFR and accordingly, it is not mentioned in the current guidelines for myocardial revascularization. Coronary computed tomography angiography (CTA) has emerged as a noninvasive alternative of coronary angiography with its excellent negative predictive value, while the positive predictive value of CTA is limited. Computational fluid dynamics is an emerging method that enables prediction of blood flow in coronary arteries and calculation of FFR from computed tomography (FFRCT) noninvasively. Noninvasive and accurate assessment of functional significance would bring a great benefit for patients with LM stenosis, however, there are no data to evaluate the diagnostic accuracy of FFRCT for LM stenosis in comparison with FFR and minimal lumen area derived by OCT. This study will investigate the optimal OCT-derived MLA cut-off point and the diagnostic performance of FFRCT for intermediate LM stenosis compared with FFR ≤0.8 as a reference standard.