80 Clinical Trials for Various Conditions
* The purpose of this study is to determine the level of inhibition of platelet activation of an approved thienopyridine(clopidogrel or prasugrel) and aspirin regimen in the setting of drug eluting coronary stent implantation. * In subjects with high residual levels of platelet reactivity after receiving either a maintenance or loading dose of either clopidogrel or prasugrel, a cross over of thienopyridine treatment to the alternate medication will occur. * The study tests the hypothesis that adequate platelet inhibition will occur in subjects who have high levels of platelet reactivity and are subsequently switched from clopidogrel to prasugrel(loading or maintenance dose) without increased episodes of bleeding or MACE events at discharge and 30 days post Percutaneous Coronary Intervention (PCI).
A prospective, single-arm, multi-center Coronary IVL IDE Study with 47 US sites
To evaluate cardio-renal and overall safety profile of GE 145 320 mg I/ml Injection when compared to iopamidol 370 mg I/mL. The study will focus on elderly subjects with either chronic renal insufficiency, or diabetes mellitus (DM) requiring drug therapy, or congestive heart failure (CHF) NYHA Class III or greater, who are referred for a coronary catheterization procedure with or without PCI.
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.
The purpose of this study is to assess the the 1-year rates of ischemic and bleeding complications in patients whose dual antiplatelet therapy regimen post-PCI has been determined with the use of a clinical algorithm that includes both clinical risks and platelet reactivity while on chronic clopidogrel therapy.
This study will evaluate the efficacy of ranolazine as compared with placebo when used as part of standard medical therapy in chronic angina subjects with incomplete revascularization post-percutaneous coronary intervention (PCI; formerly known as angioplasty with stent) on the composite of ischemia-driven revascularization or ischemia-driven hospitalization without revascularization.
This study will assess relationship between ischemic time and the extent of myocardial infarction with cardiac magnetic resonance image in patients with STEMI (ST elevation myocardial infarction) and primary percutaneous coronary intervention.
The study investigates the safety and efficacy of PMX-60056 for the Reversal of Heparin in Patients Undergoing Percutaneous Coronary Intervention (PCI)
The objective of this study is to evaluate the safety and effectiveness of the clinical and technical performance of the CorPath® 200 System in the delivery and manipulation of coronary guidewires and stent/balloon systems for use in percutaneous coronary interventions (PCI).
The purpose of this study is to examine the use of a home-based program to improve weight reduction after percutaneous coronary intervention (PCI) (either a cardiac stent or angioplasty procedure).
The study is designed to compare the efficacy and safety profile of cangrelor to standard of care in patients require percutaneous coronary intervention (PCI).
This is an international, randomized, controlled, parallel group study in which patients with ST-Segment Elevation Myocardial Infarction (STEMI) will be allocated to one of the following: Manual aspiration thrombectomy with Percutaneous Coronary Intervention (PCI) or PCI alone.
The overall purpose of the FAME II trial is to compare the clinical outcomes, safety and cost-effectiveness of FFR-guided PCI plus optimal medical treatment (OMT) versus OMT alone in patients with stable coronary artery disease.
The primary objective of the trial is to compare the acute safety and long term outcomes between hospitals with cardiac surgery on-site (SOS hospitals) and hospitals without cardiac surgery on-site (non-SOS hospitals) for patients with ischemic heart disease treated with elective percutaneous coronary intervention (PCI) (stable angina, acute coronary syndrome, or non-Q wave MI) presenting to non-SOS hospitals.
The objective of this study is to evaluate if aggressive antiplatelet therapy would reduce ischemic events in aspirin (ASA) resistant patients after percutaneous coronary intervention (PCI).
This research study plans to evaluate the use of atorvastatin in patients with coronary artery disease given immediately before PCI and whether it will decrease the amount of heart damage after PCI.
To show whether addition of thrombolytic treatment by a single bolus injection of tenecteplase prior to early standard PCI (percutaneous coronary intervention) will improve the clinical outcome in patients with large acute myocardial infarcts as compared to primary PCI alone.
The purpose of this research study is to obtain experience in the use of fondaparinux (Arixtra) as compared to heparin when administered to patients who undergo percutaneous coronary intervention (PCI). PCI is a mechanical procedure used to widen the narrowing in a coronary artery in patients with symptomatic coronary artery disease. Fondaparinux and heparin are drugs that inhibit blood clotting.
The purpose of this study is to evaluate the effects of a drug known as CS-747 (also known as prasugrel) on subjects having a procedure called a percutaneous coronary intervention (also referred to as PCI) in which a doctor will attempt to open a blocked vessel (or vessels) in the heart using a catheter (a long thin tube) that has a small balloon on the end. In many cases, patients who have this procedure receive a stent, a small wire spring that helps keep the vessel open.
Using individualized patient estimates of procedural risks and benefits, this project will transform the process of informed consent for coronary angioplasty into a dynamic educational tool for patients and physicians and is a direct response to the Institute of Medicine's call for a more evidence-based, efficient, patient-centered healthcare system. It is hypothesized that patients will develop a greater understanding of their individual risks and benefits from PCI, will be empowered to more actively engage in shared decision-making, as well as have improved awareness of their responsibility to adhere to dual anti-platelet therapy if treated with a drug eluting stent (risks for target vessel revascularization with bare metal and drug eluting stents are also provided in the new consent form). It is also anticipated that physicians, in turn, will use these individualized estimates to better discriminate between risks and benefits among different bleeding avoidance therapies so as to improve the safety and cost-effectiveness of PCI.
The study is proposed as a 48-patient randomized-controlled pilot study that will use Optical Coherence Tomography (OCT) imaging to compare stent strut coverage and malapposition of three second-generation Drug Eluting Stents (DES) \[Xience EES (Abbott Vascular, Santa Clara, CA), Resolute Integrity ZES (Medtronic, Minneapolis, MN) and Promus Element EES (Boston Scientific, Natick, MA)\] at 6 weeks post implantation. Study Hypothesis is that the rates of stent strut coverage and malapposition of the Xience EES, Promus EES and will be similar to each other and improved (higher rates of stent strut coverage and lower rates of malapposition) compared to the Resolute ZES at 6 weeks post-implantation.
The purpose of this study is to compare the pharmacodynamic effects of ABCD-GENE guided vs. unguided de-escalation strategies among patients on dual antiplatelet therapy (DAPT) following percutaneous coronary intervention (PCI).
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).
The study aims to determine the feasibility and clinical utility of incorporating precision medicine approaches, incorporating both cytochrome P450 2C19 (CYP2C19) genotyping and platelet reactivity phenotyping, with standard of care for patients with acute coronary syndromes (ACS), post PCI.
The XIENCE 28 USA Study is prospective, single arm, multi-center, open label, non-randomized trial to evaluate safety of 1-month (as short as 28 days) dual antiplatelet therapy (DAPT) in subjects at high risk of bleeding (HBR) undergoing percutaneous coronary intervention (PCI) with the approved XIENCE family (XIENCE Xpedition Everolimus Eluting Coronary Stent System \[EECSS\], XIENCE Alpine EECSS and XIENCE Sierra EECSS) of coronary drug-eluting stents.
Contrast agent is typically used during routine cardiac intervention in order to enhance the imaging necessary to perform the procedure. Using this contrast agent could lead to kidney injury, called contrast induced nephropathy (CIN). Currently, the methods used to reduce the risk of CIN include reducing the amount of contrast agent used and using a hydration strategy during procedure. A computer-based risk tool has been developed which reports a risk score for the likelihood a person undergoing cardiac intervention gets CIN and a proposed corresponding hydration strategy to reduce the risk of CIN. The purpose of this study is to determine whether the rate of CIN decreases when the treating physician has access to this risk tool during the procedure.
Acute coronary syndrome is defined as myocardial infarction or ischemia as evidenced by significant coronary artery disease on cardiac catheterization/revascularization or reversible defect seen on stress test. Each year approximately 8-10 million patients undergo an emergency department evaluation for possible acute coronary syndrome (ACS) in the United States Up to 8%of patients who have myocardial infarction (MI) are inadvertently discharged. Unnecessary admissions for presumed myocardial disease result in health care costs that are estimated to exceed 5 billion dollars annually Currently, the cardiac biomarkers troponin and Creatine phosphokinase (CPK-MB), in conjunction with ECG changes are used to evaluate a patient routinely for ACS. However, these tests have limitations for identifying most patients who have ACS in a rapid fashion. Purine molecules such as inosine and hypoxanthine and have been shown to also be biomarkers of acute MI. High pressure liquid chromatography (HPLC) is the traditional method of analysis of these purines. The HPLC method however requires hours to assess biomarkers, as do the more traditionally used troponin and CK-MB methods. Recently, the investigator has developed a rapid chemo luminescence method for detecting purine biomarkers. This modality can provide an expeditious (requires less than 4 minutes to complete analysis), bedside method of analysis for ACS through routinely acquired blood samples. In this study the investigator will compare the results of the chemo luminescence method with the gold standard HPLC method, and results of the traditional cardiac markers troponin and Creatine phosphokinase (CK-MB) in patients undergoing an evaluation for ACS. Details of noninvasive and invasive cardiac assessments performed as part of the routine evaluation by the clinician for myocardial assessment and intervention in conjunction with biomarker assessment will be obtained. The investigator hypothesize that the rapid chemo luminescence biomarker assessment will identify patients with ACS faster than traditional diagnostic methods. The goal of this study is to assess the role of rapid assessment of purine biomarkers in identifying patients who may have ACS.
Prospective, multi-center, non-randomized, single-arm, open-label study to assess the safety and efficacy of the Resolute Integrity Stent for the treatment of de novo lesions in native coronary arteries with a reference vessel diameter (RVD) of 2.25 mm to 4.2 mm in patients who receive extended length stents (34 mm or 38 mm) referred to as the Extended Length Study.
The purpose of this post approval study is to conduct a prospective, multicenter evaluation of the procedural and clinical outcomes of subjects that are treated with the commercially available Medtronic Resolute Integrity Zotarolimus-Eluting Coronary Stent System.
The study will evaluate the effect of BB3 to preserve myocardial (heart) tissue and function following myocardial infarction (heart attack).