88 Clinical Trials for Various Conditions
The purpose of this study is to conduct the initial clinical investigation of the Foldax Polymer Mitral Valve to collect evidence on the device's safety and performance. The study is anticipated to confirm successful clinical safety and clinical effectiveness with significant improvements in clinical hemodynamic performance.
When the upper chambers of a person's heart receive or generate irregular electrical signals, it causes abnormal rhythm in the heartbeat. This is called atrial fibrillation. Atrial fibrillation goes along with blood clots that may cause mainly strokes and less often other diseases, such as a heart attack. Some patients with atrial fibrillation have other heart disease, such as heart valves that may need to be replaced using catheters. Often doctors give patients drugs that reduce those blood clots. These are either vitamin K antagonist (VKA) or direct anticoagulants, such as edoxaban. In these patients, it is unclear which of the drugs is better for reducing stroke without increasing severe bleedings.
The long-term goal of this research initiative is to develop a new valve replacement option for neonates, infants and young children. The central hypothesis is that transplantation of a freshly isolated heart valve will be associated with superior outcomes compared to currently available options, including preserved cadaver valves, bioprosthetic tissue valves, or mechanical valves. This new operation has been named "partial heart transplantation". The proposed study is a single-center, nonrandomized single arm pilot trial of "partial heart transplantation" in neonates, infants and young children who require semilunar heart valve replacement. This "first in man" trial seeks to determine whether valve replacement using partial heart transplant is feasible and safe. Primary aims are survival one year and five years following the procedure. The hypothesis is that, when compared to historical controls who have undergone homograft valve replacement, those undergoing partial heart transplantation will have equal or superior survival one year and five years following the procedure. Secondary aims are to assess growth and function of the transplanted valve. The hypothesis is that when compared to historical controls who have undergone conventional valve replacement, those undergoing partial heart transplantation will have valve growth that corresponds with somatic growth and superior valve function 1 year following the procedure. Up to five patients will be enrolled in this trial over three years.
EPOgen and Restrictive Transfusions in Patients Undergoing Cardiac Surgery (EPORT)
Frailty is a state of decreased physiologic reserves and vulnerability to stressors. Several tools exist to measure frailty, some based on physical tests and others on questionnaires, yet there is no agreement on which tool to recommend. This multi-center prospective cohort study is aimed at comparing various frailty assessment tools to determine which best predicts death or major complications after cardiac surgery or transcatheter intervention. The population of interest is elderly patients with severe aortic stenosis undergoing surgical or transcatheter aortic valve replacement. The frailty assessment tools under investigation include composite frailty scales, physical performance tests, muscle mass, and biomarker expression. The overall objective is to improve our ability to predict risk by measuring frailty using the optimal tool in elderly cardiovascular patients.
The goal of this research study is to develop better dosing of anticoagulation medication in both Caucasian and African Americans through analysis of various genetic factors.
This is a multi-center, randomized study of sitaxsentan administered intravenously to subjects who are undergoing elective CABG, cardiac valve replacement, or combined CABG and cardiac valve replacement procedures that require CPB.
The study goal is to conduct a randomized controlled trial to compare safety and accuracy of dosing based on clinical information including the clinical reason for your taking coumadin, your age, gender, your body surface area, and other medical conditions you may have with dosing estimated by a dosing calculator which adjusts for factors affecting coumadin dosing variability including genotypes for genes important in Coumadin metabolism and response. The hypothesis to be tested by this trial states that:when compared to patients managed with a best practices standard-of-care coumadin dosing regimen, patients randomized to coumadin dosing based on genetically programmed metabolic capacity and other known clinical and environmental factors affecting dose will: 1)show reduced risk of adverse events (using surrogate measures of such events); and 2)more rapidly achieve Coumadin dosing.
This study compares a novel breathing device, called the GO2 Mouthpiece, to the standard breathing tool called the incentive spirometer, thus improving respiratory dynamics of the postoperative patient.
The purpose of this clinical study is to determine if there is an increased incidence and rate of aortic regurgitation in younger (\</= 70 years of age) patients implanted with the Model 1000 and undergoing isolated aortic valve replacement of his/her native aortic valve, or replacement of a failed prosthesis.
Long-term anticoagulation is indicated in patients for the prophylaxis and/or treatment of the thromboembolic complications associated with atrial fibrillation and/or mechanical cardiac valve replacement, prevention or treatment of venous thromboembolism (deep vein thrombosis and pulmonary embolism), to prevent thromboembolic events post-myocardial infarction, and in patients with systemic embolic events. Currently the only approved oral medication for anticoagulation is warfarin (Coumadin, Bristol-Myers Squibb and generic warfarin. Dosage is controlled by periodic determinations of the prothrombin time (PT)/International Normalized Ratio (INR). Under treatment may lead to venous or arterial thrombotic events or stroke, while over treatment may lead to major bleeding and even death. Patients require frequent INR monitoring to maintain a therapeutic level of anticoagulation. The therapeutic INR range varies by clinical indication, most commonly an INR 2-3 goal, but ranging from 1.5-4.0. Bleeding complications are more likely to occur above an INR value of 4.0. The vMetrics - Anticoagulation Management System is a remote patient management solution for Oral Anticoagulation Care patients. This system provides confirmation of patient question and testing protocols as well as virtual patient management care capability for dosage and patient scheduling. This trial will provide end points to ascertain efficiency against standard care protocol and confirm equivalent care standards.
The initial clinical investigation titled "ATS 3f(r) Aortic Bioprosthesis Model 1000 Study," was a prospective, non-randomized, multi-center study designed to evaluate the the safety and effectiveness obtained from 800 patient years using a common clinical protocol. Twenty-three (23) sites internationally and in the United States combined enrolled 405 patients. The objective of the study was to evaluate the safety and effectiveness of the ATS 3f(r) Aortic Bioprosthesis Model 1000 equine pericardial prosthesis in a a patient population undergoing isolated aortic valve replacement of his / her native aortic valve, or replacement of a failed prosthesis with or without concomitant procedures. Addendum: After receiving PMA approval in October of 2008 of the 21mm-29mm sizes, this IDE was expanded to comply with the conditions set forth in the approval notice. Study Protocol S2001 Rev. E is a continuation of the original protocol, but is only enrolling subjects who require a 19mm ATS 3f(r) Aortic Bioprosthesis, Model 1000 and is described as "A multi-center, non-randomized trial, designed to obtain 800 patient years. Each enrolled patient will be followed for a minimum one year and annually thereafter until size 19mm product approval or study cessation. Preoperative, discharge or 30 days (which ever comes last), 3-6 month, and annual follow-up data are required.
The purpose of this study is to assess the safety of INO-1001, an intravenous PARP (poly-\[ADP ribose\] polymerase) inhibitor, in patients undergoing heart surgery. The study also measures whether INO-1001 reduces the side effects caused by heart-lung bypass machines.
Cardiac rehabilitation (CR) is strongly recommended for patients with coronary heart disease. However, patient enrollment and completion of cardiac rehabilitation is low. This study will examine if a mobile phone intervention that uses a text messaging program can successfully promote participation in cardiac rehabilitation.
This PAS is an observational, non-randomized, multi-center, single arm, clinical study to evaluate long term safety and effectiveness of the SJM™ Masters Series Hemodynamic Plus (HP) 15mm aortic mechanical heart valve (15 AHPJ-505) as a replacement device for pediatric patients with a diseased, damaged, or malfunctioning aortic valve.
The primary objective of this study was to assess the efficacy and safety of 2 dose levels of ecallantide versus placebo in reducing blood loss following cardiopulmonary bypass (CPB), as measured by chest tube drainage during the first 12 hours postoperatively or until the chest tube was removed, whichever came first, in patients undergoing primary coronary artery bypass grafting (CABG), single valve repair, or single valve replacement. The secondary objective was to compare the efficacy of all ecallantide-treated participants (pooled high and low-doses) to placebo and to compare the high-dose to the low-dose ecallantide group. Other secondary objectives were to evaluate pharmacokinetics and antibody formation.
A Prospective, Multicenter, Non-Randomized, Single-Arm, Open-Label Clinical Study to Demonstrate the Safety and Effectiveness of the ShortCut™ device for splitting bioprosthetic aortic valve leaflets in patients who are presented for a valve-in-valve (ViV) transcatheter aortic valve replacement (TAVR) procedure for an approved ViV indication, and who are at risk for TAVR-induced coronary artery ostium obstruction.
This is a prospective observational study, the purpose of which is to: 1. Characterize response of the AV conduction system to TAVR with various prostheses by recording continuous His bundle electrograms during valve placement. 2. Correlate preprocedure ECG features with changes in AV nodal and infranodal conduction during placement of the valve prosthesis. 3. Correlate changes in AV nodal and infranodal conduction during the procedure with risk of developing AV conduction block after TAVR. 4. Assess the contribution of stressing the conduction system by atrial pacing prior to and following TAVR to prediction of postprocedural heart block. Assess the correlation between new onset bundle branch block, site and degree of conduction block or delay and subsequent development of high-grade or complete AV block.
The purpose of this study is to demonstrate faster time to extubation after arrival in the cardiothoracic intensive care unit (ICU) in patients undergoing isolated coronary artery bypass grafting (CABG), AVR and AVR/CABG combination who receive Sugammadex as compared to placebo.
This trial evaluates the effectiveness of CardioHeartConnect, an eight-week mobile cardiac rehabilitation intervention using Peloton fitness modules, compared to educational control among patients recovering from transcatheter aortic valve replacement (TAVR). The study aims to improve physical activity, functional capacity, quality of life, and cardiovascular health using wearable devices and a digital engagement platform. A total of 200 patients will be recruited from the UCHealth Structural Heart and Valve Clinic and randomized to either CardioHeartConnect or CardioHeartEd. Participants will be assessed at baseline, 8 weeks, and 12 months using surveys, smartwatch data, and electronic health records.
TTVR-AHI is a multicenter, retrospective registry including heart failure patients displaying a severe and symptomatic tricuspid regurgitation (TR), deemed non-eligible to cardiac surgery and therefore treated with transcatheter tricuspid valve replacement (TTVR) devices. This substudy of the main registry will focus on those with post-procedural acute hemodynamic instability (AHI).
The field of transcatheter tricuspid valve replacement (TTVR) is rapidly emerging and data on this topic are scarce. Particularly, little is known about which patients are at greatest risk of procedural complications, such as the timing and onset of conduction disturbances necessitating permanent pacemaker implantation, and how such patients are managed. On this background, the TRIPLACE Registry - an investigator-initiated global multicenter registry - is aimed at better understanding the safety and efficacy of orthotopic TTVR.
Determine if the standard of care at a cardiac rehabilitation center using what the investigators term to be "hybrid model" on the exercise component of cardiac rehabilitation is associated with improved adherence and outcomes. Discuss the hybrid model in comparison to traditional cardiac rehabilitation and layout a template on how to incorporate this hybrid model. Discuss factors that may lead to poor adherence and attendance to cardiac rehabilitation.
The goal of this retrospective chart review is to contribute to the literature on the mid-term durability and hemodynamics of the INSPIRS Resilia bioprosthesis when implanted in children and young adults.
The hypothesis is that SEV result in superior valvular hemodynamics (more pronounced during exercise) and exercise capacity relative to BEV. Furthermore, the hypothesis is that stress CMR will be able to demonstrate differences in these hemodynamic parameters. CMR will also provide refined assessment of paravalvular leak and its impact on ventricular function and on clinical outcomes.
The purpose of the study is to investigate the superiority of chronic left bundle branch area pacing compared to traditional right ventricular (RV) septal pacing in patients with high-grade conduction disease after transcatheter aortic valve replacement (TAVR). In this investigator initiated, multicenter, prospective, double-blinded, crossover study, chronic left bundle branch area pacing will be compared to chronic right ventricular septal pacing using echocardiographic measures of left ventricular systolic function in patients with a high cumulative ventricular pacing burden after TAVR.
The objective of this study is to establish the safety and effectiveness of the Edwards SAPIEN X4 Transcatheter Heart Valve (THV) in subjects who are at high or greater risk with a failing aortic bioprosthetic valve.
The objective of this study is to establish the safety and effectiveness of the Edwards SAPIEN X4 Transcatheter Heart Valve (THV) in subjects with symptomatic, severe, calcific aortic stenosis (AS).
To determine the optimal technique and equipment for selective coronary engagement specifically following Evolut THV implantation using commissural alignment.
The efficiency and promptness of heparin anticoagulation is necessary during the structural heart procedures to minimize time from insertion of cannulae to valve deployment in cardiac surgery. The goal of this study is to determine how rapidly the adequacy of heparin induced anticoagulation occurs using two different point of care activated clotting time technologies (iSTAT and Hemochron).