Clinical trials: Prosthetic Heart Valve Thrombosis
Thrombosis, Atherothrombosis
In-vivo Thrombus Imaging With 18F-GP1, a Novel Platelet PET Radiotracer
To date, the investigators have successfully employed a radiotracer (18F-sodium fluoride) as a marker of necrotic inflammation in human atherosclerosis.
- Conditions
- Thrombosis, Atherothrombosis, Myocardial Infarction, STEMI
- Trial name
- iThrombus (NCT03943966)
- Testing
- 18F-GP1 PET CT
- Where
- United Kingdom
- Volunteers
- 73 people
- Sponsor
- University of Edinburgh
Prosthetic Valve Thrombosis
A Study Comparing a New Dosing Regimen of Clot-dissolving Drug for Mechanical Heart Valves Which Show Clots
The optimal dosage and duration of administration of clot-dissolving medications for the treatment of patients with mechanical heart valves with clots is not known.
- Trial name
- RAFT-PVT (NCT00232622)
- Testing
- Streptokinase
- Volunteers
- 120 people
- Sponsor
- All India Institute of Medical Sciences
Atrial Fibrillation, Deep Vein Thrombosis
Genotype-Guided Warfarin Therapy Trial
The purpose of the investigators' study is to determine the clinical utility of a warfarin-dosing algorithm that incorporates genetic information (VKORC1 and CYP2C9 alleles) for adult patients initiating warfarin therapy.
- Conditions
- Atrial Fibrillation, Deep Vein Thrombosis, Pulmonary Embolism, Artificial Heart Valve
- Trial name
- WARFPGX (NCT00904293)
- Testing
- Genotype-guided dose determination, Non-genotype guided warfarin dosing
- Where
- United States
- Volunteers
- 109 people
- Sponsor
- University of North Carolina, Chapel Hill
Thromboembolism, Heart Valve Prosthesis
Follow on Study From RE-ALIGN
To collect additional data relating to safety and indicators of efficacy for patients who have participated in the 1160.113 study.
- Trial name
- NCT01505881
- Testing
- dabigatran etexilate low dose, warfarin 5mg, dabigatran etexilate intermediate dose
- Where
- 30 sites in Belgium, Canada and 7 more
- Volunteers
- 158 people
- Sponsor
- Boehringer Ingelheim
Thrombolysed
To Compare the Efficacy & Safety of Ultra-Slow (24 hr) Low Dose (25 mg) Infusion of Alteplase Over Slow (24hr) Infusion of Streptokinase in Mechanical Prosthetic Valve Thrombosis
Annual incidence of PVT for mechanical valves is 0.3 - 1.3% patient-yrs. First postoperative year is marked by a 24% incidence of thrombosis.
- Trial name
- PHVT (NCT07360717)
- Testing
- Alteplase, streptokinase
- Where
- India
- Volunteers
- 100 people
- Sponsor
- U. N. Mehta Institute of Cardiology and Research Center
Atrial Fibrillation, Venous Thromboembolism
Self-management of Anticoagulation Treatment
The aim of the study was to compare self-management of anticoagulant treatment with conventional anticoagulant treatment in Norway.
- Conditions
- Atrial Fibrillation, Venous Thromboembolism, Artificial Heart Valve
- Trial name
- NCT02864537
- Testing
- Training
- Volunteers
- 130 people
- Sponsor
- University of Bergen
Anti-coagulation Therapy, DVT
Warfarin Adverse Event Reduction For Adults Receiving Genetic Testing at Therapy INitiation (WARFARIN)
The WARFARIN Study is a clinical trial designed to determine if the use of genetic information related to warfarin sensitivity can help create a dose of warfarin that will result in less hospitalizations and deaths related to…
- Conditions
- Anti-coagulation Therapy, DVT, Pulmonary Embolism, Joint Surgery Multiple
- Trial name
- WARFARIN (NCT01305148)
- Testing
- Warfarin GenoSTAT Test
- Where
- 56 sites in United States
- Volunteers
- 3,800 people
- Sponsor
- Iverson Genetic Diagnostics, Inc.
Atrial Fibrillation, Deep Vein Thrombosis
Applying Pharmacogenetics to Warfarin Dosing in Chinese Patients
The purpose of this study is to determine whether pharmacogenetic guided dosing of warfarin is promising for the improvement of efficiency, therapeutic efficacy, and, especially, safety of warfarin therapy than a dosing regimen…
- Conditions
- Atrial Fibrillation, Deep Vein Thrombosis, Pulmonary Embolism, Heart Valve Disease
- Trial name
- NCT01610141
- Testing
- Genotype-guided warfarin dosing, Non-genotype guided warfarin dosing
- Where
- China
- Volunteers
- 500 people
- Sponsor
- Chinese PLA General Hospital
Heart Valve Disease
Prospective Randomized On-X Versus SJM Evaluation Trial
The study hypothesizes that rate of thromboembolic complications of the On-X prosthesis is reduced as compared to the SJM prosthesis.
- Trial name
- PROSE (NCT00639782)
- Testing
- On-X Heart valve replacement, SJM Heart valve replacement
- Where
- 28 sites in United States, Australia and 7 more
- Volunteers
- 857 people
- Sponsor
- On-X Life Technologies, Inc.
Bioprosthetic Valve Failure, Prosthetic Heart Valve Dysfunction
REVIVE-FR Registry
This registry aims to investigate treatment options for patients whose previously implanted biological aortic heart valve no longer functions properly.
- Conditions
- Bioprosthetic Valve Failure, Prosthetic Heart Valve Dysfunction, Structural Valve Deterioration, Prosthetic Heart Valve Thrombosis
- Trial name
- NCT07885761
- Testing
- TAVI-in-SAVR (Valve-in-Valve), THV-in-THV (Redo-TAVI), Surgical Explantation of a Failed Transcatheter Heart Valve
- Volunteers
- 200 people
- Sponsor
- Institut für Pharmakologie und Präventive Medizin
Atrial Fibrillation, Venous Thromboses
Pharmacogenetic Dosage Algorithm for Acenocoumarol
The use of coumarins has been a challenge for doctors because of its narrow therapeutic range and they show great inter and intra-individual variability in the dose necessary to achieve an international normalized ratio (INR)…
- Conditions
- Atrial Fibrillation, Venous Thromboses, Cardiac Valve Disease
- Trial name
- NCT03015025
- Testing
- Acenocoumarol
- Where
- Spain
- Volunteers
- 340 people
- Sponsor
- Instituto de Investigación Hospital Universitario La Paz
Cardiac Arrhythmias, Hemorrhage
Tapered Warfarin or Interrupted Warfarin With Heparin Bridging for Pacemaker or Defibrillator Implantation
Approximately 2 million patients in North America are currently treated with the blood thinner warfarin. These patients have every year more than 200,000 invasive procedures, for which warfarin must be stopped to avoid bleeding…
- Conditions
- Cardiac Arrhythmias, Hemorrhage, Thromboembolism
- Trial name
- PACEBRIDGE (NCT02094157)
- Testing
- Tapered warfarin regimen, Bridged regimen Low-molecular-weight heparin
- Where
- 2 sites in Canada
- Volunteers
- 173 people
- Sponsor
- McMaster University
Anticoagulant Antagonists, Vitamin K and Other Coagulants Causing Adverse Effects in Therapeutic Use, Atrial Fibrillation
Evaluation of Oral Anticoagulation With Vitamin K Antagonists - The thrombEVAL Study Programme
Since decades, oral anticoagulation (OAC) with vitamin K antagonists (VKA) is an established therapy for both prevention and treatment of thromboembolism in daily clinical routine.
- Conditions
- Anticoagulant Antagonists, Vitamin K and Other Coagulants Causing Adverse Effects in Therapeutic Use, Atrial Fibrillation, Venous Thromboembolism
- Trial name
- thrombEVAL (NCT01809015)
- Where
- Germany
- Volunteers
- 2,318 people
- Sponsor
- Johannes Gutenberg University Mainz
Stroke
PERIOP 2 - A Safety and Effectiveness of LMWH vs Placebo Bridging Therapy for Patients on Long Term Warfarin Requiring Temporary Interruption of Warfarin.
The purpose of the study is to determine the effectiveness and safety of LMWH postoperative bridging therapy (standard of care) versus postoperative placebo bridging therapy (experimental arm)for patients with mechanical heart…
- Trial name
- NCT00432796
- Testing
- Dalteparin
- Where
- 8 sites in Canada, India
- Volunteers
- 1,473 people
- Sponsor
- London Health Sciences Centre Research Institute OR Lawson Research Institute of St. Joseph's
Aortic Valve Disease, Artificial Heart Valves
Post-market Clinical Monitoring of the Safety and Efficacy of the Aortic Valve Bioprothesis
The goal of this multicenter prospective cohort study is to evaluate the long-term safety and efficacy of clinical outcomes of aortic valve replacement using the "TiAra" prosthesis with or without concomitant procedures.
- Trial name
- TiAra (NCT05998694)
- Where
- Russia
- Volunteers
- 2,000 people
- Sponsor
- Closed Joint-Stock Company NeoCor
Pulmonary Embolism, Deep Vein Thrombosis
Therapeutic Initial Heparin Dosing for Patients With Clots or Certain Heart Conditions Admitted to the Hospital
The goal of this clinical trial study is to test whether a mathematical calculation, using the patient's gender, weight and kidney function, can better predict a patient's heparin goal dose than a flat number of units per patient…
- Conditions
- Pulmonary Embolism, Deep Vein Thrombosis, Atrial Fibrillation, Acute Cardiac Syndrome
- Trial name
- NCT07250763
- Testing
- Initial Heparin Dose Modification
- Where
- United States
- Volunteers
- 145 people
- Sponsor
- Inova Health Care Services
Atrial Fibrillation, Venous Thrombosis
Safer Warfarin Treatment
The study is a national multicenter prospective observational study, including 200 patients. The main purpose of this study is to explore in more detail the influence of genetic variability (CYP enzymes and vitamin K dependent…
- Conditions
- Atrial Fibrillation, Venous Thrombosis, Pulmonary Embolism, Heart Valve Prosthesis
- Trial name
- CYKOWAR (NCT01042067)
- Testing
- Blood specimens (whole blood, serum, plasma)
- Where
- Norway
- Volunteers
- 200 people
- Sponsor
- Oslo University Hospital
Atrial Fibrillations, Heart Valve Prostheses
What is the Optimal antiplatElet and Anticoagulant Therapy in Patients With Oral Anticoagulation Undergoing revasculariSaTion 2.
The optimal antithrombotic therapy for patients with atrial fibrillation (AF) with a CHA2DS2-VASc score ≥1 with concomitant acute coronary syndrome (ACS) or revascularisation by percutaneous coronary intervention (PCI) with…
- Conditions
- Atrial Fibrillations, Heart Valve Prostheses, Acute Coronary Syndromes, Coronary Artery Diseases
- Trial name
- WOEST 2 (NCT02635230)
- Testing
- Combination of chronic oral anticoagulation and a P2Y12 inhibitor with or without aspirin.
- Where
- 9 sites in Belgium, Netherlands
- Volunteers
- 2,200 people
- Sponsor
- R&D Cardiologie
Atrial Fibrillation, Venous Thromboembolism
Prothrombin Times Outside the Therapeutic Range in Otherwise Stable Patients
Warfarin is very effective for the prevention of blood clots (thrombosis). A test of coagulation, the prothrombin time (PT) is used to monitor the effect.
- Conditions
- Atrial Fibrillation, Venous Thromboembolism, Ischemic Stroke, Myocardial Infarction
- Trial name
- FORESPEAK-0 (NCT00814177)
- Testing
- warfarin
- Where
- Canada
- Volunteers
- 160 people
- Sponsor
- Hamilton Health Sciences Corporation
Left-sided Prosthetic Heart Valve Thrombosis
Surgery Versus Fibrinolytic Therapy for Left-sided Prosthetic Heart Valve Thrombosis
Malfunction of mechanical heart valves due to clot formation is a potentially devastating complication. It often results in heart failure, death or stroke.
- Trial name
- SAFE-PVT (NCT01641549)
- Testing
- Emergency surgery, Fibrinolytic therapy
- Where
- India
- Volunteers
- 115 people
- Sponsor
- All India Institute of Medical Sciences