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Anticoagulation clinical trials

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NCT ID: NCT02591732 Completed - Anticoagulation Clinical Trials

A Nationwide Registry Study of Patients With Nonvalvular Atrial Fibrillation Initiating Oral Anticoagulation Therapies In The Early Period Following Apixaban Marketing In Denmark

Start date: August 2014
Phase: N/A
Study type: Observational

The purpose of this study is to describe the characteristics of patients treated with different OATs and whether these characteristics differ between treatments. Furthermore to describe persistence to each OAT and risk of bleeding after initiating each OAT.

NCT ID: NCT02492828 Completed - Anticoagulation Clinical Trials

Adherence of Apixaban and Warfarin in Patients With Arterial Fibrillation in Real-world Setting in Sweden

Start date: June 2014
Phase: N/A
Study type: Observational

This will be a retrospective cohort study using national register linkage data (including prescription, inpatient, mortality, and socioeconomic data). The study period will be from May 29, 2013 to June 30, 2015. Patients will be followed from the start of treatment (index date) until their death, exiting the database, or until the end of the study period (June 30, 2015).

NCT ID: NCT02427516 Completed - Anticoagulation Clinical Trials

Cost of Monitoring Patients Treated With Vitamin K Antagonists in Spain

Start date: January 2009
Phase: N/A
Study type: Observational

To estimate annualized total cost rates (i.e. direct medical costs from hospitalizations, consultations, medications, and tests) of adequately controlling a patient (i.e. INR between 2-3 and TTR≥ 60%) diagnosed with non-valvular atrial fibrillation (NVAF) or venous thromboembolism (VTE), and treated with vitamin K antagonists (VKA) in Spain.

NCT ID: NCT02392104 Completed - Anticoagulation Clinical Trials

Prospective Evaluation of an Extended Interval of INR Follow-up in a VA Anticoagulation Service

Start date: March 27, 2015
Phase: N/A
Study type: Interventional

The purpose of this study is to determine the feasibility, safety, and acceptability of implementing an extended interval of INR follow-up in Veterans on a stable dose of warfarin in the Anticoagulation Clinic at the William S. Middleton Memorial Veterans Hospital. All participants will be provided usual care from the anticoagulation clinic, except for the interval between INRs. If the participant continues to be on a stable dose of warfarin and the INRs are within the goal range of 2-3 (including lab variation), follow-up visits will be scheduled following an extended interval protocol. Patient satisfaction will be evaluated at various points throughout the study. Additionally provider satisfaction, confidence, and knowledge of the extended interval protocol will be analyzed. Bleeding and thromboembolic events will be evaluated to ensure the safety of an extended follow-up interval.

NCT ID: NCT02074358 Completed - Anticoagulation Clinical Trials

A Study to Assess the Effects of 2 Prothrombin Complex Concentrates on the Pharmacodynamics of Apixaban in Healthy Adult Subjects

Start date: February 2014
Phase: Phase 1
Study type: Interventional

The purpose of this study is to assess the effect of two 4-Factor PCC formulations on Apixaban pharmacodynamics in healthy adult subjects.

NCT ID: NCT01907048 Completed - Anticoagulation Clinical Trials

Patient and Physician Knowledge of Key Safety Messages

Start date: September 15, 2014
Phase:
Study type: Observational

This cross-sectional epidemiologic study measured physician and patient awareness and understanding of the key messages in the Xarelto prescriber guide and Xarelto patient alert card.

NCT ID: NCT01884337 Completed - Anticoagulation Clinical Trials

Multi-center Study to Evaluate the Safety of Apixaban (BMS-562247) in Indian Subjects Undergoing Elective Total Knee Replacement or Total Hip Replacement Surgery

Start date: March 24, 2015
Phase: Phase 4
Study type: Interventional

The primary purpose of this protocol is to evaluate the safety of Apixaban in prophylaxis of Venous Thromboembolism (VTE) in Indian patients undergoing elective total knee or hip replacement

NCT ID: NCT01477528 Completed - Anticoagulation Clinical Trials

Study of Reduced Anti-coagulation/Anti-platelet Therapy in Patients With the HeartMate II Left Ventricular Assist System (LVAS) (TRACE)

TRACE
Start date: November 2011
Phase:
Study type: Observational

The purpose of this observational study is to obtain multi-center data on HeartMate II (HMII) patients managed with reduced anticoagulation or anti-platelet regimes, and the incidence of thrombotic and bleeding adverse events associated with these regimes.

NCT ID: NCT01269905 Completed - Anticoagulation Clinical Trials

Choice of Valve Substitute in the Era of Oral Anticoagulation Self-Management

Start date: n/a
Phase: N/A
Study type: Observational

The optimal valve substitute for patients between 60-70 years is controversial. We compared anticoagulation-related adverse events (ARAE) in patients receiving mechanical heart valve replacement (MHVR) on INR self-management vs. stentless bioprosthesis, to assess whether the risk of structural valve deterioration (SVD) is still out-weighted by the benefit of not requiring permanent anticoagulation.

NCT ID: NCT01267487 Completed - Cardiac Surgery Clinical Trials

Clinical Trial Comparing Heparin and Protamine Fixed and Titrated Doses in Cardiac Surgery With Cardiopulmonary Bypass

Start date: July 2009
Phase: Phase 4
Study type: Interventional

There are currently several schemes described for anticoagulation with heparin and its reversal with protamine during cardiac surgery with CPB. The oldest, and most used in our routine environment, is the scheme of fixed doses, in which a bolus dose of heparin at the start of CPB is established in IU/kg of body weight and the dose of protamine at the end of CPB is calculated based on the initial dose of heparin administered. These schemes do not take into account the variability inter-patients and can result in overdose or sub-doses of one or both drugs. The titration schedule of doses of heparin and protamine through the principle of dose-response curve of Bull promotes individualization of dosage according to the response of each patient. This scheme has been associated with an effective reversal of the effect of heparin after CPB and with reduction of post-operatory bleeding and transfusion. The restoration of a state of anticoagulation by heparin after its reversal by protamine is called "rebound effect". It is a phenomenon explained by the recirculation of heparin stored in the reticulum-endothelial system and connective tissue, or by free residual concentration of heparin after clearance of protamine. This effect may be present for more than 6 hours of post-operatory and may contribute to increase post-operatory bleeding.