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rivaroxaban versus warfarin

Joji Hagii, Hirofumi Tomita, Norifumi Metoki, Yoshiko Tamai, Shin Saito, Hiroshi Shiroto, Hiroyasu Hitomi, Takaatsu Kamada, Satoshi Seino, Koki Takahashi, Satoko Sasaki, Minoru Yasujima, Ken Okumura
INTRODUCTION: Patients with intracerebral hemorrhage during rivaroxaban treatment have small hematoma and favorable outcomes compared with those with warfarin. We investigated its possible mechanism, focusing on prothrombin fragment 1+2 (F1+2), a marker of thrombin generation. MATERIALS AND METHODS: In 65 patients with acute cardioembolic stroke (median 77years), rivaroxaban was initiated at 5days after the onset. Plasma F1+2 level (normal range, 69-229pmol/L), prothrombin time (PT), and rivaroxaban concentration evaluated by anti-Xa activity were serially measured...
October 13, 2016: Thrombosis Research
Erin R Weeda, Philip S Wells, W Frank Peacock, Gregory J Fermann, Christopher W Baugh, Veronica Ashton, Concetta Crivera, Peter Wildgoose, Jeff R Schein, Craig I Coleman
We sought to compare length-of-stay (LOS), total hospital costs, and readmissions among pulmonary embolism (PE) patients treated with rivaroxaban versus parenterally bridged warfarin. We identified adult PE (primary diagnostic code = 415.1x) patients in the Premier Database (11/2012-9/2015), and included those with ≥1 PE diagnostic test on days 0-2. Rivaroxaban users (allowing ≤2 days of prior parenteral therapy) were 1:1 propensity score matched to patients parenterally bridged to warfarin. LOS, total costs, and readmission for venous thromboembolism (VTE) or major bleeding within the same or subsequent 2 months were compared between cohorts...
October 18, 2016: Internal and Emergency Medicine
Jay M Margolis, Steven Deitelzweig, Jeffrey Kline, Oth Tran, David M Smith, Concetta Crivera, Brahim Bookhart, Jeff Schein
PURPOSE: Using real-world data, this study compares inpatient length of stay (LOS) and costs for patients with a primary diagnosis of pulmonary embolism (PE) initiating treatment with oral anticoagulation with rivaroxaban versus warfarin. METHODS: Hospitalizations from MarketScan's Hospital Drug Database were selected from November 1, 2012, through December 31, 2013, for adults with a primary diagnosis of PE initiating treatment with rivaroxaban or warfarin. Warfarin patients were matched 1:1 to rivaroxaban patients using exact and propensity score matching...
October 14, 2016: Clinical Therapeutics
Francesco Pelliccia, Salvatore Rosanio, Giuseppe Marazzi, Sara Poggi, Alessandra Tanzilli, Cesare Greco, Carlo Gaudio, Giuseppe Rosano
The high risk of both stroke and major bleeding in atrial fibrillation (AF) patients with chronic kidney disease (CKD) defines an important population for whom the assessment of the balance between the risk of ischemic stroke and of bleeding is essential. The use of novel oral anticoagulants (NOACs) may be a viable option in this population due to their greater net clinical benefit than warfarin, as demonstrated by the results of the clinical phase III trials. NOACs have been found to have a greater net clinical benefit than warfarin in patients at high risk of either stroke (CHADS2≥1 or CHA2DS2-VASc score≥2) or bleeding (HAS-BLED≥3)...
October 1, 2016: International Journal of Cardiology
E Pandya, B V Bajorek
WHAT IS KNOWN AND OBJECTIVE: The importance of 'shared decision-making' is much emphasized in recent clinical guidelines regarding stroke management in atrial fibrillation (AF), more so following the inclusion of non-vitamin K oral anticoagulants (NOACs) among the treatment options. It is important that patients are navigated through balanced and unbiased information about the available treatment options, so as to understand the risk and benefits associated with the therapies, and to enable them to accordingly communicate their concerns and views with their clinicians prior to therapy selection...
October 5, 2016: Journal of Clinical Pharmacy and Therapeutics
Yi-Hsin Chan, Chi-Tai Kuo, Yung-Hsin Yeh, Shang-Hung Chang, Lung-Sheng Wu, Hsin-Fu Lee, Hui-Tzu Tu, Lai-Chu See
BACKGROUND: It is unclear whether the non-vitamin K antagonist oral anticoagulant agents rivaroxaban and dabigatran are superior to warfarin for efficacy and safety outcomes in Asians with nonvalvular atrial fibrillation (NVAF). OBJECTIVES: The aim of this study was to compare the risk for thromboembolic events, bleeding, and mortality associated with rivaroxaban and dabigatran versus warfarin in Asians with NVAF. METHODS: A nationwide retrospective cohort study was conducted of consecutive patients with NVAF taking rivaroxaban (n = 3,916), dabigatran (n = 5,921), or warfarin (n = 5,251) using data collected from the Taiwan National Health Insurance Research Database between February 1, 2013 and December 31, 2013...
September 27, 2016: Journal of the American College of Cardiology
Craig I Coleman, Matthias Antz, Kevin Bowrin, Thomas Evers, Edgar P Simard, Hendrik Bonnemeier, Riccardo Cappato
BACKGROUND: Little data exists regarding the effectiveness and safety of rivaroxaban or apixaban versus warfarin in nonvalvular atrial fibrillation (NVAF) patients treated outside of clinical trials. METHODS: This was a retrospective study using MarketScan claims from January 2012 to October 2014. We included adults, newly initiated on rivaroxaban, apixaban or warfarin, with a baseline CHA2DS2-VASc score ≥2, ≥2 diagnosis codes for NVAF and ≥180 days of continuous medical and prescription benefits...
September 20, 2016: Current Medical Research and Opinion
Stephanie Law, Daljit Ghag, Eric Grafstein, Robert Stenstrom, Devin Harris
OBJECTIVES: Patients with venous thromboembolism (VTE) (deep vein thrombosis [DVT] and pulmonary embolism [PE]) are commonly treated as outpatients. Traditionally, patients are anticoagulated with low-molecular-weight heparin (LMWH) and warfarin, resulting in return visits to the ED. The direct oral anticoagulant (DOAC) medications do not require therapeutic monitoring or repeat visits; however, they are more expensive. This study compared health costs, from the hospital and patient perspectives, between traditional versus DOAC therapy...
September 2016: CJEM
Rohan Shah, Anne Hellkamp, Yuliya Lokhnygina, Richard C Becker, Scott D Berkowitz, Günter Breithardt, Werner Hacke, Jonathan L Halperin, Graeme J Hankey, Keith A A Fox, Christopher C Nessel, Kenneth W Mahaffey, Jonathan P Piccini, Daniel E Singer, Manesh R Patel
BACKGROUND: We aimed to investigate the relationship between aspirin use and clinical outcomes in patients enrolled in Rivaroxaban Once Daily Oral Direct Factor Xa Inhibition Compared with Vitamin K Antagonism for Prevention of Stroke and Embolism Trial in Atrial Fibrillation (ROCKET AF), in particular, those with known coronary artery disease (CAD). METHODS: Patients in ROCKET AF, comparing rivaroxaban and warfarin, were analyzed. Aspirin use was assessed at baseline...
September 2016: American Heart Journal
Hannah Cohen, Beverley J Hunt, Maria Efthymiou, Deepa R J Arachchillage, Ian J Mackie, Simon Clawson, Yvonne Sylvestre, Samuel J Machin, Maria L Bertolaccini, Maria Ruiz-Castellano, Nicola Muirhead, Caroline J Doré, Munther Khamashta, David A Isenberg
BACKGROUND: Rivaroxaban is established for the treatment and secondary prevention of venous thromboembolism, but whether it is useful in patients with antiphospholipid syndrome is uncertain. METHODS: This randomised, controlled, open-label, phase 2/3, non-inferiority trial, done in two UK hospitals, included patients with antiphospholipid syndrome who were taking warfarin for previous venous thromboembolism, with a target international normalised ratio of 2·5. Patients were randomly assigned 1:1 to continue with warfarin or receive 20 mg oral rivaroxaban daily...
September 2016: Lancet Haematology
Erin R Weeda, Christine G Kohn, W Frank Peacock, Gregory J Fermann, Concetta Crivera, Jeff R Schein, Craig I Coleman
STUDY OBJECTIVE: To compare hospital length of stay (LOS) and hospital treatment costs in low-risk patients with pulmonary embolism (PE) anticoagulated with rivaroxaban or heparin bridging to warfarin therapy. DESIGN: Retrospective review of electronic health records and hospital billing records. SETTING: Large, teaching hospital in the northeastern United States. PATIENTS: One hundred ninety adults with objectively confirmed acute PE presenting to the emergency department between November 1, 2012, and May, 12, 2015, who were classified as low risk of early mortality and received anticoagulation with either rivaroxaban or heparin (i...
October 2016: Pharmacotherapy
Gary W Jean, Katherine Kelly, Jennie Mathew, Eneko Larumbe, Randall Hughes
PURPOSE: The purpose of this study is to compare the rates of recurrent VTE among cancer patients treated with parenteral agents to the oral anticoagulants. METHODS: This single-center study was a retrospective chart review of cancer patients with recurrent VTE between January 1, 2009 and December 31, 2014. The primary outcome of the study is the rate of recurrent VTE in patients who received a parenteral anticoagulant (enoxaparin, dalteparin, fondaparinux) versus those who received oral anticoagulants (warfarin and rivaroxaban)...
August 20, 2016: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
Adam J Singer, Jim Xiang, Christopher Kabrhel, Gino J Merli, Charles Pollack, Victor F Tapson, Peter Wildgoose, W Frank Peacock
STUDY OBJECTIVE: Traditionally, patients with pulmonary embolism (PE) are admitted from the emergency department and treated with low molecular weight heparin followed by warfarin. Several studies now demonstrate that it is possible to identify low-risk PE patients that can safely be treated as outpatients. The advent of the direct-acting oral anticoagulants such as rivaroxaban has made it easier than ever to manage patients outside of the hospital. This paper describes the design of a randomized controlled trial aimed at testing the hypothesis that low-risk PE patients can be safely and effectively managed at home using rivaroxaban, resulting in fewer days of hospitalization than standard of care treatment...
August 18, 2016: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
Sreekanth Vemulapalli, Anne S Hellkamp, W Schuyler Jones, Jonathan P Piccini, Kenneth W Mahaffey, Richard C Becker, Graeme J Hankey, Scott D Berkowitz, Christopher C Nessel, Günter Breithardt, Daniel E Singer, Keith A A Fox, Manesh R Patel
BACKGROUND: We conducted a retrospective analysis examining the association between systolic blood pressure (SBP) or hypertension bracket and stroke risk in patients with atrial fibrillation (AF). METHODS: The study included 14,256 anticoagulated patients in the ROCKET AF trial. Cox proportional hazards models were used to compare the risk of adverse outcomes by European Society of Cardiology hypertension bracket and screening SBP. RESULTS: In total, 90...
August 2016: American Heart Journal
Steven Deitelzweig, François Laliberté, Concetta Crivera, Guillaume Germain, Brahim K Bookhart, William H Olson, Jeffrey Schein, Patrick Lefebvre
PURPOSE: Compared with low-molecular-weight heparin (LMWH) and warfarin, the oral anticoagulant rivaroxaban has advantages, such as simplified care, that may lead to less health care resource utilization. METHODS: A retrospective, matched-cohort analysis was conducted using claims dated between January 2011 and December 2013 from the Truven Health Analytics MarketScan databases. Adult patients who had a primary diagnosis of deep vein thrombosis (DVT) during an outpatient or emergency room (ER) visit after November 2, 2012, and who were treated with rivaroxaban or LMWH/warfarin on the same day, were identified...
August 2016: Clinical Therapeutics
Xiaoxi Yao, Neena S Abraham, Lindsey R Sangaralingham, M Fernanda Bellolio, Robert D McBane, Nilay D Shah, Peter A Noseworthy
BACKGROUND: The introduction of non-vitamin K antagonist oral anticoagulants has been a major advance for stroke prevention in atrial fibrillation; however, outcomes achieved in clinical trials may not translate to routine practice. We aimed to evaluate the effectiveness and safety of dabigatran, rivaroxaban, and apixaban by comparing each agent with warfarin. METHODS AND RESULTS: Using a large US insurance database, we identified privately insured and Medicare Advantage patients with nonvalvular atrial fibrillation who were users of apixaban, dabigatran, rivaroxaban, or warfarin between October 1, 2010, and June 30, 2015...
June 13, 2016: Journal of the American Heart Association
Christopher B Fordyce, Anne S Hellkamp, Yuliya Lokhnygina, Samuel M Lindner, Jonathan P Piccini, Richard C Becker, Scott D Berkowitz, Günter Breithardt, Keith A A Fox, Kenneth W Mahaffey, Christopher C Nessel, Daniel E Singer, Manesh R Patel
BACKGROUND: Despite rapid clinical adoption of novel anticoagulants, it is unknown whether outcomes differ among patients with worsening renal function (WRF) taking these new drugs compared with warfarin. We aimed to determine whether the primary efficacy (stroke or systemic embolism) and safety (major bleeding and nonmajor clinically relevant bleeding) end points from the ROCKET AF trial (Rivaroxaban Once-Daily, Oral, Direct Factor Xa Inhibition Compared With Vitamin K Antagonism for Prevention of Stroke and Embolism Trial in Atrial Fibrillation trial) differed among participants with WRF taking rivaroxaban and those taking warfarin...
July 5, 2016: Circulation
Haruhiko Takahashi, Yasushi Jimbo, Hiroki Takano, Hiroshi Abe, Masahito Sato, Yukihiko Fujii, Yoshifusa Aizawa
The neuroradiological findings and its outcomes of intracerebral hemorrhage (ICH) were compared between the non-vitamin K antagonist oral anticoagulant (NOAC) therapy and warfarin therapy. In the latest 3 years, 13 cases of nonvalvular atrial fibrillation on NOAC therapy were admitted for ICH. For comparison, 65 age- and gender-comparable patients with ICH on warfarin therapy were recruited. Three NOACs had been prescribed: dabigatran (n = 4), rivaroxaban (n = 2), and apixaban (n = 7). The average ages were 76 ± 9 and 78 ± 8 years in the warfarin (n = 65) and NOAC groups (n = 13), respectively...
July 15, 2016: American Journal of Cardiology
Jeffrey D Miller, Xin Ye, Gregory M Lenhart, Amanda M Farr, Oth V Tran, W Jackie Kwong, Elizabeth A Magnuson, William S Weintraub
BACKGROUND: Understanding the value of new anticoagulation therapies compared with existing therapies is of paramount importance in today's cost-conscious and efficiency-driven health care environment. Edoxaban and rivaroxaban for stroke prevention in nonvalvular atrial fibrillation (NVAF) patients with CHADS2 scores ≥2 have been evaluated in pivotal trials versus warfarin. The relative value of edoxaban versus rivaroxaban would be of interest to health care stakeholders and patients who prefer a once-daily treatment option for long-term stroke prevention in NVAF...
2016: ClinicoEconomics and Outcomes Research: CEOR
Yishen Wang, Beata Bajorek
RATIONALE, AIMS AND OBJECTIVES: The decision-making around antithrombotics in atrial fibrillation requires comprehensive risk versus benefit assessment. In view of the availability of novel oral anticoagulants (NOACs) including dabigatran, rivaroxaban and apixaban, a decision support tool designed to assist the selection of antithrombotics has been modified to consider both warfarin and NOACs. This study aims to pre-test this modified decision support tool. METHODS: The decision support tool was modified to consider either warfarin or NOACs as first-line therapy and applied to data pertaining to a cohort of 393 patients in New South Wales...
June 7, 2016: Journal of Evaluation in Clinical Practice
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