TY - JOUR
T1 - Rivaroxaban for Stroke Prevention after Embolic Stroke of Undetermined Source
AU - Hart, Robert G
AU - Sharma, Mukul
AU - Mundl, Hardi
AU - Kasner, Scott E
AU - Bangdiwala, Shrikant I
AU - Berkowitz, Scott D
AU - Swaminathan, Balakumar
AU - Lavados, Pablo
AU - Wang, Yongjun
AU - Wang, Yilong
AU - Davalos, Antonio
AU - Shamalov, Nikolay
AU - Mikulik, Robert
AU - Cunha, Luis
AU - Lindgren, Arne
AU - Arauz, Antonio
AU - Lang, Wilfried
AU - Czlonkowska, Anna
AU - Eckstein, Jens
AU - Gagliardi, Rubens J
AU - Amarenco, Pierre
AU - Ameriso, Sebastian F
AU - Tatlisumak, Turgut
AU - Veltkamp, Roland
AU - Hankey, Graeme J
AU - Toni, Danilo
AU - Bereczki, Daniel
AU - Uchiyama, Shinichiro
AU - Ntaios, George
AU - Yoon, Byung-Woo
AU - Brouns, Raf
AU - Endres, Matthias
AU - Muir, Keith W
AU - Bornstein, Natan
AU - Ozturk, Serefnur
AU - O'Donnell, Martin J
AU - De Vries Basson, Matthys M
AU - Pare, Guillaume
AU - Pater, Calin
AU - Kirsch, Bodo
AU - Sheridan, Patrick
AU - Peters, Gary
AU - Weitz, Jeffrey I
AU - Peacock, W Frank
AU - Shoamanesh, Ashkan
AU - Benavente, Oscar R
AU - Joyner, Campbell
AU - Themeles, Ellison
AU - Connolly, Stuart J
AU - NAVIGATE ESUS Investigators
AU - Amarenco, P.
AU - Ameriso, S.F.
AU - Arauzo, A.
AU - Andersen, G.
AU - Christensen, H.
AU - Christensen, T.
AU - Damgaard, D.
AU - Iversen, H.
AU - Hansen, C. Krarup
AU - Kruuse, C.
AU - Martinussen, M.
AU - Modrau, B.
AU - Murtuzova, A.
AU - Ovesen, C.
AU - Papina, M.
AU - Svaneborg, N.
AU - Von Weitzel-Mudersbach, P.
AU - Xiong, W.
AU - Zhang, C.
AU - Zweifler, R.
PY - 2018/6/7
Y1 - 2018/6/7
N2 - BACKGROUND Embolic strokes of undetermined source represent 20% of ischemic strokes and are associated with a high rate of recurrence. Anticoagulant treatment with rivaroxaban, an oral factor Xa inhibitor, may result in a lower risk of recurrent stroke than aspirin. METHODS We compared the efficacy and safety of rivaroxaban (at a daily dose of 15 mg) with aspirin (at a daily dose of 100 mg) for the prevention of recurrent stroke in patients with recent ischemic stroke that was presumed to be from cerebral embolism but without arterial stenosis, lacune, or an identified cardioembolic source.The primary efficacy outcome was the first recurrence of ischemic or hemorrhagic stroke or systemic embolism in a time-to-event analysis; the primary safety outcome was the rate of major bleeding. RESULTS A total of 7213 participants were enrolled at 459 sites; 3609 patients were randomly assigned to receive rivaroxaban and 3604 to receive aspirin. Patients had been followed for a median of 11 months when the trial was terminated early because of a lack of benefit with regard to stroke risk and because of bleeding associated with rivaroxaban.The primary efficacy outcome occurred in 172 patients in the rivaroxaban group (annualized rate, 5.1%) and in 160 in the aspirin group (annualized rate, 4.8%) (hazard ratio, 1.07; 95% confidence interval [CI], 0.87 to 1.33; P = 0.52). Recurrent ischemic stroke occurred in 158 patients in the rivaroxaban group (annualized rate, 4.7%) and in 156 in the aspirin group (annualized rate, 4.7%). Major bleeding occurred in 62 patients in the rivaroxaban group (annualized rate, 1.8%) and in 23 in the aspirin group (annualized rate, 0.7%) (hazard ratio, 2.72; 95% CI, 1.68 to 4.39; P<0.001). CONCLUSIONS Rivaroxaban was not superior to aspirin with regard to the prevention of recurrent stroke after an initial embolic stroke of undetermined source and was associated with a higher risk of bleeding.
AB - BACKGROUND Embolic strokes of undetermined source represent 20% of ischemic strokes and are associated with a high rate of recurrence. Anticoagulant treatment with rivaroxaban, an oral factor Xa inhibitor, may result in a lower risk of recurrent stroke than aspirin. METHODS We compared the efficacy and safety of rivaroxaban (at a daily dose of 15 mg) with aspirin (at a daily dose of 100 mg) for the prevention of recurrent stroke in patients with recent ischemic stroke that was presumed to be from cerebral embolism but without arterial stenosis, lacune, or an identified cardioembolic source.The primary efficacy outcome was the first recurrence of ischemic or hemorrhagic stroke or systemic embolism in a time-to-event analysis; the primary safety outcome was the rate of major bleeding. RESULTS A total of 7213 participants were enrolled at 459 sites; 3609 patients were randomly assigned to receive rivaroxaban and 3604 to receive aspirin. Patients had been followed for a median of 11 months when the trial was terminated early because of a lack of benefit with regard to stroke risk and because of bleeding associated with rivaroxaban.The primary efficacy outcome occurred in 172 patients in the rivaroxaban group (annualized rate, 5.1%) and in 160 in the aspirin group (annualized rate, 4.8%) (hazard ratio, 1.07; 95% confidence interval [CI], 0.87 to 1.33; P = 0.52). Recurrent ischemic stroke occurred in 158 patients in the rivaroxaban group (annualized rate, 4.7%) and in 156 in the aspirin group (annualized rate, 4.7%). Major bleeding occurred in 62 patients in the rivaroxaban group (annualized rate, 1.8%) and in 23 in the aspirin group (annualized rate, 0.7%) (hazard ratio, 2.72; 95% CI, 1.68 to 4.39; P<0.001). CONCLUSIONS Rivaroxaban was not superior to aspirin with regard to the prevention of recurrent stroke after an initial embolic stroke of undetermined source and was associated with a higher risk of bleeding.
KW - Aged
KW - Aspirin/adverse effects
KW - Brain Ischemia/prevention & control
KW - Factor Xa Inhibitors/adverse effects
KW - Female
KW - Hemorrhage/chemically induced
KW - Humans
KW - Intracranial Embolism/drug therapy
KW - Kaplan-Meier Estimate
KW - Male
KW - Middle Aged
KW - Platelet Aggregation Inhibitors/adverse effects
KW - Rivaroxaban/adverse effects
KW - Secondary Prevention/methods
KW - Stroke/etiology
U2 - 10.1056/nejmoa1802686
DO - 10.1056/nejmoa1802686
M3 - Journal article
C2 - 29766772
SN - 0028-4793
VL - 378
SP - 2191
EP - 2201
JO - The New England Journal of Medicine
JF - The New England Journal of Medicine
IS - 23
ER -