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Wells G, Coyle D, Cameron C, et al. Safety, Effectiveness, and Cost-Effectiveness of New Oral Anticoagulants Compared with Warfarin in Preventing Stroke and Other Cardiovascular Events in Patients with Atrial Fibrillation [Internet]. Ottawa (ON): Canadian Agency for Drugs and Technologies in Health; 2012 Apr 9.

Cover of Safety, Effectiveness, and Cost-Effectiveness of New Oral Anticoagulants Compared with Warfarin in Preventing Stroke and Other Cardiovascular Events in Patients with Atrial Fibrillation

Safety, Effectiveness, and Cost-Effectiveness of New Oral Anticoagulants Compared with Warfarin in Preventing Stroke and Other Cardiovascular Events in Patients with Atrial Fibrillation [Internet].

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7.8Included and Excluded Studies

7.8.1. List of included studies (n = 15)

Table 43Included Studies

Unique RCTCompanion or Subgroup
Studies
Updated or
Readjudicated data
Other
PETRO
Ezekowitz et al., 200710
RE-LY
Connolly et al.al., 20099
Eikelbloom et al, 201175
Oldgren et al., 201181
Ezekowitz et al., 201076
Wallentin et al., 201082
Connolly 201074
Supplemental. appendix available online with main RCT publication at NEJMFDA Report, 201079
ARISTOTLE
Granger et al., 201111
Wallentin, 2011 (PPT)83
ARISTOTLE-J Ogawa et al., 201112
ROCKET-AF
Patel et al., 201113
Fox et al., 201177
Mahaffey and Fox, 2010 (PPT)78
Supplemental appendix available online with main RCT publication at NEJM*FDA Report, 201180

FDA = Food and Drug Administration; NEJM = New England Journal of Medicine; RCT = randomized controlled trial.

*

Not included in reference count for PRISMA

7.8.2. List of excluded studies (n=51)

Table 44Excluded Studies

Author, YearFull Citation
Review or commentary (n = 5)
Augoustides et al., 2011Augoustides JG. Advances in anticoagulation: focus on dabigatran, an oral direct thrombin inhibitor. J Cardiothorac Vasc Anesth. 2011;25(6):1208–12.
Camm, 2009Camm AJ. The RE-LY study: Randomized evaluation of long-term anticoagulant therapy: dabigatran vs. warfarin. Eur Heart J. 2009;30(21):2554–55.
Battistelli et al., 2009Battistelli S, Genovese A, Gori T. Heparin-induced thrombocytopenia in surgical patients. Am J Surg. 2010;199(1):43–51.
Aymanns, 2010Aymanns C, Keller F, Maus S, et al. Review on pharmacokinetics and pharmacodynamics and the aging kidney. Clin J the Am Soc Nephrol. 2010;5(2):314–27.
Hankey, 2009Hankey GJ. At last, a RE-LYable alternative to warfarin for atrial fibrillation. Int J stroke. 2009;4(6):454–5.
Population not of interest (n = 5)
Huang et al., 2011Huang J, Cao Y, Liao C, et al. Apixaban versus enoxaparin in patients with total knee arthroplasty. A meta-analysis of randomized trials. Thromb Haemost. 2011;105(2):245–53.
Barrett et al., 2003Barrett YC, Wang J, Knabb R, et al. Apixaban decreases coagulation activity in patients with acute deep-vein thrombosis. Thromb Haemost. 2003;105(1):181–9.
Bauer et al., 2009 (poster)Bauer KA, Turpie AGG, Lassen MR, et al. Effects of age, weight, gender and renal function in a pooled analysis of four rivaroxaban studies. Poster presented at: 22nd Congress of the International Society on Thrombosis and Haemostasis; 2009 Jun 11–18; Boston, MA.
Lassen et al., 2008Lassen MR, Ageno W, Borris LC, et al. Rivaroxaban versus enoxaparin for thromboprophylaxis after total knee arthroplasty. N Engl J Med. 2008;358(26):2776–86.
Berges et al., 2007Berges A, Laporte S, Epinat M, et al. Anti-factor Xa activity of enoxaparin administered at prophylactic dosage to patients over 75 years old. Br J Clin Pharmacol. 2007;64(4):428–38.
Study design not of interest (n = 25)
Banerjee et al., 2011Banerjee A, Marin F, Lip GY. A new landscape for stroke prevention in atrial fibrillation: focus on new anticoagulants, antiarrhythmic drugs, and devices. Stroke. 2011;42(11);3316–22.
Roskell et al., 2010Roskell NS, Lip GY, Noack H, et al. Treatments for stroke prevention in atrial fibrillation: a network meta-analysis and indirect comparisons versus dabigatran etexilate. Thromb Haemost. 2010;104(6):1106–15.
Ezekowitz et al., 2011Ezekowitz MD, Nagarakanti R. Dabigatran in atrial fibrillation: pharmacology and clinical trials. J Interv Card Electrophysiology. 2011;32(3):173–80.
Atay et al., 2011 (poster)Atay J, Fiumara K, Piazza G, et al. Cost analysis of substituting dabigatran for warfarin in an anticoagulation management service. JACC. 2011;57(14 Suppl):E1188. (Poster presented at: ACC.11 & i2 60th Annual Scientific Session and Expo; 2011 Apr 2–5; New Orleans, LA).
Beyer-Westendorf et al., 2011Beyer-Westendorf J, Buller H. External and internal validity of open label or double-blind trials in oral anticoagulation: better, worse or just different? J Thromb Haemost. 2011;9(11):2153–8.
Camm et al., 2011Camm AJ, Bounameaux H. Edoxaban: a new oral direct factor Xa inhibitor. Drugs. 2011;71(12):1503–26.
Cooper et al., 2009Cooper NJ, Sutton AJ, Morris D, et al. Addressing between-study heterogeneity and inconsistency in mixed treatment comparisons: application to stroke prevention treatments in individuals with non-rheumatic atrial fibrillation. Stat Med. 2009;28(14):1861–81.
Cooper et al., 2011Cooper PC, Coath FL, Daly M, et al. Assessment of antithrombin deficiency in the real world. Int J Lab Hematol. 2011;33(6):659–60.
Deremer et al., 2011Deremer CE, Gujral JS, Thornton JW, et al. Dabigatran falsely elevates point of care international normalized ratio results. Am J Med. 2011;124(9):e5–6.
Ezekowitz et al., 2009Ezekowitz MD, Connolly S, Parekh A, et al. Rationale and design of RE-LY: randomized evaluation of long-term anticoagulant therapy, warfarin, compared with dabigatran. Am Heart J. 2009;157(5):805–10.
Freeman et al., 2004Freeman JV, Zhu RP, Owens DK, et al. Cost-effectiveness of dabigatran compared with warfarin for stroke prevention in atrial fibrillation. Ann Intern Med. 2004;154(1):1–11.
From et al., 2002From AM, Hoganson DD, Erwin PJ. Does a longer duration of oral factor Xa therapy increase the risk of bleeding or transaminitis? Thromb Res. 2002;127(3):2–209.
Gage, 2011Gage L. Dabigatran in Patients With Nonvalvular Atrial Fibrillation. J Am Coll Cardiol. 2011;58(5):551.
Garcia et al., 2010Garcia D, Libby E, Crowther MA. The NOAC. Blood. 2010;115:15–20.
Hankey et al., 2011Hankey GJ, Eikelboom JW. Dabigatran etexilate: a new oral thrombin inhibitor. Circ. 2011;123:1436–50.
Holmes, 2010Holmes DR. Atrial fibrillation and stroke management: present and future. Semin Neurol. 2010;30(5):528–36.
Nutescu, 2009Nutescu E. A pound of cure: prevention of ischemic stroke in atrial fibrillation. Pharm Times. 2009;75(12):110–9.
Patel et al., 2009Patel M, Becker R, Breithardt G, et al. Rationale and design of the ROCKET-AF study: comparison of rivaroxaban with warfarin for the prevention of stroke and SE in patients with atrial fibrillation. Eur Heart J. 2009;30:705. (Presented at: European Society of Cardiology, ESC Congress; 2009 Aug 29 to Sep 2; Barcelona, Spain).
Pengo et al,. 2011Pengo V, Crippa L, Falanga A, et al. Questions and answers on the use of dabigatran and perpectives on the use of other NOAC in patients with atrial fibrillation; a consensus document of the Italian federation of thrombosis centers (FCSA). Thromb Haemost. 2011;106(5):868–76.
Becker et al., 2010Becker R, Berkowitz SC, Breithardt G, et al. Rivaroxaban-once daily, oral, direct factor Xa inhibition compared with vitamin K antagonism for prevention of stroke and embolism trial in atrial fibrillation: rationale and design of the ROCKET-AF study. Am Heart J. 2010;159(3):340–7e1.
Shah et al., 2011Shah SV, Gage BF. Cost-effectiveness of dabigatran for stroke prophylaxis in atrial fibrillation. Circ. 2011;123(22):2562–70.
Siddiqui et al., 2008Siddiqui FA, Ehrinpreis MN, Janisse J, et al. Demographics of a large cohort of urban chronic hepatitis C patients. Hepatol Int. 2008 Sep;2(3):376–81.
Sorensen et al., 2011Sorensen SV, Kansal AR, Connolly S, et al. Cost-effectiveness of dabigatran etexilate for the prevention of stroke and SE in atrial fibrillation: a Canadian payer perspective. Thromb Haemost. 2011;105(5):908–19.
Steffel et al., 2011Steffel J, Braunwald E. Novel oral anticoagulants: focus on stroke prevention and treatment of venous thrombo-embolism. Eur Heart J. 2011;32:1968–76.
Wyse, 2007Wyse DG. Bleeding while starting anticoagulation for thromboembolism prophylaxis in elderly patients with atrial fibrillation: from bad to worse. Circ. 2007;115(21):2684–86.
Comparator not of interest (n = 1)
Connolly et al., 2011Connolly SJ, Eikelboom J, Joyner C, et al. Apixaban in patients with atrial fibrillation. N Engl J Med. 2011;364(9):806–17.
Outcome not of interest (n = 1)
Braidy et al., 2011Braidy N, Bui K, Bajorek B. Evaluating the impact of new anticoagulants in the hospital setting. Pharm Prac. 2011;9(1):1–10.
Intervention not of interest (n = 1)
Flaker et al., 2006Flaker GC, Gruber M, Connolly SJ, et al. Risks and benefits of combining aspirin with anticoagulant therapy in patients with atrial fibrillation: an exploratory analysis of stroke prevention using an oral thrombin inhibitor in atrial fibrillation (SPORTIF) trials. Am Heart J. 2006;152(5):967–73.
Subgroup – population or outcome not of interest, no useable data (n = 14)
Hori et al., 2011Hori M, Connolly SJ, Ezekowitz MD, et al. Efficacy and safety of dabigatran vs. warfarin in patients with atrial fibrillation — sub-analysis in Japanese population in RE-LY trial. Circ J. 2011;75(4):800–5.
Chung et al., 2011Chung N, Jeon HK, Lien LM, et al. Safety of edoxaban, an oral factor Xa inhibitor, in Asian patients with non-valvular atrial fibrillation. Thromb & Haemost. 2011;105(3):535–44.
Diener et al., 2010Diener HC, Connolly SJ, Ezekowitz MD, et al. Dabigatran compared with warfarin in patients with atrial fibrillation and previous transient ischaemic attack or stroke: a subgroup analysis of the RE-LY trial. Lancet Neurol. 2010;9(12):1157–63.
Panichpisal et al., 2011Panichpisal K, Szarek M, Sareen A. Dabigatran for stroke prevention in patients with atrial fibrillation and previous stroke or transient ischemic attack: does dose matter? Future Neurol. 2011;6(2):155–8.
Nagarakanti et al., 2011Nagarakanti R, Ezekowitz MD, Oldgren J, et al. Dabigatran versus warfarin in patients with atrial fibrillation: An analysis of patients undergoing cardioversion. Circ. 2011;123(2):131–6.
Eikelboom et al., 2010 (conference abstract)Eikelboom J, Hijazi Z, Oldgren J, et al. D-dimer is prognostic for stroke, major bleeding and death during anticoagulation of atrial fibrillation — a RE-LY substudy; Circ 2010; 122 (21 Suppl): A18321. (Abstract presented at: American Heart Association (AHA) Scientific Sessions 2010; 2010 Nov 13–17; Chicago, IL).
Flaker et al., 2011 (poster)Flaker GC, Reilly P, Yusuf S, et al. Dabigatran etexilate versus warfarin in patients with different types of atrial fibrillation: A RE-LY subgroup analysis. J Am Coll Cardiol. 2011; 57(14 Suppl): E62. (Poster presented at: ACC.11 & i2 American College of Cardiology's 60th Annual Scientific Session and Expo; 2011 Apr 2 to 5; New Orleans, LA).
Ferreiral et al., 2011Ferreiral J, Ezekowitz MD, Connolly SJ, et al. Dabigatran compared with warfarin in patients with atrial fibrillation and symptomatic heart failure: a subgroup analysis of the RE-LY trial. Circ. 2011;124(21 Suppl):A10956. (Abstract presented at: American Heart Association (AHA) Scientific Sessions 2011; 2011 Nov 12 to 16; Orlando, FL).
Healey et al., 2010 (poster)Healey JS, Eikelboom J, Wallentin L, et al. Effect of age and renal function on the risks of stroke and major bleeding with dabigatran compared to warfarin: an analysis from the RE-LY study. J Am Coll Cardiol. 2010;55(10A):A4.E37. (Poster presented at: ACC.10 & i2 American College of Cardiology's 59th Annual Scientific Session and Expo; 2010 Mar 14 to 16; Atlanta, GA).
Koti et al., 2010 (poster)Koti MJ, Parekh A, Connolly SJ, et al. Dabigatran versus warfarin in patients with atrial fibrillation — an analysis of patients undergoing cardioversion. J Am Coll Cardiol. 2010;55(10A):A4.E40. (Poster session presented at: ACC.10 & i2 American College of Cardiology's 59th Annual Scientific Session and Expo; 2010 Mar 14 to 16; Atlanta, GA).
Nagarakanti et al., 2008Nagarakanti R, Ezekowitz MD, Parcham-Azad K, et al. Long-term open label extension of the prevention of embolic and thrombotic events on dabigatran in atrial fibrillation (PETRO- Ex study). Circ. 2008;118(18 Suppl):S_922. (Abstract presented at: American Heart Association (AHA) Scientific Sessions 2008; 2008 Nov 8 to 12; New Orleans, LA).
Oldgren et al., 2010 (poster)Oldgren J, Alings M, Darius H, et al. Dabigatran versus warfarin in atrial fibrillation patients with low, moderate and high CHADS2 score: a RE-LY subgroup analysis. J Am Coll Cardiol. 2010;55(10A):A1.E2. (Oral session presented at: ACC.10 & i2 American College of Cardiology's 59th Annual Scientific Session and Expo; 2010 Mar 14 to 16; Atlanta, GA.)
Uchino et al., 2011Uchino K, Hernandez AV. Dabigatran is associated with higher risk of MI or acute coronary syndromes: a meta-analysis of non-inferiority randomized controlled trials. Circ. 2011;124(21 Suppl):A15500. (Abstract presented at: American Heart Association (AHA) Scientific Sessions 2011; 2011 Nov 12–16; Orlando, FL.)
Copyright © 2012 Canadian Collaborative for Drug Safety, Effectiveness and Network Meta-Analysis.

Except where otherwise noted, this work is distributed under the terms of a Creative Commons Attribution-NonCommercial- NoDerivatives 4.0 International licence (CC BY-NC-ND), a copy of which is available at http://creativecommons.org/licenses/by-nc-nd/4.0/

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