Indirect comparison of dabigatran, rivaroxaban, apixaban and edoxaban for the treatment of acute venous thromboembolism

J Thromb Thrombolysis. 2015 Feb;39(2):155-65. doi: 10.1007/s11239-014-1102-5.

Abstract

Four target-specific oral anticoagulants (TSOA's) have been compared to a vitamin K antagonist for the treatment of acute venous thromboembolism (VTE): dabigatran (D), rivaroxaban (R), apixaban (A) and edoxaban (E). We performed an indirect comparison of the TSOA's, based on the six phase III trials identified (RE-COVER I, RE-COVER II, EINSTEIN-DVT, EINSTEIN-PE, AMPLIFY and Hokusai-VTE). There was no statistically significant difference in risk of recurrent VTE or all-cause mortality between the TSOA's. For major bleeding, the RR of an event was 0.42 (95% CI 0.21-0.87, p = 0.02) for A versus D, compared with 0.57 (95% CI 0.29-1.15, p = 0.12) for A versus R, 0.37 (95% CI 0.19-0.73, p < 0.001) for A versus E, 0.74 (95% CI 0.42-1.30, p = 0.30) for R versus D, 0.64 (95% CI 0.38-1.08, p = 0.10) for R versus E and 1.15 (95% CI 0.66-2.00, p = 0.62) for E versus D. For the composite endpoint of major or clinically relevant nonmajor bleeding, the RR was 0.71 (95% CI 0.53-0.96, p = 0.02) for A versus D, 0.47 (95% CI 0.37-0.61, p < 0.001) for A versus R, 0.54 (95% CI 0.42-0.70, p < 0.001) for A versus E, 1.50 (95% CI 1.17-1.92, p = 0.001) for R versus D, 1.15 (95% CI 0.95-1.39, p = 0.16) for R versus E and 1.31 (95% CI 1.02-1.68, p = 0.04) for E versus D. Overall, apixaban appears to be associated with a lower risk of bleeding than the other TSOA's. This analysis may be helpful to the clinician in trying to balance risk versus benefit in selecting a new anticoagulant. A dedicated randomized trial directly comparing the new agents would be required to confirm these results.

Publication types

  • Meta-Analysis

MeSH terms

  • Acute Disease
  • Adult
  • Aged
  • Anticoagulants / administration & dosage
  • Anticoagulants / adverse effects
  • Clinical Trials, Phase III as Topic
  • Dabigatran* / administration & dosage
  • Dabigatran* / adverse effects
  • Female
  • Hemorrhage / chemically induced*
  • Hemorrhage / prevention & control
  • Humans
  • Male
  • Middle Aged
  • Outcome Assessment, Health Care
  • Pulmonary Embolism* / diagnosis
  • Pulmonary Embolism* / drug therapy
  • Pulmonary Embolism* / mortality
  • Pyrazoles* / administration & dosage
  • Pyrazoles* / adverse effects
  • Pyridines* / administration & dosage
  • Pyridines* / adverse effects
  • Pyridones* / administration & dosage
  • Pyridones* / adverse effects
  • Recurrence
  • Risk Assessment
  • Rivaroxaban* / administration & dosage
  • Rivaroxaban* / adverse effects
  • Survival Analysis
  • Thiazoles* / administration & dosage
  • Thiazoles* / adverse effects
  • Venous Thrombosis* / diagnosis
  • Venous Thrombosis* / drug therapy
  • Venous Thrombosis* / mortality

Substances

  • Anticoagulants
  • Pyrazoles
  • Pyridines
  • Pyridones
  • Thiazoles
  • apixaban
  • Rivaroxaban
  • Dabigatran
  • edoxaban