Journal of Thrombosis and Thrombolysis

, Volume 47, Issue 1, pp 80–86 | Cite as

Effect of a new inhibitor of factor Xa zifaxaban, on thrombosis in the inferior vena cava in rabbits

  • Xiaomiao Qiu
  • Junjun Zhou
  • Weiting Wang
  • Zhuanyou Zhao
  • Lida Tang
  • Shuangyong SunEmail author


In recent years, oral factor Xa inhibitors have become a research focus as anticoagulant drugs. Zifaxaban is the first oral FXa inhibitor to enter clinical trials in China. The aim of this study was to determine the inhibitory effect of zifaxaban on thrombosisthrough a model ofinferior vena cava (IVC) thrombosis in rabbits. IVC thrombosis model was established by electrical injury and stenosis, and zifaxaban was administered (p.o.) for 5 consecutive days, then coagulation indicators and bleeding were observed. The results showed that zifaxaban had obvious inhibitory effects on FXa, and had a significant inhibitory effect on IVC thrombosis induced by electrical damage and stenosis. The effect of zifaxaban was similar to that of rivaroxaban, but the bleeding side-effects of zifaxaban were less severe than those of rivaroxaban. Zifaxaban could prolong the prothrombin time and activated partial thromboplastin time of plasma similar to that of other oral FXa inhibitors. Zifaxaban had a significant inhibitory effect on FXa, but it had no obvious effect on other coagulation factors, major anticoagulant factors or fibrinolytic indices. Our results suggest that zifaxaban had specific inhibitory effects on FXa and inhibited IVC thrombosis in rabbits with its hemorrhagic effect was less than that of rivaroxaban. Zifaxaban is ecpected to be developed as a new drug for the prevention of deep venous thrombosis, providing more medication options for patients with such disease, more research is required to support it in the future.


Factor Xa inhibitor Inferior vena cava thrombosis Rabbits Zifaxaban 



This study was supported by the Special Program of Talents Development for Excellent Youth Scholars in Tianjin (TJTZJH-QNBJRC-2-7).

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Ethical approval

All applicable international, national, and/or institutional guidelines for the care and use of animals were followed. All procedures performed in studies involving animals were in accordance with the ethical standards of the institution or practice at which the studies were conducted.


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  • Xiaomiao Qiu
    • 1
  • Junjun Zhou
    • 2
  • Weiting Wang
    • 3
  • Zhuanyou Zhao
    • 3
  • Lida Tang
    • 3
  • Shuangyong Sun
    • 3
    Email author
  1. 1.Tianjin Medical University SchoolTianjinPeople’s Republic of China
  2. 2.Department of PharmacologyDalian Medical UniversityDalianPeople’s Republic of China
  3. 3.Tianjin Institute of Pharmaceutical Research New Drug Evaluation Co.LtdTianjinPeople’s Republic of China

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