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Updated: Jun 20, 2026

Venous Thrombosis Assay in a Mouse Model of Cancer
Published on: January 5, 2024
Thrombotic events in patients with cancer receiving antiangiogenesis agents
Maurizio Zangari1, Louis M Fink, Francesca Elice
1University of Utah, Division of Hematology, Blood/Marrow Transplant and Myeloma Program, Salt Lake City, UT, USA. maurizio.zangari@hsc.utah.edu
Abstract:
Tumor-associated neoangiogenesis has recently become a suitable target for antineoplastic drug development. In this overview, we discuss specific drug-associated hemostatic complications, the already known pathogenetic mechanisms involved, and the effect of varying antithrombotic strategies. Multiple agents with angiogenic inhibitory capacity (thalidomide, lenalidomide, bevacizumab, sunitinib, sorafenib, and sirolimus) have obtained US Food and Drug Administration approval, and many others have entered clinical trials. Arterial and venous thromboembolism and hemorrhage have emerged as significant toxicities associated with the use of angiogenesis inhibitors. We present a detailed analysis of the literature on thrombotic complication of antiangiogenic drugs. Close attention to hemostatic complications during antiangiogenic treatment is warranted. Further studies are required to better understand the pathophysiologic mechanisms involved and to define a safe prophylactic strategy.
Insights
Angiogenesis inhibitors targeting tumor growth can cause bleeding and clotting. Research is needed to understand these risks and develop safe strategies for patients receiving these cancer therapies.
Area of Science:
- Oncology
- Pharmacology
- Hematology
Background:
- Tumor-associated neoangiogenesis is a target for cancer drug development.
- Several anti-angiogenic drugs are approved or in clinical trials.
- These drugs can cause significant bleeding and thromboembolic events.
Purpose of the Study:
- To review drug-associated hemostatic complications of anti-angiogenic therapies.
- To discuss pathogenetic mechanisms and antithrombotic strategies.
- To highlight the need for further research into safe prophylactic strategies.
Main Methods:
- Literature analysis of thrombotic complications associated with anti-angiogenic drugs.
- Review of known pathogenetic mechanisms.
- Discussion of antithrombotic strategies.
Main Results:
- Anti-angiogenic agents are associated with arterial and venous thromboembolism and hemorrhage.
- Multiple approved agents include thalidomide, lenalidomide, bevacizumab, sunitinib, sorafenib, and sirolimus.
- Hemostatic complications are significant toxicities requiring attention.
Conclusions:
- Close attention to hemostatic complications during anti-angiogenic treatment is essential.
- Further studies are required to elucidate pathophysiologic mechanisms.
- Defining safe prophylactic strategies for these complications is necessary.
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