Tivozanib

Tivozanib, is a potent, selective, long half-life inhibitor of all three vascular endothelial growth factor (VEGF) receptors that is designed to optimize VEGF blockade while minimizing off-target toxicities.

AVEO remains encouraged by the clinical outcomes from its Phase 2 and Phase 3 studies in renal cell carcinoma and the efficacy and tolerability profile that tivozanib may offer to patients suffering from this challenging disease. In addition, promising biomarker results were observed in a Phase 2 study of tivozanib in colorectal cancer.

In August of 2014, AVEO regained all rights to tivozanib. In November 2014, AVEO entered into an option agreement with Ophthotech to investigate tivozanib for the potential treatment of non-oncologic diseases of the eye, and the Company is actively pursuing partnerships to advance the development of tivozanib in solid tumors.

AVEO is interested in collaborating with potential partners who share our vision for cancer drug development and positively impacting patients’ lives. Please contact AVEO aveobd@aveooncology.com to discuss partnership opportunities with AVEO’s development pipeline.

VEGF in Solid Tumors

The vascular endothelial growth factor (VEGF) pathway plays a significant role in angiogenesis, which is critical in cancer. Angiogenesis, the formation of new blood vessels, is essential for endothelial cell proliferation, migration and survival. There are five known VEGF ligands (A, B, C, D, PLGF) and three VEGF receptors (1, 2 and 3). Each ligand exhibits distinct but overlapping binding profiles for the three VEGF receptors.

To optimally inhibit the VEGF pathway it may be critical to effectively block all three VEGF receptors as each plays an important role in cancer angiogenesis:

  • VEGF receptor 1 is critical for the modulation of endothelial cell survival and vessel morphogenesis;
  • VEGF receptor 2 is thought to be the predominant receptor for endothelial cell proliferation and migration; and,
  • VEGF receptor 3 promotes endothelial sprouting and vascular network formation.

Preclinical studies have demonstrated tivozanib is a potent, selective, long half-life inhibitor of all three VEGF receptors that is designed to optimize VEGF blockade while minimizing off-target toxicities.