Tyrosine kinase inhibitor of VEGFR-1, VEGFR-2, VEGFR-3, PDGFR-a/beta, and c-kit
REVIEW Votrient (pazopanib) is a vascular epidermal growth factor receptor (VEGFR) tyrosine kinase inhibitor which acts at all three isoforms: VEGFR-1, VEGFR-2 and VEGFR-3. VEGF is a chemical signal produced by cells that stimulates the growth of new blood vessels. It is part of the system that restores the oxygen supply to tissues when blood circulation is inadequate. When VEGF is overexpressed, it can contribute to disease. Solid cancers need an adequete blood supply or they will not be able to grow. Hence, cancer that can express VEGF are able to grow and metastasize.
Sleijfer, S.; Ray-Coquard, I.; Papai, Z.; Le Cesne, A.; Scurr, M.; Schoffski, P.; Collin, F.; Pandite, L. et al. (2009). Pazopanib, a Multikinase Angiogenesis Inhibitor, in Patients with Relapsed or Refractory Advanced Soft Tissue Sarcoma: A Phase II Study from the European Organisation for Research and Treatment of Cancer-Soft Tissue and Bone Sarcoma Group (EORTC Study 62043). Journal of Clinical Oncology 27 (19): 3126. doi:10.1200/JCO.2008.21.3223. PMID 19451427
Tran HT, Liu Y, Zurita AJ, Lin Y, Baker-Neblett KL, Martin AM, Figlin RA, Hutson TE, Sternberg CN, Amado RG, Pandite LN, Heymach JV (2012). Prognostic or predictive plasma cytokines and angiogenic factors for patients treated with pazopanib for metastatic renal-cell cancer: a retrospective analysis of phase 2 and phase 3 trials. Lancet Oncol. 13(8):827-37. PMID 22759480.
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