New antiangiogenics in non-small cell lung cancer treatment: Vargatef™ (BIBF 1120) and beyond
Bruno Gori1, Serena Ricciardi1, Alberto Fulvi1, Salvatore Intagliata2, Ester Del Signore1, Filippo de Marinis1
1Oncological-Pulmonary Unit 1st, San Camillo Hospital, Rome, Italy; 2Department of Medical Oncology, University Campus Bio-Medico, Rome, Italy
Abstract: Lung cancer is the leading cause of mortality worldwide. Non-small cell lung cancer (NSCLC) is a particularly aggressive cancer, the optimum management of which is still being determined. In the metastatic disease, the standard therapy is a platinum-based combination chemotherapy; however, in spite of available treatment options for patients who progress beyond first-line therapy, prognosis remains poor. Angiogenesis is a tightly regulated process which comprises a complex, complementary, and overlapping network. Inhibition of tumor-related angiogenesis has become an attractive target for anticancer therapy. Antiangiogenic strategy includes: monoclonal antibodies against vascular endothelial growth factor (VEGF) and VEGF receptor (VEGFR), small molecule inhibitors of VEGF tyrosine kinase activity, VEGF Trap, and a new class named “vascular disrupting agents,” tested in ongoing clinical trials which will further define their role in the management of NSCLC. BIBF 1120 is an investigational orally administered receptor tyrosine kinase inhibitor that has shown antiangiogenic and antineoplastic activity, inhibiting VEGFR, platelet-derived growth factor receptor, and fibroblast growth factor receptor tyrosine kinases, preventing tumor growth and interfering with the angiogenesis-signaling cascade and overcoming drug resistances.
Keywords: NSCLC, angiogenesis, oral antiangiogenic agents, VEGF, PDGF, FGF
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