Brivanib, a dual FGF/VEGF inhibitor, is active both first and second line against mouse pancreatic neuroendocrine tumors developing adaptive/evasive resistance to VEGF inhibition.

ABSTRACT:

Purpose

Preclinical trials of a mouse model of pancreatic neuroendocrine tumors (PNET) were conducted to determine whether dual FGF/VEGF pathway inhibition with brivanib can improve first-line efficacy in comparison with VEGF inhibitors lacking fibroblast growth factor (FGF)-inhibitory activity and to characterize second-line brivanib activity before and after the onset of evasive resistance to VEGF-selective therapy.

Experimental design

An anti-VEGFR2 monoclonal antibody (DC101), an inhibitor of FGF signaling (FGF ligand trap), sorafenib, and brivanib were comparatively evaluated in first-line monotherapy in short and longer term fixed endpoint intervention trials in the RIP-Tag2 mouse model of PNET. Brivanib was also tested second line aiming to block adaptive resistance t

SUBMITTER: Allen E 

PROVIDER: S-EPMC3156934 | biostudies-literature | 2011 Aug

REPOSITORIES: biostudies-literature