Linifanib (ABT-869)是一种新型，有效，ATP竞争性VEGFR/PDGFR抑制剂，同时抑制KDR， CSF-1R， Flt-1/3和PDGFRβ，其IC50分别为4 nM， 3 nM， 3 nM/4 nM和66 nM ，对具有突变激酶依赖性的癌细胞（即FLT3）最有效。Phase 3。A VEGF (Flk/Flt) and PDGFR inhibitor. Linifanib (ABT-869) is a novel, potent ATP-competitive VEGFR/PDGFR inhibitor for KDR, CSF-1R, Flt-1/3 and PDGFRβ with IC50 of 4 nM, 3 nM, 3 nM/4 nM and 66 nM respectively, mostly effective in mutant kinase-dependent cancer cells (i.e. FLT3). Phase 3. A VEGF (Flk/Flt) and PDGFR inhibitor.