- Prior therapy against VEGF or VEGFRs including, but not limited to bevacizumab, sunitinib, sorafenib, pazopanib, motesanib (AMG706), or cediranib (AZD2171), is permitted so long as the agent does not have any known activity against DLL4 and the last dose received s at least 6 weeks prior to first dose of MEDI0639.