tefibazumab tefibazumab tefibazumab (named aurexis but not approved) is a humanized monoclonal antibody for the treatment of severe infections with staphylococcus aureus. possible indications include the treatment of s. aureus in a phase 2a patients with cystic fibrosis and of methicillin-resistant s. aureus. tefibazumabmonoclonal antibodytypewhole antibodysourcehumanized (from mouse)targetclumping factor aclinical datatrade namesaurexisatc codenoneidentifierscas number521079-87-8 nchemspidernoneuniisbo7q9g95rkeggd06054 ychemical and physical dataformulac6548h10122n1730o2034s44molar mass147035.72 g·mol−1 ny (what is this?) (verify) it was developed by inhibitex.