nebacumab nebacumab nebacumab is a human monoclonal antibody developed for the treatment of sepsis. it has been withdrawn in 1993 because it failed to reduce mortality in clinical trials. nebacumabmonoclonal antibodytypewhole antibodysourcehumantargetendotoxinclinical dataahfs/drugs.cominternational drug namesatc codej06bc01 (who) identifierscas number138661-01-5 nchemspidernoneunii908fwn27wkkeggd05126 y ny (what is this?) (verify)