EGFR and familial pancreatic carcinoma: The targeted toxin 425(scFv)‐ETA, consisting of an anti‐EGFR single‐chain Fv antibody fused to a truncated Pseudomonas exotoxin, was strongly cytotoxic toward metastatic pancreatic cancer cells (L3.6pl) with an IC50 of 0.1 nm (Bruell et al., 2003).