ERBB2 and cancer: Nevertheless, antibody‐based therapy of cancer has achieved significant success in the last years and MABs against EGFR (cetuximab, panitumumab) [29], ERBB2 (trastuzumab, pertuzumab) [29], and ERBB3 (patritumab, seribantumab, lumretuzumab) [30] are used to treat various type of cancer.