With breakthroughs in molecular engineering and antibody humanization, monoclonal antibodies (mAbs) are one of the fastest-growing classes of biopharmaceuticals for most clinical indications. In 2017, 10 therapeutic monoclonal antibodies were approved in the EU or US with nine additional candidates under regulatory review and 60 in phase III clinical trials 1. mAbs are the backbone of many treatment modalities including unconjugated therapeutic antibodies, antibody drug conjugates, bispecific antibodies and CAR-T cell therapy. Many of the approved antibody drugs engage the…