Challenges and limitations of ADC development
One of the major challenges of modern medicine is to find a safe cancer therapy. The Food and Drug Administration has approved Adcetris® (brentuximab vedotin) and Kadcyla® (ado-trastuzumab emtansine) that are considered as powerful treatments against cancer. They are good examples of antibody-drug conjugates (ADCs). The principle is to link a drug, that can be cytotoxic, to an antibody able to target cancer cells. Unfortunately, the development of ADCs faces some difficulties. Indeed, depending on the method for the conjugation, the ADC can be highly heterogenous.