Antibodies have come of age as therapeutics since the late-1990s with 26 antibody therapeutics marketed in the USA and ~300 additional antibodies in clinical development. New therapeutic opportunities for antibodies and engineered targeting molecules will be considered across a broad range of clinical settings including oncology, autoimmunity and chronic inflammation, infectious diseases and neurology. Progress in molecular engineering to increase their clinical potential will be discussed including antibody-drug conjugates, bispecific and multispecific targeting molecules, effector function enhancement and half-life extension. New frontiers will be explored including engineering antibodies to cross the blood brain barrier and tackling fundamental questions in antibody targeting, mechanisms of action and resistance, and immunogenicity of engineered proteins. This symposium will bring together experts from academia and industry, from molecular engineering to biomedical applications, at the forefront of advancing antibodies as drugs and will be of broad interest to scientists working in this area.