A Phase 3 trial of a medicine for primary immune thrombocytopenia (ITP), an autoimmune disorder that can lead to excessive bleeding and anaemia, has failed to meet its primary and secondary endpoints, the developer argenx SE announced on 28 November. The drug, Vyvgart Hytrulo (efgartigimod alfa), is an antibody fragment targeting the neonatal Fc receptor. Vyvgart has been approved in the US for generalised myasthenia gravis, another autoimmune disease, in both intravenous and subcutaneous formulations.
