The IPIC Congress is organised by the International Patient Organisation for Primary Immunodeficiencies (IPOPI). IPOPI is a non-profit international organisation and the leading advocate for primary immunodeficiency (PID) patients worldwide working in collaboration with patients, doctors, politicians, regulators, the pharmaceutical industry and other relevant stakeholders. IPOPI is the Association of national PID patient organisations dedicated to improving awareness, access to early diagnosis and optimal treatments for primary immunodeficiency patients worldwide through global collaboration.