The International Symposium on Radiopharmaceutical Therapy, organized by WARMTH (The World Association of Radiopharmaceutical and Molecular Therapy), will be held in Helsinki, Finland, November 18-20, 2018. The Organizing Committee, chaired by Prof. Kalevi Kairemo (Docrates Cancer Center), has chosen Helsinki Congress Paasitorni to be the congress venue. A total of 200 experts from all over the world are expected to participate in the congress. Warmly welcome to Paasitorni, ISRT 2018!