The use of radiopharmaceuticals is an important tool not only for management of diseases and dysfunctions, but also for better understanding human diseases and developing effective treatment options, such as in the case of neurology. In this context, there is concern of continuous, impressive progress in nuclear medicine which is linked to the development of new radiopharmaceuticals and efficient production of relevant radioisotopes. These proceedings highlight the main findings and developments discussed during the International Symposium on Trends in Radiopharmaceuticals. They cover the key issues and advances in the field of radiopharmaceuticals from development, production, and use of diagnostic, therapeutic, and theranostic radioisotopes and radiopharmaceuticals, as well as regulatory and licensing issues related to their production. Additional topics addressed were education, certification and training methodologies. A supplementary file contains the detailed programme of the symposium and the abstracts of all oral and poster presentations.