Spain leads the EU in clinical trials, according to 2025 approval data that show that nearly 1,000 studies were greenlit in the country last year. Spain also managed to attract a significant number of multinational clinical trials, with 758 of the approved studies being carried out at research sites in multiple countries. Related:Julius Clinical sets up shop in ‘ideal hubs’ Spain and GermanyTherapeutic areasThe AEMPS analysis also looked at the types of studies being conducted in Spain and found that oncology is a major area of activity. Early phase studiesThe number of early phase studies also increased in 2025, continuing the trend seen over the past decade. In 2015, 156 Phase I and Phase I/II trials were authorized.