Catalonia is among the top 10 countries in Europe in terms of participation in clinical trials and among the top 20 in the world; looking at oncology alone, it is in the European Top 5 and the global Top 10. This November, Barcelona hosted the international Clinical Trials Europe event: a great time to look back over the factors that have made the BioRegion a benchmark in attracting trials from all the major pharmaceutical companies in the world, and also at the future challenges this sector is facing.