European Clinical Research Infrastructures Network (ECRIN) is a sustainable, not-for-profit network supporting multinational clinical research projects in Europe. ECRIN is a project of European Union Seventh Framework Programme.

ECRIN provides information, consulting and services to investigators and sponsors in the preparation and in the conduct of multinational clinical studies, for any category of clinical research and in any disease area. This is particularly relevant for investigator-initiated or small and medium enterprise-sponsored clinical trials, and for clinical research on rare diseases where international cooperation is a key success factor.

ECRIN is connected to the national networks of clinical trial centres and clinical research units, such as TUCRIN.