The HMA-EMA Catalogues are repositories of metadata collected on real-world data (RWD) sources and RWD studies to help pharmaceutical companies and researchers  identify and use such data when investigating the use, safety and effectiveness of medicines. The catalogue of RWD sources replaces the ENCePP Resources Database, while the catalogue of RWD studies replaces the EU PAS Register®. Additionally, the lists of Institutions and Networks support the two main catalogues. The new catalogues offer an improved, more efficient service for researchers, regulators, and pharmaceutical companies alike, and aim to:

• Facilitate the discoverability of data sources to generate adequate evidence for regulatory purpose, i.e., the initial identification of data sources suitable to investigate a specific research question;
• Support the assessment of study protocols and study results by providing quick access to information on the suitability of data source(s) proposed to be used in the study protocol or referred to in the study report;
• Improve interoperability between studies and data sources;
• Improve transparency.

The catalogues are fully searchable, and the data available in the registered entities can be exported.