Past Events
Explore content from past European OHDSI symposia to understand what has engaged the community over the years.

Symposium 2025
Join the Network: Advancing Real-World Evidence in Europe
Hosted in Hasselt, the 2025 symposium focused on operationalizing federated data networks, aligning with the European Health Data Space, and accelerating scalable real-world evidence across Europe.

Symposium 2024
Scaling up Reliable Evidence across Europe
The 2024 edition highlighted the expansion of OMOP-based data networks, real-world European use cases, and the application of OHDSI methods and tools to deliver large-scale evidence through EHDEN and DARWIN EU.

Symposium 2023
Full Steam Ahead!
Building on the renewed in-person momentum, the 2023 symposium focused on accelerating progress. It highlighted advancements in OHDSI methods & tools, strengthened community collaboration, and showcased mature, real-world European research using OMOP data networks.

Symposium 2022
We’ll meet again for one journey ahead
The 2022 symposium marked the long-awaited return to in-person collaboration following COVID-19. It brought the community back together to reconnect, share national OMOP implementations, and re-establish momentum in methods development and real-world evidence generation.

Symposium 2019
The Journey from Data to Evidence
This second edition emphasized the path from harmonized data to reproducible, trustworthy evidence, showcasing the implementation of OMOP and OHDSI methods within an open and collaborative European research network.

Symposium 2018
Bridging Europe
The inaugural European OHDSI Symposium established a strong foundation for continental collaboration by bringing together stakeholders to address the opportunities and challenges of adopting the OMOP Common Data Model in Europe.