Dec. 9, 2025
Patrick Ryan led the Dec. 9 community call to reflect on the progress through 2025, including the successes, challenges and focuses moving forward. This session included:
• a look at events around the world, including new events in Africa, Sweden and Canada
• a LLM-aided synopsis of 700+ notes shared by the community at the global symposium highlighting current work and future goals
• results from a workgroup survey noting both successes and future endeavors
• a Top 10 list of OHDSI accomplishments in 2025
The video presentation, along with accompanying slides, is available below.
Community Updates
• Congratulations to the team of Patricia Pedregal-Pascual, Carlos Guarner-Argente, Eng Hooi Tan, Asieh Golozar, Talita Duarte-Salles, Andreas Weinberger Rosen, Antonella Delmestri, Wai Yi Man, Edward Burn, Daniel Prieto-Alhambra, and Danielle Newby on the recent publication of Incidence and Survival of Colorectal Cancer in the United Kingdom From 2000 to 2021: A Population-Based Cohort Study in the American Journal of Gastroenterology.
• The OHDSI India Symposium (Dec. 2) and the OHDSI APAC Symposium (Dec. 6-7) were both held over the last week. Thank you to everybody who collaborated to lead both events.
• The 12th annual OHDSI Global Symposium will return to the Hyatt Regency Hotel in New Brunswick, N.J., Oct. 20-22, 2026. All pertinent information will be added to this page when available. Currently, the OHDSI steering group is seeking proposals for both plenaries and tutorials. The deadline for both is January 30, 2026; more details are available on the event homepage.
• The December edition of the OHDSI newsletter is now available. This includes information on five in-person OHDSI events across four continents that are taking place over the last two months of the year, as well as recent community updates, recent publications and presentations, and plenty more.
• There is a new tutorials homepage on OHDSI.org that hosts all tutorials from past Global/US Symposia, including all six tutorials from the recent Global Symposium.
• The latest “On The Journey” annual report is now on the OHDSI homepage. This 136-page PDF provides an overview of the OHDSI community, including a look at its collaborators and collaborative activities, its research areas and tools, its work with standardized data and vocabularies, and nearly 900 publications that have come from the community.
• Registration is now open for the 2026 Summer School in Observational Health Data Science & Informatics, AI, and Real World Evidence, which will be held June 22-26 at the Columbia University Department of Biomedical Informatics. Now in its second-year, the Columbia OHDSI Summer School provides health professionals, researchers, and industry practitioners with an immersive, hands-on training to working with real-world health data and generating real-world evidence (RWE). Participants will explore the types of healthcare data captured during routine clinical care—such as electronic health records and administrative claims—and learn how to standardize these data using the OMOP Common Data Model to support collaborative, distributed research as part of a data network.
• Early-bird registration is open for the Oxford Summer School 2026: Real World Evidence using the OMOP Common Data Model, which will also be held June 22-26. This Real World Evidence Summer School will provide participants with the tools and concepts necessary to plan and execute Real World Evidence studies, with a focus on the use of the OMOP common data model. The course will have morning lectures followed by afternoon practicals where concepts discussed in the morning will be put in practice with hands-on sessions.
Save The Dates
- The 2026 OHDSI Europe Symposium will be held April 18-20 in Rotterdam, Netherlands. While registration has not opened yet, the deadline for abstract submissions is Feb. 6, 2026.
- The 2026 OHDSI Global Symposium will be held Oct. 20-22 at the Hyatt Regency Hotel in New Brunswick, N.J.
OHDSI Social Showcase
• Research from the 2025 OHDSI Global Symposium Collaborator Showcase is also being shared daily on OHDSI’s LinkedIn, Twitter/X, Instagram and Bluesky feeds as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:
Monday — Characterizing the OHDSI Evidence Network – A Global Snapshot of Real-World Data Partners (Clair Blacketer)
Tuesday — Real-World Implementation of the Medical Imaging CDM: An Alzheimer’s Disease Use Case (Jen Wooyeon Park)
Wednesday —Feasibility of Fully Data-Driven Federated Learning on Large Observational Health Data (Egill Fridgeirsson)
Thursday — Characterizing Patients with Type 2 Diabetes Mellitus Treated with Anti-Diabetic Medication: A Feasibility Study to Enable Future Multi-Database Application (Jiwon Um)
Friday — Barista: Brewing A New Methodology for Governing Study Execution (Ajit Londhe)
Slides
Year In Review | Community Updates
Video Presentation
How Did OHDSI Do in 2025?
