WEEKLY COMMUNITY CALL MEETING
A cornerstone of every OHDSI symposium, the Collaborator Showcase offers a premier stage to highlight our global community’s work in data standards, methods research, open-source development, clinical applications, and community development. With a network spanning over 974 million unique patient records, OHDSI’s impact is driven entirely by the interdisciplinary collaboration of its members.
Building on record-breaking submission totals from our recent symposia, we are eager to see the scope of research being conducted worldwide this year. You can share your work via poster, software demo, or lightning talk, provided you submit your brief report by the June 5 (8 pm ET) deadline.
To help you prepare, our May 12 community call (11 am ET) will be dedicated to discussing showcase ideas, answering questions, and providing peer feedback.
Detailed information regarding the submission process and showcase categories can be found here: 2026 Global Collaborator Showcase – OHDSI
Reminder: The deadline to submit your brief report for the 2026 Global Symposium is June 5 at 8 pm ET. Learn more and find the abstract submission form.
Everybody is invited. If you didn’t receive a call invite, please use this link to join. The call schedule and previous recordings can be found on the community calls page.
WEEKLY WORKING GROUP MEETINGS
Upcoming Workgroup Calls – OHDSI
OHDSI SHOUTOUTS
Congratulations to the team of Woo-Young Shin, Ha Young Jang, and Kiyoung Lee on the recent publication of Real-world risk assessment of combined cilostazol-rosuvastatin: a retrospective cohort study using Korean electronic health records in Frontiers in Pharmacology.
OHDSI UPDATES
There are 25 DAYS REMAINING before the deadline to submit your brief report(s) for the 2026 Global Symposium Collaborator Showcase. All information is available here, and you can submit your reports here. The deadline to submit your brief report(s) for the Collaborator Showcase is June 5 at 8 pm ET.
• We are excited to dedicate our first three June community calls to the evolving landscape of LLM research within our community. While recent symposia showcased remarkable advancements, we believe there is a significant opportunity for deeper collaboration across these ongoing projects. We invite you to present your work in a 10-minute session on June 2, 9, or 16 by completing this interest form or by emailing Craig Sachson at [email protected].
• Julio Oliveira is a physician, physicist, and entrepreneur dedicated to advancing the use of real-world data to improve research and decision-making in Latin America. He is a regional leader in the OHDSI community, where he supports the growth of the OMOP Common Data Model and collaborative observational research across LATAM. His broader mission is to strengthen data quality, interoperability, and research ecosystems that can generate meaningful evidence for patients, providers, researchers, and health systems. In the latest collaborator spotlight, Julio reflects on his path to OHDSI, its growth in Latin America, why now is the right time for the first LATAM Symposium, and more.
• The May 2026 edition of The Journey newsletter is now available, and it includes details of the Europe Symposium, information on the Global Symposium Collaborator Showcase and the main conference agenda, spotlights on Julio Oliveira and Lisebet Peeters, community updates, April publications and more. If you don’t receive the newsletter in your inbox, you can subscribe here.
• The 2026 OHDSI Europe Symposium welcomed a record number of both participants and collaborator showcase submissions to Rotterdam, where the weekend theme was ‘Continuous Collaboration for Living Evidence Generation’. Following two days of tutorials and workshops, the community joined together April 20 on the SS Rotterdam for a day of networking, sharing research, and looking ahead to the potential of a global healthcare surveillance system developed by the OHDSI community. All presentations, posters and slides can be found here.
• The second OHDSI Maternal Health Fellowship is designed to train clinical investigators for improved maternal and neonatal care. This fellowship offers three key components: Career Development, Practice, and Networking. Supported by both the OHDSI community and the NIH IMPROVE initiative, the program focuses on training clinical investigators in observational research methods to enable them to conduct reproducible research and generate real-world evidence. Learn more and register here. The deadline to apply is May 15.
• The first OHDSI Latin America Symposium will be held July 30-31 in Salvador, Brazil. The event will include multiple workshops, including sessions focused on Introduction to OMOP, Cohort building, ETL for OMOP, and Scientific collaboration: opportunities for network studies in Latin America. Please help the organizing committee identify relevant stakeholders to represent the region; reach out to [email protected] or [email protected] to provide assistance.
• Take your OMOP CDM from implementation to impact with The OMOP Practitioner, an intensive three-day expert training hosted Sept. 7-9 by Erasmus MC in Rotterdam. This hands-on program moves beyond the basics, offering a maximum of 30 participants deep-dive experience with the Data Quality Dashboard, ATLAS, and real-world study execution. You will leave with the advanced expertise needed to ensure your data is analysis-ready and capable of generating the reliable evidence required to drive organizational adoption.
• The OHDSI community has published more than 950 peer-review studies highlighting the OMOP CDM or OHDSI tools. Learn more about OHDSI research via our improved Community Dashboard. Thank you to our collaborators at Johns Hopkins for leading this initiative.
• 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.
Job Openings
• The EHDEN Foundation is looking for a Clinical Terminology Scientist to support our mission to maintain and enhance OHDSI vocabularies, and to improve their quality to improve and accelerate the generation of high-quality RWE in Europe and beyond. In this role, you will work with partners, sponsors, and collaborators to support the maintenance and improvement of vocabularies and ongoing RWE studies and related activities; maintain and enhance OHDSI vocabularies, and improve their testing and documentation; improve and increase the maintenance of European clinical/pharmaceutical vocabularies and terminologies, and their interaction with OHDSI vocabularies; and contribute to the development, maintenance, improvement, and validation of computable phenotypes for the identification of specific cohorts executable across the EHDEN network. More details here. The application deadline is May 14, 2026.
OHDSI SOCIAL SHOWCASE
OHDSI Social Showcase
• Research from the 2025 Global Symposium Collaborator Showcase is being shared daily on OHDSI’s LinkedIn, Twitter/X, Instagram and Bluesky social channels as part of the #OHDSISocialShowcase. Below are posters (with study leads) that are featured this week:
Monday — Cohort-Pilot: Collaborative AI for Translating Natural Language into Actionable Cohort Analytics (Alvaro A. Alvarez)
Tuesday — The OMOPCAN Study: Preliminary Insights on Cancer Patient Characterization Across 34 Cancer Types from SIDIAP database with planned OHDSI Network Collaboration (Irene López Sánchez)
Wednesday — Compositional Public Health Approaches to Observational Health Research (Jacob S. Zelko)
Thursday — Improving Semantic Integrity of Oncology Terminology within OHDSI Standardized Vocabularies (Bohdan Khilchevskyi)
Friday — Repurposing Drugs in the ICU through Real-world Data Analysis using OMOP CDM (OHDSI) (Daniella Garofalo)
UPCOMING OHDSI EVENTS
The first OHDSI Latin America Symposium will be held July 30-31 in Salvador, Brazil. The event will include multiple workshops, including sessions focused on Introduction to OMOP, Cohort building, ETL for OMOP, and Scientific collaboration: opportunities for network studies in Latin America.
• The UK Symposium will be held September 18 at the University of Nottingham, preceded by an OMOP Training Day on September 17. The call for abstracts has opened, and the deadline is set for May 1.
• Registration and the call for participation are now open for the 2026 OHDSI Global Symposium, held Oct. 20–22 at the Hyatt Regency in New Brunswick, N.J. You can also read more about our 12 new tutorial offerings which will take place during Day 1 of the event. The deadline to submit your brief reports for the Collaborator Showcase is June 5 at 8 pm ET.
Book Your Hyatt Regency Guestroom Here–
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