WEEKLY COMMUNITY CALL MEETING
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.
Please join us Tuesday, May 5 (11 am ET) as leaders from the Europe Symposium provide a full review of the event!
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 Corina Konstantinou, Georgia Soursou, Samuel Abimbola, Pantelis Charisiadis, Angelos Kyriacou, Theofano Modestou, Michalis Tornaritis, Charalambos Hadjigeorgiou, Agapios Agapiou, Efstathios A. Elia, George Milis, Alexis Kyriacou, Lygia Eleftheriou, Zoi Tsimtsiou, Pantelis Natsiavas, Or Duek, Idan Menashe, Nathalia Bilenko, Itamar Grotto, Enkeleint A. Mechili, Mònica Guxens, Costas A. Christophi, Constantinos Deltas, and Konstantinos C. Makris on the recent publication of Designing a children’s health exposomics study protocol: The CHILDREN_FIRST multi-country prospective cohort using multi-omics and personalized prevention approaches in PLOS One.
• Congratulations to the team of Luca Moscetti, Enrico Calanchi, Elisa Pettorelli, Andrea Spallanzani, Federica Bertolini, Rossella Fogliani, Mirko Orsini, Laura Delsante, Monica Civallero, Roberta Depenni, Katia Di Emidio, Fabio Gelsomino, Annalisa Fontana, Federico Piacentini, Roberto Sabbatini, and Massimo Dominici on the recent publication on the recent publication of Preparing real-world data through common data model harmonization of cancer patient records in the COMNet platform at the Modena Oncology Center in Frontiers in Digital Health.
• Congratulations to the team of Brenda Mbouamba Yankam, Fankoua Tchaptchet Luc Baudoin, Pauline Andeso, François Anicet Onana Akoa, Jean Blaise Ebimbe, Miranda Barasa, Mbele Onana, Samuel Iddi, Agnes Kiragga, Bertrand Hugo Mbatchou Ngahane and the Data Science Without Borders Project on the recent publication of Evaluating the impact of OMOP-CDM on data quality insight generation in respiratory disease management in Frontiers in Big Data.
• Congratulations to the team of Joseph Cronin, Olivia Wiper, Anthony Poncet, Keiran Tait, Bernard Cooke, Andrew Fry, Janie Baxter, and Robert Dürichen on the recent publication of ArcMAP – ML assisted medical concept mapping to accelerate NHS data standardization in Frontiers in Digital Health.
OHDSI UPDATES
There are 32 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.
• 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 can be found here, and the May 5 community call will provide a full review of the event.
• 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
• 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 — Anatomical Location Auto-check and Standardization for Medical Images (Qingrui Wang)
Tuesday — Mapping PROMs to the OMOP-CDM: Insights and Lessons from the ICHOM Hand and Wrist Conditions Standard Set and the PROMOP H2O Project (Lisa Hoogendam)
Wednesday — The Fine Art of Tolerance: Robustify p-value Calibration in Observational Studies with Partially Valid Negative Control Outcomes (Bingyu Zhang)
Thursday — Understanding Community Needs for ATLAS: Results of the June 2025 OHDSI Feature Use and Prioritization Survey (Christopher Knoll)
Friday — Data-Driven Identification of Comorbidities and Pharmacological Patterns in Patients with Sleep Disorders (Praveen Kumar)
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–
OHDSI MSTEAMS
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