Weekly OHDSI Digest - June 1, 2026

WEEKLY COMMUNITY CALL MEETINGS

Generative AI and Large Language Models (LLMs) have the potential to massively accelerate our research mission, and we are seeing incredible breakthroughs across our global community. Please join us June 2 (11 am ET) for the first of a special three-part community call series dedicated to LLM research in OHDSI. The agenda for the first community call includes:

  • Intro to OHDSI research in LLMs, GenAI WG updates (Martijn Schuemie, Johnson & Johnson / GenAI Workgroup Lead)
  • Ariadne: Automated vocabulary mappings using AI (Anna Ostropolets, Johnson & Johnson / Columbia University; Martijn Schuemie, Johnson & Johnson)
  • LLM–Based Classification of ICD-10-CM to SNOMED Mappings for Improved Semantic Fidelity in OHDSI (Dmytry Dymshyts, Johnson & Johnson)
  • ACQIRE: Extending the OMOP Lifecycle (Roger Carlson, Corewell Health)

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 Matthew Spotnitz, Adam S Faye, John Giannini, Tamara R Litwin, Yechiam Ostchega, and Lew Berman on the recent publication of Assessing data quality of inflammatory bowel disease patients in the All of Us research program in JAMIA Open.

• Congratulations to the team of Boris Delange, Mirna El Ghosh, Celia Alvarez-Romero, Maxim Moinat, Paul Hilders, Patrick Rockenschaub, Jan van den Brand, Michel E. van Genderen, Christian Jung, Denis Delamarre, Sylvain Robert, Christel Daniel, Marc Cuggia, and Carlos Luis Parra-Calderón on the recent publication of Standardizing ICU Data Across Europe: Development of the INDICATE Minimal Data Dictionary in Volume 336 of Studies in Health Technology and Informatics: Opening the Personal Gate between Technology and Health Care.

• Congratulations to the team of Boris Delange, Mathilde Bories, Sylvain Robert, Arthur Simon, Claire Charamel, Catherine Duclos, and Marc Cuggia on the recent publication of A Hybrid Pipeline for Mapping French UCD Drug Codes to RxNorm with Dosage Preservation in Volume 336 of Studies in Health Technology and Informatics: Opening the Personal Gate between Technology and Health Care.

• Congratulations to the team of Aly Khalifa, Alexander Berler, and Rada Hussein on the recent publication of EHDS Data Continuum: A Proposed IHE Integration Profile for Bridging Primary and Secondary Health Data Use in Volume 336 of Studies in Health Technology and Informatics: Opening the Personal Gate between Technology and Health Care.

• Congratulations to the team of Matisse Decilap, Anya Okhmatovskaia, Jean-Paul R. Soucy, Dave van Steirteghem, Santiago Marquez, Aman Verma, John D. Fletcher, and David L. Buckeridge on the recent publication of Frequency-Based Prioritization of ICD-10-CA/CCI to OMOP Mapping in a Canadian Hospital Data Warehouse: Coverage and Usagi Performance in Volume 336 of Studies in Health Technology and Informatics: Opening the Personal Gate between Technology and Health Care.

• Congratulations to the team of Joaquim Vertentes Rosa, Raquel Paradinha, João Rafael Almeida, and José Luís Oliveira on the recent publication of Simplifying Cohort Definition with a Conversational Query Builder in Volume 336 of Studies in Health Technology and Informatics: Opening the Personal Gate between Technology and Health Care.

• Congratulations to the team of Loreen Ruhm, Laura Purfürst, Michael Ahmadi, Jacques Ehret, Maria Rönnefarth, Falk Meyer-Eschenbach, Katharina Schönrath, Stefanie Rudolph, Joachim E. Weber, Christof von Kalle, Johanna Nothacker, and the Belove Study Group on the recent publication of OMOP Extraction of Medical Text Using LLMs: Preliminary Results in Volume 336 of Studies in Health Technology and Informatics: Opening the Personal Gate between Technology and Health Care.

• Congratulations to the team of Félix Berthou, Ghilsain Vaillant, Bastien Rance, and Adrien Coulet on the recent publication of Build and Query Indexes of Clinical Documents with Easy-to-Reuse Pipelines in Volume 336 of Studies in Health Technology and Informatics: Opening the Personal Gate between Technology and Health Care.

• Congratulations to the team of Thomas Ruprecht, Eveline Prochaska, and Elisa Henke on the recent publication of Crique: A System for Automatic Extraction and Formalization of Eligibility Criteria for Clinical Trials in Volume 336 of Studies in Health Technology and Informatics: Opening the Personal Gate between Technology and Health Care.

• Congratulations to the team of Claire Charamel, Arthur Le Gall, Marc Cuggia, and Boris Delange on the recent publication of OPTIMA-DAW: Improving Cerebral Vasospasm Detection After Aneurysmal Subarachnoid Haemorrhage Using Machine Learning in Volume 336 of Studies in Health Technology and Informatics: Opening the Personal Gate between Technology and Health Care.

• Congratulations to the team of Francisco Lozano, Julia Sánchez Esquivel, Sergio Paraíso-Medina, Raúl Alonso-Calvo, Paloma Jimeno, Inmaculada Luengo, and Víctor Maojo on the recent publication of Federated Multi-Agent Architecture for Harmonizing Public Health Datasets into OMOP and FHIR Standards in Volume 336 of Studies in Health Technology and Informatics: Opening the Personal Gate between Technology and Health Care.

OHDSI UPDATES

THIS FRIDAY is 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.

• In a recent week-long collaboration, OHDSI partnered with the Uppsala Monitoring Center (UMC)—the WHO Collaborating Centre for International Drug Monitoring—to help integrate Sweden’s national registry data into the OMOP Common Data Model. Utilizing OHDSI tools and data quality packages, the team successfully designed and executed a full study using Strategus in just five days. This achievement highlights the incredible speed and efficiency of the OMOP CDM when onboarding new data partners to advance global pharmacovigilance.

• The latest edition of The Journey newsletter is now available. It includes a look at the LLM research presentations coming this month, OHDSI’s work with the Uppsala Monitoring Center (UMC) to help integrate Sweden’s national registry data into the OMOP Common Data Model, upcoming community events, spotlights on Anthony Sena and Benjamin Martin, nearly 30 May publications and more. If you don’t receive the newsletter in your inbox, you can subscribe here.

The FALCON (Federated Alliance for Large-scale Cancer Observational Network) Research Network is dedicated to advancing real-world oncology evidence through federated health analyses. The network is hosting its 2026 Symposium and Bladder Cancer Studyathon from Sep. 28-Oct. 1 at Dunden in Antwerp, Belgium. This intensive four-day event kicks off with a general symposium followed by a three-day collaborative working session for researchers, clinicians, and data scientists to generate high-quality clinical evidence on the OMOP CDM.

• There are only a couple spots remaining 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).

• 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.

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 — Standardized Imaging Phenotyping and AI Validation for Tuberculosis Using Medical Imaging Extension for OMOP CDM and ATLAS (Kyulee Jeon)

Tuesday — Exploring Efficient and Scalable OMOP CDM Workflows by Leveraging dbt-synthea (Markian Hromiak)

Wednesday — Quantifying Condition Completeness using Medications in the All of Us Research Program (Lina Sulieman)

Thursday — NLP based Extraction and OMOP Standardization of Breast Cancer Clinical Data from Indian Discharge Summaries (Swetha Kiranmayi Jakkuva)

Friday — Comparing Timeline and Challenges of OMOP CDM Implementation in Brazil (Juliana Araújo Prata de Faria)

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-

The third annual OHDSI India Symposium has been scheduled for December 11th in Chennai. More details and registration information will be shared with the community as they become available.

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