WEEKLY COMMUNITY CALL MEETINGS
A critical aspect of the phenotype development and evaluation process is aligning on a clinical definition that provides a full specification for each of the indications, exposures, and outcomes of interest in our studies. But how good are we as a community at reaching that shared understanding? Please join our Aug. 4 (11 am ET) community call, as Patrick Ryan will lead us in examining the topic of clinical definitions by highlighting work in our community and through a series of interactive exercises.
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 Gabriel L. O. Salvador, Jen Wooyeon Park, Teri Sippel Schmidt, Yiju Park, Kyulee Jeon, Seng Chan You, Paul Nagy, Blake Dewey & Alzheimer’s Disease Neuroimaging Initiative on the recent publication of Advancing the FAIRness of Multimodal Imaging Research Through the OMOP MI-CDM Framework: A Case Replication Study in Alzheimer’s Disease in the Journal of Imaging Informatics in Medicine.
• Congratulations to the team of Colin T Purmal, Michael E Matheny, Lucila Ohno-Machado, Gary Tarasovsky, Rick Larsen, and Mary A Whooley on the recent publication of Success and Challenges Querying OMOP-transformed EHR Data from Different Healthcare Organizations in ACI Open.
OHDSI UPDATES
• The August edition of The Journey newsletter is now available. Check out the enhancements coming in ATLAS 3.0, learn more about a record-breaking Global Symposium showcase, check out an impressive collection of updates and publications from July, as well as spotlights on Maxim Moinat and Misha Khitrun, and plenty more.
Maryia (aka Masha) Khitrun is the Technical Lead of the OHDSI Vocabulary team at Odysseus Data Services (an EPAM company), based in Vilnius, Lithuania. A medical doctor by training, she brings hands-on clinical experience to her work in health informatics. Masha started her career in OHDSI as a junior data analyst performing concept mappings and has grown into her expertise in vocabulary development and support, step by step. In the latest edition of the Collaborator Spotlight, Masha discusses her career journey, the challenges and importance of maintaining standardized vocabularies, new processes to enhance community contribution, and plenty more.
• Jenna Reps recently posted a call for developers with knowledge or interest in R or shiny or web development/design and UI and want to help out with HADES development in a new workgroup. If you are interested, please respond to the forum post.
• Peter Hoffmann provided a preview of the ATLAS 3 demo site during the July 7 community call. The ATLAS workgroup is looking for feedback about the new site. The demo is available here (Db Authenticaton enabled: use ohdsi/ohdsi, and anonymous access will be enabled in a future update). Discussions will be held here. Thank you for collaborating on this critical open-source tool for our community.
• Jiwon Um , a PhD student at Yonsei University in Korea, introduced a brief survey focusing on OHDSI in the Era of Medical AI. Medical AI is reshaping how observational research evidence is generated and used. The OHDSI community has spent more than a decade building infrastructure — OMOP CDM, standardized vocabularies, federated networks, open-source methodology — that may have a distinctive role in this transition. This survey asks how you, as a member of the community, see that role and the tensions surrounding it.
• Jiwoo Seo, a PhD student at Florida State University, announced a study on the motivations that drive experts to continuously contribute to biomedical ontology communities like OHDSI. You can take part in this survey here.
• A new call for papers is open for a Journal of Biomedical Informatics special issue focusing on agentic AI for generating trustworthy Real-World Evidence (RWE). The issue seeks contributions on multi-agent collaboration and coordinated autonomy across the RWE lifecycle—such as data harmonization and causal analysis—while excluding single-task AI agents. Submissions are accepted from June 15 through November 15, 2026, with publication slated for September 2027.
• 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.
• 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 2026 Europe 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 — Declarative Data Standardization to OMOP-CDM using LinkML copia (Alberto Labarga)
Tuesday — The Belgian FHIN-hospitals Industry Data Alliance (BELFHINDA) – Outcomes and learnings from a feasibility assessment in non-small cell lung cancer (Karen Crabbé)
Wednesday — Enhancing Multinational Drug Safety Studies: Mapping the Nordic Drug Product Identifiers (Varenummer) to the OMOP Standard (Saeed Hayati)
Thursday — Experiences with OMOPping Rehabilitation Data: A Unified ETL Strategy for Nine Distinct Clinical Datasets (Petros Patias)
Friday — Early adulthood adiposity trajectory and all-cause mortality among obesity-related cancer patients in Catalonia, Spain (Marianne Alves)
OHDSI UPCOMING EVENTS
The UK Symposium will be held September 18 at the University of Nottingham, preceded by an OMOP Training Day on September 17.
• Registration is 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 and workgroup activities which will take place during the event.
Book your Hyatt Guestroom now: Group Booking | Hyatt Events
Registration is open for the 2026 OHDSI APAC Symposium, which will take place Nov. 13-15 at Yonsei University in Seoul, South Korea. This will be a 3-day event, kicking off with the main conference and then including tutorials and a datathon during the weekend. Please check the event homepage for details on the agenda and collaborator showcase.
• 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.
OHDSI MSTEAMS
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Please continue to collaborate in our MS Teams environment, check out the OHDSI website and forums , and follow us on all platforms, including Twitter and LinkedIn to get continued updates and information on everything happening in our community