In March 2020, the OHDSI community has hosted a virtual COVID-19 study-a-thon to inform healthcare decision-making in response to the current global pandemic. More than 300 researchers from all over the world have contributed to designing and executing a series of observational studies across the international OHDSI network of data captured during clinical practice; these sources include electronic health records and administrative claims. These retrospective analyses examine the safety of proposed drugs, as well as predict outcomes for patients with viral symptoms or complications.

In order to disseminate these results in a FAIR way, The Hyve, as part of work done for EHDEN, has set up this page to collect and present metadata of the study-a-thon assets. All real-world evidence generated in the study-a-thon has been placed in the public domain to support and inform current public health efforts. Here, we make these results findable and accessible, using standardized and interoperable metadata standards.

The latest news of the ongoing studies can be found on the official updates page.

Recent Studies

OHDSI COVID-19 Studyathon: Hydroxychloroquine population-level effect estimation

Characterizing Health Associated Risks, and Your Baseline Disease In SARS-COV-2 (CHARYBDIS)

Recent Databases

Columbia University Irving Medical Center

Estonial Health Information System

Integrated Primary Care Information

IQVIA Australia EMR

IQVIA Disease Analyser France EMR

Explore all Databases



Albert Prats-Uribe

Dphil Candidate

University of Oxford

Daniel Prieto-Alhambra

Associate Director of Epidemiology Analytics

University of Oxford

James Weaver

Associate Director, Observational Health Data Analytics

Janssen Research and Development

Jenna Reps

Senior Epidemiology Informaticist

Janssen Research and Development

Jennifer Lane

Versus Arthritis Clinical Research Fellow in Orthopaedic Surgery

University of Oxford

Kristin Kostka

Associate Director, OMOP Data Network


Marc Suchard

Professor, Department of Biomathematics

University of California

Mitchell Conover

Manager, Epidemiology Analytics

Janssen Research and Development

Peter Rijnbeek

Associate Professor Health Data Science

Erasmus University Medical Center

Ross Williams

PhD Student

Erasmus University Medical Centre

Seng Chan You

Medical Doctor

Ajou university

Talita Duarte-Salles


Institut Universitari d’Investigació en Atenció Primària