
John Concato MD
Professor, Internal Medicine, Yale University School of Medicine
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333 Cedar StNew Haven, CT 06510
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Summary
- Dr. Concato is an Adjunct Professor of Medicine at Yale School of Medicine. He joined the FDA in 2019 and from 2020-2024 was an Associate Director for the Office of Medical Policy, Center for Drug Evaluation and Research (CDER), Food and Drug Administration (FDA), overseeing Real-World Evidence Analytics. He worked with other CDER offices, FDA centers, and external entities to promote understanding of, and opportunities related to, use of real-world data (RWD) and real-world evidence (RWE). His duties included directing CDER’s RWE Program, serving as Chair of RWE Subcommittee, supporting Agency processes related to RWD/RWE, and interacting with interested parties.
Under Dr. Concato’s leadership, CDER published eight guidance documents on RWD/RWE during 2021-2024, representing a first-generation portfolio of recommendations on data sources, study design, and regulatory considerations. In parallel, more than 25 research projects were funded to improve the reliability or use of RWD, better understand study designs that generate RWE, or develop specific methodological “tools.” He led initiatives leading to a new Advancing RWE Program and the first CDER RWE Annual Report. His presentations and publications are cited frequently.
Dr. Concato was previously an investigator, mentor, administrator, and clinician at Yale School of Medicine and Veterans Affairs (VA) Connecticut Healthcare System from 1992-2019. As an internist and epidemiologist, he acquired experience in methodological and applied topics involving study design and data analysis in patient-oriented research and medical product evaluation. His work included research evaluating the effectiveness of screening programs and other topics, launching the Million Veteran Program genomic biobank, comparing results of non-interventional studies and randomized trials to inform ongoing discussions of real-world data and evidence, and serving as the founding director of the VA Clinical Epidemiology Research Center.
Education & Training
Yale-New Haven HospitalFellowship, Robert Wood Johnson Clinical Scholar, 1989 - 1991
NYU Grossman School of MedicineResidency, Internal Medicine, 1985 - 1989
New York University School of MedicineClass of 1985
Certifications & Licensure
CT State Medical License 1989 - 2027
American Board of Internal Medicine Internal Medicine
Publications & Presentations
PubMed
- Enhancing Evidence Generation by Linking Randomized Clinical Trials to Real-World Data: The INVESTED-Medicare Linkage Study.Hanseul Cho, HoJin Shin, Mehdi Najafzadeh, Brian Claggett, Janinne Ortega-Montiel
Clinical Pharmacology and Therapeutics. 2026-09-06 - Medicine's 'Basic' Mistake: How the Molecular Revolution Displaced an Entire Category of Inquiry.Ralph I Horwitz, John Concato
Journal of Evaluation in Clinical Practice. 2026-08-01 - Bleeding Risk With Apixaban Versus Rivaroxaban: A Reference Trial Emulation Predicting the Results of COBRRA-VTE and COBRRA-AF Using US Health Care Claims.Mufaddal Mahesri, Sebastian Schneeweiss, Kueiyu Joshua Lin, Luke Zabotka, John Concato
Circulation. Population Health and Outcomes. 2026-07-01
Journal Articles
- AUDIT‐C and ICD Codes as Phenotypes for Harmful Alcohol Use: Association with ADH1B Polymorphisms in Two U.S. PopulationsDavid A Fiellin, William C Becker, Joel Gelernter, Henry R Kranzler, Ning Sun, John Concato, Addiction
Press Mentions
FDA Blazes Path for ‘Real-World’ Evidence as Proof of EfficacyMay 11th, 2021
Report Casts Fresh Doubts on Prostate Cancer TestingJanuary 10th, 2006
Report Casts Fresh Doubts on Prostate Cancer TestingJanuary 10th, 2006
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