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6th International Symposium on Urea Cycle Disorders 2025
September 1–2, 2025, Kyoto, Japan

The 6th International Symposium on Urea Cycle Disorders (UCD), “Advancements in Understanding: Global Perspectives and Innovations in Urea Cycle Disorders” is a satellite meeting to the International Congress of Inborn Errors of Metabolism (ICIEM).
The symposium will provide a forum for the international research community to share cutting-edge research findings and engage in meaningful discussions to push the boundaries of scientific discovery. An exciting feature of the symposium is its focus on the next generation of researchers, offering trainees and junior faculty a platform to present their work, interact with international leaders and build essential connections. Through this experience, we aim to inspire the next wave of UCD investigators while strengthening global partnerships in the field.
We look forward to an event that will be both enriching and collaborative.
Featured Events
Day 1 - September 1, 2025
Poster Session opens at 5:00 pm and will remain open throughout the reception
Join us for a warm and engaging Welcome Reception to kick off the event. This is a great opportunity to connect with fellow attendees, network with colleagues and collaborators, and set the tone for the day ahead. Enjoy a selection of food and drinks in a relaxed setting while exploring selected posters that showcase innovative research.
Day 2 - September 2, 2025
Meet the Professor Breakfast (7-7:45 AM)
Trainees and junior investigators will have the opportunity to engage with leading experts in urea cycle disorder (UCD) research during our Meet the Professor Breakfast. Whether you are seeking career advice, research insights or new collaborations, this breakfast will be a valuable and inspiring experience.
Scientific Sessions (8 AM-5 PM)
The Scientific Symposium will bring together a distinguished group of internationally renowned clinicians and scientists at the forefront of urea cycle disorder (UCD) research and clinical care. This comprehensive session will highlight the latest advances and ongoing challenges across key areas of the field, including:
- Disease Models and Mechanisms – Exploring foundational insights into UCD pathophysiology and novel model systems
- From Phenotypic Diversity to Personalized Medicine – Addressing the clinical variability of UCDs and the move toward individualized treatment approaches
- Innovative vs Established Therapies – Examining emerging treatment strategies in the context of existing standards of care
- Challenges of Newborn Screening for UCDs – Discussing current and evolving practices in early diagnosis
Poster Session (12-1 PM)
The Poster Session offers a forum to showcase recent findings in urea cycle disorders (UCD) research, and is designed to promote the exchange of ideas and stimulate discussion. It also serves as a valuable platform for early career investigators to share their work, receive feedback from experts, and build connections within the international research community.
Networking
With a strong tradition of fostering meaningful connections, the upcoming symposium is expected to bring together senior and junior investigators, clinicians, researchers, patient advocates, and industry representatives. Throughout the symposium, dedicated networking opportunities will allow attendees to engage across disciplines, exchange ideas, and explore potential collaborations.
The last in-person symposium on UCD was attended by 265 participants, and a similar number of attendees are expected this year.
The Symposium was Presented By:

Contact Us
If you have any questions about the symposium, please contact the operations team:
Jennifer Seminara, MPH
Operations Manager
Email: jseminar@childrensnational.org
Kia Bryan
Operations
Email: kbryan@childrensnational.org
5th International Symposium on Urea Cycle Disorders

Day 1: Overview and International Perspectives: Clinical Experience and Poster Presentations
Session Co-Chairs: Matthias Baumgartner, MD, University Children’s Hospital, Zurich, Gerard Berry, MD, Boston Children’s Hospital & Cynthia Le Mons, National Urea Cycle Disorders Foundation
Day 2: Biomarkers and Outcomes: Clinical Trial Readiness and Meet the Professor Session for Trainees and Junior Faculty
Session Co-Chairs: Lindsay Burrage, MD, PhD, Baylor College of Medicine & Andrea Gropman, MD, Children’s National Hospital
Day 3: Diagnosis and Therapies and Networking Closing Reception
Session Co-Chairs: Sandesh Nagamani, MD, Baylor College of Medicine & Oleg Shchelochkov, MD, US National Institutes of Health
Symposium Co-Chairs: Andrea Gropman, MD, and Cynthia Le Mons
This event was hosted by the Urea Cycle Disorders Consortium (UCDC), the National Urea Cycle Disorders Foundation (NUCDF), and the European Registry and Network for Intoxication Type Metabolic Diseases (E-IMD) in collaboration with metabolic colleagues from around the globe as a satellite meeting to the 14th International Congress on Inborn Errors of Metabolism 2021. Registration fees, a grant from the US National Institutes of Health, and UCDC and NUCDF support will cover the cost of the event.
Accreditation Statement: This live educational activity has been planned and implemented in accordance with the accreditation requirements and policies of the Medical Society of Virginia (MSV) through the joint providership of Inova Office of Continuing Medical Education and Children's National Medical Center. The Inova Office Continuing Medical Education is accredited by the Medical Society of Virginia to provide continuing education for physicians.
Credit Designation: The Inova Office of Continuing Medical Education designates this live activity for a maximum of 8.25 AMA PRA Category 1 Credit(s)™. Physicians should only claim credit commensurate with the extent of their participation in the activity. Physicians may claim up to 8.25 credits in Type 1 CME on the Virginia Board of Medicine Continued Competency and Assessment Form required for renewal of an active medical license in Virginia.
14th International Congress of Inborn Errors of Metabolism | 21-23 November 2021
The 5th International Symposium on Urea Cycle Disorders is a satellite to the 14th International Congress of Inborn Errors of Metabolism | 21-23 November 2021