Undiagnosed Day 2026 is a two‑day, clinician‑led meeting in Gdansk bringing together specialist clinicians, clinical geneticists and invited experts to support phenotype‑led diagnosis through live case discussion, shared clinical reasoning and practical exchange.
The event is organised by the European Rare Diseases Research Alliance (ERDERA); the Wilhelm Foundation; the Medical University of Gdansk (GUMed); and the University Clinical Centre in Gdansk (UCK).
Although it draws on the same collaborative spirit as international Undiagnosed Hackathons, where patients who have previously failed to receive a diagnosis through standard genetic testing are re-analysed using more advanced techniques, the Gdansk event is designed around specialist clinical assessment and multidisciplinary discussion with patients and families present.
What to expect
The meeting will focus on practical approaches to phenotyping and diagnosis in undiagnosed conditions, including how to define next steps when a diagnosis remains uncertain, and how to strengthen pathways and collaboration around undiagnosed care.
Programme overview
Day one (29 April) – CLOSED EVENT
Call to Action – Undiagnosed Phenotyping Round Table
Day two (30 April) – OPEN EVENT
Undiagnosed Day Conference
- Modern diagnostics in undiagnosed conditions | including phenotyping, functional genomics, scalable platforms and cross‑border collaboration.
- Clinical cases with and without diagnosis | case‑based learning from solved and unsolved journeys.
- What to do when there is no diagnosis | care planning, ethics, privacy, and a diagnosis‑agnostic approach.
- International cooperation and registers | how shared infrastructures and registries support better diagnostics and care.
Practical details for Day Two
- Date: Thursday 30 April 2026
- Format: in‑person
- Venue (Day two): University Clinical Centre in Gdańńsk (UCK), Centre of Non‑Invasive Medicine, CMN_1/D/01.1 Lecture Hall
Registration for DAY 2 of this event will be available soon here.
Contact
For practical questions, please use global2026@undiagnosed-day.org.