ArticleOrphanet journal of rare diseases2022
The Korean undiagnosed diseases program phase I: expansion of the nationwide network and the development of long-term infrastructure.
Article in Orphanet journal of rare diseases, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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6 citing papers in PubMed, 6 citations in OpenAlex.
- The Korean Genetic Diagnosis Program for Rare Disease Phase II: outcomes of a 6-year national project.European journal of human genetics : EJHG · 2023Trial
- Rare disease genomics and precision medicine.Genomics & informatics · 2024Review
- Implementing genomic medicine in clinical practice for adults with undiagnosed rare diseases.NPJ genomic medicine · 2024Article
- International Undiagnosed Diseases Programs (UDPs): components and outcomes.Orphanet journal of rare diseases · 2023Review
- Beyond the exome: What's next in diagnostic testing for Mendelian conditions.American journal of human genetics · 2023Review
- Article
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42 authors at 19 institutions in 1 country.
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Abstract
backgroundPhase I of the Korean Undiagnosed Diseases Program (KUDP), performed for 3 years, has been completed. The Phase I program aimed to solve the problem of undiagnosed patients throughout the country and develop infrastructure, including a data management system and functional core laboratory, for long-term translational research. Herein, we share the clinical experiences of the Phase I program and introduce the activities of the functional core laboratory and data management system.
resultsDuring the program (2018-2020), 458 patients were enrolled and classified into 3 groups according to the following criteria: (I) those with a specific clinical assessment which can be verified by direct testing (32 patients); (II) those with a disease group with genetic and phenotypic heterogeneity (353 patients); and (III) those with atypical presentations or diseases unknown to date (73 patients). All patients underwent individualized diagnostic processes based on the decision of an expert consortium. Confirmative diagnoses were obtained for 242 patients (52.8%). The diagnostic yield was different for each group: 81.3% for Group I, 53.3% for Group II, and 38.4% for Group III. Diagnoses were made by next-generation sequencing for 204 patients (84.3%) and other genetic testing for 35 patients (14.5%). Three patients (1.2%) were diagnosed with nongenetic disorders. The KUDP functional core laboratory, with a group of experts, organized a streamlined research pipeline covering various resources, including animal models, stem cells, structural modeling and metabolic and biochemical approaches. Regular data review was performed to screen for candidate genes among undiagnosed patients, and six different genes were identified for functional research. We also developed a web-based database system that supports clinical cohort management and provides a matchmaker exchange protocol based on a matchbox, likely to reinforce the nationwide clinical network and further international collaboration.
conclusionsThe KUDP evaluated the unmet needs of undiagnosed patients and established infrastructure for a data-sharing system and future functional research. The advancement of the KUDP may lead to sustainable bench-to-bedside research in Korea and contribute to ongoing international collaboration.
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