USA: 5 Additions to the Undiagnosed Diseases Network
The Undiagnosed Diseases Network (UDN) is a research study, funded by the National Institutes of Health Common Fund, aimed at bringing together clinical and research experts from across the United States to solve medical mysteries using advanced technologies. It was formed in 2015 and has since then been able to diagnose about 200 cases.
The UDN is currently expanding, with the integration of Children’s Hospital of Philadelphia and the Hospital of University of Pennsylvania, University of Miami School of Medicine, University of Utah, University of Washington School of Medicine and Seattle Children’s Hospital, and Washington University in St. Louis. This brings the clinical sites, where UDN participants are evaluated, to 12 US cities.
The UDN also recently published a paper in the New England Journal of Medicine. The study entitled “Effect of genetic diagnosis on patients with previously undiagnosed disease” evaluated patients referred to the UDN to infer the rate of diagnosis and the effect of the diagnosis on medical care. The authors report that, although one third of the accepted patients had previously undergone exome sequencing, the UDN established a clinical diagnosis at a rate of 35%. A specific therapy was recommended for 21% of the patients who received a diagnosis. As a result of these efforts, 31 new syndromes were identified. These results indicate that the approach used by the UDN is successful in increasing the rate of diagnosis.


