The National Institutes of Health (NIH) Undiagnosed Diseases Program (UDP) is part of the Undiagnosed Disease Network (UDN), an NIH Common Fund initiative that focuses on the most puzzling medical cases referred to the NIH Clinical Center in Bethesda, Maryland. It was organized by the National Human Genome Research Institute (NHGRI), the NIH Office of Rare Diseases Research (ORDR) and the NIH Clinical Center. Many medical specialties from other NIH research centers and institutes contribute the expertise needed to conduct the program, including endocrinology, immunology, oncology, dermatology, dentistry, cardiology and genetics, among the dozens of participating senior attending physicians.
A longstanding medical condition that eludes diagnosis by a referring physician can be considered undiagnosed and may be of interest to this clinical research program. Of the total number of cases that are referred to this program, a very limited number will be invited to proceed in the study following careful application review by the program's medical team. In general, it takes 8 to 12 weeks for the UDP to evaluate an application, and the waiting list for admission is 2 to 6 months.
Please note that UDP participants may receive consultation regarding their treatment when they arrive for a UDP evaluation, but treatment is usually not provided as a component of the program. The treatment recommendations that NIH clinicians may offer remain the responsibility of the patient and the clinician who refers that patient to the UDP.
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Phone: 1-844-RING-UDN (1-844-746-4836)
Last Updated: September 16, 2015