Clinical trial Recruiting at 1 site Observational Ages Any age to 100

Program for discovering undiagnosed genetic diseases

Official title: UW Undiagnosed Genetic Diseases Program

Run by University of Wisconsin, Madison · NCT04586075 · Data updated 2026-11-12

This study is trying to find new genetic causes for rare diseases by testing the DNA of 500 people who haven't been diagnosed yet.

Quick facts

Study typeObservational
AgesAny age to 100 Years
SexAll
Enrollment1000 (estimated)
SponsorUniversity of Wisconsin, Madison
Academic / other
Locations1 site (Madison, Wisconsin)
StatusRecruiting
StartedJuly 16, 2021
Main results expectedOctober 2030
Study endsOctober 2030
Registry record updatedMay 29, 2026
Trial IDNCT04586075 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are individuals with undiagnosed conditions despite thorough evaluations and who have objective findings suggestive of a genetic cause.

Probably not a fit

Patients who already have a diagnosis that explains their symptoms may not benefit from this program.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This program aims to identify new disease genes for rare Mendelian disorders and diagnose individuals with previously undiagnosed genetic conditions. By utilizing genome sequencing and advanced 'omics technologies, the study will assess patients whose clinical evaluations have not provided a diagnosis. Over a period of approximately five years, 500 participants with suspected genetic disorders will be recruited to contribute to this research. The program also seeks to enhance understanding of genetic disorders and develop innovative diagnostic technologies.

Why it matters

Potential benefit: If successful, this program could provide accurate diagnoses and actionable insights for patients with rare genetic disorders, improving their management and quality of life.

How similar studies have gone: Other studies utilizing genome sequencing for undiagnosed diseases have shown promise, indicating that this approach is both relevant and potentially impactful.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* The applicant has a condition that remains undiagnosed despite thorough evaluation by healthcare providers (including clinical genetic testing).
* The applicant has at least one objective finding that is likely to have an identifiable genetic etiology.
* The applicant likely has a currently undescribed/new genetic condition or a known genetic condition associated with a novel gene.
* The applicant/legal guardian agrees to the collection, storage and recurrent sharing of coded information and biomaterials for research and diagnostic purposes both within and outside of the University of Wisconsin-Undiagnosed Diseases Program (UW-UDP)
* The applicant/legal guardian agrees to receive secondary findings from genetic testing.
* The applicant/legal guardian has sufficient proficiency in English to understand the consent.

Exclusion Criteria:

* The applicant already has a diagnosis that explains the objective findings.
* A specific diagnosis is suspected and a standard clinical workup performed by the referring/primary care provider would be appropriate.
* The UW-UDP is unlikely to improve on the comprehensive workup the applicant has already received.
* The applicant's symptoms are likely multifactorial or due to a non-genetic cause.

Where it's running

  • University of Wisconsin School of Medicine and Public Health
    Madison, Wisconsin, United States
    Recruiting

Study contacts

  • Principal investigator: Bryn Webb, MD — University of Wisconsin, Madison
  • Study coordinator: Research Coordinator
  • Phone: (608) 263-5877

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

  • Genomic profiling for patients with rare and genetic diseases

    This study is trying to see if using advanced genetic testing can help doctors better understand and treat rare diseases for over 2 million patients in Italy.

    Recruiting Fondazione Policlinico Universitario Agostino Gemelli IRCCS · Rome, Lazio · NCT06926127

  • Identifying genetic causes of rare diseases

    This study is trying to find out if certain genetic changes are linked to rare diseases by looking at samples from patients whose conditions are not well understood.

    Recruiting University Hospital, Angers · Angers · NCT05499091

  • Long-term observation of ultra-rare inherited neurological diseases.

    This study is looking to learn more about very rare inherited neurological diseases by tracking and collecting information from patients over a long time to see how these conditions change and affect their lives.

    Recruiting Fondazione I.R.C.C.S. Istituto Neurologico Carlo Besta · Milan, Milano · NCT04880356

  • AI-assisted Rare-Disease Diagnosis

    A multicenter randomized test to see if an AI diagnostic tool can help doctors make faster, more accurate rare-disease diagnoses for patients with unresolved symptoms.

    Recruiting at 3 sites Peking Union Medical College Hospital · Cangzhou and 11 other locations · NCT07650799

  • Socio‑professional inclusion for young people (15–25) with childhood-onset rare genetic disabilities

    This project will try to see what makes it hard for 15–25‑year‑olds with childhood-onset rare genetic conditions to access higher education, internships, or work.

    Recruiting Imagine Institute · Paris, Île-de-France Region · NCT07527624

  • Newborn whole-genome sequencing and genetic disease risk in pregnancy and early life

    This project will collect small biological samples from pregnant families and newborns to try whole-genome sequencing and other multi-omics tests to find genetic disease risks.

    Recruiting Women's Hospital School Of Medicine Zhejiang University · Hangzhou, Zhejiang · NCT07365254

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.