Condition
Undiagnosed Disease clinical trials and research
As of November 12, 2026, Find a Trial lists 3 Undiagnosed Disease clinical trials that are recruiting, at sites in 2 countries (most in United States (2), Italy (1)). Every study is explained in plain English. Data from ClinicalTrials.gov and NIH RePORTER, updated November 12, 2026.
- 3Clinical trials
- 2Countries
Newest Undiagnosed Disease clinical trials
| Study | Phase | Where | Status | Registered |
|---|---|---|---|---|
| Long-term observation of ultra-rare inherited neurological diseases. | — | Milan, Milano | Recruiting | May 10, 2021 |
| Program for discovering undiagnosed genetic diseases | — | Madison, Wisconsin | Recruiting | Oct 14, 2020 |
| Genetic analysis of undiagnosed diseases in Plain Communities | — | Pittsburgh, Pennsylvania | Recruiting | Oct 6, 2016 |
All recruiting trials (3)
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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.
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Program for discovering undiagnosed genetic diseases
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.
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Genetic analysis of undiagnosed diseases in Plain Communities
This study is trying to find the genetic causes of undiagnosed health issues in the Old Order Amish and Mennonite communities to improve diagnosis and treatment for those affected.
Related topics
Quick answers
How many Undiagnosed Disease clinical trials are recruiting right now?
3, as of November 12, 2026. We update this list each time we refresh our data from ClinicalTrials.gov.
Where are these trials running?
In 2 countries. The most sites are in United States (2 trials), Italy (1 trial). Each study page lists its sites and which ones are recruiting.
How do I join one?
Open a study, check the "Is this trial a fit for you?" section, then contact the study team listed on the page. They will ask a few screening questions. Asking is free and does not commit you to anything. Talk it over with your doctor first.
Find the studies that fit you
A list is a starting point. Tell us your situation in your own words and we'll rank the studies that match and explain why. It's free and needs no account.