Scientists hunt for missing genetic clues in mystery diseases
NCT ID NCT04399694
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study aimed to find new genetic changes that might cause inherited diseases, especially in people who already have a diagnosis but whose genetic tests were not clear. Researchers studied 56 patients and their family members to look for hidden variants in parts of the DNA that are often overlooked. The goal was to better understand the genetic roots of these conditions, not to test a new treatment.
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Study facts
What this study's own registry entry says, in plain language.
- Participants
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56 people
The number who actually took part.
- Started
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Mar 2020
- Finished
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Apr 2024
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Patients with diagnosed genetic disease and inconclusive genetic results and their unaffected family members
- Ages
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Children (under 18), adults (18 to 64) and older adults (65 and over)
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion criteria: Subjects will have one or more of the following: * Patients (probands) diagnosed with a genetic disease * Patients (probands) with inconclusive genetic results * Patients (probands) that have identical coding and/or splicing variants, but display highly diverse phenotypes * Unaffected family members of probands Exclusion Criteria: There are no exclusion criteria for this study.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Duke University
Durham, North Carolina, 27710, United States
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Other studies related to the condition(s) this trial covers.
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