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Unlocking genetic secrets: study aims to diagnose rare diseases in plain communities

NCT ID NCT02927158

Knowledge-focused Sponsor: University of Pittsburgh Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study uses advanced genetic testing (whole exome and whole genome sequencing) to find the genetic causes of undiagnosed diseases in people of Amish or Mennonite descent. Researchers will analyze DNA from 300 participants to identify disease-causing gene mutations and study how certain genetic changes spread within these communities. The goal is to improve diagnosis and understanding of inherited disorders in this unique population.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

About 300 people

The number the study aims to enrol. It can still change while the study runs.

Start date

Aug 2016

Expected to finish

Aug 2040

An estimate. End dates often move.

Lead sponsor

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

Families of Amish/Mennonite background which include at least one individual with a clinical phenotype and a pedigree suggestive of genetic disease will be considered for the undiagnosed disease portion of the study. Initial outreach will be to Plain Communities in western Pennsylvania, but all Pain Community members are eligible as long as they have been evaluated by a local clinical geneticist. Any individual (and their family members) from the Plain Community is eligible for the population based studies of founder effects and genetic drift.

Ages

Up to 100 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show 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: * Any person of Amish or Mennonite descent Exclusion Criteria: * Individuals who are not of Amish or Mennonite descent

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Conditions

The condition(s) this trial relates to.

Undiagnosed Diseases

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Undiagnosed disease

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Children's Hospital of Pittsburgh of UPMC

    RECRUITING

    Pittsburgh, Pennsylvania, 15224, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.