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Scientists track rare DNA repair diseases to learn how they progress

NCT ID NCT05484570

Knowledge-focused Sponsor: University of Minnesota 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 is for people with rare DNA repair disorders like Cockayne syndrome, xeroderma pigmentosum, or trichothiodystrophy. Researchers will watch how symptoms like movement and balance change over time. No treatments are given—the goal is to better understand these conditions.

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 40 people

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

Started

Oct 2022

Expected to finish

Dec 2026

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

Any person 6 months or older who is either diagnosed with a DNA repair disorder, or has a family member who is diagnosed with a DNA repair disorder

Ages

6 months and older

Sex

Anyone

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: * Diagnosis of Cockayne syndrome (CS), xeroderma pigmentosum (XP), or trichothiodystrophy (TTD), based on genetic testing and/or key clinical characteristics l characteristics * Has one or more of the following neurodevelopmental or neurological complications * Gross motor delay (non-ambulatory or started walking after age 18 months) * Language delay (non-verbal or started talking after 18 months) * Altered muscle tone (hypertonia, dystonia, hypotonia) * Gait difficulties, including stiff gait, short stride, frequent falls, use of orthotics, use of walker * Tremors * Microcephaly * Is a family member of an individual with the above condition * No restrictions regarding current ambulatory status * Minimum age for enrollment eligibility will be 6 months due to fragility of neonates with severe forms of DNA repair disorders and limitations of motor assessment scales in infants younger than 6 months. There will be no maximum age for enrollment eligibility. * No restrictions regarding gender, race, or ethnicity. * Voluntary written consent from the participant if adult capable of consenting or parent/guardian if minor or not capable of consenting * Written consent of Legally Authorized Representative if enrolling adult lacks capacity to consent Exclusion Criteria: * Any prior history of systemic gene or cell-based therapy * Current participation in an interventional clinical trial

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Conditions

The condition(s) this trial relates to.

Cockayne syndrome DNA repair disease trichothiodystrophy Trichothiodystrophy Syndromes xeroderma pigmentosum

As listed by the trial registrant

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

Cockayne syndrome DNA repair disorder Trichothiodystrophy Xeroderma pigmentosum

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

  • University of Minnesota- Twin Cities

    RECRUITING

    Minneapolis, Minnesota, 55455, United States

More trials for these conditions

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