Status:

NOT_YET_RECRUITING

Long-read Genome Sequencing for the Molecular Diagnosis of Dystonia

Lead Sponsor:

University Hospital, Strasbourg, France

Conditions:

Dystonia

Movement Disorders

Eligibility:

All Genders

Phase:

NA

Brief Summary

Dystonia is a motor disorder caused by involuntary, intermittent, or sustained muscle contractions, leading to abnormal movements or postures. It can affect any body region and often results in signif...

Detailed Description

Dystonia is a motor disorder characterized by abnormal movements and/or postures. It is caused by involuntary, intermittent, or sustained muscle contractions. Dystonia can affect all body segments, le...

Eligibility Criteria

Inclusion

  • Inclusion criteria - Index case:
  • Index case affected by familial dystonia (≥1 first-degree relative affected) and/or sporadic early-onset dystonia (symptom onset before age 50), meeting the criteria of the PFMG-2025 program.
  • Index case who has undergone short-read genome sequencing, which did not lead to a molecular diagnosis.
  • Ability to understand and sign informed consent by the index case and/or their parents or legal guardians for patients under 18 years of age.
  • Availability of a blood sample from the index case and at least two relatives, either affected or unaffected.
  • Inclusion criteria - Relatives:
  • Symptomatic or asymptomatic relative of an index case, who has also undergone short-read genome sequencing without a conclusive molecular diagnosis.
  • Ability to understand and sign informed consent.
  • Exclusion criteria:
  • Index case or relatives who are not affiliated with or not beneficiaries of a social security scheme.
  • Index case and their parents presenting with a condition that, in the opinion of the investigator, would contraindicate participation in the study.
  • Suspected non-genetic etiology (e.g., perinatal hypoxic-ischemic injury, kernicterus, history of severe head trauma or central nervous system infection).

Exclusion

    Key Trial Info

    Start Date :

    August 1 2025

    Trial Type :

    INTERVENTIONAL

    Allocation :

    ESTIMATED

    End Date :

    August 1 2030

    Estimated Enrollment :

    150 Patients enrolled

    Trial Details

    Trial ID

    NCT06999096

    Start Date

    August 1 2025

    End Date

    August 1 2030

    Last Update

    May 31 2025

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