Testing for Y chromosome in Turner syndrome patients using blood samples

Identification of Y Chromosome From Free Circulating DNA in Patients With Turner Syndrome

Not applicable Interventional University Hospital, Strasbourg, France · NCT06202846

This study is testing a new blood test to see if it can find Y chromosome material in women with Turner syndrome, which could help identify those at risk for certain health issues.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment50 (estimated)
Ages2 Years to 74 Years
SexFemale
SponsorUniversity Hospital, Strasbourg, France Academic / other
Locations2 sites (Lyon and 1 other locations)
Trial IDNCT06202846 on ClinicalTrials.gov

What this trial studies

This study aims to develop a blood test that analyzes free circulating DNA (cfDNA) to identify the presence of Y chromosome sequences in patients diagnosed with Turner syndrome. Turner syndrome is a condition that affects females and can lead to serious complications, including an increased risk of gonadoblastoma if Y chromosome material is present. The study will involve patients aged 2 to 74 years who have a confirmed diagnosis of Turner syndrome. By utilizing cfDNA, which is easily collected from blood samples, the researchers hope to create a reliable method for detecting Y chromosome material that may be difficult to identify through traditional methods.

Who should consider this trial

Good fit: Ideal candidates for this study are females aged 2 to 74 years with a confirmed diagnosis of Turner syndrome.

Not a fit: Patients with a male phenotype or those unable to provide informed consent will not benefit from this study.

Why it matters

Potential benefit: If successful, this test could significantly improve the early detection of gonadoblastoma risk in Turner syndrome patients.

How similar studies have performed: While the approach of using cfDNA for genetic analysis is established, this specific application in Turner syndrome is novel and has not been extensively tested.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* patient aged 2 to 74 years
* with a diagnosis of Turner syndrome confirmed by karyotype
* who have given their consent or whose legal representative(s) have given their consent(s) consent(s) to participate in the study
* affiliated to the French Social Security system or benefiting from such a system

Exclusion Criteria:

* male phenotype
* patient or legal representative(s) with comprehension difficulties (linguistic, etc.)
* patients covered by articles L.1121-5 to L.1121-8 of the CSP (French Public Health Code)

Where this trial is running

Lyon and 1 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Turner SyndromeTurner syndromeY chromosome
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.