Genetical analysis of extra X in Klinefelter Syndrome: 47XXY

Genetical analysis of extra X in Klinefelter Syndrome: 47XXY - Cytogenetical analysis of chromosomal abnormality of Klinefelter Syndrome

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000024542

Enrollment

Registered

2016-10-24

Start date

2016-10-24

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Klinefelter Syndrome

Interventions

We investigated the origin of the extra-X using X chromosome haplotype markers, 12X-STR (short tandem repeat) in 11 KS patients and their parents who had consented to participate in this study.

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: KS patients and their parents who had consented to participate in this study.

Exclusion criteria

Exclusion criteria: In the case when informed consent could not be obtained from patients or their parents.

Design outcomes

Primary

Measure	Time frame
12X-STR (short tandem repeat) in KS patients and their parents to investigate the origin of the extra X.	—

Secondary

Measure	Time frame
Physical and cognitive development of KS patient's babies.	—

Countries

Japan

Contacts

Public ContactAtsushi Tanaka

Saint Mother Hospital Obstetrics and Gynecology

incho@stmother.com093-601-2000

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026