Turner syndrome

MONDO:0019499

Turner syndrome is a chromosomal disorder associated with the complete or partial absence of an X chromosome.

Also known as: gonadal dysgenesis, 45,X gonadal dysgenesis, 45,X syndrome, 45,X/46,XX syndrome, 45,X0 syndrome, 45X syndrome, karyotype 45, X, monosomy X

38 clinical trials for this condition and its sub-types, 29 tagged with Turner syndrome itself.

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Where it sits in the disease tree

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Part of

↑ Syndromic disease (7158) ↑ Inherited primary ovarian failure (48) ↑ Sex chromosome disorder of sex development (34) ↑ Gonadal dysgenesis (32)

Sub-types of Turner syndrome

Turner syndrome due to structural X chromosome anomalies 0 trials
Mixed gonadal dysgenesis 0 trials
Monosomy X 0 trials
1 sub-type
- Mosaic monosomy X 0 trials

Including sub-types (38) Tagged with Turner syndrome (29)

Trials to join now! 12 Not yet recruiting 4 Not yet finished but already full! 9 Completed 3 Terminated 1

Ultrasound could uncover hidden vascular risks in turner syndrome

Knowledge-focused Stopped early

This study is looking at whether yearly ultrasound scans can detect blood vessel abnormalities throughout the body in women with Turner syndrome, not just in the heart area. Turner syndrome is a genetic condition that increases the risk of serious vascular problems, which can sho…

Sponsor: University Hospital, Strasbourg, France • Aim: Knowledge-focused

Last updated Aug 23, 2026 00:00 UTC

Turner syndrome

Where it sits in the disease tree

Ultrasound could uncover hidden vascular risks in turner syndrome