The eXtroardinarY Babies Study: Natural History of Health and Neurodevelopment in Infants and Young Children With Sex Chromosome Trisomy
Recruiting
Observational Study
Klinefelter Syndrome
Trisomy X
XYY Syndrome
XXXY and XXXXY Syndrome
Xxyy Syndrome
Xyyy Syndrome
Xxxx Syndrome
Xxxxx Syndrome
Xxxyy Syndrome
Xxyyy Syndrome
Xyyyy Syndrome
Male With Sex Chromosome Mosaicism
No Placebo Group
Every participant receives an active treatment — no one gets a placebo.
No Study Drug
Researchers observe your health over time — no experimental treatment is given.
At a Glance
- Age
- 6 Weeks – 13 Months
- Sex
- Any
- Study type
- Observational
- Participants needed
- 300 (estimated)
- Sponsor
- University of Colorado, Denver · Other
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About This Trial
This study is designed to research the natural history of neurodevelopment, health and early hormonal function in infants with XXY/Klinefelter syndrome, XYY, XXX and other sex chromosome variations in an effort to identify early predictors of developmental and health outcomes. The Investigators will also evaluate different developmental screening tools in infants with sex chromosome variations so …
Trial Locations
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Eligibility Criteria
Inclusion Criteria:
1. Prenatal diagnosis of sex chromosome aneuploidy (by cfDNA, chorionic villi sampling, and/or amniocentesis)
2. Postnatal confirmatory karyotype of XXY, XYY, XXX, XXYY, XYYY, XXXY, XXXX, XXXXX, XXXXY, XXXYY, XXYYY, XYYYY (including any mosaicism with \<80% 46,XX or 46,XY cell l…
Contacts