Gonosome anomaly
MONDO:0020058Chromosomal disorder in which the chromosomal anomaly involves an gonosome. A gonosome is a chromosome responsible for sex determination. In humans and most animals, the sex chromosomes are designated X and Y.
Also known as: Sex-chromosome anomaly
17 clinical trials for this condition and its sub-types.
Follow this condition — get notified about new trialsSub-types
Broader categories
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Fertility drug trial for men with no sperm pulled before it began
Disease control TerminatedThis study aimed to see if the drug clomiphene citrate could help men with a condition called non-obstructive azoospermia, where the body produces little to no sperm. The plan was to give the drug or a placebo for nine months, then check if sperm could be found in the semen or th…
Phase: PHASE3 • Sponsor: Hospices Civils de Lyon • Aim: Disease control
Last updated Jun 27, 2026 14:00 UTC
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Can acne drug or hormone shots help men with low sperm count?
Disease control ENROLLING_BY_INVITATIONThis study tests two treatments—isotretinoin (an acne medication) and hCG (a hormone)—to see if they can help men with low or no sperm count produce moving sperm. About 100 men aged 19 to 50 will take one of the drugs for three months. The goal is to find new options for male inf…
Phase: PHASE2 • Sponsor: University of Nebraska • Aim: Disease control
Last updated Jun 27, 2026 12:10 UTC
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New study aims to unlock mysteries of sex chromosome disorders in children
Knowledge-focused ENROLLING_BY_INVITATIONThis study follows 300 fetuses and children with sex chromosome disorders to track their growth, organ development, and overall health. Researchers will also look at genetic and gut microbiome factors. The goal is to better understand how these conditions affect children over tim…
Sponsor: University of Aarhus • Aim: Knowledge-focused
Last updated Jun 27, 2026 08:11 UTC
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Scientists probe genetic secrets of lost fetuses to unravel sex chromosome mysteries
Knowledge-focused ENROLLING_BY_INVITATIONThis study looks at fetuses with sex chromosome disorders (like extra or missing X or Y chromosomes) that were either miscarried or electively aborted. Researchers will analyze the placenta and fetal tissues to see how the chromosome changes affect gene activity and development. …
Sponsor: University of Aarhus • Aim: Knowledge-focused
Last updated Jun 27, 2026 08:09 UTC
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300 men with klinefelter syndrome to be tracked for decades in landmark study
Knowledge-focused ENROLLING_BY_INVITATIONThis study will follow 300 men with Klinefelter syndrome (an extra X chromosome) who are treated at a Danish hospital. Researchers will collect medical records, scans, and blood samples to map how the condition affects growth, hormones, fertility, heart health, and mental well-be…
Sponsor: Rigshospitalet, Denmark • Aim: Knowledge-focused
Last updated Jun 26, 2026 15:49 UTC
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10,000 genomes scoured for clues to rare brain diseases
Knowledge-focused ENROLLING_BY_INVITATIONThis study will analyze DNA from 10,000 people with suspected rare genetic disorders affecting the brain. Researchers will map structural changes in chromosomes to find which genes cause disease. The goal is to improve genetic diagnosis and lay groundwork for future treatments.
Sponsor: Karolinska Institutet • Aim: Knowledge-focused
Last updated Jun 26, 2026 13:56 UTC