Tetrasomy X
MONDO:0019525Tetrasomy X is a sex chromosome anomaly caused by the presence of two extra X chromosomes in females (48,XXXX instead of 46,XX).
Also known as: 48,XXXX syndrome, quadruple X, tetra X, tetrasomy type X, 48 XXXX, 48 XXXX syndrome
81 clinical trials for this condition and its sub-types.
Follow this condition — get notified about new trialsBroader categories
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New sperm-sorting chip could boost IVF success rates
Disease control OngoingThis study compares a new microfluidic device, SwimCount Harvester, to standard sperm preparation methods in couples undergoing IVF with genetic testing (PGT-A). About 1,600 couples will be randomly assigned to one of the two methods. The goal is to see if the device leads to mor…
Phase: NA • Sponsor: MotilityCount aps • Aim: Disease control
Last updated Jun 27, 2026 09:00 UTC
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Fertility breakthrough? new additive may boost IVF success
Symptom relief OngoingThis study tests whether adding a substance called cpFT to the liquid used to grow eggs and embryos can increase the number of live births in women under 37 who are having a type of IVF called ICSI. About 366 couples took part. The goal is to see if this simple change can improve…
Phase: PHASE3 • Sponsor: Assistance Publique - Hôpitaux de Paris • Aim: Symptom relief
Last updated Jun 27, 2026 08:00 UTC
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AI watches embryo movies to predict IVF success
Knowledge-focused ENROLLING_BY_INVITATIONThis study records 30-second videos of embryos from 1,000 IVF patients and uses artificial intelligence to analyze their movement patterns. The goal is to see if these patterns can predict whether an embryo will lead to a successful pregnancy. Participants receive standard care a…
Sponsor: Viable Biosciences • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:39 UTC
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Resident's journey to master scarless hysterectomy under the microscope
Knowledge-focused OngoingThis study watches a single gynecology resident as they learn to perform a hysterectomy through the vagina using a special camera, leaving no belly scars. The goal is to see how quickly the resident improves, measuring surgery time and any complications. Nineteen women with benig…
Sponsor: Cukurova University • Aim: Knowledge-focused
Last updated Jun 27, 2026 11:02 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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New biobank aims to unlock secrets of infertility and pregnancy
Knowledge-focused ENROLLING_BY_INVITATIONThis study is creating a biobank—a collection of blood samples and health data—to help researchers better understand gynecological disorders, infertility in men and women, and pregnancy-related conditions. Up to 3,000 participants will provide samples at San Raffaele Hospital in …
Sponsor: IRCCS San Raffaele • Aim: Knowledge-focused
Last updated Jun 27, 2026 08:01 UTC
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Brain scans reveal hidden links between body diseases and metabolism
Knowledge-focused OngoingThis study watches 200 people with lung, gut, or hormone diseases over time using special brain scans (PET). It aims to see how these diseases change brain activity and whether those changes can predict tumor return, spread, or survival. No new treatment is tested—just observatio…
Sponsor: The First Affiliated Hospital of Zhengzhou University • Aim: Knowledge-focused
Last updated Jun 27, 2026 07:52 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