Disorder of sexual differentiation

This study tests if a new growth hormone medicine (somapacitan) given once a week works as well as the standard daily growth hormone (Norditropin) for children who are very short due to being born small, or having Turner syndrome, Noonan syndrome, or unknown causes. About 412 chi…

This study tests a new long-acting growth hormone (lonapegsomatropin) given once a week, compared to the standard daily growth hormone shot, in 48 prepubertal children with Turner syndrome who have not had growth hormone before. The goal is to see if the weekly shot is safe and h…

This study offers girls from birth to age 17 the chance to freeze their ovarian tissue before medical treatments that could harm their fertility, such as chemotherapy or radiation. The tissue is removed surgically and stored. Later, if they want to have children, the tissue can b…

This study tests a new growth hormone medicine called somapacitan, given once a week, in 47 children who are very short due to being born small for gestational age, or having Turner syndrome, Noonan syndrome, or idiopathic short stature. The main goal is to see if it is safe and …

This study looks at two surgical treatments for moderate to severe gynecomastia (enlarged male breasts). One group gets standard laparoscopic surgery to remove breast tissue, while the other gets that plus a lift of the nipple-areola complex. Researchers will compare recovery, br…

This study looks at freezing ovarian tissue in girls with Turner syndrome, a condition that often causes early ovary failure and infertility. Researchers want to find out which patients are most likely to have healthy eggs in their tissue by checking their genes, hormones, and me…

This study aims to uncover the genetic roots of aortic aneurysms and valve disease by analyzing tissue and blood samples from 3,000 participants. Researchers will look for new disease-causing genes and factors that affect disease severity. The goal is to build a biorepository to …

This 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…

This 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. …

This 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…

This 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…