Clinical trials: Klinefelter Syndrome
Klinefelter Syndrome
Interrogating Fatty Acid Metabolism Impairment and Clinical Correlates in Males with Klinefelter Syndrome
This study will learn more about how the body uses energy. Usually, the body uses sugars as energy first and then fats are used when the sugar stores are gone. Some people have trouble using fats as energy.
- Trial name
- NCT05498090
- Testing
- Fenofibrate 145 mg
- Where
- United States
- Volunteers
- 44 people, healthy volunteers welcome
- Sponsor
- University of Colorado, Denver
Microdeletion Syndromes, Trisomy 21
Development of Non-invasive Prenatal Test for Microdeletion and Other Genetic Syndromes Based on Cell Free DNA
The purpose of this study is to collect blood from families with a child who has been diagnosed with a chromosomal disorder including microdeletions in order to further develop a non-invasive prenatal screening test based on…
- Conditions
- Microdeletion Syndromes, Trisomy 21, Trisomy 18, Trisomy 13
- Trial name
- Microdel Triad (NCT02109770)
- Where
- 2 sites in United States
- Volunteers
- 216 people
- Sponsor
- Natera, Inc.
Klinefelter Syndrome (47, XXY), Sex Chromosome Aneuploidy
Clinical, Biochemical, and Cytogenetic Heterogeneity in Mosaic 46,XX/47,XXY Sex Chromosome Aneuploidy
Mosaic sex chromosome aneuploidy 47,XXY/46,XX is an exceptionally rare variant within the spectrum of Klinefelter syndrome. Available data remain limited, especially regarding adult phenotype and long-term characteristics, and no…
- Conditions
- Klinefelter Syndrome (47, XXY), Sex Chromosome Aneuploidy, Disorders of Sex Development (DSD), Sex Chromosome Disorders
- Trial name
- MOSAI-XX (NCT07885163)
- Where
- France
- Volunteers
- 257 people
- Sponsor
- Université Paris-Saclay
Klinefelter Syndrome, Thrombosis
Thrombosis and Neurocognition in Klinefelter Syndrome
The haemostatic balance and neurocognitive capability of men with Klinefelter syndrome is compared to healthy controls by using specific biochemical assays for coagulation and fibrinolysis and a selection of neuropsychological…
- Trial name
- NCT02526628
- Where
- Denmark
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- University of Aarhus
Klinefelter Syndrome
Subcapsular Orchiectomy in Men With Klinefelter Syndrome
Men with Klinefelter syndrome undergo unilateral subcapsular ochiectomy, and the removed testicular tissue is examined for presence of sperm and cryopreserved in small pieces for fertility treatment and scientific purposes.
- Trial name
- NCT01750632
- Testing
- Orchiectomy
- Where
- Denmark
- Volunteers
- 14 people
- Sponsor
- Odense University Hospital
Klinefelter Syndrome, XXY Syndrome
Study of Psychological and Motor Effects of Testosterone in Adolescents With XXY/Klinefelter Syndrome
The purpose of this study is to determine if testosterone replacement therapy leads to changes in psychological factors and/or motor skills in adolescent males with 47,XXY (also called Klinefelter syndrome).
- Trial name
- TestoXXY/KS (NCT01585831)
- Testing
- Testosterone gel 1%
- Where
- United States
- Volunteers
- 48 people
- Sponsor
- University of Colorado, Denver
Congenital Adrenal Hyperplasia, Hypogonadotropic Hypogonadism
Growing up With the Young Endocrine Support System (YESS!)
Transition from paediatric to adult endocrinology is a challenge for adolescents, families and doctors. Up to 25% of young adults with chronic endocrine disorders are lost to follow-up ('drop-out') once the young adult moves out…
- Conditions
- Congenital Adrenal Hyperplasia, Hypogonadotropic Hypogonadism, Growth Hormone Deficiency, Combined Pituitary Hormone Deficiency
- Trial name
- YESS (NCT04252001)
- Testing
- YESS! game, Snake '97, Transition-toolkit
- Where
- 7 sites in Belgium, Netherlands and 2 more
- Volunteers
- 160 people, healthy volunteers welcome
- Sponsor
- dr. Laura C. G. de Graaff-Herder
Azoospermia Anogenital Distance AMH
Relationship Between Anogenital Distance, Serum AMH, and mTESE in Klinefelter Syndrome
Azoospermia, the absence of sperm in the ejaculate, affects approximately 1% of males and 15% of infertile men. Non-obstructive azoospermia (NOA) accounts for 60% of azoospermic patients, who rely solely on testicular sperm…
- Trial name
- KS (NCT06396117)
- Testing
- mTESE (microscopic testicular sperm extraction)
- Where
- Egypt
- Volunteers
- 56 people
- Sponsor
- Cairo University
Klinefelter Syndrome
Klinefelter Fertility Preservation
Klinefelter syndrome occurs in 1 in 600 males and is a common cause of infertility in men. It appears scar tissue forms in these boys' testicles, leading to progressive destruction over their lifetimes.
- Trial name
- NCT01817296
- Testing
- Testicular Biopsy
- Where
- United States
- Volunteers
- 15 people
- Sponsor
- Boston Children's Hospital
Azoospermia, Nonobstructive
The Potential of Sperm Retrieved by Micro-TESE to Fertilize Vitrified/Warmed Oocytes
Couples referred for microdissection-TESE (m-TESE) due to Klinefelter's syndrome, maturation stop in the spermatogenesis, or failed retrieval of testicular spermatozoa by conventional techniques with needle or TruCut are…
- Trial name
- NCT03809026
- Where
- 2 sites in Denmark
- Volunteers
- 100 people
- Sponsor
- Odense University Hospital
Klinefelter Syndrome, Hypergonadotropic Hypogonadism
Androgen for Leydig Cell Proliferation
Patients with infertility often presents alterations at ultrasonographic examination of the testis. These alterations include a much higher incidence of small, multiple, non-palpable hypoechoic micro-nodules that can show…
- Conditions
- Klinefelter Syndrome, Hypergonadotropic Hypogonadism, Hypergonadotropic Azospermia, Hypergonadotropic Cryptozoospermia
- Trial name
- ALCeP (NCT01206270)
- Testing
- Testosterone undecanoate, Castor Oil
- Where
- Italy
- Volunteers
- 56 people
- Sponsor
- University of Roma La Sapienza
Sex Chromosome Disorders
Clinical and Genetic Aspects of Fetuses With Sex-chromosome Disorders
To conduct a comprehensive clinical investigation of electively aborted fetuses with sex chromosome disorders and their placentas, in parallel with analyses of epigenetic alterations and changes in gene expression in these…
- Trial name
- NCT07304193
- Where
- Denmark
- Volunteers
- 120 people
- Sponsor
- University of Aarhus
Down Syndrome, Edwards Syndrome
Whole Blood Specimen Collection From Pregnant Subjects
To obtain whole blood specimens from pregnant subjects to be used for research and development and clinical validation studies of prenatal assays.
- Conditions
- Down Syndrome, Edwards Syndrome, Patau Syndrome, Klinefelter Syndrome
- Trial name
- NCT02430584
- Testing
- Observational - no intervention
- Where
- United States
- Volunteers
- 5,000 people, healthy volunteers welcome
- Sponsor
- Progenity, Inc.
Klinefelter Syndrome
Adaptation Among Adolescents and Adults With Klinefelter Syndrome
This study aims to understand the impact of living with Klinefelter syndrome (KS) and the factors that contribute to adaptation in adolescents and adults.
- Trial name
- NCT00896272
- Where
- United States
- Volunteers
- 302 people
- Sponsor
- National Human Genome Research Institute (NHGRI)
Sex Chromosome Disorders
Clinical and Genetic Aspects in Fetuses and Children With Sex Chromosome Disorders
The aim of the project is to: 1. Investigate organ development and growth in fetuses with sex chromosome disorders; 2. Investigate growth, development, and morbidity in children with sex chromosome disorders during the first…
- Trial name
- NCT07341412
- Where
- Denmark
- Volunteers
- 300 people
- Sponsor
- University of Aarhus
Fragile X Syndrome, Angelman Syndrome
Parent and Infant Inter(X)Action Intervention (PIXI)
The objective is to develop and test, through an iterative process, an intervention to address and support the development of infants with a confirmed diagnosis of a neurogenetic disorder with associated developmental delays or…
- Conditions
- Fragile X Syndrome, Angelman Syndrome, Prader-Willi Syndrome, Dup15Q Syndrome
- Trial name
- NCT03836300
- Testing
- Parent-Infant Inter(X)action Intervention (PIXI)
- Where
- United States
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- RTI International
Klinefelter Syndrome, Trisomy X
The eXtroardinarY Babies Study: Natural History of Health and Neurodevelopment in Infants and Young Children With Sex Chromosome Trisomy
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…
- Conditions
- Klinefelter Syndrome, Trisomy X, XYY Syndrome, XXXY and XXXXY Syndrome
- Trial name
- NCT03396562
- Testing
- Assessments of Development and Growth
- Where
- 2 sites in United States
- Volunteers
- 300 people
- Sponsor
- University of Colorado, Denver
Sex Chromosome Abnormality, Klinefelter Syndrome
Endocrine, Metabolic, Cardiovascular and Immunological Aspects of Sex Chromosome Abnormalities in Relation to Genotype
Observational study of 160 patients with sex-chromosome abnormalities and 160 matched controls. Blood, fat, muscle, skin, buccal swaps, urine will be collected and analyzed for DNA, RNA and methylation patterns.
- Conditions
- Sex Chromosome Abnormality, Klinefelter Syndrome, Turner Syndrome, Metabolic Disease
- Trial name
- EMKISCA (NCT05425953)
- Testing
- No intervention other than obtaining biopsies
- Where
- Denmark
- Volunteers
- 320 people, healthy volunteers welcome
- Sponsor
- University of Aarhus
Sex Chromosome Aneuploidy
Generating Advancements Through Longitudinal Analysis in X and Y Variations (GALAXY)
GALAXY is a registry research study that plans to learn more about individuals with X\&Y variations (also called sex chromosome aneuploidies) through collecting information from medical records.This includes genetic tests…
- Trial name
- GALAXY (NCT06373861)
- Testing
- no intervention
- Where
- United States
- Volunteers
- 5,000 people, healthy volunteers welcome
- Sponsor
- University of Colorado, Denver
Klinefelter Syndrome, Azoospermia
Sperm Production in Kleinfelter Syndrome Patients After Mesenchymal Stem Cell Injection
Klinefelter syndrome KS is caused by an additional X chromosome in males (47,XXY). Clinical findings are nonspecific during childhood; thus, the diagnosis commonly is made during adolescence or adulthood in males who have small…
- Trial name
- NCT02414295
- Testing
- Mesenchymal stem cell injection
- Where
- Egypt
- Volunteers
- 1 people
- Sponsor
- Man Clinic for Andrology, Male Infertility and Sexual Dysfunction