Study Status: Recruiting
Recruit Status: Recruiting
Study Type: Observational
Official Title: The Haemostatic Balance and Neurocognitive Phenotype in Klinefelter Syndrome - The Effect of Testosterone Treatment
Brief Summary: 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 tests and brain fMRI. Furthermore, the effect of gonadal status and any effects of long- or short-term testosterone treatment on the above mentioned parameters are investigated.