THE LH RESPONSE TO LH-RELEASING HORMONE IN CHILDREN WITH TRUE ISOSEXUAL PRECOCIOUS PUBERTY TREATED WITH CYPROTERONE ACETATE

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Abstract
Fourteen girls and one boy with isosexual precocious puberty were submitted to LHRH stimulation tests, during and without therapy with cyproterone acetate. In addition, fourteen girls with isosexual precocious puberty not receiving any therapy were tested and served as controls. It was found that cyproterone acetate induces suppression of the responsiveness of the pituitary gland to secrete LH on LHRH stimulation. Daily oral therapy was found to be more effective than the regimen of intramuscular depot injections. These findings demonstrate that cyproterone acetate has an antigonadotrophic effect.