Abstract：
:The effects of cyproterone acetate (CPA), administered orally in dos es of either 10 or 20 mg/day for 26 weeks, were studied in 15 healthy male volunteers. During treatment, there was a decrease in sperm density and in normal-shaped sperm and an increase in pathological and immature forms, an increase in dead spermatozoa, reduced motility of spermatozoa, an in vitro decrease in the speed of sperm transport, and decreased ability of spermatozoa to penetrate ovulatory cervical mucus. Blood plasma levels of testosterone declined to about 40% of basal values, though there were no effects on sex behavior. Plasma luteinizing hormone (LH) and follicle stimulating hormone (FSH) levels were unaltered, while seminal plasma alkaline phosphatase values were considerably increased. Seminal plasma levels of fructose and sialic acid levels were unchanged, while the cortisol-binding capacity of transcortin was markedly increased. The results indicate that CPA has potential as a fertility control agent in males, though further study on a mass phase 3 scale is required before final conclusions can be made.
journal_name
Contraceptionjournal_title
Contraceptionauthors
Koch UJ,Lorenz F,Danehl K,Ericsson R,Hasan SH,Keyserlingk DV,Lübke K,Mehring M,Römmler A,Schwartz U,Hammerstein Jdoi
10.1016/0010-7824(76)90081-0subject
Has Abstractpub_date
1976-08-01 00:00:00pages
117-35issue
2eissn
0010-7824issn
1879-0518pii
0010-7824(76)90081-0journal_volume
14pub_type
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