BACKGROUND<\/p>\n
We previously demonstrated in a small pilot study that oral medroxyprogesterone acetate and percutaneous testosterone (OMP\/PT) induce reversible spermatogenesis suppression. The aims of this study were to determine the rate of spermatogenetic inhibition and recovery and to obtain preliminary data on efficacy for a larger population under OMP\/PT.<\/p>\n
METHODS<\/p>\n
A total of 35 healthy men with normal spermiograms requesting male hormonal contraception were treated with OMP (20 mg\/day) and PT (50–125 mg\/day) for periods up to 18 months. Couples were included in a contraceptive efficacy phase after a value of ≤1 million\/ml spermatozoa was reached between 1 and 3 months of treatment.<\/p>\n
RESULTS<\/p>\n
Sperm counts decreased by 47% at 1 month, reaching 90% at 2 months and 98–100% between 4 and 8 months. At 3 months, 80% of men had ≤1 million\/ml spermatozoa. Follicle-stimulating hormone and luteinizing hormone decreased to 35% of pretreatment levels after 1 month of treatment and to 75–80% at 2 and 6 months, respectively. Plasma testosterone and estradiol levels were in the eugonadal range at 3, 6, 9 and 12 months of treatment. Dihydrotestosterone concentrations were 2–4 times higher than pretreatment values. The rate of spermatogenetic recovery was rapid (73 ± 29.5 days). During the efficacy phase (211 months for 25 couples), one pregnancy attributable to poor compliance of the male partner was observed.<\/p>\n
CONCLUSIONS<\/p>\n
OMP\/PT efficiently inhibits spermatogenesis in 80% of men, maintains testosterone at physiological levels and avoids the need for parenteral administration, which is poorly accepted by French men. These results justify larger studies to define a more adequate dosage of OMP\/PT and to confirm its efficacy and safety.<\/p>\n","protected":false},"excerpt":{"rendered":"
BACKGROUND We previously demonstrated in a small pilot study that oral medroxyprogesterone acetate and percutaneous testosterone (OMP\/PT) induce reversible spermatogenesis suppression. The aims of this study were to determine the rate of spermatogenetic inhibition and recovery and to obtain preliminary … Continue reading