The effect of a novel combination of oral etonogestrel (ENG) and im testosterone decanoate
(TD) on suppression of gonadotropins and spermatogenesis as a potential lead for male …

Suppression of spermatogenesis to azoospermia is the goal of hormonal male contraception
based on T combined with gestagens. The combination of the long-acting T, ester …

Recent trials for hormonal male contraception are based on gestagens or GnRH antagonists
combined with oral or injectable testosterone substitution. However, the efficacy of most …

Research has established the principle of hormonal male contraception based on
suppression of gonadotropins and spermatogenesis. All hormonal male contraceptives use …

Prototype hormonal male contraceptive regimens generally achieve only incomplete
suppression to azoospermia with potentially adverse metabolic effects. We have carried out …

Testosterone enanthate (TE) was administered im to 39 normal adult men (age 21–39) to
assess its efficacy as a suppressor of spermatogeneis and to determine possible adverse …

OBJECTIVE Approaches to hormonal male contraception are based on injectable
testosterone esters alone or in combination with gestagens or GnRH analogs but the short …

The principle of hormonal male contraception based on suppression of gonadotropins and
spermatogenesis has been established over the last three decades. All hormonal male …

Hormonal suppression of spermatogenesis is currently being investigated as a method of
reversible male contraception. However, administration of exogenous testosterone (T) …

Studies using high dose testosterone (T) administration in normal men as a male
contraceptive have resulted in azoospermia rates of only 50-70%. Previous studies of T and …