This is an exploratory, single center, randomized, parallel, double-blind placebo- and
active-controlled trial in adult males ages 18 to 35 years of age who have male infertility
of unknown cause. Approximately 50 men will be randomly assigned to one of two treatment
groups according to a 1:1 ratio. About half of the men will receive 25mg Androxal and half of
the men will receive a placebo (non-active pill) for 16 weeks. This study will last
approximately 4 months and involve up to 7 visits.
The purpose of this study is to determine the effect the Androxal on sperm production.