Male volunteers receive a new hormonal contraceptive consisting of an implant releasing a hormone and hormone injections in order to investigate the suppressive effect on sperm production and reversibility of sperm production after end of treatment.
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
% of men who had a sperm concentration of 1 million/ml or less at week 16.
Timeframe: Week 16