Overview Male Hormonal Contraceptive Development-ACY-5 Status: Completed Trial end date: 2006-04-01 Target enrollment: Participant gender: Summary The purpose of this research study is to help in the development of male contraception (birth control). Phase: Phase 1/Phase 2 Details Lead Sponsor: University of WashingtonCollaborators: CONRADEunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)Treatments: AcylineContraceptive AgentsMedroxyprogesteroneMedroxyprogesterone AcetateMethyltestosteroneTestosteroneTestosterone 17 beta-cypionateTestosterone enanthateTestosterone undecanoate