Male contraception: views to the 21st century, Bethesda, MD, USA, 9-10 September 1999.

For men who still wish to father children, the contraceptive options currently available are withdrawal and the condom. Although significant progress has been made on hormonal and vaccine-related approaches to male contraception, a marketed product is, at best, several years away. Therefore, the National Institute of Child Health and Human Development convened a workshop to discuss novel strategies for development of male contraceptives that focused on the testis and epididymis. Participants recognized that exploration of these new approaches will necessitate considerable investment of funds and research efforts.