Abstract
Forty percent of US pregnancies are unintended despite currently available contraceptives. A substantial number of men use the currently available methods of male contraception, condoms and vasectomy, and a large majority would be interested in novel forms of male contraception if available. Research into male contraception has been ongoing for more than 50 years, with hormonal contraceptives nearing clinical utility and non-hormonal methods hopefully becoming available, albeit with a longer time frame. However, uncertainly regarding benchmarks for the efficacy and safety of male contraception continue to be an issue with development and regulatory approval. In addition, pharmaceutical industry support is minimal with the NIH and Foundations being the main research funders. Given the continuing high rates of unintended pregnancy, many of which are now occurring in areas with extremely restricted access to legal abortion, additional focus and investment in male contraceptive development is imperative.
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