Researchers and physicians from the CHU de Lille are developing a reversible, hormone-free contraceptive device for men called STEOM [1].

This development represents a shift in reproductive health by providing a shared responsibility for contraception. It aims to reduce the historical reliance on female-focused methods and the permanent nature of vasectomies [1, 4].

The project has been underway for about four years [2]. Unlike many current contraceptive options, the STEOM is hormone-free [3], meaning it does not interfere with the body's natural endocrine system. The device is designed to be totally reversible [3], allowing men to regain fertility once the device is removed.

Medical professionals at the CHU de Lille in France are leading the effort [1, 4]. Reports said the insertion process for the device takes approximately 15 minutes [3]. This efficiency is intended to make the procedure accessible and less invasive than surgical alternatives.

While the prototype is currently in development, the team expects the device to be market-ready around 2033 [3]. The timeline allows for the necessary clinical trials, and regulatory approvals required for a medical implant.

The STEOM device is intended to function as a male equivalent to the intra-uterine device, or IUD, used by women. By creating a physical barrier or mechanism to prevent pregnancy without using chemicals, the researchers seek to expand the options available to couples seeking long-term, but non-permanent birth control [1, 4].

“The STEOM device is designed to be totally reversible.”

The introduction of a non-hormonal, reversible male contraceptive could fundamentally alter the landscape of reproductive medicine. By shifting the burden of contraception away from women and providing a middle ground between condoms and permanent sterilization, the STEOM device addresses a long-standing gap in public health and gender equity in family planning.