Men Sign Up for Birth Control Trials After 40-Year Wait

Men are finally getting what they've been asking for: real birth control options beyond condoms and surgery.

Three promising male contraceptives are moving through clinical trials right now, and researchers say they're overwhelmed by volunteers. From the U.S. to Kenya to Germany, men are emailing daily asking to participate in studies that could change reproductive health forever.

The options include a daily gel that reduces sperm production, a non-hormonal pill, and an implanted gel called ADAM that acts like a temporary vasectomy. The implant has already shown it can eliminate sperm for at least 24 months and could reach the market faster than medications since it qualifies as a medical device.

"Men want this," said Nadja Mannowetz, chief science officer at YourChoice, which is testing the pill version called YCT-529. She worried recruitment would be difficult but has been flooded with interest from men across the globe.

The timing reflects a cultural shift. In 2021, 39% of American men said they'd try male birth control. By 2023, after the Supreme Court overturned federal abortion rights, that number jumped to 49%. Internationally, 61% of men expressed openness to male contraceptives.

Women are on board too. A 2023 survey found two-thirds of American women want their partners using birth control, and 75% believe their partners would be willing.

For decades, few options existed. Back in 1987, a group of Swiss men called the Hodenbaders took matters into their own hands, literally sitting in heated chairs and submerging their testicles in 113-degree water for 45 minutes daily to reduce sperm count. It worked but risked burns and demanded serious commitment.

Today's methods are far more practical. The NES/T gel completed Phase 2 trials and is expected to advance. YCT-529 researchers have observed successful sperm reduction in their Phase 2a study. ADAM is currently testing safety in humans at three sites.

The Ripple Effect

This isn't just about convenience. Men cite both ideology and practicality for wanting birth control. Some want to support female partners facing restricted reproductive healthcare access. Others are single and want control over their own fertility decisions without relying solely on condoms, which have a real-world failure rate of up to 16%.

Heather Vahdat, executive director of the Male Contraceptive Initiative, noticed an immediate surge in inquiries after the Dobbs decision. Her organization receives constant requests from men asking to join any available clinical trial or registry.

Both YourChoice and Contraline maintain online registries where men can sign up for future trial consideration. The lists keep growing.

After 40 years of waiting, male birth control is moving from radical DIY experiments to mainstream medicine, driven by men who want to share responsibility for preventing unwanted pregnancies.