Archive · 24 Jul 2025
Nonhormonal Male Birth Control Pill Shows Positive Human Trial Results
Scientists have developed a nonhormonal birth control pill for men, called YCT-529.
It stops sperm production without affecting hormones.
A trial on 16 men showed the pill was safe with no bad side effects.
The men took different doses.
The pill is in the next stage of testing and might be available in a few years if it's approved.
This pill could offer men a new way to control if they want to have children.
A nonhormonal male birth control pill, YCT-529, has shown promising results in a Phase 1 clinical trial.
The pill works by blocking a vitamin A metabolite from binding to its receptor in the testes, preventing sperm production.
The trial included 16 men who had undergone vasectomies; the drug was well-tolerated with no serious adverse events.
Participants received different dosages of YCT-529 or a placebo to test tolerability and effectiveness.
The pill is in Phase 2 clinical trials and could take several years to become available after approval.
- Who
- The trial involved 16 men aged 32-59 who had vasectomies.
- What
- A nonhormonal birth control pill for men, YCT-529, has shown positive results in a human trial.
- When
- The Phase 1 clinical trial results were recently published.
- Where
- The trials were conducted, and the results were published in Communications Medicine.
- Why
- To determine the safety and effectiveness of the nonhormonal male birth control pill.
- Drug Name
- YCT-529
- Type
- Nonhormonal male birth control pill
- Mechanism
- Blocks a vitamin A metabolite in the testes
- Trial Phase
- Phase 1 (completed), Phase 2 (ongoing)
- Participants
- 16 men
- Side Effects
- No serious adverse events reported