Could this pill be the male birth control breakthrough?
NCT ID NCT07393334
First seen Feb 06, 2026 · Last updated May 19, 2026 · Updated 17 times
Summary
This study tests a new non-hormonal pill, NLS-133, that men take only when needed to temporarily lower sperm count. Ten healthy men will take the pill or a placebo before providing a semen sample. The goal is to see if it safely reduces sperm count and volume without long-term side effects.
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Contacts and locations
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Study contacts
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
Locations
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Population Center for Research in Human Reproduction and Departments of Medicine, University of Washington
RECRUITINGSeattle, Washington, 98195, United States
Contact Phone: •••-•••-•••• Email: •••••@•••••
Conditions
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