Condition
Male Contraception clinical trials and research
As of November 12, 2026, Find a Trial lists 2 Male Contraception clinical trials that are recruiting, at sites in 2 countries (most in New Zealand (1), United States (1)). By phase: Phase 1/2 (1), Phase 2 (1). Every study is explained in plain English. Data from ClinicalTrials.gov and NIH RePORTER, updated November 12, 2026.
- 2Clinical trials
- 2Countries
All recruiting trials (2)
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Testing NLS-133 as a non-hormonal, on-demand male contraceptive.
This will test whether a single oral dose of NLS-133 taken 90 or 180 minutes before ejaculation can reduce semen volume and sperm count in healthy men aged 18–55.
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Evaluating YCT-529 for male contraception in healthy men
This study is testing a new male contraceptive called YCT-529 to see if it is safe and how it affects healthy men who don't want to have children.
Quick answers
How many Male Contraception clinical trials are recruiting right now?
2, as of November 12, 2026. We update this list each time we refresh our data from ClinicalTrials.gov.
Where are these trials running?
In 2 countries. The most sites are in New Zealand (1 trial), United States (1 trial). Each study page lists its sites and which ones are recruiting.
What phases are they in?
Phase 1/2: 1, Phase 2: 1. Trials with no phase listed are usually device, behavioural or observational studies.
How do I join one?
Open a study, check the "Is this trial a fit for you?" section, then contact the study team listed on the page. They will ask a few screening questions. Asking is free and does not commit you to anything. Talk it over with your doctor first.
Find the studies that fit you
A list is a starting point. Tell us your situation in your own words and we'll rank the studies that match and explain why. It's free and needs no account.