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Interested in trying out a male birth control method?

Participate in a research study.

Help us develop a new
male contraceptive gel.
Contribute to discoveries that may improve health care for you and your family!

Contact Us:

Michael Massone

Study Coordinator

(310) 222-1873

Elizabeth Ruiz

Study Coordinator

(310) 222-1728



Christina Wang, MD
Investigator, The Lundquist Institute
Professor of Medicine, David Geffen School of Medicine at UCLA
Assistant Dean, Clinical and Translational Science, David Geffen School of Medicine at UCLA
Associate Director, UCLA Clinical and Translational Science Institute at The Lundquist Institute at Harbor-UCLA Medical Center


Please fill out the information below and one of our Study Coordinators will contact you:

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The Lundquist Institute
1124 West Carson Street
Torrance, CA 90502

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We're inviting couples to take part in a clinical trial for a male contraceptive gel!

Men who wish to control their fertility currently have limited options. They have to rely on their female partner using contraceptives, use condoms, undergo vasectomy, or abstain.

This study is testing a gel as a possible new method for male family planning. It is a transparent gel applied daily to the skin of the shoulders. It aims to decrease a man’s sperm production in a reversible way without reducing sexual drive. The study also looks at the men’s compliance and the couple’s acceptance of this contraceptive method.

The study product is a combination hormone gel that contains Nestorone® and Testosterone. These hormones suppress the production of sperm to prevent the possibility of fathering a baby. Nestorone has been tested and shown to be safe and blocks the production of male hormones needed to make sperm. The testosterone in the gel works by replacing the testosterone that is normally produced by the body.

The study gel is being developed by The Population Council, a non-profit dedicated to reproductive health, in collaboration with the National Insitute of Health.

There will be no cost to you and your partner for the study medication, study doctor’s time or procedures related to this study. Compensation for your time is provided.

Study Length


The study will take approximately 2 years. Men will visit the clinic approximately 31 times and their female partner approximately 10 times.

The trial has 3 phases:

Who can participate:

We're looking for couples to participate. Men and their female partners are both active participants in the study and must both consent. See the main criteria for both men and women.


The male partner must:

  • Be healthy and between 18 and 50 years (inclusive) old.

  • Be sexually active with the female partner in a stable, mutually monogamous relationship for at least 1 year.


The female partner must:

  • Be healthy and between 18 and 34 years (inclusive) old.

  • Be sexually active with the male partner in a stable, mutually monogamous relationship for at least 1 year.

  • Have regular menstrual cycles of 21-35 days.

  • Have no known infertility.



Male Partner: You may receive up to $2,985 for your participation.
Female Partner: You may receive up to $1,600 for your participation.

Resources NCT03452111


Men will start applying the gel once every day.


When the man's sperm count drops to an appropriate level to prevent pregnancy, the couple will begin to use the gel as their only form of contraception for one year. The man's sperm count will be checked regularly


Men will stop using the gel and the study team will monitor recovery of sperm count.