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Contraception clinical trials at UC Davis
3 research studies open to eligible people

  • Join a research study of a potential new form of birth control

    “Help us understand if an investigational vaginal ring is safe and effective in preventing pregnancy”

    open to eligible females ages 18-35

    This will be a multi-site, open-label, randomized clinical trial. The investigators will randomize 300 eligible participants in a 1:1 ratio to two different treatment regimens that are to be followed when using a contraceptive vaginal ring delivering a daily dose of Nestorone® and estradiol (NES-E2 CVR).

    Sacramento, California and other locations

  • Need Emergency Contraception? Participate in a research study.

    “We want to find out which morning-after pill is most effective in women who weigh 176 pounds or more”

    open to eligible females ages 18-40

    The proposed research study is a Phase IIb, multi-center, single-blind, randomized study of UPA 30 mg, LNG 1.5 mg and LNG 3.0 mg to evaluate EC effectiveness in women with weight ≥ 80 kg who present within 72 hours of unprotected intercourse.

    Sacramento, California and other locations

  • Women needed to help us understand what happens when a birth control pill is taken late or a whole day is skipped

    “You may be eligible to help researchers learn more about the most effective way to use estrogen-free birth control pills!”

    open to eligible females ages 18-35

    Norgestrel 75 mcg is a progestin-only pill (POP), which is a kind of oral birth control pill. To be effective in preventing pregnancy, this kind of birth control pill is supposed to be taken every day at the same time, without delaying the intake for more than 3 hours. This study aims to find out if taking the pill 6 hours late or not taking it for one day will affect the way it works.

    Sacramento, California and other locations

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