Premier Research

This study looked at how well an experimental female condom prevents pregnancy and sexually transmitted diseases. About 500 healthy women aged 18 to 40 used the condom as their main birth control for up to 7 months. Researchers tracked pregnancy rates, infections, and how accepta…

This study tested a new vaginal ring that releases hormones to prevent pregnancy. About 1,200 healthy women aged 18-40 used the ring for one year. Researchers measured how well it worked and checked for side effects.

This study tested two different doses of a birth control patch that releases the hormone levonorgestrel through the skin. The patch is designed to prevent pregnancy by thickening cervical mucus, making it harder for sperm to reach an egg. About 120 healthy women aged 18-44 took p…

This study tested whether a daily oral pill can safely and temporarily lower sperm counts in healthy men to prevent pregnancy. Ninety-two men took either the experimental drug (DMAU) alone, DMAU plus another hormone (LNG), or a placebo for 12 weeks. The goal was to see if sperm c…

This early-stage study tested a new male hormone pill (11β-MNTDC) as a potential birth control method. Twelve healthy men took a single dose to check for safety and how the drug works in the body. The goal is to develop a daily pill that temporarily stops sperm production without…

This completed Phase 2 trial tested a vaginal ring that releases two hormones (Nestorone and estradiol) to prevent pregnancy. 385 healthy women aged 18-35 took part. The study compared two different ways of using the ring (continuous vs. cyclic) to see how well it works and how i…