Weekly pill could replace daily birth control

NCT ID NCT06394999

First seen Nov 01, 2025 · Last updated Jun 12, 2026 · Updated 29 times

Summary

This study tests a once-weekly pill (mifepristone 50 mg) as a contraceptive for women aged 18-35. Over 600 participants will use it for one year to see how well it prevents pregnancy and whether it causes fewer side effects than daily hormone-based birth control. The pill does not contain hormones, and researchers will monitor safety and user experience.

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Contacts and locations

Locations

  • Admiraal De Ruyter Ziekenhuis

    Goes, 4462 RA, Netherlands

  • Amsterdam Universitair Medische Centra

    Amsterdam, 1105 AZ, Netherlands

  • Canisius Wilhelmina Ziekenhuis

    Nijmegen, 6532 SZ, Netherlands

  • Diakonessenhuis

    Utrecht, 3582 KE, Netherlands

  • Flevoziekenhuis

    Almere Stad, 1315 RA, Netherlands

  • Franciscus Gasthuis

    Rotterdam, 3045 PM, Netherlands

  • Leiden University Medical Center

    Leiden, 2333 ZA, Netherlands

  • Maastricht Universitair Medisch Centrum

    Maastricht, 6229 HX, Netherlands

  • Martini Ziekenhuis

    Groningen, 9728 NZ, Netherlands

  • Maxima Medisch Centrum

    Veldhoven, 5504 DB, Netherlands

  • Medisch Centrum Leeuwarden

    Leeuwarden, 8934 AD, Netherlands

  • Medisch Spectrum Twente

    Enschede, 7512 KZ, Netherlands

  • Noordwest Ziekenhuisgroep

    Alkmaar, 1815 JD, Netherlands

  • Ziekenhuisgroep Twente

    Almelo, 7609 PP, Netherlands

Conditions

Explore the condition pages connected to this study.