New daily birth control pill study pulled before it started

NCT ID NCT03296098

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study was designed to test whether taking 10 mg of ulipristal acetate every day could prevent pregnancy. It planned to enroll healthy women aged 18 to 35. However, the trial was withdrawn before any participants were enrolled, so no results are available.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance

ulipristal acetate

What this could lead to

If successful, this could provide a new daily oral contraceptive option for women.

What could go wrong

The trial was withdrawn before enrolling any participants, so no data on safety or effectiveness exist. It is unclear if this approach will work or be safe.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Columbia University

    New York, New York, 10032, United States

  • Eastern Virginia Medical School (EVMS)

    Norfolk, Virginia, 23507, United States

  • Essential Access

    Los Angeles, California, 90010, United States

  • Johns Hopkins Bayview Medical Center

    Baltimore, Maryland, 21224, United States

  • New York University, School of Medicine

    New York, New York, 10016, United States

  • Oregon Health & Science University

    Portland, Oregon, 97239, United States

  • Planned Parenthood League of Massachusetts

    Boston, Massachusetts, 02215, United States

  • Univeristy of Pittsburgh School of Medicine

    Pittsburgh, Pennsylvania, 15213, United States

  • University Hospitals of Cleveland MacDonald Women's Hospital

    Cleveland, Ohio, 44106, United States

  • University of California, Davis

    Sacramento, California, 95817, United States

  • University of California, San Francisco

    San Francisco, California, 94110, United States

  • University of Chicago

    Chicago, Illinois, 60637, United States

  • University of Cincinnati

    Cincinnati, Ohio, 45267, United States

  • University of Colorado

    Denver, Colorado, 80045, United States

  • University of Hawaii

    Honolulu, Hawaii, 96826, United States

  • University of Pennsylvania Medical Center

    Philadelphia, Pennsylvania, 19104, United States

  • University of Utah

    Salt Lake City, Utah, 84106, United States

  • Women & Infants Hospital of Rhode Island

    Providence, Rhode Island, 02905, United States