New daily birth control pill study pulled before it started

NCT ID NCT03296098

Terminated Disease control Sponsor: Premier Research Source: ClinicalTrials.gov ↗

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 However, the trial was withdrawn before any participants were enrolled, so no results are available.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What could go wrong: The trial was withdrawn before enrolling any participants, so no data on safety or effectiveness exist.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.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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As listed by the trial registrant

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

CONTRACEPTION HEALTHY FEMALE

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

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