New birth control shot shows promise in early trial

NCT ID NCT04143659

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

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This early-stage study tested a new injectable birth control called levonorgestrel butanoate (LB) in 136 healthy women aged 18-40. The goal was to see how the body processes the drug and how it affects ovulation. Participants received one of three doses by injection into muscle or under the skin, and researchers monitored hormone levels and ovarian activity over time.

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As listed by the trial registrant

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

FEMALE CONTRACEPTION HEALTHY WOMEN

Contacts and locations

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Locations

Boston Medical Center Corporation

Boston, Massachusetts, 02118, United States
Columbia University

New York, New York, 10032, United States
Comprehensive Women's Health Center

Denver, Colorado, 80230, United States
Eastern Virginia Medical School

Norfolk, Virginia, 23507, United States
Oregon Health and Science University

Portland, Oregon, 97239, United States
University of California, Davis

Davis, California, 95817, United States
University of Utah

Salt Lake City, Utah, 84132, United States

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