New vaginal ring aims to improve birth control options

NCT ID NCT01586000

Completed Disease control Sponsor: Kimberly Myer Source: ClinicalTrials.gov ↗

First seen Dec 29, 2025 · Last updated May 23, 2026 · Updated 29 times

Summary

This study tested a new type of birth control vaginal ring that releases two hormones (nestorone and estradiol) to prevent pregnancy. It involved 197 healthy women aged 18-39 with regular cycles. The goal was to see how well the ring controls bleeding and stops ovulation, helping to find the best dose for future use.

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Contacts and locations

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Locations

Columbia University

New York, New York, 10032, United States
Eastern Virginia Medical School

Norfolk, Virginia, 23507, United States
Johns Hopkins School of Medicine

Baltimore, Maryland, 21224, United States
NYU School of Medicine

New York, New York, 10016, United States
Oregon Health & Science University

Portland, Oregon, 97239, United States
Univeristy of Pittsburgh School of Medicine

Pittsburgh, Pennsylvania, 15213, United States
University of Cincinnati

Cincinnati, Ohio, 45267, United States
University of Pennsylvania School of Medicine

Philadelphia, Pennsylvania, 19104, United States

Conditions

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SUPPRESSION OF OVULATION