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Completed Phase 3 Interventional Results available

Safety and Efficacy of CDB-2914 in Comparison to Levonorgestrel for Emergency Contraception

ClinicalTrials.gov ID: NCT00551616

Public ClinicalTrials.gov record NCT00551616. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Nov 6, 2026, 4:28 PM EST

All trial information on this site comes from the official ClinicalTrials.gov public API (clinicaltrials.gov/api/v2), run by the U.S. National Library of Medicine. We only display that public information; we do not add opinions, endorsements, or any other intent. Always review the official ClinicalTrials.gov record for the latest information.

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

The purpose of this study is to assess the safety and efficacy of CDB-2914 in comparison to levonorgestrel for preventing pregnancy up to 5 days after unprotected sexual intercourse.

Study identification

NCT ID
NCT00551616
Recruitment status
Completed
Study type
Interventional
Phase
Phase 3
Lead sponsor
HRA Pharma
Industry
Enrollment
2,221 participants

Conditions and interventions

Conditions

Interventions

Drug

Eligibility (public fields only)

Age range
16 Years and older
Sex
Female
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Apr 2007 (Type not available)
Primary completion
Apr 2009 (Actual)
Completion
Apr 2009 (Actual)
Last update posted
May 3, 2022

2007 – 2009

United States locations

U.S. sites
23
U.S. states
6
U.S. cities
21
Facility City State ZIP Site status
Planned Parenthood Hollywood Los Angeles California — —
Planned Parenthood Santa Monica Santa Monica California — —
Planned Parenthood of the Rocky Mountains Boulder Colorado — —
Planned Parenthood of the Rocky Mountains Denver Colorado — —
Planned Parenthood of the Rocky Mountains Littleton Colorado — —
Planned Parenthood of Greater Miami Lake Worth Florida — —
Planned Parenthood of Greater Miami Miami Florida — —
Planned Parenthood of Greater Miami North Miami Florida — —
Planned Parenthood of Greater Miami Stuart Florida — —
Planned Parenthood of Greater Miami West Palm Beach Florida — —
Planned Parenthood of Northeast Ohio Akron Health Center Akron Ohio — —
Planned Parenthood of Northeast Ohio Bedford Health Center Bedford Ohio — —
Planned Parenthood of Northeast Ohio East Cleveland Health Center Cleveland Ohio — —
Planned Parenthood of Northeast Ohio Old Brooklyn Health Center Cleveland Ohio — —
Planned Parenthood of Northeast Ohio Kent Health Center Kent Ohio — —
Planned Parenthood of Northeast Ohio Rocky River Health Center Rocky River Ohio — —
Planned Parenthood of Texas Capitol Region Austin Texas — —
Fannin Health Center Houston Texas — —
Planned Parenthood of Houston and Southeast Texas Research Department Houston Texas — —
Planned Parenthood Association of Utah Ogden Utah — —
Planned Parenthood Association of Utah Orem Utah — —
Planned Parenthood Association of Utah Salt Lake City Utah — —
Planned Parenthood Association of Utah West Valley City Utah — —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 10 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT00551616, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted May 3, 2022 · Synced Nov 6, 2026

Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.

Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT00551616 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →