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Showing 1–24 of 38 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: CDB-2914 Clear all
Completed Phase 3 Interventional Results available

A Study of the Efficacy and Safety of a 3-month Treatment Course of Ulipristal Acetate for the Treatment of Abnormal Uterine Bleeding Associated With Leiomyomas

NCT02147197
View directory record Official record
Conditions
Leiomyoma, Uterine Hemorrhage
Interventions
Ulipristal acetate (UPA), Placebo
Drug
Lead sponsor
Allergan
Industry
Eligibility
18 Years to 50 Years · Female only
Enrollment
157 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
28
States / cities
Tucson, Arizona • San Diego, California • Denver, Colorado + 23 more
Source: ClinicalTrials.gov public record
Updated Apr 29, 2019 · Synced Sep 2, 2026, 4:41 PM EDT
Completed Phase 3 Interventional Results available

A Study of the Efficacy and Safety of Ulipristal Acetate Intermittent Treatment for Abnormal Uterine Bleeding Associated With Leiomyomas

NCT02147158
View directory record Official record
Conditions
Leiomyoma, Uterine Hemorrhage
Interventions
Ulipristal acetate (UPA), Placebo
Drug
Lead sponsor
Allergan
Industry
Eligibility
18 Years to 50 Years · Female only
Enrollment
432 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
61
States / cities
Mesa, Arizona • Phoenix, Arizona • Scottsdale, Arizona + 54 more
Source: ClinicalTrials.gov public record
Updated Jun 3, 2019 · Synced Sep 2, 2026, 4:41 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Targeted Video Messaging About Emergency Contraception

NCT03774368
View directory record Official record
Conditions
Contraception
Interventions
Emergency contraception website, Emergency contraception video
Other
Lead sponsor
Planned Parenthood League of Massachusetts
Other
Eligibility
18 Years to 29 Years · Female only
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 15, 2019 · Synced Sep 2, 2026, 4:41 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Effectiveness of Orally Dosed Emergency Contraception in Obese Women - UPA

NCT02859337
View directory record Official record
Conditions
Obesity, Contraception
Interventions
UPA-ECx1, UPA-ECx2
Drug
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
64 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2023
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Feb 5, 2024 · Synced Sep 2, 2026, 4:41 PM EDT
Completed Phase 2 Interventional Results available

Treatment of Uterine Fibroids With the Selective Progesterone Receptor Modulator CDB-2914

NCT00290251
View directory record Official record
Conditions
Leiomyoma
Interventions
ulipristal acetate 20 mg, ulipristal acetate 10 mg, placebo
Drug
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
25 Years to 50 Years · Female only
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2010
U.S. locations
2
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 14, 2024 · Synced Sep 2, 2026, 4:41 PM EDT
Completed No phase listed Observational

Advance Provision of Postpartum Emergency Contraception and Its Effects on Reproductive Autonomy

NCT05285605
View directory record Official record
Conditions
Contraception, Contraceptive Usage, Reproductive Issues
Interventions
Ulipristal Acetate
Drug
Lead sponsor
Northwestern University
Other
Eligibility
16 Years to 40 Years · Female only
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 26, 2025 · Synced Sep 2, 2026, 4:41 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Efficacy Study of Two Continuous Regimens of Oral Daily 5 mg or 10 mg of Ulipristal Acetate (UPA), Versus a Dose of 5.0mg UPA for 24/4 Days

NCT01953679
View directory record Official record
Conditions
Focus: Estrogen-free Oral Contraception
Interventions
Ulipristal Acetate
Drug
Lead sponsor
Premier Research
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
180 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
10
States / cities
Los Angeles, California • San Francisco, California • Aurora, Colorado + 6 more
Source: ClinicalTrials.gov public record
Updated Feb 21, 2016 · Synced Sep 2, 2026, 4:41 PM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers

Study Comparing Emergency Contraception Effectiveness in Women Who Weight ≥ 80 kg

NCT03537768
View directory record Official record
Conditions
Contraception
Interventions
Ulipristal Acetate, Levonorgestrel
Drug
Lead sponsor
Kimberly Myer
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
532 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2022
U.S. locations
18
States / cities
Los Angeles, California • Sacramento, California • San Francisco, California + 14 more
Source: ClinicalTrials.gov public record
Updated Nov 19, 2025 · Synced Sep 2, 2026, 4:41 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study of Ulipristal Acetate in Female Patients With Moderately or Severely Impaired Renal Function, Compared With Matched Healthy Female Subjects

NCT02634437
View directory record Official record
Conditions
Renal Function
Interventions
Ulipristal acetate
Drug
Lead sponsor
Allergan
Industry
Eligibility
18 Years to 80 Years · Female only
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
5
States / cities
Miami, Florida • Orlando, Florida • Saint Paul, Minnesota + 1 more
Source: ClinicalTrials.gov public record
Updated Feb 7, 2018 · Synced Sep 2, 2026, 4:41 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

On Demand Contraception: Ulipristal Acetate Plus a COX-2 Inhibitor at Peak Fertility

NCT03354117
View directory record Official record
Conditions
Contraception
Interventions
Ulipristal Acetate 30 MG Oral Tablet
Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 38 Years · Female only
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Jun 24, 2019 · Synced Sep 2, 2026, 4:41 PM EDT
Completed Not applicable Interventional Results available

The Effect of Jazz on Postoperative Pain and Stress in Patients Undergoing Elective Hysterectomy

NCT01834027
View directory record Official record
Conditions
Pain, Anxiety
Interventions
Jazz music, No music
Behavioral
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
18 Years to 75 Years · Female only
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 14, 2016 · Synced Sep 2, 2026, 4:41 PM EDT
Completed Early Phase 1 Interventional

Ulipristal Acetate for Cervical Preparation

NCT03802149
View directory record Official record
Conditions
Termination of Pregnancy
Interventions
Ulipristal Acetate
Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older · Female only
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Jun 30, 2020 · Synced Sep 2, 2026, 4:41 PM EDT
Withdrawn Phase 2 Interventional Accepts healthy volunteers

Study of the Safety and Efficacy of Ulipristal Acetate (UPA) Used Daily as a Contraceptive

NCT03296098
View directory record Official record
Conditions
Contraception, Healthy Female
Interventions
Ulipristal acetate
Drug
Lead sponsor
Premier Research
Other
Eligibility
18 Years to 35 Years · Female only
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
18
States / cities
Los Angeles, California • Sacramento, California • San Francisco, California + 14 more
Source: ClinicalTrials.gov public record
Updated Nov 19, 2025 · Synced Sep 2, 2026, 4:41 PM EDT
Completed Early Phase 1 Interventional

Inpatient Adolescent Contraception

NCT04423068
View directory record Official record
Conditions
Pregnancy Related, Contraception, Contraceptive Usage, Contraception Behavior, Pregnancy
Interventions
SexHealth II, Contraceptive
Behavioral · Drug
Lead sponsor
Children's Mercy Hospital Kansas City
Other
Eligibility
14 Years to 21 Years · Female only
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 4, 2023 · Synced Sep 2, 2026, 4:41 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Study to Evaluate the Safety and Efficacy of Two Contraceptive Vaginal Rings Delivering a Daily Dose of 1500 or 2500 μg of CDB-2914

NCT00791297
View directory record Official record
Conditions
Contraception
Interventions
CDB-2914
Drug
Lead sponsor
Population Council
Other
Eligibility
21 Years to 40 Years · Female only
Enrollment
55 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2014
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Aug 14, 2017 · Synced Sep 2, 2026, 4:41 PM EDT
Completed Phase 4 Interventional Results available

Ulipristal for Endometriosis-related Pelvic Pain

NCT02213081
View directory record Official record
Conditions
Endometriosis
Interventions
Ulipristal
Drug
Lead sponsor
Northwestern University
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 15, 2024 · Synced Sep 2, 2026, 4:41 PM EDT
Not yet recruiting Phase 2 Interventional

Mammogram Pretreatment With Ulipristal Acetate

NCT07434128
View directory record Official record
Conditions
Mammography Screening, Breast Density
Interventions
Biospecimen Collection, Magnetic Resonance Imaging, Mammogram, Survey Administration, Ulipristal Acetate
Procedure · Other · Drug
Lead sponsor
OHSU Knight Cancer Institute
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Aug 11, 2026 · Synced Sep 2, 2026, 4:41 PM EDT
Completed Phase 3 Interventional Results available

Safety and Efficacy of CDB-2914 for Emergency Contraception

NCT00411684
View directory record Official record
Conditions
Emergency Contraception
Interventions
CDB-2914
Drug
Lead sponsor
HRA Pharma
Industry
Eligibility
18 Years and older · Female only
Enrollment
1,623 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
17
States / cities
San Jose, California • Denver, Colorado • Miami, Florida + 14 more
Source: ClinicalTrials.gov public record
Updated Sep 20, 2021 · Synced Sep 2, 2026, 4:41 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Study of Use of Ella®, an Emergency Contraceptive, Under Simulated OTC Conditions

NCT03208985
View directory record Official record
Conditions
Emergency Contraception
Interventions
Use Phase (Ulipristal Acetate, 30 mg)
Drug
Lead sponsor
HRA Pharma
Industry
Eligibility
Female only
Enrollment
1,270 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
34
States / cities
Rancho Cucamonga, California • Boulder, Colorado • Denver, Colorado + 27 more
Source: ClinicalTrials.gov public record
Updated Dec 1, 2022 · Synced Sep 2, 2026, 4:41 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Safety, Tolerability, and Efficacy of ellaOne® (Ulipristal Acetate) for Emergency Contraception in Postmenarcheal Adolescent Girls and Women

NCT01107106
View directory record Official record
Conditions
Contraception
Interventions
ellaOne® (ulipristal acetate)
Drug
Lead sponsor
HRA Pharma
Industry
Eligibility
Female only
Enrollment
579 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
4
States / cities
Denver, Colorado • Lakewood, Colorado • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 14, 2013 · Synced Sep 2, 2026, 4:41 PM EDT
Completed Phase 3 Interventional Results available

Intervention to End Recurrent Unscheduled Bleeding Trial

NCT03118297
View directory record Official record
Conditions
Contraception, Bleeding
Interventions
Ulipristal Acetate, Placebo oral capsule
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Aug 30, 2018 · Synced Sep 2, 2026, 4:41 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Use of the Synthetic Hormone CDB-2914 in Treating Symptoms of Menopause

NCT00009659
View directory record Official record
Conditions
Postmenopause
Interventions
CDB 2914
Drug
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
Female only
Enrollment
58 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Sep 2, 2026, 4:41 PM EDT
Withdrawn Phase 4 Interventional

Effect of Ulipristal Acetate on Bleeding Patterns and Dysmenorrhea in Women With Adenomyosis

NCT03325868
View directory record Official record
Conditions
Adenomyosis, Heavy Uterine Bleeding, Dysmenorrhea
Interventions
Ulipristal Acetate
Drug
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 51 Years · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Feb 7, 2018 · Synced Sep 2, 2026, 4:41 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Levonorgestrel Intrauterine System For Emergency Contraception

NCT01539720
View directory record Official record
Conditions
Pregnancy, Unplanned, Pregnancy; Accident
Interventions
Ulipristal acetate, levonorgestrel IUS
Drug · Device
Lead sponsor
Planned Parenthood of the St. Louis Region and Southwest Missouri
Other
Eligibility
14 Years to 45 Years · Female only
Enrollment
274 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2018
U.S. locations
3
States / cities
Atlanta, Georgia • Indianapolis, Indiana • St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Feb 19, 2024 · Synced Sep 2, 2026, 4:41 PM EDT