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ClinicalTrials.gov public records Last synced Sep 30, 2026, 8:47 AM EDT

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Showing 25–48 of 71 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Estradiol/Norethindrone acetate Clear all
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Study of Safety and Efficacy of an Oral Contraceptive

NCT00391807
View directory record Official record
Conditions
Contraception
Interventions
Norethindrone acetate/ethinyl estradiol
Drug
Lead sponsor
Warner Chilcott
Industry
Eligibility
18 Years to 45 Years · Female only
Enrollment
1,683 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2008
U.S. locations
66
States / cities
Phoenix, Arizona • Tempe, Arizona • Tucson, Arizona + 52 more
Source: ClinicalTrials.gov public record
Updated Apr 22, 2013 · Synced Sep 30, 2026, 8:47 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Investigate the Potential Drug-Drug Interaction Between VH4524184 and Oral Contraceptive (Loestrin) in Healthy Adult Female Participants

NCT06310616
View directory record Official record
Conditions
HIV Infections
Interventions
VH4524184, Loestrin
Drug
Lead sponsor
ViiV Healthcare
Industry
Eligibility
18 Years to 45 Years · Female only
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Dec 10, 2024 · Synced Sep 30, 2026, 8:47 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Myomectomy vs Uterine Artery Embolization vs GnRh Antagonist for AUB-L

NCT04856306
View directory record Official record
Conditions
Heavy Menstrual Bleeding, Fibroid Uterus
Interventions
Groups 1 and 2 myomectomy and uterine artery embolization, respectively, are surgical/procedure, Elagolix Oral Product
Other · Drug
Lead sponsor
Medstar Health Research Institute
Other
Eligibility
18 Years and older · Female only
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated May 5, 2022 · Synced Sep 30, 2026, 8:47 AM EDT
Completed Not applicable Interventional

Randomized Study of Oral Contraceptives or Hormone Replacement Therapy in Women With Systemic Lupus Erythematosus

NCT00006133
View directory record Official record
Conditions
Systemic Lupus Erythematosus
Interventions
estradiol, ethinyl estradiol, medroxyprogesterone, norethindrone
Drug
Lead sponsor
National Center for Research Resources (NCRR)
NIH
Eligibility
0 Years and older · Female only
Enrollment
970 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2000
U.S. locations
17
States / cities
Birmingham, Alabama • Los Angeles, California • San Francisco, California + 12 more
Source: ClinicalTrials.gov public record
Updated Jun 24, 2005 · Synced Sep 30, 2026, 8:47 AM EDT
Withdrawn Phase 4 Interventional Accepts healthy volunteers

Surgical Myomectomy Followed by Oral Myfembree Versus Standard of Care Trial (SOUL)

NCT05538689
View directory record Official record
Conditions
Metrorrhagia, Pelvic Pain, Menorrhagia, Leiomyoma
Interventions
Myfembree Oral Product
Drug
Lead sponsor
University of Chicago
Other
Eligibility
18 Years and older · Female only
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
6
States / cities
Chicago, Illinois • Flossmoor, Illinois • Orland Park, Illinois + 1 more
Source: ClinicalTrials.gov public record
Updated Jun 5, 2026 · Synced Sep 30, 2026, 8:47 AM EDT
Not listed Phase 2 Interventional

Estriol Treatment in Multiple Sclerosis (MS): Effect on Cognition

NCT01466114
View directory record Official record
Conditions
Relapsing-remitting Multiple Sclerosis, Secondary-progressive Multiple Sclerosis, Primary-progressive Multiple Sclerosis
Interventions
estriol, Placebo, Norethindrone, Progestin Placebo
Drug · Other
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 55 Years · Female only
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2022
U.S. locations
4
States / cities
Los Angeles, California • Aurora, Colorado • Albuquerque, New Mexico + 1 more
Source: ClinicalTrials.gov public record
Updated Nov 6, 2019 · Synced Sep 30, 2026, 8:47 AM EDT
Recruiting Phase 3 Interventional

The Effect of Medical Management Following Excisional Surgery for Endometriosis: A Randomized Controlled Trial

NCT06439524
View directory record Official record
Conditions
Endometriosis
Interventions
40 mg relugolix, 1 mg estradiol, 0.5 mg norethindrone acetate
Drug
Lead sponsor
Main Line Health
Other
Eligibility
18 Years and older · Female only
Enrollment
110 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
1
States / cities
Wynnewood, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 12, 2026 · Synced Sep 30, 2026, 8:47 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

An Evaluation of the Pharmacokinetics of an Oral Contraceptive (Brevicon) When Co-administered With Albiglutide .

NCT01077505
View directory record Official record
Conditions
Diabetes Mellitus, Type 2
Interventions
albiglutide, Oral contraceptive (Brevicon)
Biological · Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 40 Years · Female only
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Jun 14, 2017 · Synced Sep 30, 2026, 8:47 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Evaluate the Effect of VI-0521 on the Pharmacokinetics of Oral Contraceptive in Healthy Female Subjects

NCT00821496
View directory record Official record
Conditions
Healthy
Interventions
ethinyl estradiol, norethindrone, VI-0521
Drug
Lead sponsor
VIVUS LLC
Industry
Eligibility
19 Years to 64 Years · Female only
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Dec 2, 2009 · Synced Sep 30, 2026, 8:47 AM EDT
Completed Phase 3 Interventional Results available

Study of Relugolix With Estradiol and Norethindrone Acetate in Women With Heavy Menstrual Bleeding Associated With Uterine Fibroids

NCT03751124
View directory record Official record
Conditions
Uterine Leiomyoma, Uterine Fibroids
Interventions
Relugolix, Estradiol/norethindrone acetate, Placebo for relugolix, Placebo for E2/NETA
Drug
Lead sponsor
Myovant Sciences GmbH
Industry
Eligibility
18 Years to 51 Years · Female only
Enrollment
229 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
72
States / cities
Birmingham, Alabama • Mesa, Arizona • Tucson, Arizona + 61 more
Source: ClinicalTrials.gov public record
Updated Jun 25, 2024 · Synced Sep 30, 2026, 8:47 AM EDT
Active, not recruiting No phase listed Observational

MYFEMBREE®: A Retrospective Cohort Study Using an Administrative Healthcare Database to Assess Pregnancy Outcomes in Women Treated With Relugolix Combination Therapy

NCT05739136
View directory record Official record
Conditions
Pregnancy Related, Pregnancy Complications, Pregnancy, High Risk
Interventions
Relugolix + Estradiol + Norethindrone Acetate
Drug
Lead sponsor
Sumitomo Pharma Switzerland GmbH
Industry
Eligibility
18 Years to 50 Years · Female only
Enrollment
530 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Marlborough, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 1, 2025 · Synced Sep 30, 2026, 8:47 AM EDT
Completed Phase 3 Interventional Results available

Efficacy and Safety of Elagolix in Combination With Estradiol/Norethindrone Acetate for the Management of Heavy Menstrual Bleeding Associated With Uterine Fibroids in Premenopausal Women

NCT02654054
View directory record Official record
Conditions
Uterine Fibroids, Heavy Menstrual Bleeding
Interventions
Elagolix, Placebo for Estradiol/Norethindrone Acetate, Estradiol/Norethindrone Acetate, Placebo for Elagolix
Drug
Lead sponsor
AbbVie
Industry
Eligibility
18 Years to 51 Years · Female only
Enrollment
413 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
92
States / cities
Birmingham, Alabama • Mobile, Alabama • Costa Mesa, California + 79 more
Source: ClinicalTrials.gov public record
Updated Jun 29, 2020 · Synced Sep 30, 2026, 8:47 AM EDT
Withdrawn Phase 2 Interventional

Phenotyping of Idiopathic Pelvic Pain With Real-time Uterine Imaging and Relugolix-Combination Therapy Treatment

NCT06279195
View directory record Official record
Conditions
Pelvic Pain
Interventions
Relugolix (40 mg) /estradiol (1 mg)/norethisterone acetate (0.5 mg) oral tablet
Drug
Lead sponsor
Endeavor Health
Other
Eligibility
18 Years to 35 Years · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Evanston, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 28, 2025 · Synced Sep 30, 2026, 8:47 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Ovulation Incidence in Oral Contraceptive Users

NCT03106454
View directory record Official record
Conditions
Contraception, Ovulation
Interventions
Ethinyl Estradiol, Norethindrone acetate, ferrous fumarate, Norethindrone
Drug
Lead sponsor
University of Southern California
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
58 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2024
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Dec 26, 2025 · Synced Sep 30, 2026, 8:47 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Study of Bleeding With Extended Administration of an Oral Contraceptive

NCT00338052
View directory record Official record
Conditions
Contraception
Interventions
Norethindrone 1 mg / ethinyl estradiol 20 mcg
Drug
Lead sponsor
Warner Chilcott
Industry
Eligibility
25 Years to 40 Years · Female only
Enrollment
207 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
23
States / cities
Phoenix, Arizona • Tempe, Arizona • Carmichael, California + 18 more
Source: ClinicalTrials.gov public record
Updated May 8, 2008 · Synced Sep 30, 2026, 8:47 AM EDT
Completed Phase 1 Interventional

A Drug-Drug Interaction Study to Assess the Effect of Trametinib on the Pharmacokinetics of an Oral Contraceptive in Female Patients With Solid Tumors

NCT02705963
View directory record Official record
Conditions
Solid Tumors
Interventions
Trametinib, Oral Contraceptive (1mg norethindrone, 0.035mg ethinyl estradiol)
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years to 59 Years · Female only
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
2
States / cities
Detroit, Michigan • Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Feb 9, 2022 · Synced Sep 30, 2026, 8:47 AM EDT
Not yet recruiting Phase 1 Interventional Accepts healthy volunteers

A Study to Assess Potential Drug-Drug Interactions of E2086 in Healthy Participants

NCT07766369
View directory record Official record
Conditions
Healthy Volunteers
Interventions
E2086
Drug
Lead sponsor
Eisai Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
93 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Aug 14, 2026 · Synced Sep 30, 2026, 8:47 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Pharmacokinetic Study of Colchicine With an Oral Contraceptive

NCT01040845
View directory record Official record
Conditions
Pharmacokinetics
Interventions
Norethindrone/Ethinyl Estradiol, Colchicine, Placebo (for Colchicine)
Drug
Lead sponsor
Mutual Pharmaceutical Company, Inc.
Industry
Eligibility
18 Years to 45 Years · Female only
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
Fargo, North Dakota
Source: ClinicalTrials.gov public record
Updated Jan 5, 2010 · Synced Sep 30, 2026, 8:47 AM EDT
Completed Phase 3 Interventional Results available

Long-Term Safety Study of Elagolix in Combination With Estradiol/Norethindrone Acetate for the Management of Heavy Menstrual Bleeding Associated With Uterine Fibroids in Premenopausal Women

NCT03271489
View directory record Official record
Conditions
Heavy Menstrual Bleeding, Uterine Fibroids
Interventions
Elagolix, Estradiol /norethindrone acetate (E2/NETA), E2/NETA Placebo, Elagolix Placebo
Drug · Other
Lead sponsor
AbbVie
Industry
Eligibility
18 Years to 50 Years · Female only
Enrollment
478 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2024
U.S. locations
155
States / cities
Birmingham, Alabama • Dothan, Alabama • Fairhope, Alabama + 112 more
Source: ClinicalTrials.gov public record
Updated Jul 22, 2025 · Synced Sep 30, 2026, 8:47 AM EDT
Completed Phase 3 Interventional Results available

Study of the Safety and Contraceptive Efficacy of Relugolix Combination Therapy in Women With Uterine Fibroids or Endometriosis Who Are at Risk for Pregnancy

NCT04756037
View directory record Official record
Conditions
Contraception
Interventions
Relugolix Combination Therapy
Drug
Lead sponsor
Sumitomo Pharma Switzerland GmbH
Industry
Eligibility
18 Years to 50 Years · Female only
Enrollment
1,164 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
109
States / cities
Mobile, Alabama • Chandler, Arizona • Mesa, Arizona + 89 more
Source: ClinicalTrials.gov public record
Updated May 13, 2026 · Synced Sep 30, 2026, 8:47 AM EDT
Completed Phase 3 Interventional Results available

LIBERTY 2: Efficacy & Safety Study of Relugolix in Women With Heavy Menstrual Bleeding Associated With Uterine Fibroids

NCT03103087
View directory record Official record
Conditions
Heavy Menstrual Bleeding, Uterine Fibroid
Interventions
Relugolix, Estradiol/norethindrone acetate, Relugolix placebo, Estradiol/norethindrone acetate placebo
Drug
Lead sponsor
Myovant Sciences GmbH
Industry
Eligibility
18 Years to 50 Years · Female only
Enrollment
382 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
89
States / cities
Birmingham, Alabama • Mesa, Arizona • Tucson, Arizona + 78 more
Source: ClinicalTrials.gov public record
Updated Apr 20, 2022 · Synced Sep 30, 2026, 8:47 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Norethindrone/Ethinyl Estradiol 0.4 mg/35 Mcg Chewable Tablets Under Non-Fasted Conditions

NCT01344369
View directory record Official record
Conditions
Healthy
Interventions
Norethindrone/Ethinyl Estradiol, FEMCON® Fe
Drug
Lead sponsor
Teva Pharmaceuticals USA
Industry
Eligibility
18 Years to 45 Years · Female only
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 30, 2011 · Synced Sep 30, 2026, 8:47 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Drug Interaction Study of Danicopan

NCT04709094
View directory record Official record
Conditions
Healthy
Interventions
Danicopan, Warfarin, Bupropion, Ethinyl Estradiol/Norethindrone
Drug
Lead sponsor
Alexion Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
52 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Jan 14, 2021 · Synced Sep 30, 2026, 8:47 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study Measuring the Effectiveness of BMS-986256 Combined With Oral Contraceptive in Healthy Female Participants

NCT04016753
View directory record Official record
Conditions
Healthy Participants
Interventions
BMS-986256, Loestrin
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
21 Years to 40 Years · Female only
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Cypress, California
Source: ClinicalTrials.gov public record
Updated May 31, 2022 · Synced Sep 30, 2026, 8:47 AM EDT