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Showing 1–24 of 193 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: ethinyl estradiol Clear all
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Characterize the Drug Levels of an Oral Contraceptive With and Without BMS-986166 in Healthy Female Participants of Childbearing Potential

NCT04934696
View directory record Official record
Conditions
Healthy Participants
Interventions
BMS-986166, Oral contraceptive
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years to 45 Years · Female only
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Cypress, California
Source: ClinicalTrials.gov public record
Updated Mar 17, 2022 · Synced Sep 6, 2026, 7:50 AM EDT
Completed Not applicable Interventional

A Study to Evaluate the Effects of Different Methods of Birth Control on the Drug Actions of Zidovudine (an Anti-HIV Drug) in HIV-Positive Women and to Compare Zidovudine Metabolism in Men and Women

NCT00000897
View directory record Official record
Conditions
HIV Infections
Interventions
Zidovudine
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 45 Years
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
6
States / cities
San Francisco, California • Jacksonville, Florida • Albany, New York + 3 more
Source: ClinicalTrials.gov public record
Updated Mar 1, 2011 · Synced Sep 6, 2026, 7:50 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Assess CYP3A4 Modulator, Oral Contraceptive, and pH Modifier Drug Interactions for ABI-H2158 in Healthy Adults

NCT04142762
View directory record Official record
Conditions
Chronic Hepatitis B
Interventions
ABI-H2158, Itraconazole, Rifampin, Midazolam, Ethinyl Estradiol / Levonorgestrel, Esomeprazole, Placebo matching oral contraceptive
Drug
Lead sponsor
Assembly Biosciences
Industry
Eligibility
18 Years to 65 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Mar 3, 2020 · Synced Sep 6, 2026, 7:50 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Randomized, Placebo-Controlled, Two-Period, Crossover Study to Evaluate the Effect of Lurasidone HCl on Oral Contraceptive Pharmacokinetics in Healthy Female Subjects

NCT00549666
View directory record Official record
Conditions
Pharmacokinetics
Interventions
Lurasidone 40 mg, Placebo 40 mg, Ortho Tri-Cyclen
Drug
Lead sponsor
Sumitomo Pharma America, Inc.
Industry
Eligibility
18 Years to 40 Years · Female only
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Sep 13, 2011 · Synced Sep 6, 2026, 7:50 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A STUDY TO ESTIMATE THE EFFECT OF PF-06651600 ON THE PHARMACOKINETICS (PK) OF ORAL CONTRACEPTIVE (OC)

NCT03608241
View directory record Official record
Conditions
Healthy Females
Interventions
PF-06651600, Ethinyl estradiol (EE) and levonogestrel (LN)
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 55 Years · Female only
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
2
States / cities
Coral Gables, Florida • Miami, Florida
Source: ClinicalTrials.gov public record
Updated Apr 8, 2019 · Synced Sep 6, 2026, 7:50 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Efficacy and Safety Study for an Oral Contraceptive Containing Folate

NCT00468481
View directory record Official record
Conditions
Neural Tube Defects, Contraception, Oral Contraceptives (OC)
Interventions
Drospirenone/Ethinylestradiol/Methyltetrahydrofolate, Drospirenone/Ethinylestradiol (Yaz)
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years to 40 Years · Female only
Enrollment
385 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
9
States / cities
Anaheim, California • San Diego, California • Baltimore, Maryland + 6 more
Source: ClinicalTrials.gov public record
Updated Apr 22, 2014 · Synced Sep 6, 2026, 7:50 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 29, 2011 · Synced Sep 6, 2026, 7:50 AM EDT
Recruiting Early Phase 1 Interventional

Identifying Oxytocin Deficiency in Pediatric Patients With Pituitary Disease

NCT07568509
View directory record Official record
Conditions
Arginine Vasopressin Deficiency, Oxytocin Deficiency, Pediatric Disease, Hypopituitarism
Interventions
Norethindrone Acetate-Ethinyl Estradiol
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
7 Years to 21 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 20, 2026 · Synced Sep 6, 2026, 7:50 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Study To Estimate The Effect of PF-06650833 On The Pharmacokinetics (PK) of Oral Contraceptive (OC)

NCT05064332
View directory record Official record
Conditions
Healthy
Interventions
PF-06650833, Ethinyl estradiol (EE) and levonogestrel (LN)
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 60 Years · Female only
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
South Miami, Florida
Source: ClinicalTrials.gov public record
Updated Oct 1, 2023 · Synced Sep 6, 2026, 7:50 AM EDT
Completed Phase 4 Interventional Results available

Medical Therapy Versus Radiofrequency Endometrial Ablation in the Initial Treatment of Menorrhagia

NCT01165307
View directory record Official record
Conditions
Menorrhagia
Interventions
Estradiol 30mcg / Levonorgestrel 150mcg monophasic oral contraceptive pills, Naproxen sodium pills, NovaSure® Radiofrequency Endometrial Ablation
Drug · Device
Lead sponsor
Abimbola Famuyide
Other
Eligibility
30 Years to 55 Years · Female only
Enrollment
77 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2015
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 19, 2017 · Synced Sep 6, 2026, 7:50 AM EDT
Completed Phase 2 Interventional

Effect of Biosynthetic Growth Hormone and/or Ethinyl Estradiol on Adult Height in Patients With Turner Syndrome

NCT00001221
View directory record Official record
Conditions
Gonadal Dysgenesis, Turner's Syndrome
Interventions
Growth Hormone (Humatrope)
Drug
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
Female only
Enrollment
160 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1987 – 2003
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Sep 6, 2026, 7:50 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

PARIS or PAtch RIng Study: A Trial to Evaluate NuvaRing Versus OrthoEvra

NCT00269620
View directory record Official record
Conditions
Contraception
Interventions
ethinyl estradiol/etonogestrel vaginal ring, ethinyl estradiol/norelgestromin transdermal contraceptive
Drug
Lead sponsor
University of Pittsburgh
Other
Eligibility
Female only
Enrollment
500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2006
U.S. locations
10
States / cities
Los Angeles, California • Chicago, Illinois • Baltimore, Maryland + 7 more
Source: ClinicalTrials.gov public record
Updated Oct 20, 2008 · Synced Sep 6, 2026, 7:50 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

An Open-label Study to Evaluate the Effects of Concurrent Administration of Vaginal Antimycotic Medication Miconazole Nitrate on the Pharmacokinetics of Nestorone and Ethinyl Estradiol Delivered by a Contraceptive Vaginal Ring in Normal Ovulating Women

NCT02215395
View directory record Official record
Conditions
Antifungal Drug Adverse Reaction
Interventions
NES/EE CVR
Drug
Lead sponsor
Population Council
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Springfield, Missouri
Source: ClinicalTrials.gov public record
Updated Aug 14, 2017 · Synced Sep 6, 2026, 7:50 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

The Effects of Annovera™ and Tampon Co-Usage on the Pharmacokinetics of Segesterone Acetate and Ethinyl Estradiol

NCT04272008
View directory record Official record
Conditions
Contraception
Interventions
Segesterone Acetate and Ethinyl Estradiol, Tampon
Drug · Other
Lead sponsor
TherapeuticsMD
Industry
Eligibility
18 Years to 35 Years · Female only
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 28, 2021 · Synced Sep 6, 2026, 7:50 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Assessing the Effect of Multiple Doses of Zibotentan on the Pharmacokinetics of Single Doses of Combined Oral Contraceptives in Healthy Female Participants of Non-childbearing Potential.

NCT05505162
View directory record Official record
Conditions
Healthy Female Participants
Interventions
Zibotentan, EE/LNG
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
35 Years to 75 Years · Female only
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Brooklyn, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 8, 2023 · Synced Sep 6, 2026, 7:50 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Evaluate Safety and Efficacy of an OC Preparation vs Placebo for 6 Treatment Cycles in Women With Moderate Acne.

NCT00651469
View directory record Official record
Conditions
Acne Vulgaris
Interventions
YAZ (DRSP 3 mg/EE 0.02 mg, BAY86-5300), Placebo
Drug
Lead sponsor
Bayer
Industry
Eligibility
14 Years to 45 Years · Female only
Enrollment
534 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2004
U.S. locations
27
States / cities
Birmingham, Alabama • Huntsville, Alabama • Mesa, Arizona + 23 more
Source: ClinicalTrials.gov public record
Updated Dec 29, 2014 · Synced Sep 6, 2026, 7:50 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Study Investigating the Efficacy and Safety of a Contraceptive Patch for 13 Cycles

NCT00910637
View directory record Official record
Conditions
Contraception
Interventions
Gestodene/EE Patch (BAY86-5016)
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years to 45 Years · Female only
Enrollment
1,502 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
63
States / cities
Birmingham, Alabama • Glendale, Arizona • Phoenix, Arizona + 54 more
Source: ClinicalTrials.gov public record
Updated Apr 7, 2021 · Synced Sep 6, 2026, 7:50 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Relationship Between the Menstrual Cycle and Heart Disease in Women

NCT01546454
View directory record Official record
Conditions
Coronary Heart Disease
Interventions
Ethinyl Estradiol-Levonorgestrel combination, leuprolide acetate, Estradiol, Progesterone
Drug
Lead sponsor
Oregon Health and Science University
Other
Eligibility
21 Years to 40 Years · Female only
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Mar 21, 2017 · Synced Sep 6, 2026, 7:50 AM EDT
Not yet recruiting Phase 4 Interventional Accepts healthy volunteers

Teen Vulnerability to Irritability: Brain and Estrogen Changes

NCT07544966
View directory record Official record
Conditions
Depression - Major Depressive Disorder, Irritability
Interventions
Kurvelo, Placebo COC
Drug
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
12 Years to 16 Years · Female only
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2029
U.S. locations
2
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 23, 2026 · Synced Sep 6, 2026, 7:50 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Drospirenone/Ethinyl Estradiol (3 mg/0.02 mg) Tablets Under Fasting Conditions.

NCT01182194
View directory record Official record
Conditions
Healthy
Interventions
Drospirenone/Ethinyl Estradiol (Gianvi®), YAZ®
Drug
Lead sponsor
Teva Pharmaceuticals USA
Industry
Eligibility
18 Years to 35 Years · Female only
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006
U.S. locations
1
States / cities
Fargo, North Dakota
Source: ClinicalTrials.gov public record
Updated Dec 7, 2010 · Synced Sep 6, 2026, 7:50 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

The Effect of BMS-986165 Combined With an Oral Contraceptive (Ethinyl Estradiol/Norethindrone) in Healthy Female Patients

NCT03262727
View directory record Official record
Conditions
Systemic Lupus Erythematosus, Arthritic Psoriasis, Psoriasis, Inflammatory Bowel Diseases
Interventions
BMS-986165, Loestrin 1.5/30 (1.5 mg norethindrone acetate/30 μg ethinyl estradiol)
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years to 40 Years · Female only
Enrollment
49 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Mar 18, 2020 · Synced Sep 6, 2026, 7:50 AM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

A Research Study Looking Into How NNC0662-0419 Works With Birth Control Pills and Emptying of the Stomach in Women Not Able to Become Pregnant With Excess Body Weight

NCT07525791
View directory record Official record
Conditions
Overweight, Obesity
Interventions
NNC0662-0419, Oral contraceptive, Acetaminophen
Drug
Lead sponsor
Novo Nordisk A/S
Industry
Eligibility
18 Years to 64 Years · Female only
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Apr 23, 2026 · Synced Sep 6, 2026, 7:50 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

In Vivo Drug Interaction Pharmacokinetic Study of Tenofovir 1% Gel and Three Commonly Used Vaginal Products

NCT01813162
View directory record Official record
Conditions
HIV Prevention
Interventions
Tenofovir 1% gel, Vaginal product
Drug
Lead sponsor
CONRAD
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
101 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
2
States / cities
San Francisco, California • The Bronx, New York
Source: ClinicalTrials.gov public record
Updated May 21, 2015 · Synced Sep 6, 2026, 7:50 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Study of Evacetrapib in Healthy Female Participants

NCT01746732
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Ortho-Cyclen, Evacetrapib
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years to 45 Years · Female only
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Oct 8, 2018 · Synced Sep 6, 2026, 7:50 AM EDT