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Showing 1–24 of 209 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Oral Contraceptive Clear all
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Estrogen and Microvascular Function

NCT06043310
View directory record Official record
Conditions
Estrogen, Cardiovascular Diseases, Microvasculature, Oral Contraceptive Use
Interventions
Nω-nitro-L-arginine methyl ester (L-NAME), Acetylcholine, Sodium Nitroprusside
Drug
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2031
U.S. locations
1
States / cities
Wauwatosa, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jul 3, 2025 · Synced Jun 11, 2026, 5:50 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Medical Treatment of Endometriosis-Associated Pelvic Pain

NCT00229996
View directory record Official record
Conditions
Endometriosis, Pelvic Pain
Interventions
Oral Contraceptive, Depot-Leuprolide/Norethindrone
Drug
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
18 Years to 52 Years · Female only
Enrollment
194 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2004
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 23, 2014 · Synced Jun 11, 2026, 5:50 AM EDT
Withdrawn No phase listed Observational

Pharmacokinetics, Pharmacodynamics and Cervicovaginal Lavage of Combined Oral Contraceptives and Raltegravir

NCT01597180
View directory record Official record
Conditions
HIV
Interventions
Not listed
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
20 Years to 40 Years · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 4, 2014 · Synced Jun 11, 2026, 5:50 AM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Impact of Oral Contraceptives on GABA and Neurosteroids

NCT00656318
View directory record Official record
Conditions
Healthy
Interventions
oral contraceptive pill (OCP; OCPs)
Other
Lead sponsor
Yale University
Other
Eligibility
18 Years to 42 Years · Female only
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Aug 24, 2009 · Synced Jun 11, 2026, 5:50 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Vitamin B6 Supplementation and Mood States in College Women Taking Oral Contraceptives

NCT04070391
View directory record Official record
Conditions
Depression
Interventions
vitamin B6, control
Dietary Supplement · Other
Lead sponsor
Arizona State University
Other
Eligibility
18 Years to 25 Years · Female only
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Oct 21, 2019 · Synced Jun 11, 2026, 5:50 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study of Elenestinib in Healthy Adult Female Participants

NCT07388511
View directory record Official record
Conditions
Healthy Participants
Interventions
Elenestinib, Midazolam, Levonorgestrel/Ethinyl Estradiol
Drug
Lead sponsor
Blueprint Medicines Corporation
Industry
Eligibility
18 Years to 65 Years · Female only
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Apr 19, 2026 · Synced Jun 11, 2026, 5:50 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Drug-drug Interaction Study Between BMS-663068 and Oral Contraceptives in Healthy Female Volunteers (DDI)

NCT02480881
View directory record Official record
Conditions
Infection, Human Immunodeficiency Virus
Interventions
BMS-663068, Oral Contraceptive, Loestrin 1.5/30
Drug
Lead sponsor
ViiV Healthcare
Industry
Eligibility
18 Years to 40 Years · Female only
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
2
States / cities
Miami, Florida • San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Jul 26, 2017 · Synced Jun 11, 2026, 5:50 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Investigate the Interaction of BMS-986322 and a Combined Oral Hormonal Contraceptive (Ethinyl Estradiol [EE]/Norethindrone [NET]) in Healthy Female Participants

NCT05579574
View directory record Official record
Conditions
Healthy Participants
Interventions
BMS-986322, Loestrin
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years to 40 Years · Female only
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
2
States / cities
Anaheim, California
Source: ClinicalTrials.gov public record
Updated Aug 17, 2023 · Synced Jun 11, 2026, 5:50 AM EDT
Completed No phase listed Observational

A Study to Look at Antiepileptic Drug Levels While on Lamictal or Depakote With or Without an Oral Contraceptive

NCT00296413
View directory record Official record
Conditions
Epilepsy
Interventions
Not listed
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
13 Years to 45 Years · Female only
Enrollment
48 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 13, 2017 · Synced Jun 11, 2026, 5:50 AM EDT
Terminated Phase 4 Interventional Results available

Treatment of Unacceptable Bleeding Patterns in ETG Implant Users With an Oral Contraceptive

NCT01963403
View directory record Official record
Conditions
Abnormal Uterine Bleeding, Unspecified, Uterine Bleeding Heavy
Interventions
EE 30mcg/LNG 150mcg, Placebo
Drug
Lead sponsor
University of California, Davis
Other
Eligibility
14 Years and older · Female only
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
2
States / cities
Sacramento, California • St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated May 11, 2017 · Synced Jun 11, 2026, 5:50 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Study to Evaluate Hormone Patterns and Ovarian Follicular Activity With DR-1021

NCT00544882
View directory record Official record
Conditions
Healthy
Interventions
DR-1021, Mircette®, Kariva®
Drug
Lead sponsor
Teva Branded Pharmaceutical Products R&D, Inc.
Industry
Eligibility
18 Years to 35 Years · Female only
Enrollment
61 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
4
States / cities
Lawrenceville, New Jersey • Columbus, Ohio • Philadelphia, Pennsylvania + 1 more
Source: ClinicalTrials.gov public record
Updated Nov 17, 2021 · Synced Jun 11, 2026, 5:50 AM EDT
Completed Phase 3 Interventional Results available

LCS12 vs Combined Oral Contraceptive (COC) User Satisfaction Study

NCT01254292
View directory record Official record
Conditions
Contraception
Interventions
Levonorgestrel IUD (LCS, BAY86-5028), Yasmin (EE30/DRSP, BAY86-5131)
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years to 29 Years · Female only
Enrollment
567 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
24
States / cities
Tucson, Arizona • La Mesa, California • San Diego, California + 8 more
Source: ClinicalTrials.gov public record
Updated Sep 24, 2017 · Synced Jun 11, 2026, 5:50 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Study of the Effect of Dulaglutide on How the Body Handles Oral Contraceptive in Healthy Female Participants

NCT01458210
View directory record Official record
Conditions
Diabetes Mellitus, Type 2
Interventions
Ortho-Cyclen, Dulaglutide
Drug · Biological
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years to 45 Years · Female only
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Oct 7, 2014 · Synced Jun 11, 2026, 5:50 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Drug Interaction Oral Contraceptive Pill (OCP)

NCT01063023
View directory record Official record
Conditions
Hepatitis C Virus
Interventions
Ortho Tri-Cyclen®, BMS-650032
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years to 40 Years · Female only
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Lenexa, Kansas
Source: ClinicalTrials.gov public record
Updated Jan 24, 2011 · Synced Jun 11, 2026, 5:50 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Study of Safety and Efficacy of an Oral Contraceptive

NCT00932321
View directory record Official record
Conditions
Prevention of Pregnancy
Interventions
Norethindrone Acetate/Ethinyl Estradiol 24 Days, Norethindrone Acetate /Ethinyl Estradiol 21 Days
Drug
Lead sponsor
Warner Chilcott
Industry
Eligibility
18 Years to 45 Years · Female only
Enrollment
938 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004
U.S. locations
34
States / cities
Birmingham, Alabama • Phoenix, Arizona • Chico, California + 28 more
Source: ClinicalTrials.gov public record
Updated Apr 21, 2013 · Synced Jun 11, 2026, 5:50 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

A Study to Evaluate Bleeding Patterns With Three Different Doses of DR-1031 Compared to Seasonale

NCT00394771
View directory record Official record
Conditions
Breakthrough Bleeding
Interventions
DR-1031, Seasonale®, Portia®
Drug
Lead sponsor
Duramed Research
Industry
Eligibility
18 Years to 45 Years · Female only
Enrollment
567 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2008
U.S. locations
50
States / cities
Huntsville, Alabama • Tucson, Arizona • Little Rock, Arkansas + 45 more
Source: ClinicalTrials.gov public record
Updated Jul 25, 2013 · Synced Jun 11, 2026, 5:50 AM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

A Phase 1 Study to Assess the Effect of ABBV-722 on Ethinyl Estradiol and Levonorgestrel Drug Levels in Healthy Adult Female Participants

NCT07502417
View directory record Official record
Conditions
Healthy Volunteer
Interventions
Ethinyl Estradiol + Levonorgestrel, ABBV-722
Drug
Lead sponsor
AbbVie
Industry
Eligibility
18 Years to 65 Years · Female only
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Grayslake, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 27, 2026 · Synced Jun 11, 2026, 5:50 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Trial of Immediate Versus Delayed Initiation of Oral Contraceptive Pills After Abortion

NCT00235534
View directory record Official record
Conditions
Abortion
Interventions
Immediate initiation of OCPs, Delayed initiation of OCPs
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
13 Years to 45 Years · Female only
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2008
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Nov 18, 2012 · Synced Jun 11, 2026, 5:50 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Study of the Effect of Tirzepatide on How the Body Handles Birth Control Pills in Healthy Female Participants

NCT04172987
View directory record Official record
Conditions
Healthy
Interventions
Tirzepatide, EE/NGM
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
18 Years to 45 Years · Female only
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Mar 26, 2023 · Synced Jun 11, 2026, 5:50 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Oral Contraceptive (OC) Estrogen Dose and Breast Proliferation

NCT01318005
View directory record Official record
Conditions
Oral Contraceptive
Interventions
Oral Contraceptive: Ortho-Novum® 1/35, Oral Contraceptive: Ovcon® 35, Oral Contraceptive: Microgestin Fe® 1/20
Drug
Lead sponsor
University of Southern California
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
82 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2015
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Feb 16, 2026 · Synced Jun 11, 2026, 5:50 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 25, 2025 · Synced Jun 11, 2026, 5:50 AM EDT
Withdrawn Phase 4 Interventional

Oral Microdose Lupron Versus Luteal Estradiol Trial in Poor Responder In Vitro Fertilization (IVF) Patients

NCT00826839
View directory record Official record
Conditions
Infertility
Interventions
Oral contraceptive pill and microdose lupron, E2 patch/antagonist
Drug
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years to 50 Years · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 24, 2013 · Synced Jun 11, 2026, 5:50 AM EDT
Completed Phase 2 Interventional Results available

A Study to Evaluate the Efficacy of Seasonique for the Treatment of Cyclic Pelvic Pain

NCT00196313
View directory record Official record
Conditions
Dysmenorrhea
Interventions
levonorgestrel/EE 0.15/0.03 and EE 0.01 mg tablets, Placebo tablet
Drug
Lead sponsor
Duramed Research
Industry
Eligibility
Up to 17 Years · Female only
Enrollment
95 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
13
States / cities
Denver, Colorado • Decatur, Georgia • Louisville, Kentucky + 10 more
Source: ClinicalTrials.gov public record
Updated Sep 21, 2016 · Synced Jun 11, 2026, 5:50 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of St. John's Wort on the Effectiveness of Oral Contraceptives

NCT00026013
View directory record Official record
Conditions
Contraception
Interventions
hypericum perforatum
Drug
Lead sponsor
National Center for Complementary and Integrative Health (NCCIH)
NIH
Eligibility
18 Years to 40 Years · Female only
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2004
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 17, 2006 · Synced Jun 11, 2026, 5:50 AM EDT