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Showing 1–24 of 140 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Combined oral contraceptive Clear all
Completed Phase 1 Interventional Accepts healthy volunteers

Potential Drug Interaction Study Between Vemircopan and Rosuvastatin, Metformin, Levonorgestrel/Ethinyl Estradiol-containing Oral Contraceptives, and Carbamazepine

NCT06071442
View directory record Official record
Conditions
Healthy Participants
Interventions
Vemircopan, Rosuvastatin, Metformin, Levonorgestrel / Ethinyl Estradiol, Carbamazepine
Drug
Lead sponsor
Alexion Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Brooklyn, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 11, 2025 · Synced Sep 24, 2026, 1:57 AM EDT
Active, not recruiting Phase 3 Interventional

Study Of Oral Elagolix Tablets In Combination With Combined Oral Contraceptive Capsules/Tablets To Assess Dysmenorrhea Response In Adult Female Participants With Endometriosis And Associated Moderate To Severe Pain

NCT04333576
View directory record Official record
Conditions
Endometriosis
Interventions
Elagolix, Placebo, Combined Oral Contraceptive
Drug
Lead sponsor
AbbVie
Industry
Eligibility
18 Years to 49 Years · Female only
Enrollment
800 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
176
States / cities
Anniston, Alabama • Birmingham, Alabama • Dothan, Alabama + 134 more
Source: ClinicalTrials.gov public record
Updated Jun 11, 2026 · Synced Sep 24, 2026, 1:57 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Drug-drug Interaction Study of CTP-543 and Oral Contraceptives in Healthy Female Subjects

NCT04309643
View directory record Official record
Conditions
Healthy Volunteers
Interventions
CTP-543, Combined oral contraceptive containing Ethinyl estradiol (EE) and Levonorgestrel (LNG)
Drug
Lead sponsor
Concert Pharmaceuticals
Industry
Eligibility
18 Years to 65 Years · Female only
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Jul 15, 2020 · Synced Sep 24, 2026, 1:57 AM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers

A Study to Evaluate the Pharmacokinetics of an Oral Contraceptive When Co-administered With GSK2248761 in Healthy Adult Female Subjects.

NCT01195974
View directory record Official record
Conditions
Infection, Human Immunodeficiency Virus, HIV Infections
Interventions
YASMIN, GSK2248761, Placebo
Drug · Other
Lead sponsor
ViiV Healthcare
Industry
Eligibility
18 Years to 40 Years · Female only
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Fargo, North Dakota
Source: ClinicalTrials.gov public record
Updated Feb 19, 2019 · Synced Sep 24, 2026, 1:57 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 Sep 24, 2026, 1:57 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Atazanavir and Ritonavir (ATV/RTV) and an Oral Contraceptive in Healthy Females

NCT00357604
View directory record Official record
Conditions
HIV Infections
Interventions
Ortho Tri-Cyclen (ethinyl estradiol + norgestimate), Ortho Tri-Cyclen LO (ethinyl estradiol + norgestimate) + Atazanavir/Ritonavir for 14 days then Ortho Tri-Cyclen for 7 days
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years to 45 Years · Female only
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Apr 7, 2011 · Synced Sep 24, 2026, 1:57 AM EDT
Recruiting Not applicable Interventional

Hormonal Optimization: Late vs. Immediate Start After Discontinuation of Oral Contraceptives in Assisted Reproductive technologY (HOLIDAY)

NCT07225660
View directory record Official record
Conditions
Fertility Preservation
Interventions
OCP pause
Other
Lead sponsor
Shady Grove Fertility Reproductive Science Center
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
394 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
3
States / cities
Orange, Connecticut • Rockville, Maryland • New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 1, 2026 · Synced Sep 24, 2026, 1:57 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 Sep 24, 2026, 1:57 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Compare Daily Ulipristal Acetate and Combined Oral Contraceptive Effects on Breast Epithelial Cell Proliferation

NCT02922127
View directory record Official record
Conditions
Contraception
Interventions
Ulipristal Acetate, Combined Oral Contraceptive Pill
Drug
Lead sponsor
Columbia University
Other
Eligibility
18 Years to 39 Years · Female only
Enrollment
29 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
2
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 6, 2020 · Synced Sep 24, 2026, 1:57 AM EDT
Completed Phase 1 Interventional

A Study of LY3437943 in Postmenopausal Female Participants Who Are Overweight or Obese

NCT06039826
View directory record Official record
Conditions
Overweight
Interventions
LY3437943, Ethinyl Estradiol, Drospirenone
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
40 Years to 60 Years · Female only
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
2
States / cities
South Miami, Florida • San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Jul 25, 2024 · Synced Sep 24, 2026, 1:57 AM EDT
Withdrawn Phase 3 Interventional Accepts healthy volunteers

Hormone Replacement for Premature Ovarian Insufficiency

NCT02922348
View directory record Official record
Conditions
Primary Ovarian Insufficiency
Interventions
Hormone Replacement Therapy, Combined Oral Contraceptives
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
14 Years to 45 Years · Female only
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 4, 2019 · Synced Sep 24, 2026, 1:57 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study Comparing Two Manufacturing Processes for Levonorgestrel 90 mg/Ethinyl Estradiol 20 mg (LNG/EE) in Healthy, Cycling Women

NCT00319163
View directory record Official record
Conditions
Healthy
Interventions
levonorgestrel/ethinyl estradiol
Drug
Lead sponsor
Wyeth is now a wholly owned subsidiary of Pfizer
Industry
Eligibility
18 Years to 35 Years · Female only
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Aug 6, 2009 · Synced Sep 24, 2026, 1:57 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Cannabidiol and Oral Contraceptive Pills: Exploring a Drug-Drug Interaction

NCT04396730
View directory record Official record
Conditions
Contraception
Interventions
Cannabidiol Oil, Placebo, Combined oral contraceptive pill
Drug
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
9 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Jul 10, 2023 · Synced Sep 24, 2026, 1:57 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Learn If the Study Medicine Called PF-08049820 Changes How the Body Processes the Other Study Medicines Called Oral Contraceptives, Midazolam, and Dabigatran in Healthy Adult Female Participants

NCT07190430
View directory record Official record
Conditions
Atopic Dermatitis
Interventions
PF-08049820, Midazolam, Dabigatran Etexilate, Portia (EE and LN) or equivalent oral tablet
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older · Female only
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Sep 8, 2026 · Synced Sep 24, 2026, 1:57 AM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Pharmacokinetic Study of Antiretroviral Drugs and Related Drugs During and After Pregnancy

NCT00042289
View directory record Official record
Conditions
HIV Infections
Interventions
atazanavir/cobicistat, darunavir/ritonavir dosage #1, darunavir/ritonavir dosage #2, darunavir/ritonavir dosage #3, elvitegravir/cobicistat, dolutegravir, tenofovir alafenamide fumarate (TAF), TAF w/cobicistat, TAF w/cobicistat or ritonavir, efavirenz, darunavir/cobicistat, lopinavir/ritonavir dosage #1, atazanavir/ritonavir/tenofovir dosage #1, rifampicin, ethambutol, isoniazid, pyrazinamide, kanamycin, amikacin, capreomycin, moxifloxacin, levoflaxacin, ofloxacin, ethionamide/prothionamide, terizidone/cycloserine, para-aminosalicylic acid (PAS), high dose INH, bedaquiline, clofazamine, delamanid, linezolid, pretomanid, ethinyl estradiol, etonogestrel implant, nevirapine, amprenavir, abacavir, lopinavir/ritonavir dosage #2, indinavir/ritonavir dosage #1, fosamprenavir/ritonavir, lopinavir/ritonavir dosage #3, atazanavir/ritonavir dosage #1, didanosine delayed release (Videx® EC), emtricitabine, tenofovir, nelfinavir dosage #1, tipranavir/ritonavir, lopinavir/ritonavir dosage #4, raltegravir, etravirine, maraviroc, atazanavir/ritonavir dosage #2, tenofovir/atazanavir/ritonavir dosage #2, nelfinavir dosage #2, indinavir/ritonavir dosage #2, rilpivirine, darunavir/ritonavir dosage #4
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
Not listed
Enrollment
1,578 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2020
U.S. locations
39
States / cities
Birmingham, Alabama • La Jolla, California • Long Beach, California + 26 more
Source: ClinicalTrials.gov public record
Updated Dec 1, 2025 · Synced Sep 24, 2026, 1:57 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study to Assess the Pharmacokinetic Drug-Drug Interactions of Lemborexant When Coadministered With an Oral Contraceptive, Famotidine, or Fluconazole in Healthy Subjects

NCT03451110
View directory record Official record
Conditions
Healthy Subjects
Interventions
lemborexant, Loestrin, famotidine, fluconazole
Drug
Lead sponsor
Eisai Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Sep 5, 2018 · Synced Sep 24, 2026, 1:57 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Hormonal Birth Control and the Risk of Acquiring HIV

NCT00006324
View directory record Official record
Conditions
HIV Infections
Interventions
Ethinyl estradiol/levonorgestrel, Medroxyprogesterone acetate
Drug
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
16 Years to 35 Years · Female only
Enrollment
6,360 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1999 – 2002
U.S. locations
1
States / cities
Research Triangle Park, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 6, 2008 · Synced Sep 24, 2026, 1:57 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Nexplanon and Combined Oral Contraceptive (COC) Combined Use Study

NCT02852265
View directory record Official record
Conditions
Contraception
Interventions
Etonogestrel contraceptive implant
Drug
Lead sponsor
University of California, Davis
Other
Eligibility
16 Years to 35 Years · Female only
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Dec 27, 2018 · Synced Sep 24, 2026, 1:57 AM EDT
Completed Not applicable Interventional

Evaluating Household Visits and Small Groups to Increase Contraception Use Among Married Adolescent Girls in Rural Niger

NCT03226730
View directory record Official record
Conditions
Contraception
Interventions
Household Visits, Small Groups
Behavioral
Lead sponsor
University of California, San Diego
Other
Eligibility
13 Years and older
Enrollment
2,898 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2021
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Feb 23, 2023 · Synced Sep 24, 2026, 1:57 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

The Effects of Continuous Administration of a Monophasic Oral Contraceptive on Bleeding Days and Endometrial and Ovarian Function

NCT00128726
View directory record Official record
Conditions
Menstrual Cycle, Healthy
Interventions
Not listed
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
62 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001 – 2006
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 20, 2012 · Synced Sep 24, 2026, 1:57 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 9, 2024 · Synced Sep 24, 2026, 1:57 AM EDT
Completed Phase 3 Interventional Results available

Safety and Efficacy Of Drospirenone and Ethinyl Estradiol vs Placebo in the Treatment of Truncal Acne

NCT00722761
View directory record Official record
Conditions
Acne Vulgaris
Interventions
drospirenone and ethinyl estradiol, Placebo tablet
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 4, 2013 · Synced Sep 24, 2026, 1:57 AM EDT
Completed Phase 4 Interventional Results available

Low Dose OC Therapy in Women With Polycystic Ovary Syndrome (PCOS): Impact of BMI on Hyperandrogenism

NCT01360996
View directory record Official record
Conditions
Polycystic Ovary Syndrome
Interventions
3 mg DRSP/20 μg EE
Drug
Lead sponsor
Woman's
Other
Eligibility
16 Years to 35 Years · Female only
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
1
States / cities
Baton Rouge, Louisiana
Source: ClinicalTrials.gov public record
Updated Mar 30, 2017 · Synced Sep 24, 2026, 1:57 AM EDT
Completed No phase listed Observational Results available

Oral Contraceptive Hormone-free Interval Pituitary/ Ovarian Activity

NCT01953211
View directory record Official record
Conditions
Hypothalamic-pituitary-ovarian Axis, Gonadotropins, Ethinyl Estradiol, Contraceptive Efficacy
Interventions
combined oral contraceptives
Drug
Lead sponsor
University of Southern California
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
64 participants
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 25, 2019 · Synced Sep 24, 2026, 1:57 AM EDT