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ClinicalTrials.gov public records Last synced Oct 7, 2026, 9:28 PM EDT

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Showing 97–120 of 140 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: combined oral contraceptives Clear all
Terminated Phase 2 Interventional Results available

A Study to Examine the Safety and Efficacy of Drospirenone and Ethinyl Estradiol (YAZ) Versus Placebo In HS

NCT00722800
View directory record Official record
Conditions
Hidradenitis Suppurativa
Interventions
drospirenone and ethinyl estradiol (YAZ), Placebo
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
14 Years to 45 Years · Female only
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 10, 2014 · Synced Oct 7, 2026, 9:28 PM 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 18, 2021 · Synced Oct 7, 2026, 9:28 PM 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 26, 2013 · Synced Oct 7, 2026, 9:28 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

A Multicenter Study to Evaluate the Effects of a 91-day Oral Contraceptive on Bone Mineral Density in Adolescent Females

NCT00924560
View directory record Official record
Conditions
Bone Mineral Density
Interventions
91-day Levonorgestrel Oral Contraceptive, 28-day Levonorgestrel Oral Contraceptive
Drug
Lead sponsor
Duramed Research
Industry
Eligibility
12 Years to 18 Years · Female only
Enrollment
1,361 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
46
States / cities
Phoenix, Arizona • Tucson, Arizona • North Little Rock, Arkansas + 39 more
Source: ClinicalTrials.gov public record
Updated Oct 22, 2014 · Synced Oct 7, 2026, 9:28 PM 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 6, 2018 · Synced Oct 7, 2026, 9:28 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Influences of Long-acting Reversible Contraceptives on Iron Status and Physiological Responses to Extreme Environments in Women

NCT06909695
View directory record Official record
Conditions
Contraception, Iron Deficiencies
Interventions
Blood volume and environmental testing
Other
Lead sponsor
United States Army Research Institute of Environmental Medicine
Federal
Eligibility
18 Years to 40 Years · Female only
Enrollment
33 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Natick, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 30, 2026 · Synced Oct 7, 2026, 9:28 PM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers

A Study to Investigate the Interaction Between JNJ-64155806 and Ethinylestradiol/Drospirenone in Healthy Females

NCT03126097
View directory record Official record
Conditions
Healthy
Interventions
JNJ-64155806 150 mg, Ethinylestradiol/drospirenone 0.02 mg/3 mg, COCP Placebo
Drug
Lead sponsor
Janssen Research & Development, LLC
Industry
Eligibility
18 Years to 45 Years · Female only
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Sep 1, 2017 · Synced Oct 7, 2026, 9:28 PM 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 27, 2023 · Synced Oct 7, 2026, 9:28 PM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

A Study to Investigate the Effect of AZD6234, AZD9550, and a Combination of AZD9550 and AZD6234 on Pharmacokinetics of Combined Oral Contraceptive Ethinyl Estradiol/Levonorgestrel in Healthy Female Participants Living With Overweight or Obesity

NCT07013643
View directory record Official record
Conditions
Healthy Participants
Interventions
AZD6234, Ethinyl estradiol/Levonorgestrel (EE/LEVO), Acetaminophen (APAP), AZD9550
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
35 Years to 75 Years · Female only
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
2
States / cities
Glendale, California • Brooklyn, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 17, 2026 · Synced Oct 7, 2026, 9:28 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Assessment of Contraceptive Safety and Effectiveness in Cystic Fibrosis

NCT04568980
View directory record Official record
Conditions
Cystic Fibrosis, Contraception
Interventions
Not listed
Lead sponsor
University of Washington
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
562 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
10
States / cities
Birmingham, Alabama • San Diego, California • Denver, Colorado + 7 more
Source: ClinicalTrials.gov public record
Updated May 22, 2023 · Synced Oct 7, 2026, 9:28 PM EDT
Completed Not applicable Interventional Results available

The Oral Contraceptive Pill for Premenstrual Worsening of Depression

NCT00633360
View directory record Official record
Conditions
Premenstrual Syndrome, Depression
Interventions
Drospirenone and ethinyl estradiol, Placebo
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 20, 2017 · Synced Oct 7, 2026, 9:28 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Oral Contraceptive Efficacy and Body Weight

NCT00662454
View directory record Official record
Conditions
Contraception, Body Weight
Interventions
ethinyl estradiol / levonorgestrel
Drug
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Sep 16, 2020 · Synced Oct 7, 2026, 9:28 PM 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 4, 2020 · Synced Oct 7, 2026, 9:28 PM 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 9, 2026 · Synced Oct 7, 2026, 9:28 PM 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 Oct 7, 2026, 9:28 PM 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 14, 2017 · Synced Oct 7, 2026, 9:28 PM EDT
Terminated Phase 2 Interventional Results available

A Safety & Efficacy Study of BGS649 in Women With Refractory Endometriosis

NCT01116440
View directory record Official record
Conditions
Pelvic Pain Associated With Refractory Endometriosis
Interventions
BGS649, Placebo
Drug
Lead sponsor
Mereo BioPharma
Industry
Eligibility
18 Years to 49 Years · Female only
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
42
States / cities
Mobile, Alabama • Phoenix, Arizona • Jonesboro, Arkansas + 36 more
Source: ClinicalTrials.gov public record
Updated Nov 23, 2020 · Synced Oct 7, 2026, 9:28 PM 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 11, 2023 · Synced Oct 7, 2026, 9:28 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Evaluate Safety and Efficacy of an Oral Contraceptive (OC) Preparation Versus Placebo for 6 Treatment Cycles in Women With Moderate Acne

NCT00656981
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
541 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2004
U.S. locations
22
States / cities
Mobile, Alabama • Kingman, Arizona • Encino, California + 18 more
Source: ClinicalTrials.gov public record
Updated Dec 30, 2014 · Synced Oct 7, 2026, 9:28 PM EDT
Recruiting Phase 2 Interventional

Combined Oral Contraceptive Pill and Resistance Starch

NCT06852365
View directory record Official record
Conditions
Metabolic Syndrome, Polycystic Ovary Syndrome
Interventions
wheat dextrin, Oral Contraceptives, Low-Dose, Maltodextrin
Dietary Supplement · Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 1, 2026 · Synced Oct 7, 2026, 9:28 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Continuous Versus Cyclical OCP Use in PCOS

NCT03819140
View directory record Official record
Conditions
Polycystic Ovary Syndrome
Interventions
Yasmin
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
15 Years to 40 Years · Female only
Enrollment
51 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Nov 14, 2025 · Synced Oct 7, 2026, 9:28 PM 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 Oct 7, 2026, 9:28 PM 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 24, 2023 · Synced Oct 7, 2026, 9:28 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

How DHEA Supplements Affect Coagulation in Women Using Birth Control Pills

NCT03418363
View directory record Official record
Conditions
Contraceptive Usage, Coagulation
Interventions
DHEA Oral Capsule, Placebo Oral Capsule
Dietary Supplement · Other
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years to 44 Years · Female only
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Jan 23, 2020 · Synced Oct 7, 2026, 9:28 PM EDT