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Showing 1–24 of 290 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Birth control pills 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, 5:57 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Contraception and Menstrual Cycle Effect on Pharmacokinetics, Pharmacodynamics and Safety in Tenofovir Vaginal Gel Use

NCT01421368
View directory record Official record
Conditions
HIV Prevention
Interventions
Tenofovir 1% vaginal gel, Depo-medroxyprogesterone acetate (DMPA), Oral contraceptive: LNG 150 mcg and EE 30 mcg
Drug
Lead sponsor
CONRAD
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
2
States / cities
Pittsburgh, Pennsylvania • Norfolk, Virginia
Source: ClinicalTrials.gov public record
Updated Apr 9, 2015 · Synced Sep 6, 2026, 5:57 PM 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 6, 2026, 5:57 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

The Effect of Protease Inhibitors on the Pharmacokinetics of Oral Norethindrone Contraception

NCT01667978
View directory record Official record
Conditions
Pregnancy, HIV, AIDS
Interventions
Norethindrone acetate
Drug
Lead sponsor
University of Southern California
Other
Eligibility
18 Years to 44 Years · Female only
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
2
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Aug 19, 2015 · Synced Sep 6, 2026, 5:57 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Acceptability of the NuvaRing Among Students

NCT00635570
View directory record Official record
Conditions
Birth Control Compliance
Interventions
Ortho Tri-cyclen Lo, NuvaRing
Drug · Device
Lead sponsor
University of Chicago
Other
Eligibility
18 Years and older · Female only
Enrollment
273 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
3
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 2, 2021 · Synced Sep 6, 2026, 5:57 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 3, 2020 · Synced Sep 6, 2026, 5:57 PM 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, 5:57 PM 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, 5:57 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 29, 2026 · Synced Sep 6, 2026, 5:57 PM EDT
Completed Not applicable Interventional

The Impact of Pack Supply on Birth Control Pill Continuation

NCT00677742
View directory record Official record
Conditions
Oral Contraception
Interventions
enhanced initial supply of oral contraception, conventional initial supply of oral contraception
Other
Lead sponsor
Columbia University
Other
Eligibility
Up to 35 Years · Female only
Enrollment
700 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2012
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 11, 2012 · Synced Sep 6, 2026, 5:57 PM 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, 5:57 PM EDT
Completed Early Phase 1 Interventional

Why do Oral Contraceptives Prevent Ovarian Cancer?

NCT02155777
View directory record Official record
Conditions
Ovarian Cancer Risk, Risk-reducing Surgery, Fallopian Tube Fimbriae, Ovarian Cortical Inclusion Cysts
Interventions
OrthoNovum 1/35
Drug
Lead sponsor
University of Michigan
Other
Eligibility
30 Years to 45 Years · Female only
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
2
States / cities
Los Angeles, California • Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jun 24, 2020 · Synced Sep 6, 2026, 5:57 PM 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, 5:57 PM 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, 5:57 PM 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, 5:57 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Improving Adolescent Adherence to Hormonal Contraception

NCT00584038
View directory record Official record
Conditions
Contraception
Interventions
educational instruction and phone follow-up, educational instruction in clinic
Behavioral
Lead sponsor
The University of Texas Medical Branch, Galveston
Other
Eligibility
16 Years to 24 Years · Female only
Enrollment
1,155 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2012
U.S. locations
1
States / cities
Galveston, Texas
Source: ClinicalTrials.gov public record
Updated May 23, 2013 · Synced Sep 6, 2026, 5:57 PM 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, 5:57 PM 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, 5:57 PM 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, 5:57 PM 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, 5:57 PM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Post-Prandial Liver Glucose Metabolism in PCOS

NCT03041129
View directory record Official record
Conditions
Polycystic Ovarian Syndrome, Obesity, Hepatic Steatosis
Interventions
oral glucose tolerance test, MRI of liver
Diagnostic Test
Lead sponsor
University of Colorado, Denver
Other
Eligibility
12 Years to 21 Years · Female only
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Apr 16, 2024 · Synced Sep 6, 2026, 5:57 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

ORAL T-8 Oral Testosterone for Male Hormonal Contraception

NCT01167829
View directory record Official record
Conditions
Healthy
Interventions
Oral Testosterone, Acyline
Drug
Lead sponsor
University of Washington
Other
Eligibility
18 Years to 55 Years · Male only
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Sep 5, 2013 · Synced Sep 6, 2026, 5:57 PM 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, 5:57 PM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers Results available

LARC Forward Contraceptive Counseling at MHCC

NCT02735551
View directory record Official record
Conditions
Contraception
Interventions
Long Acting Reversible Contraception (LARC), Referral for Long Acting Reversible Contraception (LARC), Prescription for Short-Acting Hormonal Contraception
Drug · Other
Lead sponsor
Oregon Health and Science University
Other
Eligibility
17 Years to 30 Years · Female only
Enrollment
3 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Gresham, Oregon
Source: ClinicalTrials.gov public record
Updated Nov 11, 2019 · Synced Sep 6, 2026, 5:57 PM EDT