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ClinicalTrials.gov public records Last synced Oct 23, 2026, 7:21 AM EDT

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Showing 1–24 of 291 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: oral contraceptives Clear all
Completed Not applicable Interventional

IVF Clinical Trial of Two Different Treatment Protocols.

NCT00799929
View directory record Official record
Conditions
Infertility
Interventions
in vitro fertilization (IVF/ICSI)
Other
Lead sponsor
New Hope Fertility Center
Other
Eligibility
18 Years to 38 Years · Female only
Enrollment
564 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2014
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 24, 2015 · Synced Oct 23, 2026, 7:21 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

A Multicenter Study to Evaluate the Effects of a 91-Day Extended Cycle Oral Contraceptive on Hemostatic Parameters in Healthy Women

NCT01252186
View directory record Official record
Conditions
Hemostasis, Oral Contraceptive
Interventions
91-day Levonorgestrel Oral Contraceptive, 28-day Levonorgestrel Oral Contraceptive, 28-day Desogestrel Oral Contraceptive
Drug
Lead sponsor
Teva Women's Health
Industry
Eligibility
18 Years to 40 Years · Female only
Enrollment
265 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
21
States / cities
San Diego, California • Washington D.C., District of Columbia • Miami, Florida + 16 more
Source: ClinicalTrials.gov public record
Updated Mar 13, 2015 · Synced Oct 23, 2026, 7:21 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Efficacy and Safety Study of an Oral Contraceptive in Healthy Females

NCT00206583
View directory record Official record
Conditions
Contraception
Interventions
EV/DNG (Qlaira, BAY86-5027, SH T00658ID)
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years to 35 Years · Female only
Enrollment
499 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2007
U.S. locations
20
States / cities
Los Angeles, California • Palo Alto, California • San Diego, California + 16 more
Source: ClinicalTrials.gov public record
Updated Oct 1, 2014 · Synced Oct 23, 2026, 7:21 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Evaluate the Drug Interaction Between Povorcitinib and the Oral Contraceptive Levonorgestrel/Ethinyl Estradiol in Healthy Adult Females

NCT06380205
View directory record Official record
Conditions
Healthy Participants
Interventions
Povorcitinib, Levonorgestrel/Ethinyl estradiol
Drug
Lead sponsor
Incyte Corporation
Industry
Eligibility
18 Years to 60 Years · Female only
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Jul 3, 2024 · Synced Oct 23, 2026, 7:21 AM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

A Comparison of Continuation Rates for Three Hormonal Contraceptive Methods

NCT00253019
View directory record Official record
Conditions
Contraception
Interventions
Not listed
Lead sponsor
Emory University
Other
Eligibility
13 Years to 45 Years · Female only
Enrollment
321 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2005
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Aug 21, 2013 · Synced Oct 23, 2026, 7:21 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 22, 2017 · Synced Oct 23, 2026, 7:21 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 26, 2025 · Synced Oct 23, 2026, 7:21 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 2, 2025 · Synced Oct 23, 2026, 7:21 AM EDT
Completed Phase 1 Interventional

A Study of ABBV-295 Subcutaneous Injections to Assess Pharmacokinetics and Adverse Events in Healthy Adult Women Participants With Overweight or Obesity Taking Oral Contraceptives

NCT07414784
View directory record Official record
Conditions
Healthy Volunteer
Interventions
ABBV-295, Levonorgestrel/Ethinyl Estradiol
Drug
Lead sponsor
AbbVie
Industry
Eligibility
18 Years to 65 Years · Female only
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
2
States / cities
Anaheim, California • Grayslake, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 31, 2026 · Synced Oct 23, 2026, 7:21 AM EDT
Not listed Phase 2 Interventional Accepts healthy volunteers

Antagonism of Opioid-Induced Respiratory Depression by CX1739 With Preservation of Opioid Analgesia

NCT02735629
View directory record Official record
Conditions
Opiate Induced Respiratory Depression
Interventions
CX1739 - 300 mg, CX1739 - 600 mg, CX1739 - 900 mg, Placebo
Drug
Lead sponsor
RespireRx
Industry
Eligibility
18 Years to 50 Years · Male only
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 28, 2016 · Synced Oct 23, 2026, 7:21 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

The Effect of Topiramate on Etonogestrel Concentrations in Contraceptive Implant Users

NCT03335163
View directory record Official record
Conditions
Migraine, Migraine;Menstrual, Contraception
Interventions
Topiramate
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jul 13, 2022 · Synced Oct 23, 2026, 7:21 AM EDT
Withdrawn Early Phase 1 Interventional Accepts healthy volunteers

Relative Desirability of Metformin vs. Birth Control Pill in Treating PCOS in Women of Later Reproductive Age

NCT03905941
View directory record Official record
Conditions
Polycystic Ovary Syndrome
Interventions
Metformin, Oral combined hormonal contraceptives
Drug
Lead sponsor
University of Virginia
Other
Eligibility
40 Years to 49 Years · Female only
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Feb 23, 2026 · Synced Oct 23, 2026, 7:21 AM EDT
Completed Phase 3 Interventional

Safety of Estrogens in Lupus: Birth Control Pills

NCT00000420
View directory record Official record
Conditions
Systemic Lupus Erythematosus
Interventions
Ortho-Novum 777
Drug
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 39 Years · Female only
Enrollment
350 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1997 – 2003
U.S. locations
15
States / cities
Los Angeles, California • Chicago, Illinois • Shreveport, Louisiana + 11 more
Source: ClinicalTrials.gov public record
Updated May 3, 2013 · Synced Oct 23, 2026, 7:21 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Quantification of Immune Cells in Women Using Contraception (CHIC II)

NCT01873170
View directory record Official record
Conditions
HIV, Immune Cells (Mucosal and Systemic), Contraception
Interventions
levonorgestrel exposure, DMPA exposure, etonogestrel exposure, IUD insertion, subdermal contraceptive implant insertion
Drug · Device
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years to 34 Years · Female only
Enrollment
326 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2020
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 27, 2021 · Synced Oct 23, 2026, 7:21 AM 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 23, 2026, 7:21 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 17, 2026 · Synced Oct 23, 2026, 7:21 AM EDT
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 29, 2026 · Synced Oct 23, 2026, 7:21 AM EDT
Suspended Phase 1 Interventional Accepts healthy volunteers

Determine the Effects of C-administration of AZD7325 and an Oral Contraceptive in Healthy Female Subjects

NCT00901290
View directory record Official record
Conditions
Pharmacokinetics
Interventions
monophasic oral contraceptive, AZD7325
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 45 Years · Female only
Enrollment
56 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Dec 10, 2010 · Synced Oct 23, 2026, 7:21 AM EDT
Completed Not applicable Interventional Results available

Tranexamic Acid (TA) vs Combined Oral Contraceptive (COCP) Pilot Study

NCT01428713
View directory record Official record
Conditions
Menorrhagia
Interventions
Oral tranexamic acid, Oral Contraceptive Pills
Drug
Lead sponsor
Baylor College of Medicine
Other
Eligibility
Up to 21 Years · Female only
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Aug 10, 2016 · Synced Oct 23, 2026, 7:21 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 23, 2014 · Synced Oct 23, 2026, 7:21 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 24, 2014 · Synced Oct 23, 2026, 7:21 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

A Study of Continuous Oral Contraceptives and Doxycycline

NCT00480532
View directory record Official record
Conditions
Contraceptives, Oral
Interventions
Lybrel, Doxycycline, Oracea, Placebo, Doxycycline 100bid x5 days at the time of bleeding, Subantimicrobial doxycycline daily, placebo daily
Drug
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
131 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2011
U.S. locations
2
States / cities
Honolulu, Hawaii • Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Oct 22, 2014 · Synced Oct 23, 2026, 7:21 AM 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 23, 2026, 7:21 AM 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 23, 2026, 7:21 AM EDT