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ClinicalTrials.gov public records Last synced Oct 11, 2026, 11:08 AM EDT

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Showing 49–72 of 140 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Combined oral contraceptive Clear all
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 11, 2026, 11:08 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Desogestrel-containing COCP Pharmacokinetic Validation Study

NCT05002738
View directory record Official record
Conditions
Contraception
Interventions
Desogestrel and Ethinyl Estradiol Tablets
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated May 30, 2025 · Synced Oct 11, 2026, 11:08 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

HSG and Tubal Patency Study

NCT02146248
View directory record Official record
Conditions
Tubal Patency
Interventions
combined oral contraceptive, DepoProvera
Drug
Lead sponsor
Jeffrey Jensen
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
11 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Mar 22, 2017 · Synced Oct 11, 2026, 11:08 AM 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 11, 2026, 11:08 AM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

A Study to Assess Potential Drug-Drug Interactions of E2086 in Healthy Participants

NCT07766369
View directory record Official record
Conditions
Healthy Volunteers
Interventions
E2086
Drug
Lead sponsor
Eisai Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
93 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Oct 6, 2026 · Synced Oct 11, 2026, 11:08 AM 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 24, 2026 · Synced Oct 11, 2026, 11:08 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 20, 2019 · Synced Oct 11, 2026, 11:08 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

AZD6140 Oral Contraceptive Interaction Study

NCT00685906
View directory record Official record
Conditions
Healthy
Interventions
AZD6140, Levonorgestrel and Ethinyl Estradiol (Nordette®)
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 45 Years · Female only
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Dec 2, 2010 · Synced Oct 11, 2026, 11:08 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Nexplanon Use in Women Primarily Choosing a Combined Oral Contraceptive

NCT04423055
View directory record Official record
Conditions
Contraception
Interventions
Etonogestrel contraceptive implant
Drug
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years and older · Female only
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
3
States / cities
Sacramento, California • Denver, Colorado • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 22, 2024 · Synced Oct 11, 2026, 11:08 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 6, 2018 · Synced Oct 11, 2026, 11:08 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

US Cycle Control and Blood Pressure Study

NCT00920985
View directory record Official record
Conditions
Contraception
Interventions
Gestodene/EE (FC Patch Low, BAY86-5016), Oral contraceptive (equivalent to the active treatment tablets of Levlite), 21-day blister SH D00593A
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years to 45 Years · Female only
Enrollment
346 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
28
States / cities
Chandler, Arizona • Glendale, Arizona • Phoenix, Arizona + 25 more
Source: ClinicalTrials.gov public record
Updated Oct 9, 2015 · Synced Oct 11, 2026, 11:08 AM 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 14, 2011 · Synced Oct 11, 2026, 11:08 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Effects of Oral vs. Non-oral Contraceptives on the GH/IGF-1 Axis

NCT02367833
View directory record Official record
Conditions
Bone; Disorder, Development and Growth
Interventions
Combined Oral Contraceptive, Transdermal Contraceptive, Contraceptive Vaginal Ring
Drug
Lead sponsor
Penn State University
Other
Eligibility
18 Years to 30 Years · Female only
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
1
States / cities
University Park, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 9, 2020 · Synced Oct 11, 2026, 11:08 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 7, 2020 · Synced Oct 11, 2026, 11:08 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 26, 2019 · Synced Oct 11, 2026, 11:08 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Efficacy and Safety of Two Flexible Extended Regimens of BAY86-5300 (SH T00186D) in Comparison With the Conventional Regimen of YAZ

NCT00567164
View directory record Official record
Conditions
Contraception, Ovulation Inhibition, Contraceptives, Oral
Interventions
EE20/DRSP (BAY86-5300), EE20/DRSP (YAZ, BAY86-5300)
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years to 45 Years · Female only
Enrollment
1,887 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2009
U.S. locations
85
States / cities
Montgomery, Alabama • Chandler, Arizona • Mesa, Arizona + 74 more
Source: ClinicalTrials.gov public record
Updated Mar 12, 2014 · Synced Oct 11, 2026, 11:08 AM 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 11, 2026, 11:08 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Drug-Drug Interaction Study of S-217622 With Combined Oral Contraceptives in Healthy Adult Female Participants

NCT06775730
View directory record Official record
Conditions
Healthy Adult Female Participants
Interventions
Ensitrelvir
Drug
Lead sponsor
Shionogi
Industry
Eligibility
18 Years to 35 Years · Female only
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Glendale, California
Source: ClinicalTrials.gov public record
Updated May 4, 2025 · Synced Oct 11, 2026, 11:08 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effects of VX-407 on the Pharmacokinetics of Oral Contraceptives in Healthy Participants

NCT07074327
View directory record Official record
Conditions
Autosomal Dominant Polycystic Kidney Disease (ADPKD)
Interventions
VX-407, LNG/EE, NGM/EE, NET/EE, DRSP/EE
Drug
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
18 Years to 50 Years · Female only
Enrollment
74 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Mar 30, 2026 · Synced Oct 11, 2026, 11:08 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 5, 2019 · Synced Oct 11, 2026, 11:08 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 5, 2014 · Synced Oct 11, 2026, 11:08 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Factorial Trial Testing Guided Thinking Tasks to Optimize a Physical Activity Intervention

NCT05235360
View directory record Official record
Conditions
Physical Inactivity
Interventions
Episodic future thinking, Positive affect imagery, Action planning, High dose, Recent thinking, Neutral imagery, Low dose
Behavioral
Lead sponsor
Southern Methodist University
Other
Eligibility
18 Years to 64 Years
Enrollment
184 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Aug 20, 2026 · Synced Oct 11, 2026, 11:08 AM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

Contraceptive Hormone and Reward Measurement (CHARM Study)

NCT05058872
View directory record Official record
Conditions
Oral Hormonal Contraceptive Use, Neural Activity, Mood, Hedonic Function
Interventions
Levonorgestrel/ethinyl estradiol, Placebo
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years and older · Female only
Enrollment
144 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2027
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Nov 4, 2024 · Synced Oct 11, 2026, 11:08 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Drug Interaction Study of Danicopan

NCT04709094
View directory record Official record
Conditions
Healthy
Interventions
Danicopan, Warfarin, Bupropion, Ethinyl Estradiol/Norethindrone
Drug
Lead sponsor
Alexion Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
52 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Jan 14, 2021 · Synced Oct 11, 2026, 11:08 AM EDT