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ClinicalTrials.gov public records Last synced Sep 28, 2026, 10:41 AM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Oral Contraceptive Pills Clear all
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 26, 2023 · Synced Sep 28, 2026, 10:41 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Non-intrusive Detection of Temporary Neurologic Impairment by Opioids

NCT05489601
View directory record Official record
Conditions
Neurologic Impairment by Opioids
Interventions
Oxycodone
Drug
Lead sponsor
Zxerex Corporation
Industry
Eligibility
21 Years to 59 Years
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Scottsdale, Arizona
Source: ClinicalTrials.gov public record
Updated Aug 4, 2022 · Synced Sep 28, 2026, 10:41 AM 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 28, 2026, 10:41 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 21, 2017 · Synced Sep 28, 2026, 10:41 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Oral Contraceptive Pills Compared to Vaginal Rings

NCT00357526
View directory record Official record
Conditions
Pregnancy
Interventions
OCPs, vaginal ring
Drug · Device
Lead sponsor
University of California, San Francisco
Other
Eligibility
15 Years to 21 Years · Female only
Enrollment
130 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2004
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Apr 22, 2007 · Synced Sep 28, 2026, 10:41 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Does Concomitant Use of Combined Oral Hormonal Steroids Stop Bleeding in Women Using Etonogestrel Implants (Implanon/Nexplanon®)?: A Randomized Controlled Study

NCT01968135
View directory record Official record
Conditions
Uterine Hemorrhage, Contraception
Interventions
Combined Oral Contraceptive Pill, Placebo Sugar Pill
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 44 Years · Female only
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated May 4, 2016 · Synced Sep 28, 2026, 10:41 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 11, 2014 · Synced Sep 28, 2026, 10:41 AM EDT
Withdrawn Phase 4 Interventional

Changes in Oral Contraceptive Hormones After Gastric Bypass Surgery

NCT01941134
View directory record Official record
Conditions
Bariatric Surgery Candidate, Contraception
Interventions
ethinyl estradiol-levonorgestrel
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 40 Years · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 20, 2018 · Synced Sep 28, 2026, 10:41 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study of the Effects of GSK189075 on PK Profiles of an Oral Contraceptive Pill When Given to Healthy Female Volunteers

NCT00504816
View directory record Official record
Conditions
Type 2 Diabetes Mellitus, Diabetes Mellitus, Type 2
Interventions
GSK189075, Brevicon
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 45 Years · Female only
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
Miramar, Florida
Source: ClinicalTrials.gov public record
Updated Jun 3, 2012 · Synced Sep 28, 2026, 10:41 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 20, 2013 · Synced Sep 28, 2026, 10:41 AM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

A Research Study Looking Into How NNC0662-0419 Works With Birth Control Pills and Emptying of the Stomach in Women Not Able to Become Pregnant With Excess Body Weight

NCT07525791
View directory record Official record
Conditions
Overweight, Obesity
Interventions
NNC0662-0419, Oral contraceptive, Acetaminophen
Drug
Lead sponsor
Novo Nordisk A/S
Industry
Eligibility
18 Years to 64 Years · Female only
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Apr 23, 2026 · Synced Sep 28, 2026, 10:41 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Study of Leptin for the Treatment of Hypothalamic Amenorrhea

NCT00130117
View directory record Official record
Conditions
Amenorrhea
Interventions
r-metHuLeptin, Oral Contraceptive Pills (OCPs), Placebo
Drug · Other
Lead sponsor
Beth Israel Deaconess Medical Center
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2016
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 16, 2017 · Synced Sep 28, 2026, 10:41 AM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Post Operative Continuous Active Combination Sex Steroids for the Prevention of Recurrent Endometrioma Formation

NCT00999479
View directory record Official record
Conditions
Endometrioma
Interventions
Norethindrone acetate and ethinyl estradiol tablets, USP, ferrous fumarate (placebo) tablets
Drug
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years to 35 Years · Female only
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Dec 9, 2013 · Synced Sep 28, 2026, 10:41 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 28, 2026, 10:41 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 28, 2026, 10:41 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 29, 2025 · Synced Sep 28, 2026, 10:41 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Premature Discontinuation of Contraceptive Implants

NCT04828824
View directory record Official record
Conditions
Contraception Behavior
Interventions
Ethinyl Estradiol / Norgestimate Oral Tablet
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
14 Years to 23 Years · Female only
Enrollment
600 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Apr 22, 2026 · Synced Sep 28, 2026, 10:41 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

A Multicenter Study to Evaluate the Safety of Seasonique, an Oral Contraceptive.

NCT00196352
View directory record Official record
Conditions
Contraception
Interventions
Levonorgestrel/EE 0.15/0.03 mg and EE 0.01 mg tablets
Drug
Lead sponsor
Duramed Research
Industry
Eligibility
18 Years to 40 Years · Female only
Enrollment
320 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2006
U.S. locations
11
States / cities
Tucson, Arizona • Washington D.C., District of Columbia • Lincoln, Nebraska + 8 more
Source: ClinicalTrials.gov public record
Updated Apr 7, 2014 · Synced Sep 28, 2026, 10:41 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Vitamin B6 Supplementation and Mood States in College Women Taking Oral Contraceptives

NCT04070391
View directory record Official record
Conditions
Depression
Interventions
vitamin B6, control
Dietary Supplement · Other
Lead sponsor
Arizona State University
Other
Eligibility
18 Years to 25 Years · Female only
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Oct 21, 2019 · Synced Sep 28, 2026, 10:41 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 28, 2026, 10:41 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Txt Now 2 Decrease Pregnancies L8r: A Study to Evaluate the Effect of Daily Text Message Reminders on Pill Continuation

NCT00677703
View directory record Official record
Conditions
Contraceptives, Oral
Interventions
Daily Text Messages
Other
Lead sponsor
Columbia University
Other
Eligibility
Up to 24 Years · Female only
Enrollment
968 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2012
U.S. locations
1
States / cities
Brooklyn, New York
Source: ClinicalTrials.gov public record
Updated Nov 18, 2012 · Synced Sep 28, 2026, 10:41 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Improving Adherence With Oral Contraceptives Using Daily Text Messaging Reminders

NCT00733707
View directory record Official record
Conditions
Oral Contraceptive Pill Adherence
Interventions
Text messaging reminders
Behavioral
Lead sponsor
Planned Parenthood League of Massachusetts
Other
Eligibility
14 Years and older · Female only
Enrollment
82 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 17, 2016 · Synced Sep 28, 2026, 10:41 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 22, 2026 · Synced Sep 28, 2026, 10:41 AM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

The Over The Counter Pill National Study

NCT05988983
View directory record Official record
Conditions
Contraception, Contraception Behavior, Contraceptive Usage, Health Care Utilization
Interventions
Availability of OTC contraceptive pill
Other
Lead sponsor
Oregon Health and Science University
Other
Eligibility
12 Years to 51 Years · Female only
Enrollment
1,026 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated May 12, 2025 · Synced Sep 28, 2026, 10:41 AM EDT