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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Birth control pills Clear all
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Effect of Norgestrel 75 mcg on Cervical Mucus and Ovarian Activity During Perfect Use, After One Delayed Intake and After a Missed Pill

NCT03585712
View directory record Official record
Conditions
Contraception
Interventions
Norgestrel 0.075 mg
Drug
Lead sponsor
HRA Pharma
Industry
Eligibility
18 Years to 35 Years · Female only
Enrollment
52 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
2
States / cities
Sacramento, California • Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Jun 2, 2021 · Synced Sep 24, 2026, 2:14 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Smoking, Sex Hormones, and Pregnancy

NCT01811225
View directory record Official record
Conditions
Nicotine Dependence, Contraception
Interventions
Low-dose Progesterone, High-dose Progesterone
Drug
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
95 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2017
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Nov 12, 2020 · Synced Sep 24, 2026, 2:14 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Do Oral Contraceptives Protect Against ACL Injuries in Female Athletes

NCT04899778
View directory record Official record
Conditions
Ligament Injury
Interventions
Oral Contraceptive Pill, norethindrn a-e estradiol-iron
Drug
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
18 Years and older · Female only
Enrollment
73 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Sep 8, 2026 · Synced Sep 24, 2026, 2:14 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

The Effect of BMS-986195 Combined With an Oral Contraceptive (Ethinyl Estradiol/Norethindrone) in Healthy Female Patients

NCT03262740
View directory record Official record
Conditions
Rheumatoid Arthritis
Interventions
BMS-986195, 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
58 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
2
States / cities
South Miami, Florida • Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Mar 19, 2020 · Synced Sep 24, 2026, 2:14 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Study to Evaluate the Safety and Efficacy of Two Contraceptive Vaginal Rings Delivering a Daily Dose of 1500 or 2500 μg of CDB-2914

NCT00791297
View directory record Official record
Conditions
Contraception
Interventions
CDB-2914
Drug
Lead sponsor
Population Council
Other
Eligibility
21 Years to 40 Years · Female only
Enrollment
55 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2014
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Aug 14, 2017 · Synced Sep 24, 2026, 2:14 PM 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 9, 2016 · Synced Sep 24, 2026, 2:14 PM EDT
Not listed Phase 4 Interventional Accepts healthy volunteers

Prevention of Menstrual Migraines: Effects of Estrogen Add-back During the HFI in Patients Using Continuous Oral Contraceptives.

NCT01251263
View directory record Official record
Conditions
Menstrual Migraines, Menstrual Bleeding, Menstrual Spotting
Interventions
Estradiol or Placebo
Drug
Lead sponsor
Scott and White Hospital & Clinic
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
Temple, Texas
Source: ClinicalTrials.gov public record
Updated Nov 30, 2010 · Synced Sep 24, 2026, 2:14 PM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers Results available

Combination Metformin and Oral Contraception for Polycystic Ovary Syndrome (PCOS)

NCT00682890
View directory record Official record
Conditions
Polycystic Ovary Syndrome, PCOS, Insulin Sensitivity
Interventions
placebo, metformin
Drug
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2010
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Aug 19, 2014 · Synced Sep 24, 2026, 2:14 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

STUDY TO EVALUATE THE EFFECT OF PF-06882961 ON SINGLE DOSE ATORVASTATIN, MEDAZOLAM AND ORALCONTRACEPTIVE PHARMACOKINETICS IN HEALTHY ADULT PARTICIPANTS

NCT05093205
View directory record Official record
Conditions
Healthy Adults
Interventions
PF-06882961, Atorvastatin, Midazolam, Levonorgestrel & Ethinyl Estradiol
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 65 Years
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Anaheim, California
Source: ClinicalTrials.gov public record
Updated Aug 18, 2024 · Synced Sep 24, 2026, 2:14 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

E4 FREEDOM (Female Response Concerning Efficacy and Safety of Estetrol/Drospirenone as Oral Contraceptive in a Multicentric Study) - United States/Canada Study

NCT02817841
View directory record Official record
Conditions
Contraception
Interventions
15 mg E4/3 mg DRSP
Drug
Lead sponsor
Estetra
Industry
Eligibility
16 Years to 50 Years · Female only
Enrollment
2,148 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 9, 2020 · Synced Sep 24, 2026, 2:14 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 17, 2021 · Synced Sep 24, 2026, 2:14 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

The Effect of BMS-986142 on the Pharmacokinetics of a Combined Oral Contraceptive (OC) Containing Ethinyl Estradiol (EE) and Norethindrone Acetate (NET) in Healthy Female Subjects

NCT02832180
View directory record Official record
Conditions
Arthritis
Interventions
OC containing EE and NET, BMS-986142
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years to 40 Years · Female only
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
2
States / cities
Miami, Florida • Evansville, Indiana
Source: ClinicalTrials.gov public record
Updated Dec 25, 2016 · Synced Sep 24, 2026, 2:14 PM EDT
Completed Phase 2 Interventional Results available

Alii Supplement Study

NCT07271316
View directory record Official record
Conditions
Nutrient Deficiency, Happiness, Digestive Health, Vulnerability to Disease, Mood Swings, Energy
Interventions
Alii Supplement
Dietary Supplement
Lead sponsor
Texas Christian University
Other
Eligibility
18 Years to 25 Years · Female only
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Fort Worth, Texas
Source: ClinicalTrials.gov public record
Updated Jul 12, 2026 · Synced Sep 24, 2026, 2:14 PM EDT
Terminated Not applicable Interventional Results available

Standard Pain Control or Intrathecal Therapy in Controlling Pain in Patients With Locally Advanced, Unresectable, or Metastatic Pancreatic Cancer

NCT00660348
View directory record Official record
Conditions
Pain, Pancreatic Cancer
Interventions
morphine sulfate, Medtronic intrathecal pump
Drug · Device
Lead sponsor
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Other
Eligibility
18 Years and older
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 7, 2014 · Synced Sep 24, 2026, 2:14 PM 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 24, 2026, 2:14 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Trial of Immediate Versus Delayed Initiation of Oral Contraceptive Pills After Abortion

NCT00235534
View directory record Official record
Conditions
Abortion
Interventions
Immediate initiation of OCPs, Delayed initiation of OCPs
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
13 Years to 45 Years · Female only
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2008
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Nov 18, 2012 · Synced Sep 24, 2026, 2:14 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Drug-Drug Interaction Study of MK 8527 With a Combined Oral Contraceptive (LNG/EE)

NCT06783192
View directory record Official record
Conditions
Human Immunodeficiency Virus (HIV), HIV Pre-Exposure Prophylaxis
Interventions
MK-8527, LNG/EE
Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years to 70 Years · Female only
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
South Miami, Florida
Source: ClinicalTrials.gov public record
Updated Jan 19, 2025 · Synced Sep 24, 2026, 2:14 PM EDT
Completed No phase listed Observational Results available

A 6-month Observational Study on Combined Oral Contraceptives and Body Weight in Pre-Menopausal Women With Overweight or Obesity

NCT05061472
View directory record Official record
Conditions
Contraceptive Usage, Overweight or Obesity, Body Weight Changes, Appetitive Behavior, Eating Behavior
Interventions
Not listed
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
20 participants
Timeline
2022 – 2023
U.S. locations
2
States / cities
Aurora, Colorado • Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Dec 10, 2024 · Synced Sep 24, 2026, 2:14 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Study to Assess the Effect of BMS-790052 on the Pharmacokinetics of Ortho Tri-Cyclen® in Healthy Female Subjects

NCT00983957
View directory record Official record
Conditions
Chronic Hepatitis C
Interventions
BMS-790052, Ortho Tri-Cyclen®
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years to 45 Years · Female only
Enrollment
47 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
2
States / cities
Tempe, Arizona • Austin, Texas
Source: ClinicalTrials.gov public record
Updated Oct 15, 2015 · Synced Sep 24, 2026, 2:14 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Assessing Fertility Potential in Female Cancer Survivors

NCT01143844
View directory record Official record
Conditions
Effects of Chemotherapy
Interventions
Not listed
Lead sponsor
University of Pennsylvania
Other
Eligibility
11 Years to 50 Years · Female only
Enrollment
391 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2020
U.S. locations
2
States / cities
Philadelphia, Pennsylvania • Radnor, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 12, 2021 · Synced Sep 24, 2026, 2:14 PM EDT
Recruiting Early Phase 1 Interventional Accepts healthy volunteers

RESTOR: PK/PD mTORi Inhibition in Older Adults

NCT06658093
View directory record Official record
Conditions
Aging
Interventions
Rapamycin, Everolimus, Placebo
Drug · Other
Lead sponsor
The University of Texas Health Science Center at San Antonio
Other
Eligibility
65 Years to 90 Years
Enrollment
194 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated May 31, 2026 · Synced Sep 24, 2026, 2:14 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Evaluation of the Effect of Suzetrigine (SUZ) on the Pharmacokinetics of Oral Contraceptives in Healthy Female Participants

NCT06820307
View directory record Official record
Conditions
Pain
Interventions
Suzetrigine, DRSP/EE, NGM/EE
Drug
Lead sponsor
Vertex Pharmaceuticals Incorporated
Industry
Eligibility
18 Years to 50 Years · Female only
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated May 28, 2025 · Synced Sep 24, 2026, 2:14 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Modulation of Immunity by Hormonal Contraceptives

NCT02011711
View directory record Official record
Conditions
Contraception
Interventions
Not listed
Lead sponsor
Thomas L. Cherpes
Other
Eligibility
15 Years to 25 Years · Female only
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2016
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated Jan 15, 2017 · Synced Sep 24, 2026, 2:14 PM EDT
Completed Phase 2 Interventional Results available

Elagolix for Fertility Enhancement Clinical Trial

NCT04039204
View directory record Official record
Conditions
Endometriosis, Unexplained Infertility
Interventions
Elagolix, Ortho Cyclen
Drug
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years to 42 Years · Female only
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 25, 2024 · Synced Sep 24, 2026, 2:14 PM EDT