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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Hormonal Contraception Clear all
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 14, 2026, 2:00 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Hormonal Birth Control and the Risk of Acquiring HIV

NCT00006324
View directory record Official record
Conditions
HIV Infections
Interventions
Ethinyl estradiol/levonorgestrel, Medroxyprogesterone acetate
Drug
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
16 Years to 35 Years · Female only
Enrollment
6,360 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1999 – 2002
U.S. locations
1
States / cities
Research Triangle Park, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 6, 2008 · Synced Sep 14, 2026, 2:00 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Contraceptive Efficacy Study of Ovaprene

NCT06127199
View directory record Official record
Conditions
Contraception
Interventions
Ovaprene
Device
Lead sponsor
Daré Bioscience, Inc.
Industry
Eligibility
18 Years to 40 Years · Female only
Enrollment
656 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
27
States / cities
Phoenix, Arizona • Scottsdale, Arizona • Tucson, Arizona + 24 more
Source: ClinicalTrials.gov public record
Updated May 10, 2026 · Synced Sep 14, 2026, 2:00 PM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Modulation of Mucosal and Systemic Immunity by Hormonal Contraceptives

NCT01750476
View directory record Official record
Conditions
Initiation of Oral Contraception (OC), Initiation of Depo-Provera (DMPA), Initiation of Mirena (LNG-IUD)
Interventions
Mirena, Oral contraception, Depo-Provera
Drug
Lead sponsor
Thomas Cherpes, DVM, MD
Other
Eligibility
15 Years to 25 Years · Female only
Enrollment
7 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 6, 2014 · Synced Sep 14, 2026, 2:00 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Phase II Study of Ovulation in Obese Women

NCT06306131
View directory record Official record
Conditions
Pregnancy Prevention
Interventions
Levonorgestrel 1.5 milligram, Meloxicam 15 milligram, calcium carbonate 750 milligram
Drug · Other
Lead sponsor
InnovaGyn, Inc.
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
4 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Raleigh, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 29, 2026 · Synced Sep 14, 2026, 2:00 PM EDT
Not listed Phase 2 Interventional Accepts healthy volunteers

Oral Versus Patch Hormonal Contraceptive Effects on Metabolism, Clotting, Inflammatory Factors and Vascular Reactivity

NCT00439972
View directory record Official record
Conditions
Contraception
Interventions
Ortho-Cyclen (R), Ortho Evra (R), extended use of Ortho Evra (R)
Drug
Lead sponsor
University of Washington
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2011
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Feb 13, 2011 · Synced Sep 14, 2026, 2:00 PM EDT
Not yet recruiting Not applicable Interventional

Energy Deficiency on Hormones in Contraceptive Users

NCT07651800
View directory record Official record
Conditions
Energy Deficiency Due to Short-term Fasting, Hormonal Contraception
Interventions
Energy Deficiency of approximately ~250 kcal/day
Behavioral
Lead sponsor
University of Southern California
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jun 15, 2026 · Synced Sep 14, 2026, 2:00 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

The Effect of a Non-hormonal Cox-2 Inhibitor (Celebrex) on Ovulation

NCT01129245
View directory record Official record
Conditions
Ovulation, Luteal Development
Interventions
Celebrex, Placebo
Drug
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Jun 17, 2019 · Synced Sep 14, 2026, 2:00 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Chronic Pain Risk Associated With Menstrual Period Pain

NCT02214550
View directory record Official record
Conditions
Cystitis, Interstitial, Dysmenorrhea, Migraine Disorders, Pelvic Pain, Endometriosis, Visceral Pain, Chronic Pain
Interventions
cyclic microgestin 1/20, continuous microgestin 1/20
Drug
Lead sponsor
Endeavor Health
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
353 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2021
U.S. locations
1
States / cities
Evanston, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 17, 2023 · Synced Sep 14, 2026, 2:00 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

A Multicenter, Non-Comparative Trial on the Contraceptive Efficacy, Safety, and Tolerability of LPRI-424, 13 Cycles

NCT03945513
View directory record Official record
Conditions
Contraception
Interventions
LPRI424 (dienogest/ethinylestradiol)
Drug
Lead sponsor
Insud Pharma
Industry
Eligibility
13 Years to 45 Years · Female only
Enrollment
1,034 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2023
U.S. locations
1
States / cities
Savannah, Georgia
Source: ClinicalTrials.gov public record
Updated Nov 13, 2023 · Synced Sep 14, 2026, 2:00 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Trial of Immediate Versus Delayed Initiation of Transdermal Hormonal Contraception After Therapeutic Abortion

NCT00235547
View directory record Official record
Conditions
Abortion
Interventions
timing of initiation of transdermal patch after an abortion
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
13 Years to 45 Years · Female only
Enrollment
298 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2012
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Aug 28, 2019 · Synced Sep 14, 2026, 2:00 PM EDT
Completed Not applicable Interventional

UCSF College Health Study on Contraceptive Training and Education at Community Colleges

NCT03519685
View directory record Official record
Conditions
Contraception
Interventions
Contraceptive Training and Education, Placebo Nutrition Education
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 25 Years · Female only
Enrollment
2,086 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jun 14, 2025 · Synced Sep 14, 2026, 2:00 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

Male Hormonal Contraceptive Development-ACY-5

NCT00161447
View directory record Official record
Conditions
Contraception
Interventions
Acyline, Testosterone Gel, Depo-Medroxyprogesterone
Drug
Lead sponsor
University of Washington
Other
Eligibility
18 Years to 55 Years · Male only
Enrollment
43 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2006
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Sep 18, 2008 · Synced Sep 14, 2026, 2:00 PM EDT
Terminated Phase 1 Interventional

Contraceptive Hormones and Women With Cystic Fibrosis

NCT02144246
View directory record Official record
Conditions
Cystic Fibrosis Exacerbations While on and Off Hormonal Contraception
Interventions
Non-hormonal period, Ortho-cyclen, Ethinyl estradiol/norgestimate, 0.035 mg/0.250 mg
Other · Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2014
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 7, 2016 · Synced Sep 14, 2026, 2:00 PM EDT
Completed No phase listed Observational

Postpartum Glucose Tolerance With Levonorgesterel IUD Use in Women With Recent Gestational Diabetes

NCT01022645
View directory record Official record
Conditions
Gestational Diabetes, Glucose Intolerance, Type 2 Diabetes, Intrauterine Contraception
Interventions
Mirena (Levonorgestrel IUD), Paragard (Copper IUD ) or Tubal Ligation
Device
Lead sponsor
Northwestern University
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Nov 19, 2014 · Synced Sep 14, 2026, 2:00 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 14, 2026, 2:00 PM 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 14, 2026, 2:00 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Combined Hormonal Contraceptive Use in High Risk Women: A Longitudinal Study

NCT00361400
View directory record Official record
Conditions
Pregnancy
Interventions
Not listed
Lead sponsor
University of California, San Francisco
Other
Eligibility
15 Years to 24 Years · Female only
Enrollment
1,387 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2008
U.S. locations
5
States / cities
Hayward, California • Oakland, California • Richmond, California + 2 more
Source: ClinicalTrials.gov public record
Updated Aug 1, 2013 · Synced Sep 14, 2026, 2:00 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Depo-Provera: Bone Mineral Density and Total Body Calcium in Adolescent DP150CI Users and Non-Hormonal Contraception

NCT00139685
View directory record Official record
Conditions
Contraception, Bone Density
Interventions
Depo-Provera Contraceptive Injection - DP150CI
Drug
Lead sponsor
Pfizer
Industry
Eligibility
12 Years to 18 Years · Female only
Enrollment
350 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1998 – 2007
U.S. locations
12
States / cities
Los Angeles, California • Palo Alto, California • Torrance, California + 9 more
Source: ClinicalTrials.gov public record
Updated Sep 24, 2008 · Synced Sep 14, 2026, 2:00 PM EDT
Completed Phase 4 Interventional

Does Vaginal Delivery of Combined Hormonal Contraception Affect the Risk of Metabolic Syndrome in Overweight/Obese Women With PCOS

NCT04257500
View directory record Official record
Conditions
Polycystic Ovary Syndrome
Interventions
Etonogestrel/ethinyl estradiol vaginal ring
Drug
Lead sponsor
Andrea Roe, MD, MPH
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 16, 2025 · Synced Sep 14, 2026, 2:00 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Nexplanon and Combined Oral Contraceptive (COC) Combined Use Study

NCT02852265
View directory record Official record
Conditions
Contraception
Interventions
Etonogestrel contraceptive implant
Drug
Lead sponsor
University of California, Davis
Other
Eligibility
16 Years to 35 Years · Female only
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Dec 27, 2018 · Synced Sep 14, 2026, 2:00 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 14, 2026, 2:00 PM EDT
Completed Not applicable Interventional

Counseling on the Interaction of Hormonal Contraceptives and Antiepileptics

NCT02485756
View directory record Official record
Conditions
Epilepsy
Interventions
Educational handout
Other
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Jun 6, 2019 · Synced Sep 14, 2026, 2:00 PM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

Adaptions and Resiliency to Multi-Stressor OpeRations

NCT06455969
View directory record Official record
Conditions
Musculoskeletal Injury, Hypogonadism, Hormonal Contraception
Interventions
Goserelin 3.6 MG, Multi-Stressor Training, Testosterone gel (AndroGel 5g), Testosterone gel (AndroGel 1.25g)
Drug · Other
Lead sponsor
Bradley Nindl
Other
Eligibility
18 Years to 40 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 17, 2026 · Synced Sep 14, 2026, 2:00 PM EDT