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Showing 1–24 of 529 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Contraception Clear all
Completed No phase listed Observational Accepts healthy volunteers

KYleena Satisfaction Study / Observational Study on User Satisfaction With the Levonorgestrel Intrauterine Delivery System Kyleena (LNG-IUS 12) in New Contraceptive Users and After Switching From Another Contraceptive Method

NCT03182140
View directory record Official record
Conditions
Contraception
Interventions
Kyleena
Drug
Lead sponsor
Bayer
Industry
Eligibility
Female only
Enrollment
1,134 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
12
States / cities
Lakewood, Colorado • Sarasota, Florida • Wellington, Florida + 9 more
Source: ClinicalTrials.gov public record
Updated Mar 28, 2021 · Synced Sep 6, 2026, 11:10 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Contraception and Menstrual Cycle Effect on Pharmacokinetics, Pharmacodynamics and Safety in Tenofovir Vaginal Gel Use

NCT01421368
View directory record Official record
Conditions
HIV Prevention
Interventions
Tenofovir 1% vaginal gel, Depo-medroxyprogesterone acetate (DMPA), Oral contraceptive: LNG 150 mcg and EE 30 mcg
Drug
Lead sponsor
CONRAD
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
2
States / cities
Pittsburgh, Pennsylvania • Norfolk, Virginia
Source: ClinicalTrials.gov public record
Updated Apr 9, 2015 · Synced Sep 6, 2026, 11:10 AM EDT
Completed Not applicable Interventional

A Study to Evaluate the Effects of Different Methods of Birth Control on the Drug Actions of Zidovudine (an Anti-HIV Drug) in HIV-Positive Women and to Compare Zidovudine Metabolism in Men and Women

NCT00000897
View directory record Official record
Conditions
HIV Infections
Interventions
Zidovudine
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 45 Years
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
6
States / cities
San Francisco, California • Jacksonville, Florida • Albany, New York + 3 more
Source: ClinicalTrials.gov public record
Updated Mar 1, 2011 · Synced Sep 6, 2026, 11:10 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Immediate vs. Delayed Postpartum Etonogestrel Implant

NCT01767285
View directory record Official record
Conditions
Continuation Rate of Contraceptive Implant
Interventions
Etonogestrel implant
Drug
Lead sponsor
Duke University
Other
Eligibility
12 Years to 40 Years · Female only
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 27, 2017 · Synced Sep 6, 2026, 11:10 AM EDT
Not listed Phase 4 Interventional Accepts healthy volunteers

Nexplanon Removal: Subcutaneous vs. Topical Lidocaine

NCT04467125
View directory record Official record
Conditions
Contraception
Interventions
Eutectic Lidocaine Prilocaine, Subcutaneous Lidocaine
Drug
Lead sponsor
Augusta University
Other
Eligibility
18 Years and older · Female only
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
1
States / cities
Augusta, Georgia
Source: ClinicalTrials.gov public record
Updated Jul 9, 2020 · Synced Sep 6, 2026, 11:10 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Continuation of Subcutaneous and Intramuscular Depot Medroxyprogesterone Acetate in Post-abortion Patients

NCT05505435
View directory record Official record
Conditions
Contraception
Interventions
Depot-Medroxyprogestereone Acetate
Drug
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older · Female only
Enrollment
263 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 11, 2026 · Synced Sep 6, 2026, 11:10 AM EDT
Recruiting Phase 4 Interventional

Levonorgestrel 52 mg IUD for Emergency Contraception and Same-Day Start

NCT05444582
View directory record Official record
Conditions
Contraception
Interventions
Levonorgestrel 52 MG Intrauterine System
Drug
Lead sponsor
University of Utah
Other
Eligibility
16 Years to 35 Years · Female only
Enrollment
1,404 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
8
States / cities
San Jose, California • Denver, Colorado • Chicago, Illinois + 5 more
Source: ClinicalTrials.gov public record
Updated Apr 15, 2026 · Synced Sep 6, 2026, 11:10 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Influence of Trust in the Health Care System on Postpartum Contraceptive Choice

NCT02213874
View directory record Official record
Conditions
Contraception Behavior, Contraception
Interventions
Questionnaire
Other
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years and older · Female only
Enrollment
208 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2015
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Apr 30, 2023 · Synced Sep 6, 2026, 11:10 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

The Effect of Protease Inhibitors on the Pharmacokinetics of Oral Norethindrone Contraception

NCT01667978
View directory record Official record
Conditions
Pregnancy, HIV, AIDS
Interventions
Norethindrone acetate
Drug
Lead sponsor
University of Southern California
Other
Eligibility
18 Years to 44 Years · Female only
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
2
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Aug 19, 2015 · Synced Sep 6, 2026, 11:10 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Acceptability of the NuvaRing Among Students

NCT00635570
View directory record Official record
Conditions
Birth Control Compliance
Interventions
Ortho Tri-cyclen Lo, NuvaRing
Drug · Device
Lead sponsor
University of Chicago
Other
Eligibility
18 Years and older · Female only
Enrollment
273 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
3
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 2, 2021 · Synced Sep 6, 2026, 11:10 AM EDT
Completed No phase listed Observational

A Complex Contraception Registry

NCT02219269
View directory record Official record
Conditions
Diabetes, Cardiovascular Disease, Epilepsy, Migraine, Neurological Disorders, Cancer, Bariatric Surgery Candidate, Organ or Tissue Transplant; Complications, Lupus Erythematosus, Systemic, Other Hematologic Conditions, Other Venous Embolism and Thrombosis
Interventions
Not listed
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
97 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
5
States / cities
Los Angeles, California • Orange, California • Sacramento, California + 2 more
Source: ClinicalTrials.gov public record
Updated Mar 13, 2018 · Synced Sep 6, 2026, 11:10 AM EDT
Terminated No phase listed Observational Accepts healthy volunteers Results available

Adiana Post-Approval Clinical Study (APACS)

NCT01177670
View directory record Official record
Conditions
Women Contraception
Interventions
Not listed
Lead sponsor
Hologic, Inc.
Industry
Eligibility
18 Years to 45 Years · Female only
Enrollment
169 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
9
States / cities
Elk Grove, California • Arlington Heights, Illinois • Columbia, Missouri + 6 more
Source: ClinicalTrials.gov public record
Updated Nov 19, 2012 · Synced Sep 6, 2026, 11:10 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Evaluation of Respecting the Circle of Life on Pregnancy Prevention Outcomes Among American Indian Adolescents

NCT02904629
View directory record Official record
Conditions
Sex, Unprotected Sex, Contraception, Alcohol Use, Drug Use, Pregnancy
Interventions
Respecting the Circle of Life (RCL), Control Program
Behavioral · Other
Lead sponsor
Johns Hopkins Bloomberg School of Public Health
Other
Eligibility
11 Years and older
Enrollment
1,072 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2022
U.S. locations
1
States / cities
Whiteriver, Arizona
Source: ClinicalTrials.gov public record
Updated Jul 18, 2022 · Synced Sep 6, 2026, 11:10 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Influences of Long-acting Reversible Contraceptives on Iron Status and Physiological Responses to Extreme Environments in Women

NCT06909695
View directory record Official record
Conditions
Contraception, Iron Deficiencies
Interventions
Blood volume and environmental testing
Other
Lead sponsor
United States Army Research Institute of Environmental Medicine
Federal
Eligibility
18 Years to 40 Years · Female only
Enrollment
33 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Natick, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 29, 2026 · Synced Sep 6, 2026, 11:10 AM EDT
Completed Not applicable Interventional

The Impact of Pack Supply on Birth Control Pill Continuation

NCT00677742
View directory record Official record
Conditions
Oral Contraception
Interventions
enhanced initial supply of oral contraception, conventional initial supply of oral contraception
Other
Lead sponsor
Columbia University
Other
Eligibility
Up to 35 Years · Female only
Enrollment
700 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2012
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 11, 2012 · Synced Sep 6, 2026, 11:10 AM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Birth Control to Improve Birth Spacing

NCT05240066
View directory record Official record
Conditions
Contraception, Contraception Behavior, Knowledge, Attitudes, Practice, Birth Spacing
Interventions
Not listed
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years and older
Enrollment
1,341 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 12, 2026 · Synced Sep 6, 2026, 11:10 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 22, 2014 · Synced Sep 6, 2026, 11:10 AM EDT
Completed Phase 4 Interventional Results available

BLIS - Breastfeeding Levonorgestrel IUD Study

NCT01990703
View directory record Official record
Conditions
Contraception
Interventions
Levonorgestrel IUD
Drug
Lead sponsor
University of Utah
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
285 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
2
States / cities
Albuquerque, New Mexico • Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jun 13, 2017 · Synced Sep 6, 2026, 11:10 AM EDT
Recruiting Early Phase 1 Interventional Accepts healthy volunteers

Endometrial Biopsy in Progestin Contraceptive Users

NCT05760144
View directory record Official record
Conditions
Contraception
Interventions
DMPA, Etonogestrel implant
Drug
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
52 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Mar 19, 2025 · Synced Sep 6, 2026, 11:10 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Home or Office Visit for the Insertion of Implantable Birth Control

NCT01816932
View directory record Official record
Conditions
Contraception
Interventions
Home Visit, Office visit
Procedure
Lead sponsor
Case Western Reserve University
Other
Eligibility
18 Years and older · Female only
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 27, 2022 · Synced Sep 6, 2026, 11:10 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Trial Assessing the Effectiveness of Text Messages in Improving Continuation of Birth Control

NCT01545609
View directory record Official record
Conditions
Initiation of a Birth Control Method
Interventions
Text messaging
Other
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
15 Years to 19 Years · Female only
Enrollment
220 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 23, 2013 · Synced Sep 6, 2026, 11:10 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Impact of Contraceptives on Cervico-Vaginal Mucosa

NCT04814927
View directory record Official record
Conditions
Mucosal Inflammation, Contraceptive; Complications, Intrauterine
Interventions
Copper IUD, Etonogestrel implant, Levonorgestrel IUS, DMPA Sub-cutaneous
Drug
Lead sponsor
Eastern Virginia Medical School
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
112 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Norfolk, Virginia
Source: ClinicalTrials.gov public record
Updated Aug 24, 2023 · Synced Sep 6, 2026, 11:10 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

PARIS or PAtch RIng Study: A Trial to Evaluate NuvaRing Versus OrthoEvra

NCT00269620
View directory record Official record
Conditions
Contraception
Interventions
ethinyl estradiol/etonogestrel vaginal ring, ethinyl estradiol/norelgestromin transdermal contraceptive
Drug
Lead sponsor
University of Pittsburgh
Other
Eligibility
Female only
Enrollment
500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2006
U.S. locations
10
States / cities
Los Angeles, California • Chicago, Illinois • Baltimore, Maryland + 7 more
Source: ClinicalTrials.gov public record
Updated Oct 20, 2008 · Synced Sep 6, 2026, 11:10 AM EDT
Recruiting Not applicable Interventional

"Vasectomy: Right for Me?" Decision Support Tool

NCT07451067
View directory record Official record
Conditions
Vasectomy, Contraception, Contraception Behavior, Reproductive Behavior
Interventions
"Vasectomy: Right for Me?" decision aid
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
21 Years to 55 Years · Male only
Enrollment
750 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
2
States / cities
San Francisco, California • Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 22, 2026 · Synced Sep 6, 2026, 11:10 AM EDT