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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Contraception Behavior Clear all
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 8, 2026, 11:52 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Plan A Birth Control: Randomized Controlled Trial of a Mobile Health Application for Contraception Information

NCT02234271
View directory record Official record
Conditions
Mobile Applications, Contraception, Contraception Behavior
Interventions
Mobile Health Application, Health Educator Counseling
Other
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Sep 8, 2014 · Synced Sep 8, 2026, 11:52 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Keep Contraceptive Arm Long Acting-iMplant (CALM) and Carry On

NCT04725643
View directory record Official record
Conditions
Contraception, Contraceptive Usage, Family Planning
Interventions
Track bleeding patterns before and after implant
Device
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
55 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Jan 22, 2024 · Synced Sep 8, 2026, 11:52 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Immediate Versus Delayed Insertion of Implanon in Postpartum Adolescents

NCT03585504
View directory record Official record
Conditions
Contraceptive Usage
Interventions
Etonogestrel contraceptive implant
Drug
Lead sponsor
Medical University of South Carolina
Other
Eligibility
15 Years to 21 Years · Female only
Enrollment
81 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Oct 3, 2018 · Synced Sep 8, 2026, 11:52 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Factors Predicting Ineffective Contraception Use

NCT03500978
View directory record Official record
Conditions
Contraception Behavior
Interventions
Peer CBT Intervention
Behavioral
Lead sponsor
Temple University
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
133 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 25, 2020 · Synced Sep 8, 2026, 11:52 AM EDT
Completed Early Phase 1 Interventional

Inpatient Adolescent Contraception

NCT04423068
View directory record Official record
Conditions
Pregnancy Related, Contraception, Contraceptive Usage, Contraception Behavior, Pregnancy
Interventions
SexHealth II, Contraceptive
Behavioral · Drug
Lead sponsor
Children's Mercy Hospital Kansas City
Other
Eligibility
14 Years to 21 Years · Female only
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 4, 2023 · Synced Sep 8, 2026, 11:52 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 8, 2026, 11:52 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Contraception Initiation Feasibility in the Pediatric ED

NCT03559634
View directory record Official record
Conditions
Contraception, Contraception Behavior
Interventions
Intervention Group, Control Group
Diagnostic Test · Other
Lead sponsor
Washington University School of Medicine
Other
Eligibility
15 Years to 21 Years · Female only
Enrollment
55 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2023
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Mar 26, 2024 · Synced Sep 8, 2026, 11:52 AM 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 8, 2026, 11:52 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Nitrous Oxide for Pain Management of Intrauterine Device (IUD) Insertion

NCT02391714
View directory record Official record
Conditions
Contraception
Interventions
IUD insertion, Povidone-Iodine, Chlorhexidine, Oxygen, Nitrous oxide
Procedure · Drug · Other
Lead sponsor
University of New Mexico
Other
Eligibility
12 Years and older · Female only
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated Feb 2, 2016 · Synced Sep 8, 2026, 11:52 AM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Patient Centered Postpartum Contraception App

NCT03402217
View directory record Official record
Conditions
Contraceptive Usage
Interventions
Patient Centered Postpartum Contraception App
Behavioral
Lead sponsor
University of Chicago
Other
Eligibility
15 Years to 25 Years · Female only
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 2, 2024 · Synced Sep 8, 2026, 11:52 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

CARRII Native Intervention Optimization Trial

NCT07547696
View directory record Official record
Conditions
Fetal Alcohol Spectrum Disorders, Pregnancy, Alcohol-Related Disorders, Drinking, Alcohol, Contraception Behavior, Alcohol Exposed Pregnancy, Sexual Behavior
Interventions
CARRII Native Cores
Other
Lead sponsor
University of Virginia
Other
Eligibility
18 Years to 44 Years · Female only
Enrollment
512 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Jun 22, 2026 · Synced Sep 8, 2026, 11:52 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Navigating New Motherhood 2

NCT03922334
View directory record Official record
Conditions
Postpartum Health, Breastfeeding, Contraception, Preventive Care / Anticipatory Guidance, Retention in Care
Interventions
Patient Navigation Program
Behavioral
Lead sponsor
Northwestern University
Other
Eligibility
16 Years to 50 Years · Female only
Enrollment
405 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2024
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jan 28, 2026 · Synced Sep 8, 2026, 11:52 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Efficacy and Safety Study of Norethindrone Acetate Transdermal Delivery System in Contraception

NCT01140217
View directory record Official record
Conditions
Contraceptive Usage
Interventions
Norethindrone Acetate
Drug
Lead sponsor
Watson Pharmaceuticals
Industry
Eligibility
18 Years to 45 Years · Female only
Enrollment
1,659 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
53
States / cities
Birmingham, Alabama • Mobile, Alabama • Montgomery, Alabama + 50 more
Source: ClinicalTrials.gov public record
Updated Sep 18, 2013 · Synced Sep 8, 2026, 11:52 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Study of Use of Ella®, an Emergency Contraceptive, Under Simulated OTC Conditions

NCT03208985
View directory record Official record
Conditions
Emergency Contraception
Interventions
Use Phase (Ulipristal Acetate, 30 mg)
Drug
Lead sponsor
HRA Pharma
Industry
Eligibility
Female only
Enrollment
1,270 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
34
States / cities
Rancho Cucamonga, California • Boulder, Colorado • Denver, Colorado + 27 more
Source: ClinicalTrials.gov public record
Updated Dec 1, 2022 · Synced Sep 8, 2026, 11:52 AM EDT
Not listed Not applicable Interventional

Tipping Point: Using Social Network Theory to Accelerate Scale and Impact

NCT05777473
View directory record Official record
Conditions
Contraception
Interventions
Household Visits, Small Groups, Adopt-a-Friend
Behavioral
Lead sponsor
University of California, San Diego
Other
Eligibility
15 Years and older
Enrollment
3,825 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated May 22, 2024 · Synced Sep 8, 2026, 11:52 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 8, 2026, 11:52 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Immediate Postpartum Contraceptive Implant Placement and Breastfeeding Success in Women at Risk for Low Milk Supply: A Non-inferiority Trial

NCT02866279
View directory record Official record
Conditions
Contraception, Breastfeeding, Postpartum Contraception
Interventions
Etonogestrel Contraceptive Implant
Device
Lead sponsor
Montefiore Medical Center
Other
Eligibility
17 Years to 45 Years · Female only
Enrollment
155 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2021
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Oct 31, 2022 · Synced Sep 8, 2026, 11:52 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 8, 2026, 11:52 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of Early Versus Traditional Follow-Up on Breastfeeding Rates at 6 Months

NCT02221895
View directory record Official record
Conditions
Pregnancy, Breastfeeding, Contraception, Cervical Cancer, Postpartum Depression
Interventions
Postpartum follow up appointment 2-3 weeks after delivery, Postpartum follow up 6-8wk after delivery
Other
Lead sponsor
Madigan Army Medical Center
Federal
Eligibility
18 Years to 50 Years · Female only
Enrollment
344 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2017
U.S. locations
1
States / cities
Tacoma, Washington
Source: ClinicalTrials.gov public record
Updated Sep 20, 2020 · Synced Sep 8, 2026, 11:52 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Timing of Postpartum Depot Medroxyprogesterone Acetate Administration on Breastfeeding, Contraceptive Continuation, and Depression

NCT01463202
View directory record Official record
Conditions
Contraception, Postpartum Depression, Lactation
Interventions
Depot medroxyprogesterone acetate
Drug
Lead sponsor
Beatrice Chen
Other
Eligibility
18 Years and older · Female only
Enrollment
184 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2017
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 30, 2018 · Synced Sep 8, 2026, 11:52 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Patient-Centered Reproductive Decision Support Tool for Women Veterans

NCT04584294
View directory record Official record
Conditions
Contraception, Contraception Behavior, Prepregnancy Health, Reproductive Health
Interventions
MyPath Web-Based Informational and Decision Support Tool
Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years to 44 Years · Female only
Enrollment
465 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
12
States / cities
San Diego, California • Aurora, Colorado • Orlando, Florida + 9 more
Source: ClinicalTrials.gov public record
Updated Nov 5, 2025 · Synced Sep 8, 2026, 11:52 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Clinical Use of a Contraceptive Decision Aid and Patient Outcomes

NCT05973071
View directory record Official record
Conditions
Contraceptive Usage
Interventions
Tuune Supplemented Contraceptive Visit, Traditional Contraceptive Visit
Behavioral
Lead sponsor
Texas Christian University
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Fort Worth, Texas
Source: ClinicalTrials.gov public record
Updated Aug 1, 2023 · Synced Sep 8, 2026, 11:52 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Phase I Study to Evaluate the PK and PD of a Single Injection of Levonorgestrel Butanoate for Female Contraception

NCT02173808
View directory record Official record
Conditions
Contraceptive Usage
Interventions
levonorgestrel butanoate
Biological
Lead sponsor
Premier Research
Other
Eligibility
18 Years to 44 Years · Female only
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Feb 21, 2016 · Synced Sep 8, 2026, 11:52 AM EDT