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Showing 1–24 of 53 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Unplanned Pregnancy Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Influence of Peer Mentoring on Adolescent Contraceptive Decision Making

NCT02157285
View directory record Official record
Conditions
Peer Counseling, LARC Desire
Interventions
Peer Mentor Counseling
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
13 Years to 21 Years · Female only
Enrollment
110 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 5, 2014 · Synced Jul 22, 2026, 2:02 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Pharmacists Expand Access to Reproductive heaLthcare

NCT03830567
View directory record Official record
Conditions
Contraception
Interventions
Pharmacist prescription, Clinician prescription
Other
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years to 51 Years · Female only
Enrollment
471 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Apr 3, 2024 · Synced Jul 22, 2026, 2:02 AM EDT
Enrolling by invitation Not applicable Interventional Accepts healthy volunteers

Evaluating the Impact of CHOICE-AYA on Contraceptive Use, Continuation and Satisfaction

NCT05022134
View directory record Official record
Conditions
Contraception Behavior, Sexual Behavior, Reproductive Behavior
Interventions
CHOICE-AYA
Behavioral
Lead sponsor
Children's Mercy Hospital Kansas City
Other
Eligibility
14 Years to 21 Years · Female only
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2027
U.S. locations
1
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Feb 16, 2026 · Synced Jul 22, 2026, 2:02 AM EDT
Completed Phase 1 Interventional

Improving Effective Contraceptive Use Among Opioid-maintained Women

NCT01425060
View directory record Official record
Conditions
Contraceptive Usage, Opioid Dependence
Interventions
Contraceptive management program, Usual care
Behavioral · Other
Lead sponsor
University of Vermont
Other
Eligibility
18 Years to 44 Years · Female only
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Mar 16, 2015 · Synced Jul 22, 2026, 2:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

miPlan: A Trial of miPlan Intervention vs. Standard of Care

NCT02396602
View directory record Official record
Conditions
Unintended Pregnancy
Interventions
miPlan intervention
Behavioral
Lead sponsor
University of Chicago
Other
Eligibility
15 Years to 29 Years · Female only
Enrollment
225 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 24, 2016 · Synced Jul 22, 2026, 2:02 AM EDT
Completed Not applicable Interventional

The Young Woman's Reach Project: Trial of an Intervention to Impact Contraceptive Behavior, Unintended Pregnancy, and Sexually Transmitted Infections (STIs) Among Adolescent Females

NCT00230880
View directory record Official record
Conditions
Contraceptive Behavior, Sexually Transmitted Diseases
Interventions
follow-up phone counseling
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
14 Years to 18 Years · Female only
Enrollment
800 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2009
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Dec 4, 2012 · Synced Jul 22, 2026, 2:02 AM EDT
Completed Not applicable Interventional Results available

MyNewOptions: An Online Study of Reproductive Life Planning and Contraceptive Action Planning

NCT02100124
View directory record Official record
Conditions
Contraceptive Use, Unintended Pregnancy
Interventions
Reproductive Life Planning (RLP), Contraceptive Action Planning, Contraception information
Behavioral
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
987 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 10, 2018 · Synced Jul 22, 2026, 2:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Improving the Reproductive Health of Families

NCT03858803
View directory record Official record
Conditions
Reproductive Health
Interventions
Families Matter 2, Living as a Safer Teen
Behavioral
Lead sponsor
Portland State University
Other
Eligibility
13 Years to 80 Years
Enrollment
945 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2024
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Aug 16, 2025 · Synced Jul 22, 2026, 2:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Healthy Relationships Program for Vulnerable Youth

NCT03736876
View directory record Official record
Conditions
Pregnancy, Unplanned, Sexually Transmitted Diseases
Interventions
About Us
Behavioral
Lead sponsor
ETR Associates
Other
Eligibility
14 Years to 18 Years
Enrollment
550 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
3
States / cities
Oakland, California • San Diego, California • Scotts Valley, California
Source: ClinicalTrials.gov public record
Updated Mar 23, 2022 · Synced Jul 22, 2026, 2:02 AM EDT
Completed Phase 4 Interventional

Nurse Family Partnership (NFP) Contraceptive Study

NCT00928538
View directory record Official record
Conditions
Pregnancy, Effective Contraceptive Use, Family Planning
Interventions
Enhanced NFP Care
Other
Lead sponsor
Oregon Health and Science University
Other
Eligibility
15 Years to 45 Years · Female only
Enrollment
344 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2015
U.S. locations
3
States / cities
Olympia, Washington • Seattle, Washington • Vancouver, Washington
Source: ClinicalTrials.gov public record
Updated Mar 29, 2016 · Synced Jul 22, 2026, 2:02 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

The Contraceptive Choice Project

NCT01986439
View directory record Official record
Conditions
Unintended Pregnancy, Teen Births, Abortion, Contraception
Interventions
Not listed
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
14 Years to 45 Years · Female only
Enrollment
9,256 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2016
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 13, 2015 · Synced Jul 22, 2026, 2:02 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Maintaining Intrauterine Devices (IUDs) in Teens (MINT): A Randomization Trial

NCT00653159
View directory record Official record
Conditions
Contraception
Interventions
Levonorgestrel-releasing intrauterine device (LNG-IUS), Copper T380A intrauterine device (CuT380A)
Device
Lead sponsor
University of Chicago
Other
Eligibility
14 Years to 18 Years · Female only
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
2
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 22, 2023 · Synced Jul 22, 2026, 2:02 AM EDT
Completed Not applicable Interventional Results available

Improving Effective Contraceptive Use Among Opioid-maintained Women: Stage II

NCT02411357
View directory record Official record
Conditions
Contraceptive Usage, Opioid Dependence
Interventions
Treatment as usual, WHO contraception protocol, Incentives
Behavioral
Lead sponsor
University of Vermont
Other
Eligibility
18 Years to 44 Years · Female only
Enrollment
138 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
1
States / cities
Burlington, Vermont
Source: ClinicalTrials.gov public record
Updated Feb 9, 2023 · Synced Jul 22, 2026, 2:02 AM EDT
Completed Not applicable Interventional

A Pilot Study Using Text Messaging to Communicate With Adolescent Females in the Pediatric Emergency Department

NCT02093884
View directory record Official record
Conditions
Pregnancy
Interventions
Text Messaging Intervention, Standard Referral
Other
Lead sponsor
Columbia University
Other
Eligibility
14 Years to 19 Years · Female only
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Manhattan, New York
Source: ClinicalTrials.gov public record
Updated Jan 19, 2017 · Synced Jul 22, 2026, 2:02 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Preconception Reproductive Knowledge Promotion (PREKNOP)

NCT01849900
View directory record Official record
Conditions
Pregnancy
Interventions
Knowing your body, Healthy Lifestyle
Other · Behavioral
Lead sponsor
Calvin College
Other
Eligibility
18 Years to 44 Years · Female only
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2017
U.S. locations
1
States / cities
Grand Rapids, Michigan
Source: ClinicalTrials.gov public record
Updated Apr 10, 2017 · Synced Jul 22, 2026, 2:02 AM EDT
Completed Phase 4 Interventional Results available

A Pilot Study of Early Postpartum Intrauterine Contraception

NCT00997932
View directory record Official record
Conditions
Unplanned Pregnancy
Interventions
Levonorgestrel-Releasing Intrauterine Contraceptive System (LNG-IUS), 52 Mg, 5 Year Duration
Drug
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
21 Years to 45 Years · Female only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2012
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 28, 2017 · Synced Jul 22, 2026, 2:02 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Emergency Contraception (ECP): Reducing Unintended Pregnancies

NCT00067509
View directory record Official record
Conditions
Contraception, Pregnancy
Interventions
emergency contraception (estrogen/progesterone)
Drug
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
15 Years to 39 Years · Female only
Enrollment
1,100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001 – 2004
U.S. locations
2
States / cities
Philadelphia, Pennsylvania • Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 23, 2005 · Synced Jul 22, 2026, 2:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Optimizing a Multi-Modal Intervention to Reduce Health-Risking Sexual Behaviors: Component Selection

NCT04661566
View directory record Official record
Conditions
Sexually Transmitted Infections, Pregnancy, Unplanned, Military Personnel
Interventions
Basic Education ("Education"), Narrative Videos ("Narratives"), Skills Building Videos ("Skills"), Interactive Scenarios ("Scenarios"), Future Life Planning Tool ("Future"), Epidemiological Risk Scenario ("Risk")
Behavioral
Lead sponsor
Uniformed Services University of the Health Sciences
Federal
Eligibility
17 Years and older
Enrollment
549 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated May 22, 2025 · Synced Jul 22, 2026, 2:02 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Optimizing the Floreciendo Sexual and Reproductive Health Workshop for Latina Teens and Female Caregivers: A Pilot

NCT06223165
View directory record Official record
Conditions
Sexual Risk Behavior, Sexually Transmitted Infections, Unplanned Pregnancy
Interventions
Floreciendo (Foundations, Condoms & Contraception, Family Strengthening, and Gender & Relationships), Floreciendo (Foundations, Condoms & Contraception, and Family Strengthening), Floreciendo (Foundations, Condoms & Contraception, Gender & Relationships), Floreciendo (Foundations, Family Strengthening, and Gender & Relationships), Floreciendo (Foundations and Condoms & Contraception), Floreciendo (Foundations and Family Strengthening), Floreciendo (Foundations and Gender & Partner Relationships), Floreciendo (Foundations)
Behavioral
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
14 Years and older
Enrollment
184 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
4
States / cities
Chicago, Illinois • Cicero, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 26, 2025 · Synced Jul 22, 2026, 2:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Levonorgestrel Intrauterine System For Emergency Contraception

NCT01539720
View directory record Official record
Conditions
Pregnancy, Unplanned, Pregnancy; Accident
Interventions
Ulipristal acetate, levonorgestrel IUS
Drug · Device
Lead sponsor
Planned Parenthood of the St. Louis Region and Southwest Missouri
Other
Eligibility
14 Years to 45 Years · Female only
Enrollment
274 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2018
U.S. locations
3
States / cities
Atlanta, Georgia • Indianapolis, Indiana • St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Feb 19, 2024 · Synced Jul 22, 2026, 2:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Usefulness of Home Pregnancy Testing

NCT00390754
View directory record Official record
Conditions
Fertility
Interventions
Education for pregnancy planning
Behavioral
Lead sponsor
Michigan State University
Other
Eligibility
18 Years to 34 Years · Female only
Enrollment
198 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
1
States / cities
East Lansing, Michigan
Source: ClinicalTrials.gov public record
Updated Jul 28, 2008 · Synced Jul 22, 2026, 2:02 AM EDT
Completed No phase listed Observational

Relationship Between Postpartum Mood Disorders and Delivery Experience

NCT03004872
View directory record Official record
Conditions
Postpartum Period, Depression, Stress Disorders, Post-Traumatic
Interventions
Not listed
Lead sponsor
University of Michigan
Other
Eligibility
18 Years and older · Female only
Enrollment
600 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Feb 11, 2019 · Synced Jul 22, 2026, 2:02 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers Results available

Sexual Health Empowerment for Women's Health

NCT03984695
View directory record Official record
Conditions
Cervical Cancer, Breast Cancer, Contraceptive Usage, Sexually Transmitted Diseases
Interventions
SHE-WOMEN
Behavioral
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years and older · Female only
Enrollment
279 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2026
U.S. locations
1
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Jan 27, 2026 · Synced Jul 22, 2026, 2:02 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Michigan Contraceptive Access, Research, and Evaluation Study: Phase 1

NCT03673007
View directory record Official record
Conditions
Pregnancy
Interventions
Gift card to be used for contraceptives that is valued at 50% of cost of name-brand IUD (August 26, 2018-March 3, 2019), Gift card to be used for contraceptives that is valued at 100% of cost of name-brand IUD (March 4, 2019-March 31, 2023)
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
4,633 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2028
U.S. locations
9
States / cities
Ann Arbor, Michigan • Detroit, Michigan • Ferndale, Michigan + 6 more
Source: ClinicalTrials.gov public record
Updated Jun 1, 2026 · Synced Jul 22, 2026, 2:02 AM EDT