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

A Multicenter Study to Evaluate the Effects of a 91-Day Extended Cycle Oral Contraceptive on Hemostatic Parameters in Healthy Women

NCT01252186
View directory record Official record
Conditions
Hemostasis, Oral Contraceptive
Interventions
91-day Levonorgestrel Oral Contraceptive, 28-day Levonorgestrel Oral Contraceptive, 28-day Desogestrel Oral Contraceptive
Drug
Lead sponsor
Teva Women's Health
Industry
Eligibility
18 Years to 40 Years · Female only
Enrollment
265 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
21
States / cities
San Diego, California • Washington D.C., District of Columbia • Miami, Florida + 16 more
Source: ClinicalTrials.gov public record
Updated Mar 12, 2015 · Synced Sep 20, 2026, 6:16 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Study to Evaluate the Efficacy and Safety of DR-103 for the Prevention of Pregnancy

NCT00996580
View directory record Official record
Conditions
Pregnancy Prevention
Interventions
DR-103
Drug
Lead sponsor
Teva Women's Health
Industry
Eligibility
18 Years to 40 Years · Female only
Enrollment
3,597 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
94
States / cities
Montgomery, Alabama • Phoenix, Arizona • Tucson, Arizona + 83 more
Source: ClinicalTrials.gov public record
Updated Jun 23, 2013 · Synced Sep 20, 2026, 6:16 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Determine the Effects of PF-04965842 on the Pharmacokinetics of Oral Contraceptive Steroids in Healthy Female Subjects

NCT03662516
View directory record Official record
Conditions
Healthy Females
Interventions
PF-04965842, Ethinyl estradiol (EE) and levonorgestrel (LN)
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 55 Years · Female only
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 22, 2020 · Synced Sep 20, 2026, 6:16 AM EDT
Completed Phase 1 Interventional

A Study of ABBV-295 Subcutaneous Injections to Assess Pharmacokinetics and Adverse Events in Healthy Adult Women Participants With Overweight or Obesity Taking Oral Contraceptives

NCT07414784
View directory record Official record
Conditions
Healthy Volunteer
Interventions
ABBV-295, Levonorgestrel/Ethinyl Estradiol
Drug
Lead sponsor
AbbVie
Industry
Eligibility
18 Years to 65 Years · Female only
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
2
States / cities
Anaheim, California • Grayslake, Illinois
Source: ClinicalTrials.gov public record
Updated Aug 30, 2026 · Synced Sep 20, 2026, 6:16 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

EC PK in Women With Normal and Obese BMI

NCT02689804
View directory record Official record
Conditions
Contraception
Interventions
LNG-EC, UPA-EC
Drug
Lead sponsor
Columbia University
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 6, 2017 · Synced Sep 20, 2026, 6:16 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 Sep 20, 2026, 6:16 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Tamoxifen to Reduce Unscheduled Bleeding in New Users of the Levonorgestrel-releasing Intrauterine System (LNG-IUS)

NCT02824224
View directory record Official record
Conditions
Menorrhagia, Metrorrhagia, Medicated Intrauterine Devices
Interventions
Tamoxifen, Placebo (for Tamoxifen)
Drug
Lead sponsor
Oregon Health and Science University
Other
Eligibility
15 Years to 45 Years · Female only
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Jun 3, 2019 · Synced Sep 20, 2026, 6:16 AM EDT
Active, not recruiting Phase 2 Interventional

Levonorgestrel-Releasing Intrauterine System With or Without Everolimus in Treating Patients With Atypical Hyperplasia or Stage IA Grade 1 Endometrial Cancer

NCT02397083
View directory record Official record
Conditions
Atypical Endometrial Hyperplasia, FIGO Grade 1 Endometrial Endometrioid Adenocarcinoma, FIGO Grade 2 Endometrial Endometrioid Adenocarcinoma
Interventions
Everolimus, Laboratory Biomarker Analysis, Levonorgestrel-Releasing Intrauterine System
Drug · Other · Device
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older · Female only
Enrollment
102 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2028
U.S. locations
18
States / cities
Greeley, Colorado • Loveland, Colorado • Honolulu, Hawaii + 11 more
Source: ClinicalTrials.gov public record
Updated Sep 9, 2026 · Synced Sep 20, 2026, 6:16 AM EDT
Completed No phase listed Observational

Quick Start of Highly Effective Contraception

NCT02076217
View directory record Official record
Conditions
IUD, Contraceptive Implant, Contraception, Birth Control, Emergency Contraception
Interventions
Copper T-380 IUD, LNG IUD, Contraceptive implant Nexplanon, Depo-Provera
Drug · Device
Lead sponsor
University of Utah
Other
Eligibility
15 Years to 45 Years · Female only
Enrollment
270 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2021
U.S. locations
1
States / cities
West Valley City, Utah
Source: ClinicalTrials.gov public record
Updated Apr 5, 2026 · Synced Sep 20, 2026, 6:16 AM EDT
Withdrawn Phase 2 Interventional

IUD and Norethindrone Acetate for Treatment of Endometriosis

NCT04948489
View directory record Official record
Conditions
Endometriosis
Interventions
norethindrone acetate (NETA), Placebo
Drug
Lead sponsor
Boston Children's Hospital
Other
Eligibility
13 Years to 24 Years · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 20, 2025 · Synced Sep 20, 2026, 6:16 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

PK Study of 90-Day Use of Vaginal Rings Containing Dapivirine and Levonorgestrel

NCT03467347
View directory record Official record
Conditions
Healthy, Contraception, Contraceptive Usage, Women
Interventions
VR: 200 mg DPV + 320 mg LNG
Drug
Lead sponsor
International Partnership for Microbicides, Inc.
Industry
Eligibility
18 Years to 45 Years · Female only
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 8, 2019 · Synced Sep 20, 2026, 6:16 AM EDT
Terminated Phase 3 Interventional Accepts healthy volunteers Results available

A Study of a Levonorgestrel-Releasing Intrauterine System for Long-Term, Reversible Contraception

NCT00995150
View directory record Official record
Conditions
Contraception
Interventions
LNG20, Mirena
Drug
Lead sponsor
Medicines360
Other
Eligibility
16 Years to 45 Years · Female only
Enrollment
1,910 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2021
U.S. locations
25
States / cities
Phoenix, Arizona • Palo Alto, California • San Francisco, California + 22 more
Source: ClinicalTrials.gov public record
Updated Aug 13, 2024 · Synced Sep 20, 2026, 6:16 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Pain Control for Intrauterine Device Placement: A Trial of Ketorolac Prior to Intrauterine Device Placement

NCT01664559
View directory record Official record
Conditions
Pain Control With IUD Insertion
Interventions
Ketorolac, Normal Saline
Drug
Lead sponsor
Lynn Ngo
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
67 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Dec 22, 2015 · Synced Sep 20, 2026, 6:16 AM EDT
Completed Phase 3 Interventional

A Study to Evaluate the Efficacy of Seasonique for the Treatment of Cyclic Pelvic Pain

NCT00196365
View directory record Official record
Conditions
Dysmenorrhea
Interventions
levonorgestrel/EE 0.15/0.03 and EE 0.01 mg tablets, levonorgestrel/EE 0.15/0.03 mg tablets and placebo
Drug
Lead sponsor
Duramed Research
Industry
Eligibility
18 Years to 40 Years · Female only
Enrollment
97 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
18
States / cities
Huntsville, Alabama • Phoenix, Arizona • San Diego, California + 14 more
Source: ClinicalTrials.gov public record
Updated May 11, 2014 · Synced Sep 20, 2026, 6:16 AM EDT
Completed Phase 4 Interventional Results available

RAPID EC - Rct Assessing Pregnancy With Intrauterine Devices for EC

NCT02175030
View directory record Official record
Conditions
Contraception
Interventions
Copper IUD, Levonorgestrel IUD
Drug
Lead sponsor
University of Utah
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
711 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
6
States / cities
Logan, Utah • Ogden, Utah • Orem, Utah + 3 more
Source: ClinicalTrials.gov public record
Updated Jun 28, 2022 · Synced Sep 20, 2026, 6:16 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Investigate the Pharmacokinetics of Ethinyl Estradiol and Levonorgestrel When Given Alone and in Combination With Baxdrostat in Healthy Females of Non-childbearing Potential

NCT06657105
View directory record Official record
Conditions
Healthy Participants
Interventions
EE/LNG, Baxdrostat
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
35 Years to 75 Years · Female only
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Brooklyn, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 6, 2025 · Synced Sep 20, 2026, 6:16 AM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

A Multicenter Analysis of Levonorgestrel-Intrauterine System (LNG-IUS) Use in the Postpartum Period

NCT01161095
View directory record Official record
Conditions
Contraception, Postpartum Period
Interventions
LNG-IUS
Device
Lead sponsor
United States Naval Medical Center, Portsmouth
Federal
Eligibility
18 Years to 45 Years · Female only
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2014
U.S. locations
2
States / cities
Little Rock, Arkansas • Portsmouth, Virginia
Source: ClinicalTrials.gov public record
Updated Jul 19, 2025 · Synced Sep 20, 2026, 6:16 AM EDT
Completed Phase 4 Interventional Results available

Treatment of Heavy Menstrual Bleeding in Women With Uterine Fibroids

NCT03317795
View directory record Official record
Conditions
Heavy Menstrual Bleeding, Menorrhagia, Uterine Fibroids
Interventions
Levonorgestrel IUS, Tranexamic Acid
Drug
Lead sponsor
Shannon K. Laughlin-Tommaso
Other
Eligibility
25 Years to 50 Years · Female only
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
2
States / cities
Jacksonville, Florida • Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Dec 7, 2021 · Synced Sep 20, 2026, 6:16 AM EDT
Active, not recruiting Not applicable Interventional

Role of Dietary Habits in Efficacy of Bariatric Surgery - Study C

NCT03482986
View directory record Official record
Conditions
Bariatric Surgery, Sleeve Gastrectomy, Obesity
Interventions
Dietary habits plan
Behavioral
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
22 Years to 62 Years
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2028
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 4, 2025 · Synced Sep 20, 2026, 6:16 AM EDT
Completed Phase 3 Interventional Results available

Safety and Efficacy of CDB-2914 in Comparison to Levonorgestrel for Emergency Contraception

NCT00551616
View directory record Official record
Conditions
Contraception
Interventions
CDB-2914, Levonorgestrel
Drug
Lead sponsor
HRA Pharma
Industry
Eligibility
16 Years and older · Female only
Enrollment
2,221 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
23
States / cities
Los Angeles, California • Santa Monica, California • Boulder, Colorado + 18 more
Source: ClinicalTrials.gov public record
Updated May 2, 2022 · Synced Sep 20, 2026, 6:16 AM EDT
Completed Phase 2 Interventional

An Efficacy and Safety Study of Siltuximab in Participants With Relapsed or Refractory Multiple Myeloma

NCT00402181
View directory record Official record
Conditions
Multiple Myeloma
Interventions
Siltuximab, Dexamethasone
Biological · Drug
Lead sponsor
Centocor, Inc.
Industry
Eligibility
18 Years and older
Enrollment
53 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
9
States / cities
Duarte, California • Norwalk, Connecticut • Indianapolis, Indiana + 6 more
Source: ClinicalTrials.gov public record
Updated May 13, 2014 · Synced Sep 20, 2026, 6:16 AM EDT
Completed Phase 3 Interventional Results available

Study in Women With Idiopathic Menorrhagia to Determine the Reduction in Menstrual Blood Loss (MBL) After Treatment With the Levonorgestrel-releasing Intrauterine System (IUS)

NCT00360490
View directory record Official record
Conditions
Menorrhagia
Interventions
Levonorgestrel IUS (Mirena, BAY86-5028), Medroxyprogesterone acetate
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years and older · Female only
Enrollment
165 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
37
States / cities
Tucson, Arizona • Beverly Hills, California • Carmichael, California + 32 more
Source: ClinicalTrials.gov public record
Updated Dec 8, 2013 · Synced Sep 20, 2026, 6:16 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

A Randomized Controlled Trial of Oral Naproxen and Transdermal Estradiol for Bleeding in LNG-IUC

NCT00789802
View directory record Official record
Conditions
Contraception, Bleeding
Interventions
transdermal estradiol, naproxen, oral placebo
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
129 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2011
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Mar 19, 2018 · Synced Sep 20, 2026, 6:16 AM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers

Study Comparing Emergency Contraception Effectiveness in Women Who Weight ≥ 80 kg

NCT03537768
View directory record Official record
Conditions
Contraception
Interventions
Ulipristal Acetate, Levonorgestrel
Drug
Lead sponsor
Kimberly Myer
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
532 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2022
U.S. locations
18
States / cities
Los Angeles, California • Sacramento, California • San Francisco, California + 14 more
Source: ClinicalTrials.gov public record
Updated Nov 19, 2025 · Synced Sep 20, 2026, 6:16 AM EDT