Independent directory Public ClinicalTrials.gov records United States
Clinical Trials Finder
Objective public record navigation
Search Results

Search by objective public record fields.

Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.

Clear filters
ClinicalTrials.gov public records Last synced Sep 15, 2026, 6:49 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Intervention: norgestrel Clear all
Completed Phase 3 Interventional

Safety and Contraceptive Efficacy of an Intravaginal Ring With LNG (Levonorgestrel) Over One Year in Healthy Women

NCT02403401
View directory record Official record
Conditions
Contraception
Interventions
Levonorgestrel (BAY98-7196)
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years to 35 Years · Female only
Enrollment
1,471 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
79
States / cities
Mobile, Alabama • Chandler, Arizona • Mesa, Arizona + 67 more
Source: ClinicalTrials.gov public record
Updated Apr 7, 2021 · Synced Sep 15, 2026, 6:49 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Open-label Study to Evaluate the Efficacy and Safety of an Extended-cycle, Low Dose Combination Oral Contraceptive

NCT00196326
View directory record Official record
Conditions
Contraception
Interventions
DR-1011
Drug
Lead sponsor
Duramed Research
Industry
Eligibility
18 Years to 40 Years · Female only
Enrollment
2,235 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2007
U.S. locations
55
States / cities
Huntsville, Alabama • Phoenix, Arizona • Tucson, Arizona + 46 more
Source: ClinicalTrials.gov public record
Updated Nov 15, 2016 · Synced Sep 15, 2026, 6:49 PM EDT
Completed Phase 4 Interventional Results available

Women With Epilepsy: a Pilot Study of PK and PD Anti-epileptic Drug Effects in Levonorgestrel Intrauterine System Users

NCT02362373
View directory record Official record
Conditions
Epilepsy, Contraception
Interventions
levonorgestrel IUS
Drug
Lead sponsor
Columbia University
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 17, 2016 · Synced Sep 15, 2026, 6:49 PM EDT
Completed Not applicable Interventional Results available

Managing Temporomandibular Disorder (TMD) Symptoms

NCT00237042
View directory record Official record
Conditions
Temporomandibular Joint Disorders
Interventions
Self Management, Targeted Self Management, 20 mcg ethinyl estradiol and 100 mcg levonorgestrel
Behavioral · Drug
Lead sponsor
University of Washington
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
252 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2010
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jul 10, 2011 · Synced Sep 15, 2026, 6:49 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Advance Supply of Emergency Contraception Compared to Routine Postpartum Care in Teens

NCT00433004
View directory record Official record
Conditions
Post Partum
Interventions
Plan B (Levonorgestrel)
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
14 Years to 19 Years · Female only
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2010
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 14, 2017 · Synced Sep 15, 2026, 6:49 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Transdermal Contraceptive Delivery System (TCDS), Also Known as AG200-15 Patch Arm

NCT01236768
View directory record Official record
Conditions
Contraception
Interventions
AG200-15, Levora
Drug
Lead sponsor
Agile Therapeutics
Industry
Eligibility
18 Years to 40 Years · Female only
Enrollment
407 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
21
States / cities
Mobile, Alabama • Green Valley, Arizona • Tucson, Arizona + 16 more
Source: ClinicalTrials.gov public record
Updated Sep 14, 2017 · Synced Sep 15, 2026, 6:49 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study of Elenestinib in Healthy Adult Female Participants

NCT07388511
View directory record Official record
Conditions
Healthy Participants
Interventions
Elenestinib, Midazolam, Levonorgestrel/Ethinyl Estradiol
Drug
Lead sponsor
Blueprint Medicines Corporation
Industry
Eligibility
18 Years to 65 Years · Female only
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Apr 19, 2026 · Synced Sep 15, 2026, 6:49 PM 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 15, 2026, 6:49 PM EDT
Completed Phase 2 Interventional Results available

Bay98-7196, Dose Finding / POC Study

NCT02203331
View directory record Official record
Conditions
Endometriosis
Interventions
Placebo, Levonorgestrel, Anastrozole, Lupron / Leuprolide acetate
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years and older · Female only
Enrollment
319 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
25
States / cities
San Diego, California • San Francisco, California • Gainesville, Florida + 22 more
Source: ClinicalTrials.gov public record
Updated Nov 6, 2023 · Synced Sep 15, 2026, 6:49 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Effects of Obesity on Pharmacokinetics of the Levonorgestrel Emergency Contraceptive Pill

NCT02104609
View directory record Official record
Conditions
Obesity
Interventions
Levonorgestrel 1.5mg by mouth once
Drug
Lead sponsor
University of Southern California
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2016
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Apr 17, 2019 · Synced Sep 15, 2026, 6:49 PM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Comparison of the Levonorgestrel IUD and the Copper IUD Placed in the Immediate Postplacental Period: A Prospective Cohort Study

NCT02067663
View directory record Official record
Conditions
Contraception
Interventions
Paragard, Mirena
Device · Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
123 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jul 4, 2019 · Synced Sep 15, 2026, 6:49 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Copper T380 IUD Versus Oral Levonorgestrel for Emergency Contraception vs. Plan B for Emergency Contraception

NCT00669396
View directory record Official record
Conditions
Pregnancy
Interventions
Copper T380 IUD, levonorgestrel
Drug
Lead sponsor
University of Utah
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
57 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
West Valley City, Utah
Source: ClinicalTrials.gov public record
Updated Dec 21, 2014 · Synced Sep 15, 2026, 6:49 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Drug Interaction Study of BIIB074 and an Oral Contraceptive Regimen

NCT03324685
View directory record Official record
Conditions
Drug Interactions
Interventions
BIIB074, OC (ethinyl estradiol and levonorgestrel)
Drug
Lead sponsor
Biogen
Industry
Eligibility
18 Years to 45 Years · Female only
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Daytona Beach, Florida
Source: ClinicalTrials.gov public record
Updated Sep 24, 2018 · Synced Sep 15, 2026, 6:49 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

AZD6140 Oral Contraceptive Interaction Study

NCT00685906
View directory record Official record
Conditions
Healthy
Interventions
AZD6140, Levonorgestrel and Ethinyl Estradiol (Nordette®)
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
18 Years to 45 Years · Female only
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Dec 1, 2010 · Synced Sep 15, 2026, 6:49 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Assess CYP3A4 Modulator, Oral Contraceptive, and pH Modifier Drug Interactions for ABI-H2158 in Healthy Adults

NCT04142762
View directory record Official record
Conditions
Chronic Hepatitis B
Interventions
ABI-H2158, Itraconazole, Rifampin, Midazolam, Ethinyl Estradiol / Levonorgestrel, Esomeprazole, Placebo matching oral contraceptive
Drug
Lead sponsor
Assembly Biosciences
Industry
Eligibility
18 Years to 65 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Mar 3, 2020 · Synced Sep 15, 2026, 6:49 PM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

Contraceptive Hormone and Reward Measurement (CHARM Study)

NCT05058872
View directory record Official record
Conditions
Oral Hormonal Contraceptive Use, Neural Activity, Mood, Hedonic Function
Interventions
Levonorgestrel/ethinyl estradiol, Placebo
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years and older · Female only
Enrollment
144 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2027
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Nov 3, 2024 · Synced Sep 15, 2026, 6:49 PM EDT
Completed Not applicable Interventional Results available

Mirena and Estrogen for Control of Perimenopause Symptoms and Ovulation Suppression

NCT01613131
View directory record Official record
Conditions
Menopausal and Other Perimenopausal Disorders
Interventions
Mirena, Estradiol, Placebo Gel
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
40 Years to 52 Years · Female only
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Dec 1, 2015 · Synced Sep 15, 2026, 6:49 PM 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 15, 2026, 6:49 PM 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 15, 2026, 6:49 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

PK and Safety Study of Vaginal Rings Containing Dapivirine and Levonorgestrel

NCT02855346
View directory record Official record
Conditions
HIV Prevention
Interventions
200 mg of DPV + 320 mg LNG, 200 mg of DPV
Combination Product
Lead sponsor
International Partnership for Microbicides, Inc.
Industry
Eligibility
18 Years to 45 Years · Female only
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
2
States / cities
Birmingham, Alabama • Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 21, 2018 · Synced Sep 15, 2026, 6:49 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

A Study to Evaluate Suppression of the Pituitary-Ovarian Axis With Three Different Oral Contraceptive Regimens

NCT00117273
View directory record Official record
Conditions
Healthy
Interventions
Seasonale [levonorgestrel (LNG)/ethinyl estradiol (EE)], Seasonique (LNG/EE and EE), Portia (LNG/EE)
Drug
Lead sponsor
Duramed Research
Industry
Eligibility
18 Years to 35 Years · Female only
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2006
U.S. locations
1
States / cities
Temple, Texas
Source: ClinicalTrials.gov public record
Updated May 8, 2014 · Synced Sep 15, 2026, 6:49 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Effect on Primary Dysmenorrhea

NCT00909857
View directory record Official record
Conditions
Primary Dysmenorrhea
Interventions
Estradiol valerate, Dienogest (Natazia, Qlaira, BAY86-5027), Ethinyl estradiol, Levonorgestrel (Miranova), Placebo Match to SH T00658ID, Placebo Match to SH D593B
Drug
Lead sponsor
Bayer
Industry
Eligibility
14 Years to 50 Years · Female only
Enrollment
507 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
10
States / cities
Tucson, Arizona • San Diego, California • Hialeah, Florida + 7 more
Source: ClinicalTrials.gov public record
Updated Aug 23, 2015 · Synced Sep 15, 2026, 6:49 PM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

A Study to Investigate the Effect of AZD6234, AZD9550, and a Combination of AZD9550 and AZD6234 on Pharmacokinetics of Combined Oral Contraceptive Ethinyl Estradiol/Levonorgestrel in Healthy Female Participants Living With Overweight or Obesity

NCT07013643
View directory record Official record
Conditions
Healthy Participants
Interventions
AZD6234, Ethinyl estradiol/Levonorgestrel (EE/LEVO), Acetaminophen (APAP), AZD9550
Drug
Lead sponsor
AstraZeneca
Industry
Eligibility
35 Years to 75 Years · Female only
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
2
States / cities
Glendale, California • Brooklyn, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 17, 2026 · Synced Sep 15, 2026, 6:49 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Drug-drug Interaction Study of CTP-543 and Oral Contraceptives in Healthy Female Subjects

NCT04309643
View directory record Official record
Conditions
Healthy Volunteers
Interventions
CTP-543, Combined oral contraceptive containing Ethinyl estradiol (EE) and Levonorgestrel (LNG)
Drug
Lead sponsor
Concert Pharmaceuticals
Industry
Eligibility
18 Years to 65 Years · Female only
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Jul 15, 2020 · Synced Sep 15, 2026, 6:49 PM EDT