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Showing 1–24 of 221 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: vaginal ring Clear all
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Treatment of Gardnerella Vaginalis Vaginal Colonization With Amoxicillin

NCT03211156
View directory record Official record
Conditions
Vaginitis Gardnerella
Interventions
Amoxicillin, Placebo
Drug · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 45 Years · Female only
Enrollment
97 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
2
States / cities
Birmingham, Alabama • Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 27, 2020 · Synced Sep 6, 2026, 7:39 AM EDT
Completed Phase 4 Interventional

Changes to Vulva, Vestibule, Urethral Meatus and Vagina 20 Weeks Post Daily Prasterone in Women With Dyspareunia

NCT03568604
View directory record Official record
Conditions
Dyspareunia
Interventions
Prasterone
Drug
Lead sponsor
San Diego Sexual Medicine
Other
Eligibility
21 Years to 80 Years · Female only
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Jun 8, 2022 · Synced Sep 6, 2026, 7:39 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, 7:39 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Effectiveness of Clonidine, Dexmedetomidine, and Fentanyl Adjuncts for Labor Epidural Analgesia

NCT05487196
View directory record Official record
Conditions
Pregnancy Related
Interventions
Clonidine, Dexmedetomidine, Fentanyl, Ropivacaine
Drug
Lead sponsor
Grace Lim, MD, MS
Other
Eligibility
18 Years to 65 Years · Female only
Enrollment
88 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 26, 2025 · Synced Sep 6, 2026, 7:39 AM EDT
Completed Phase 3 Interventional

A Phase III Randomized Trial of Topical Vaginal Fluorouracil (5-Fluorouracil, 5-FU) Maintenance Therapy Versus Observation After Standard Treatment for High-Grade Cervical Dysplasia in HIV-Infected Women

NCT00000758
View directory record Official record
Conditions
HIV Infections, Cervix, Dysplasia
Interventions
Fluorouracil
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
13 Years and older · Female only
Enrollment
158 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Ends 1998
U.S. locations
19
States / cities
Los Angeles, California • Miami, Florida • Chicago, Illinois + 13 more
Source: ClinicalTrials.gov public record
Updated Nov 3, 2021 · Synced Sep 6, 2026, 7:39 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, 7:39 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Vaginal Progesterone Versus Progesterone in Oil in Donor Egg Recipient In Vitro Fertilization Cycles Utilizing Vitrified Donor Eggs

NCT01465373
View directory record Official record
Conditions
Infertility
Interventions
Endometrin, Progesterone in Oil
Drug
Lead sponsor
Fertility Centers of Illinois
Other
Eligibility
21 Years to 49 Years · Female only
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Nov 3, 2011 · Synced Sep 6, 2026, 7:39 AM EDT
Recruiting Not applicable Interventional

Silicone Gel vs. Estrogen Vaginal Cream for the Management of Genitourinary Syndrome of Menopause

NCT05672901
View directory record Official record
Conditions
Genitourinary Syndrome of Menopause
Interventions
StrataMGT, Estrace 0.01% Vaginal Cream
Device · Drug
Lead sponsor
Stratpharma AG
Industry
Eligibility
18 Years and older · Female only
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
3
States / cities
Laguna Hills, California • Miami, Florida • Johns Creek, Georgia
Source: ClinicalTrials.gov public record
Updated Feb 19, 2026 · Synced Sep 6, 2026, 7:39 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, 7:39 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, 7:39 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

An Open-label Study to Evaluate the Effects of Concurrent Administration of Vaginal Antimycotic Medication Miconazole Nitrate on the Pharmacokinetics of Nestorone and Ethinyl Estradiol Delivered by a Contraceptive Vaginal Ring in Normal Ovulating Women

NCT02215395
View directory record Official record
Conditions
Antifungal Drug Adverse Reaction
Interventions
NES/EE CVR
Drug
Lead sponsor
Population Council
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Springfield, Missouri
Source: ClinicalTrials.gov public record
Updated Aug 14, 2017 · Synced Sep 6, 2026, 7:39 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

The Effects of Annovera™ and Tampon Co-Usage on the Pharmacokinetics of Segesterone Acetate and Ethinyl Estradiol

NCT04272008
View directory record Official record
Conditions
Contraception
Interventions
Segesterone Acetate and Ethinyl Estradiol, Tampon
Drug · Other
Lead sponsor
TherapeuticsMD
Industry
Eligibility
18 Years to 35 Years · Female only
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 28, 2021 · Synced Sep 6, 2026, 7:39 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Relationship Between the Menstrual Cycle and Heart Disease in Women

NCT01546454
View directory record Official record
Conditions
Coronary Heart Disease
Interventions
Ethinyl Estradiol-Levonorgestrel combination, leuprolide acetate, Estradiol, Progesterone
Drug
Lead sponsor
Oregon Health and Science University
Other
Eligibility
21 Years to 40 Years · Female only
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Mar 21, 2017 · Synced Sep 6, 2026, 7:39 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

The Direct Access Study: Access to Hormonal Birth Control Through Community Pharmacies

NCT00065871
View directory record Official record
Conditions
Contraception
Interventions
Contraceptive Screening by Pharmacist, Contraceptive Prescribing by Pharmacist
Behavioral
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
18 Years to 45 Years · Female only
Enrollment
250 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2006
U.S. locations
5
States / cities
Kent, Washington • Kirkland, Washington • Puyallup-South Hill, Washington + 2 more
Source: ClinicalTrials.gov public record
Updated Apr 5, 2007 · Synced Sep 6, 2026, 7:39 AM EDT
Completed Phase 2Phase 3 Interventional

Vaginal Progesterone Supplementation in Women With PCOS Undergoing Ovulation Induction With Letrozole

NCT03440359
View directory record Official record
Conditions
Polycystic Ovary Syndrome
Interventions
Progesterone Vaginal Gel 8%, Letrozole Oral Tablet, pelvic ultrasound, Ovidrel 250 MCG Per 0.5 ML Prefilled Syringe, Intrauterine insemination or timed intercourse
Drug · Diagnostic Test · Other
Lead sponsor
Eastern Virginia Medical School
Other
Eligibility
20 Years to 40 Years · Female only
Enrollment
52 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
1
States / cities
Norfolk, Virginia
Source: ClinicalTrials.gov public record
Updated Feb 25, 2018 · Synced Sep 6, 2026, 7:39 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

In Vivo Drug Interaction Pharmacokinetic Study of Tenofovir 1% Gel and Three Commonly Used Vaginal Products

NCT01813162
View directory record Official record
Conditions
HIV Prevention
Interventions
Tenofovir 1% gel, Vaginal product
Drug
Lead sponsor
CONRAD
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
101 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
2
States / cities
San Francisco, California • The Bronx, New York
Source: ClinicalTrials.gov public record
Updated May 21, 2015 · Synced Sep 6, 2026, 7:39 AM EDT
Completed Phase 3 Interventional Results available

Comparative Effectiveness of Pregnancy Failure Management Regimens

NCT02012491
View directory record Official record
Conditions
Spontaneous Abortion
Interventions
Misoprostol, Mifepristone
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older · Female only
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2019
U.S. locations
3
States / cities
Sacramento, California • The Bronx, New York • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 17, 2019 · Synced Sep 6, 2026, 7:39 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 6, 2026, 7:39 AM EDT
Completed Phase 2 Interventional

Comparison of DR-2011 to a Progesterone Vaginal Gel for Luteal Phase Replacement

NCT00117468
View directory record Official record
Conditions
Infertility
Interventions
DR-2011, Progesterone 8% Vaginal Gel
Drug
Lead sponsor
Duramed Research
Industry
Eligibility
18 Years to 50 Years · Female only
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
1
States / cities
Norfolk, Virginia
Source: ClinicalTrials.gov public record
Updated May 11, 2014 · Synced Sep 6, 2026, 7:39 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Comparison of Estradiol Vaginal Cream to Estrace® Cream in 350 Postmenopausal Females With Atrophic Vaginitis

NCT02195986
View directory record Official record
Conditions
Atrophic Vaginitis
Interventions
Estradiol Vaginal Cream, 0.01%, Estrace® 0.01% cream, Placebo Vaginal Cream
Drug
Lead sponsor
Mylan Pharmaceuticals Inc
Industry
Eligibility
40 Years to 70 Years · Female only
Enrollment
366 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
21
States / cities
Tucson, Arizona • Los Angeles, California • Sacramento, California + 16 more
Source: ClinicalTrials.gov public record
Updated Mar 8, 2022 · Synced Sep 6, 2026, 7:39 AM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers

Pharmacokinetics of Progesterone in Pregnancy-2

NCT04753957
View directory record Official record
Conditions
Pregnancy Related
Interventions
micronized Progesterone
Drug
Lead sponsor
Thomas Jefferson University
Other
Eligibility
16 Years to 55 Years · Female only
Enrollment
3 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 25, 2022 · Synced Sep 6, 2026, 7:39 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Comparing IM vs. Vaginal Progesterone for Pre-term Birth

NCT00579553
View directory record Official record
Conditions
Infant, Premature, Premature Birth
Interventions
Intramuscular Progesterone, Vaginal Progesterone
Drug
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
174 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2011
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated May 18, 2021 · Synced Sep 6, 2026, 7:39 AM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Post Operative Continuous Active Combination Sex Steroids for the Prevention of Recurrent Endometrioma Formation

NCT00999479
View directory record Official record
Conditions
Endometrioma
Interventions
Norethindrone acetate and ethinyl estradiol tablets, USP, ferrous fumarate (placebo) tablets
Drug
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years to 35 Years · Female only
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Dec 9, 2013 · Synced Sep 6, 2026, 7:39 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Pharmacokinetic Study of the Vaginal Microbicide Agent 1% Tenofovir Gel

NCT00561496
View directory record Official record
Conditions
HIV Infections
Interventions
Tenofovir gel
Drug
Lead sponsor
CONRAD
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
49 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
2
States / cities
Pittsburgh, Pennsylvania • Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 27, 2008 · Synced Sep 6, 2026, 7:39 AM EDT