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ClinicalTrials.gov public records Last synced Oct 21, 2026, 10:39 AM EDT

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Showing 25–48 of 101 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: PRG Clear all
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Effect of Oral Estradiol and Progesterone Therapy on Vaginal Cytokines in Postmenopausal Women

NCT02224313
View directory record Official record
Conditions
Menopause
Interventions
oral estradiol 1.0 mg, oral progesterone 100 mg
Drug
Lead sponsor
Intira Sriprasert
Other
Eligibility
20 Years to 65 Years · Female only
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
1
States / cities
Norfolk, Virginia
Source: ClinicalTrials.gov public record
Updated Mar 19, 2020 · Synced Oct 21, 2026, 10:39 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 26, 2018 · Synced Oct 21, 2026, 10:39 AM EDT
Recruiting Early Phase 1 Interventional Accepts healthy volunteers

Acute Progesterone Suppression of Wake vs. Sleep Luteinizing Hormone Pulse Frequency in Pubertal Girls With and Without Hyperandrogenism

NCT00929006
View directory record Official record
Conditions
Puberty, Hyperandrogenism
Interventions
Micronized progesterone suspension, Placebo
Drug
Lead sponsor
University of Virginia
Other
Eligibility
10 Years to 17 Years · Female only
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2025
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Aug 5, 2025 · Synced Oct 21, 2026, 10:39 AM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Effects of Progesterone on IV Nicotine Induced Changes on BOLD fMRI Signal, Hormones and Subjective Ratings of Stimulant Drugs

NCT01589068
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Intravenous Nicotine, Progesterone
Drug
Lead sponsor
Mclean Hospital
Other
Eligibility
18 Years to 40 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2015
U.S. locations
1
States / cities
Belmont, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 17, 2024 · Synced Oct 21, 2026, 10:39 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Sex Hormones and Orthostatic Tolerance

NCT01153581
View directory record Official record
Conditions
Orthostatic Intolerance
Interventions
Ganirelix acetate, 17β-Oestradiol, Progesterone
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 34 Years · Female only
Enrollment
109 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2013
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Dec 13, 2018 · Synced Oct 21, 2026, 10:39 AM EDT
Completed Not applicable Interventional Results available

Sex Differences, Hormones & Smoking Cessation

NCT01744574
View directory record Official record
Conditions
Tobacco Cessation
Interventions
Placebo, Progesterone, Smoking Cessation Behavioral Counseling
Other · Drug
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 60 Years
Enrollment
216 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2017
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jul 12, 2019 · Synced Oct 21, 2026, 10:39 AM EDT
Completed Phase 3 Interventional

Subcutaneous Progesterone in Frozen- Thawed Single Euploid Blastocyst Transfer.

NCT04549116
View directory record Official record
Conditions
Infertility
Interventions
Progesterone-IBSA Injectable Solution, Progesterone Vaginal Gel with Applicator, Placebo Vaginal gel with applicator, Placebo injectable solution
Drug
Lead sponsor
IBSA Institut Biochimique SA
Industry
Eligibility
35 Years to 42 Years · Female only
Enrollment
688 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
24
States / cities
Tempe, Arizona • Encino, California • Los Angeles, California + 20 more
Source: ClinicalTrials.gov public record
Updated Aug 27, 2026 · Synced Oct 21, 2026, 10:39 AM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers Results available

The Menopause Transition: Estrogen Variability, Stress Reactivity and Mood

NCT03003949
View directory record Official record
Conditions
Perimenopausal Disorder, Stress, Emotional
Interventions
Estradiol Patch, 0.1 Mg/24 Hours Weekly Transdermal Film, Extended Release, Placebo Patch, Progesterone Capsule, Placebo Oral Capsule
Drug
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
45 Years to 60 Years · Female only
Enrollment
82 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
2
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 26, 2021 · Synced Oct 21, 2026, 10:39 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Pharmacokinetics of Progesterone in Pregnancy

NCT03340701
View directory record Official record
Conditions
Progesterone
Interventions
vaginal progesterone suppository
Drug
Lead sponsor
Thomas Jefferson University
Other
Eligibility
18 Years to 55 Years · Female only
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 20, 2020 · Synced Oct 21, 2026, 10:39 AM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

Perimenopausal Estrogen Replacement Therapy Study

NCT01308814
View directory record Official record
Conditions
Perimenopause, Menopause, Depression
Interventions
Estradiol, Placebo
Drug
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
45 Years to 60 Years · Female only
Enrollment
172 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2016
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 22, 2017 · Synced Oct 21, 2026, 10:39 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Characterizing the Neural Substrates of Irritability in Women: an Experimental Neuroendocrine Model

NCT04051320
View directory record Official record
Conditions
Perinatal Depression, Post Partum Depression, Depression, Postpartum, Depression
Interventions
Leuprolide Acetate 3.75 MG/ML, Estradiol 2 Mg tablet, Micronized progesterone
Drug
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
22 Years to 45 Years · Female only
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 25, 2023 · Synced Oct 21, 2026, 10:39 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

PREGNANT Short Cervix Trial

NCT00615550
View directory record Official record
Conditions
Preterm Delivery, Short Cervix, Short Uterine Cervical Length
Interventions
progesterone, placebo
Drug
Lead sponsor
Juniper Pharmaceuticals, Inc.
Industry
Eligibility
15 Years to 45 Years · Female only
Enrollment
465 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2010
U.S. locations
27
States / cities
Mobile, Alabama • Phoenix, Arizona • Orange, California + 21 more
Source: ClinicalTrials.gov public record
Updated Mar 13, 2012 · Synced Oct 21, 2026, 10:39 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers Results available

Investigation of Female Reproductive Hormone Dynamics During Adolescence

NCT02486757
View directory record Official record
Conditions
Menstruation Disturbances
Interventions
micronized progesterone, transdermal estradiol
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
12 Years to 16 Years · Female only
Enrollment
9 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 24, 2018 · Synced Oct 21, 2026, 10:39 AM EDT
Completed Phase 2 Interventional Results available

Neurobiology of Bulimia Nervosa

NCT04225221
View directory record Official record
Conditions
Bulimia Nervosa
Interventions
Estradiol, Micronized progesterone, Leuprolide Acetate, Placebo Oral Capsule
Drug
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 42 Years · Female only
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 26, 2022 · Synced Oct 21, 2026, 10:39 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Estrogen Sensitivity and Ovulatory Dysfunction in Obesity

NCT01381016
View directory record Official record
Conditions
Obesity, Infertility
Interventions
Estradiol, Gonadotropin-releasing hormone (GnRH), Progesterone
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 42 Years · Female only
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Apr 20, 2015 · Synced Oct 21, 2026, 10:39 AM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Effects of Progesterone on IV Nicotine-Induced Changes in Hormones and Subjective Ratings of Stimulant Drug Effect

NCT01589081
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Intravenous Nicotine, Progesterone
Drug
Lead sponsor
Mclean Hospital
Other
Eligibility
18 Years to 40 Years · Female only
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2015
U.S. locations
1
States / cities
Belmont, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 17, 2024 · Synced Oct 21, 2026, 10:39 AM EDT
Not listed Phase 2 Interventional Accepts healthy volunteers

Follicle Stimulating Hormone (FSH) Glycosylation in Women: Effect of Estradiol

NCT03868202
View directory record Official record
Conditions
Follicle Stimulating Hormone Glycosylation, Urinary FSH21/FSH24 Ratio, Estradiol Effect
Interventions
Estradiol Transdermal Product
Drug
Lead sponsor
Eastern Virginia Medical School
Other
Eligibility
20 Years to 55 Years · Female only
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Norfolk, Virginia
Source: ClinicalTrials.gov public record
Updated Jul 12, 2019 · Synced Oct 21, 2026, 10:39 AM EDT
Terminated Phase 2 Interventional Results available

Estradiol and Progesterone in Hospitalized COVID-19 Patients

NCT04865029
View directory record Official record
Conditions
Covid19
Interventions
Placebo injection and placebo pill, Estradiol Cypionate 5 mg/ml, Progesterone 200 mg Oral Capsule
Other · Drug
Lead sponsor
Tulane University
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
New Orleans, Louisiana
Source: ClinicalTrials.gov public record
Updated Jun 27, 2023 · Synced Oct 21, 2026, 10:39 AM EDT
Completed Phase 2 Interventional Results available

Randomized Trial of Maternal Progesterone Therapy

NCT02133573
View directory record Official record
Conditions
Congenital Heart Disease, Periventricular Leucomalacia, Brain Development, Cardiac Surgery, Neurodevelopmental Disability, Fetal Neuroprotection
Interventions
Progesterone, Vaginal lubricant
Drug
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
Not listed
Enrollment
102 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2021
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 9, 2023 · Synced Oct 21, 2026, 10:39 AM EDT
Recruiting Phase 2 Interventional Accepts healthy volunteers

Progesterone in Gender Affirming Hormone Therapy Study

NCT06807580
View directory record Official record
Conditions
Transgender Women
Interventions
Placebo, Progesterone
Drug
Lead sponsor
Emory University
Other
Eligibility
18 Years to 60 Years · Male only
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Dec 24, 2025 · Synced Oct 21, 2026, 10:39 AM EDT
Terminated Early Phase 1 Interventional

Natural Progesterone for the Treatment of Recurrent Glioblastoma

NCT05091866
View directory record Official record
Conditions
Gliosarcoma, Recurrent Glioblastoma
Interventions
Quality-of-Life Assessment, Questionnaire Administration, Therapeutic Progesterone
Other · Biological
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Oct 21, 2026, 10:39 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Progesterone & Postpartum Relapse to Smoking

NCT01798394
View directory record Official record
Conditions
Tobacco Use Cessation, Tobacco Use Disorder
Interventions
Progesterone, Placebo
Drug · Other
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
46 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 9, 2017 · Synced Oct 21, 2026, 10:39 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Fat Mediated Modulation of Reproductive and Endocrine Function in Young Athletes

NCT00946192
View directory record Official record
Conditions
Exercise-related Amenorrhea
Interventions
Transdermal 17Beta-estradiol, progesterone, Ethinyl Estradiol + Desogestrel, Sham Comparator
Drug · Dietary Supplement
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
14 Years to 21 Years · Female only
Enrollment
121 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2021
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 11, 2021 · Synced Oct 21, 2026, 10:39 AM EDT
Recruiting Phase 4 Interventional

Bleeding Patterns in Sequential and Continuous Progesterone Supplementation in Adolescents With Turner Syndrome

NCT06834594
View directory record Official record
Conditions
Turner Syndrome, Primary Ovarian Insufficiency (Poi)
Interventions
Micronized progesterone 200 MG, Micronized Progesterone 100 MG
Drug
Lead sponsor
Children's Mercy Hospital Kansas City
Other
Eligibility
12 Years to 20 Years · Female only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
Kansas City, Missouri
Source: ClinicalTrials.gov public record
Updated Aug 25, 2026 · Synced Oct 21, 2026, 10:39 AM EDT