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ClinicalTrials.gov public records Last synced Oct 25, 2026, 5:45 PM EDT

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Showing 1–24 of 120 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Menstrual Cycles Clear all
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 10, 2015 · Synced Oct 25, 2026, 5:45 PM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers

Effect of 'Cramp Bites' on Period Cramps in Women Aged 18-25

NCT06227676
View directory record Official record
Conditions
Dysmenorrhea Primary, Dysmenorrhea, Menstrual Discomfort, Menstrual Problem, Menstrual Cycle Abnormal, Menstrual Pain, Period Pain, Period Problem, PMS, Premenstrual Syndrome, PCOS, PCOS (Polycystic Ovary Syndrome) of Bilateral Ovaries, PCOS (Polycystic Ovary Syndrome) of Left Ovary, PCOS (Polycystic Ovary Syndrome) of Right Ovary, Polycystic Ovary Syndrome, Premenstrual Dysphoric Disorder, Cramps, Ovarian Cysts
Interventions
Cramp Bites by Aunt Flo's Kitchen
Dietary Supplement
Lead sponsor
Cornell University
Other
Eligibility
18 Years to 25 Years · Female only
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Ithaca, New York
Source: ClinicalTrials.gov public record
Updated Apr 12, 2024 · Synced Oct 25, 2026, 5:45 PM EDT
Active, not recruiting No phase listed Observational

Menstrual Cycle Maintenance and Quality of Life: A Prospective Study

NCT00589654
View directory record Official record
Conditions
Amenorrhea, Menstrual Cycle, Breast Cancer
Interventions
Questionnaire
Other
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
810 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1997 – 2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 26, 2026 · Synced Oct 25, 2026, 5:45 PM EDT
Completed Not applicable Interventional Results available

Metabolic Syndrome in PCOS: Precursors and Interventions

NCT00442689
View directory record Official record
Conditions
Polycystic Ovary Syndrome, Metabolic Syndrome
Interventions
flutamide, ethinyl estradiol 35 mcg and drospirenone 3 mg, placebo
Drug · Other
Lead sponsor
Northwestern University
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
97 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2012
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 6, 2014 · Synced Oct 25, 2026, 5:45 PM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Assessing the Effects of Hormones on Noninvasive Transcranial Stimulation

NCT07635017
View directory record Official record
Conditions
Cortical Excitability, Healthy, TMS, Menstrual Cycle, Menopause
Interventions
Transcranial Electrical Stimulation, Transcranial Magnetic Stimulation, TES + TMS
Device
Lead sponsor
Carnegie Mellon University
Other
Eligibility
18 Years to 40 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 9, 2026 · Synced Oct 25, 2026, 5:45 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Alternating Urine Redox Status Of Consecutive Menstrual Cycles

NCT04157309
View directory record Official record
Conditions
Pregnancy Related, Gender
Interventions
Not listed
Lead sponsor
University of Michigan
Other
Eligibility
18 Years to 30 Years · Female only
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Mar 23, 2021 · Synced Oct 25, 2026, 5:45 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Study to Evaluate the Effect of Funk It Cycle Bites on PMS

NCT05900024
View directory record Official record
Conditions
Premenstrual Syndrome
Interventions
Funk It Cycle Bites
Other
Lead sponsor
Funk It Wellness
Industry
Eligibility
18 Years to 40 Years · Female only
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated Feb 29, 2024 · Synced Oct 25, 2026, 5:45 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Identification and Validation of Epigenetic Biomarkers of PMDD

NCT06771583
View directory record Official record
Conditions
PMDD, Premenstrual Dysphoric Disorder (PMDD), Premenstrual Syndrome-PMS, Premenstrual Syndrome, Menstrual Cycle
Interventions
Not listed
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2031
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated May 7, 2026 · Synced Oct 25, 2026, 5:45 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Menstrual Cycle TMS Plasticity Pilot

NCT07180654
View directory record Official record
Conditions
Cortical Activation
Interventions
transcranial magnetic stimulation
Device
Lead sponsor
University of Pennsylvania
Other
Eligibility
20 Years to 40 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 9, 2026 · Synced Oct 25, 2026, 5:45 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Role of Hormones in Susceptibility to Seizures in Women With Epilepsy

NCT00044252
View directory record Official record
Conditions
Epilepsy
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
18 Years to 45 Years · Female only
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2008
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 2, 2017 · Synced Oct 25, 2026, 5:45 PM EDT
Recruiting No phase listed Observational

Effects of Glucagon-like Peptide-1 (GLP-1) Agonist in Neuro-reproductive Function in Obese Adolescent Females With Polycystic Ovary Syndrome (PCOS)

NCT07169136
View directory record Official record
Conditions
Polycystic Ovarian Syndrome in Adolescent Females, Obesity (Disorder)
Interventions
GLP-1 Receptor Agonists
Drug
Lead sponsor
Nemours Children's Clinic
Other
Eligibility
12 Years to 18 Years · Female only
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Sep 18, 2026 · Synced Oct 25, 2026, 5:45 PM EDT
Completed Phase 2 Interventional Results available

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

NCT00196313
View directory record Official record
Conditions
Dysmenorrhea
Interventions
levonorgestrel/EE 0.15/0.03 and EE 0.01 mg tablets, Placebo tablet
Drug
Lead sponsor
Duramed Research
Industry
Eligibility
Up to 17 Years · Female only
Enrollment
95 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
13
States / cities
Denver, Colorado • Decatur, Georgia • Louisville, Kentucky + 10 more
Source: ClinicalTrials.gov public record
Updated Sep 22, 2016 · Synced Oct 25, 2026, 5:45 PM EDT
Not listed Not applicable Interventional

A Clinical Trial to Examine the Efficacy of a Supplement to Support Hormone Regulation in Women

NCT06531668
View directory record Official record
Conditions
Hormone Regulation
Interventions
Beyond Hormone, Placebo
Dietary Supplement · Other
Lead sponsor
Scale Media Inc
Industry
Eligibility
25 Years to 45 Years · Female only
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated Aug 1, 2024 · Synced Oct 25, 2026, 5:45 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Monitoring Functional Variation in the Breast During Menstrual Cycle by Using Diffuse Optical Spectroscopy

NCT00540306
View directory record Official record
Conditions
Accessory; Breast Tissue
Interventions
Diffuse Optical Spectroscopy
Device
Lead sponsor
University of California, Irvine
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2012
U.S. locations
1
States / cities
Irvine, California
Source: ClinicalTrials.gov public record
Updated Oct 20, 2022 · Synced Oct 25, 2026, 5:45 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Effects of Resistance Training on Substrate Metabolism During the Menstrual Cycle

NCT04024826
View directory record Official record
Conditions
Menstrual Cycle, Substrate Metabolism
Interventions
EFP, LFP, ELP, LLP
Behavioral
Lead sponsor
Southern Illinois University Edwardsville
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Edwardsville, Illinois
Source: ClinicalTrials.gov public record
Updated Oct 4, 2021 · Synced Oct 25, 2026, 5:45 PM EDT
Enrolling by invitation Not applicable Interventional Accepts healthy volunteers

Menstrual Cycle-Synced Neuromuscular Training

NCT06983184
View directory record Official record
Conditions
ACL Injuries
Interventions
MC-synced NTP, Blinded NTP
Other
Lead sponsor
Sophia Ulman
Other
Eligibility
13 Years to 19 Years · Female only
Enrollment
148 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Frisco, Texas
Source: ClinicalTrials.gov public record
Updated Jul 1, 2026 · Synced Oct 25, 2026, 5:45 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Study of Gonadotropin-Releasing Hormone Pulse Frequency in Sexual Maturation and in the Menstrual Cycle

NCT00004335
View directory record Official record
Conditions
Hypogonadism, Precocious Puberty
Interventions
Not listed
Lead sponsor
National Center for Research Resources (NCRR)
NIH
Eligibility
7 Years to 35 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 1993
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Jun 24, 2005 · Synced Oct 25, 2026, 5:45 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Longitudinal Analysis of the Vaginal Microbiome

NCT05383326
View directory record Official record
Conditions
Vaginal Microbiome
Interventions
Not listed
Lead sponsor
Viome
Industry
Eligibility
18 Years and older · Female only
Enrollment
29 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Bothell, Washington
Source: ClinicalTrials.gov public record
Updated Dec 12, 2023 · Synced Oct 25, 2026, 5:45 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Neural and Hormonal Influences on Sex Differences in Risk for AUD

NCT04929288
View directory record Official record
Conditions
Alcohol Use Disorder
Interventions
Alcohol
Drug
Lead sponsor
Jessica Weafer
Other
Eligibility
21 Years to 26 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2027
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated May 22, 2026 · Synced Oct 25, 2026, 5:45 PM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Effect of Menstrual Cycle on Central Nervous System (CNS) Processing of Gut Stimuli in Irritable Bowel Syndrome (IBS) and Control

NCT00219531
View directory record Official record
Conditions
Irritable Bowel Syndrome
Interventions
perception of rectal balloon distention
Behavioral
Lead sponsor
Penn State University
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1999 – 2015
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Nov 29, 2017 · Synced Oct 25, 2026, 5:45 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Impact of Sleep Disruption on the Menstrual Cycle

NCT00456222
View directory record Official record
Conditions
Sleep, Circadian Rhythm, Menstrual Cycle
Interventions
Disrupting or changing the timing or the duration of sleep
Behavioral
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 30 Years · Female only
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2009
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 21, 2009 · Synced Oct 25, 2026, 5:45 PM EDT
Completed No phase listed Observational

The Influence of the Menstrual Cycle on Lithium and Sertraline Blood Levels

NCT01385709
View directory record Official record
Conditions
Bipolar Affective Disorders, Cyclothymic Disorder, Schizoaffective Disorder, Major Depressive Disorder, Dysthymic Disorder, Obsessive-Compulsive Disorder, Panic Disorder, Posttraumatic Stress Disorder, Premenstrual Dysphoric Disorder, Social Anxiety Disorder
Interventions
Not listed
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2013
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 20, 2017 · Synced Oct 25, 2026, 5:45 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Menstrual Cycle Hormones and Eating Behavior

NCT01407692
View directory record Official record
Conditions
Dietary Habits, Food Preference
Interventions
Not listed
Lead sponsor
USDA, Western Human Nutrition Research Center
Federal
Eligibility
18 Years to 35 Years · Female only
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Dec 5, 2017 · Synced Oct 25, 2026, 5:45 PM EDT
Withdrawn No phase listed Observational

Impact of Menstrual Cycle on Antiretroviral Pharmacokinetics in HIV-Infected Women

NCT01394133
View directory record Official record
Conditions
HIV Infected
Interventions
Tenofovir, Emtricitabine, Atazanavir, Ritonavir
Drug
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
21 Years to 40 Years · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Apr 30, 2013 · Synced Oct 25, 2026, 5:45 PM EDT