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Showing 1–24 of 118 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Menstrual Cycles Clear all
Withdrawn No phase listed Observational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 29, 2013 · Synced Sep 10, 2026, 8:10 AM 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 22, 2021 · Synced Sep 10, 2026, 8:10 AM 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 19, 2022 · Synced Sep 10, 2026, 8:10 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Timing of Energy Availability on Menstrual Cycle Function

NCT06471582
View directory record Official record
Conditions
Menstrual Irregularity
Interventions
Artificially Sweetened Carbohydrate Beverage, Artificially Sweetened Beverage
Dietary Supplement
Lead sponsor
University of Colorado, Colorado Springs
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
64 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Colorado Springs, Colorado
Source: ClinicalTrials.gov public record
Updated Apr 30, 2026 · Synced Sep 10, 2026, 8:10 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

A Research Study Exploring How Musculoskeletal Function and the Autonomic Nervous System Relate to Visceral Pain in Women With and Without Dysmenorrhea (Painful Periods).

NCT07209566
View directory record Official record
Conditions
Dysmenorrhea, Dysmenorrhea Primary, Visceral Pain, Menstrual Pain
Interventions
Visceral Pain Stimulus
Diagnostic Test
Lead sponsor
Azusa Pacific University
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Azusa, California
Source: ClinicalTrials.gov public record
Updated Oct 6, 2025 · Synced Sep 10, 2026, 8:10 AM EDT
Recruiting Not applicable Interventional

Lean Beef as Part of a Healthy Meal Plan in Adolescents With Polycystic Ovary Syndrome (PCOS)/Polyendocrine Metabolic Ovarian Syndrome (PMOS)

NCT07780188
View directory record Official record
Conditions
PCOS (Polycystic Ovary Syndrome), Obese Adolescents, Overweight (Without Type 2 Diabetes) With Weight-related Comorbidities, Overweight Adolescents, Irregular Menstrual Cycle, Irregular Menstrual Cycles, Hirsutism, Hyperandrogenism
Interventions
Beef+
Other
Lead sponsor
Texas A&M University
Other
Eligibility
11 Years to 17 Years · Female only
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
College Station, Texas
Source: ClinicalTrials.gov public record
Updated Aug 20, 2026 · Synced Sep 10, 2026, 8:10 AM 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 15, 2025 · Synced Sep 10, 2026, 8:10 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Effects of Physical and Psychosocial Stress on Functional Hypothalamic Amenorrhea in Exercising Women

NCT05967819
View directory record Official record
Conditions
Amenorrhea Secondary
Interventions
Exercise Stress, Psychosocial Stress
Behavioral
Lead sponsor
University of Colorado, Colorado Springs
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Colorado Springs, Colorado
Source: ClinicalTrials.gov public record
Updated Jan 7, 2026 · Synced Sep 10, 2026, 8:10 AM EDT
Recruiting Not applicable Interventional

An Open-Label Study to Evaluate the Effect of Elix Cycle Balance & Elix Daily Harmony on Fibroid-related Symptoms

NCT07078682
View directory record Official record
Conditions
Uterine Fibroids, Leiomyoma, Menstrual Pain
Interventions
Elix Daily Harmony
Dietary Supplement
Lead sponsor
Zenchi, Inc.
Industry
Eligibility
20 Years to 45 Years · Female only
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated Sep 11, 2025 · Synced Sep 10, 2026, 8:10 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Quantifying Uterine Elastography in Menstruating Women

NCT06816381
View directory record Official record
Conditions
Infertility (IVF Patients), Infertility Assisted Reproductive Technology
Interventions
Shear wave elastography measurements
Device
Lead sponsor
Reproductive Medicine Associates of New Jersey
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Basking Ridge, New Jersey
Source: ClinicalTrials.gov public record
Updated Jun 2, 2026 · Synced Sep 10, 2026, 8:10 AM EDT
Completed No phase listed Observational

Glycemic Profiles And Insulin Delivery Across The Menstrual Cycle In Women With Type 1 Diabetes

NCT04665999
View directory record Official record
Conditions
Type 1 Diabetes Mellitus
Interventions
Continuous Glucose Monitor
Device
Lead sponsor
University of Virginia
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Apr 5, 2022 · Synced Sep 10, 2026, 8:10 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Menstrual Phase Endometrial Scratch in IUI Cycles

NCT04641598
View directory record Official record
Conditions
Fertility Disorders, Fertility Issues
Interventions
Endometrial Scratch, Sham procedure
Procedure
Lead sponsor
Carilion Clinic
Other
Eligibility
18 Years to 37 Years · Female only
Enrollment
57 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
Roanoke, Virginia
Source: ClinicalTrials.gov public record
Updated Aug 5, 2021 · Synced Sep 10, 2026, 8:10 AM EDT
Completed Phase 3 Interventional

Timing of Menstrual Cycle and Surgery in Treating Premenopausal Women With Stage I, Stage II, or Stage III Breast Cancer

NCT00005079
View directory record Official record
Conditions
Breast Cancer
Interventions
conventional surgery
Procedure
Lead sponsor
Jonsson Comprehensive Cancer Center
Other
Eligibility
Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2004
U.S. locations
2
States / cities
La Jolla, California • Los Angeles, California
Source: ClinicalTrials.gov public record
Updated May 14, 2013 · Synced Sep 10, 2026, 8:10 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Hormonal Causes of Menstrual-Related Mood Disorders

NCT00100360
View directory record Official record
Conditions
Mood Disorders, Depression
Interventions
Not listed
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
18 Years to 45 Years · Female only
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2016
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 4, 2018 · Synced Sep 10, 2026, 8:10 AM 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 1, 2017 · Synced Sep 10, 2026, 8:10 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Menstrual Phase and Smoking Cessation at a State Quitline

NCT03908320
View directory record Official record
Conditions
Menstrual Cycle
Interventions
Menstrual Cycle Timing, NRT Patch, Cessation Counseling
Other · Drug · Behavioral
Lead sponsor
University of Arizona
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
119 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Oct 18, 2020 · Synced Sep 10, 2026, 8:10 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Menstrual Effects On Mood Symptoms in Bipolar Disorder

NCT00472615
View directory record Official record
Conditions
Bipolar Disorder
Interventions
Not listed
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2008
U.S. locations
2
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 25, 2009 · Synced Sep 10, 2026, 8:10 AM EDT
Not listed Not applicable Interventional

Estradiol vs Lysteda in Treatment of Heavy Menstrual Bleeding

NCT01659008
View directory record Official record
Conditions
Menstrual Cycle and Uterine Bleeding Disorders
Interventions
Estradiol, Lysteda
Drug
Lead sponsor
Kay I Waud MD PhD
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
2
States / cities
Norfolk, Virginia
Source: ClinicalTrials.gov public record
Updated Feb 15, 2015 · Synced Sep 10, 2026, 8:10 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 10, 2026, 8:10 AM EDT
Recruiting Not applicable Interventional

Delivering tAN to Reduce HMB: The LUNA Study

NCT07326722
View directory record Official record
Conditions
Heavy Menstrual Bleeding
Interventions
Sparrow Link, Sparrow Link (Sham)
Device
Lead sponsor
Spark Biomedical, Inc.
Industry
Eligibility
14 Years to 45 Years · Female only
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 1, 2026 · Synced Sep 10, 2026, 8:10 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 10, 2026, 8:10 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Creatine Supplementation and Resistance Training in Premenopausal Females

NCT05745870
View directory record Official record
Conditions
Health Behavior
Interventions
Creatine Monohydrate Supplementation
Dietary Supplement
Lead sponsor
University of Idaho
Other
Eligibility
18 Years to 22 Years · Female only
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Moscow, Idaho
Source: ClinicalTrials.gov public record
Updated Sep 6, 2023 · Synced Sep 10, 2026, 8:10 AM 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 23, 2005 · Synced Sep 10, 2026, 8:10 AM 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 Jul 31, 2024 · Synced Sep 10, 2026, 8:10 AM EDT