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ClinicalTrials.gov public records Last synced May 21, 2026, 10:52 PM EDT

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

Showing 1–18 of 18 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Transsexualism Clear all
Recruiting No phase listed Observational
View directory record Official record
Conditions
Transgenderism, Gender Dysphoria, Insulin Sensitivity
Interventions
Not listed
Lead sponsor
University of Colorado, Denver
Other
Eligibility
13 Years to 16 Years
Enrollment
90 participants
Timeline
2021 – 2026
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jun 9, 2025 · Synced May 21, 2026, 10:52 PM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Transgender, Transgenderism
Interventions
Not listed
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
12 Years to 30 Years
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2027
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 2, 2025 · Synced May 21, 2026, 10:52 PM EDT
Terminated Early Phase 1 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Transgenderism, Clotting Disorder
Interventions
Estradiol Tablets, Transdermal patch
Drug
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
18 Years and older · Male only
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Dec 20, 2022 · Synced May 21, 2026, 10:52 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Transgenderism, Stigma, Social
Interventions
IDEAS (Identity Evolution and Sharing) Performance
Other
Lead sponsor
Indiana University
Other
Eligibility
18 Years and older
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Aug 16, 2020 · Synced May 21, 2026, 10:52 PM EDT
Not yet recruiting Not applicable Interventional
View directory record Official record
Conditions
Alcohol Use, Unspecified, Relationship, Social, Depression, Anxiety, Transgenderism
Interventions
Whole Selves
Behavioral
Lead sponsor
Boston University
Other
Eligibility
18 Years to 30 Years
Enrollment
107 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 27, 2026 · Synced May 21, 2026, 10:52 PM EDT
Completed No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Family Relations, Nutrition Disorders, Health Behavior, Transgenderism
Interventions
Survey
Other
Lead sponsor
St. Louis University
Other
Eligibility
12 Years and older
Enrollment
714 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Mar 8, 2022 · Synced May 21, 2026, 10:52 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Transgenderism
Interventions
Transdermal patch, Pro-thrombotic markers, Metabolic markers, Hormone Profile, Daily Sublingual Tablet, BID Sublingual Tablet, Spironolactone
Drug · Diagnostic Test
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 30 Years · Male only
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Nov 25, 2024 · Synced May 21, 2026, 10:52 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Transgenderism, Depression
Interventions
Short videos
Behavioral
Lead sponsor
Yale University
Other
Eligibility
14 Years to 18 Years
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
2
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated May 2, 2022 · Synced May 21, 2026, 10:52 PM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Transgenderism, Reproductive Issues
Interventions
Testosterone Cypionate 50 milligrams per millileter (mg/mL) Injectable Solution
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Jan 14, 2026 · Synced May 21, 2026, 10:52 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Transsexualism, Surgery, Sex Behavior, Erectile Dysfunction
Interventions
Elator
Device
Lead sponsor
Boston Children's Hospital
Other
Eligibility
18 Years to 64 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 20, 2022 · Synced May 21, 2026, 10:52 PM EDT
Terminated Phase 4 Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Transgenderism, Reproductive Issues
Interventions
Testosterone Cypionate 50 MG/ML Injectable Solution
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
2 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Jul 21, 2025 · Synced May 21, 2026, 10:52 PM EDT
Recruiting No phase listed Observational
View directory record Official record
Conditions
Transgenderism, Insulin Sensitivity/Resistance, Endothelial Dysfunction, Vascular Stiffness
Interventions
Not listed
Lead sponsor
University of Colorado, Denver
Other
Eligibility
9 Years to 14 Years · Male only
Enrollment
30 participants
Timeline
2020 – 2026
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jun 9, 2025 · Synced May 21, 2026, 10:52 PM EDT
Terminated No phase listed Observational
View directory record Official record
Conditions
Gender Incongruence, Transgenderism
Interventions
testosterone cypionate, Estradiol Valerate
Drug
Lead sponsor
St. Louis University
Other
Eligibility
18 Years to 50 Years
Enrollment
4 participants
Timeline
2020 – 2023
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jan 7, 2024 · Synced May 21, 2026, 10:52 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available
View directory record Official record
Conditions
Hiv, Transgenderism
Interventions
Microeconomic Intervention
Behavioral
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
4 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Aug 3, 2023 · Synced May 21, 2026, 10:52 PM EDT
Not listed No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
HIV/AIDS, STI, Gender Dysphoria, Transsexualism, Gender Identity, Depression, Anxiety
Interventions
Medical gender affirmation
Other
Lead sponsor
Fenway Community Health
Other
Eligibility
18 Years and older
Enrollment
4,500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 17, 2020 · Synced May 21, 2026, 10:52 PM EDT
Enrolling by invitation Not applicable Interventional
View directory record Official record
Conditions
Gender Dysphoria, Gender Dysphoria, Adult, Gender Incongruence, Transgenderism, Transsexualism, Transgender Persons, Phalloplasty
Interventions
MaPGAS Decision Aid
Behavioral
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
18 Years and older · Female only
Enrollment
140 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
2
States / cities
Hanover, New Hampshire • Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Mar 22, 2026 · Synced May 21, 2026, 10:52 PM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Transgenderism, Kidney Diseases, Kidney Injury
Interventions
p-aminohippurate clearance study, Iohexol infusion
Diagnostic Test
Lead sponsor
University of Colorado, Denver
Other
Eligibility
17 Years to 30 Years
Enrollment
22 participants
Timeline
2021 – 2023
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated May 2, 2024 · Synced May 21, 2026, 10:52 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Transgenderism, HIV Infections
Interventions
Transgender men's perspectives on HIV risk and HIV prevention interventions
Behavioral
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older · Female only
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Nov 8, 2023 · Synced May 21, 2026, 10:52 PM EDT