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Showing 1–24 of 1,682 matching trials from the live ClinicalTrials.gov search.
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Active, not recruiting Phase 2 Interventional

A Study of CHeckpoint Inhibitors in Men With prOgressive Metastatic Castrate Resistant Prostate Cancer Characterized by a Mismatch Repair Deficiency or Biallelic CDK12 Inactivation

NCT04104893
View directory record Official record
Conditions
Metastatic Castration Resistant Prostate Cancer
Interventions
Pembrolizumab
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years and older · Male only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
13
States / cities
San Francisco, California • West Los Angeles, California • Washington D.C., District of Columbia + 10 more
Source: ClinicalTrials.gov public record
Updated Feb 26, 2026 · Synced Sep 6, 2026, 5:35 AM EDT
Completed Phase 1 Interventional

Use of an Experimental Radiopharmaceutical (131I-MIP-1095) in Men With Metastatic Castration-Resistant Prostate Cancer (mCRPC)

NCT03030885
View directory record Official record
Conditions
Prostate Cancer, Metastatic Castration-Resistant Prostate Cancer (mCRPC)
Interventions
131I-MIP-1095
Drug
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
18 Years and older · Male only
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 4, 2019 · Synced Sep 6, 2026, 5:35 AM EDT
Withdrawn Phase 2 Interventional

Insulin Resistance and Androgen Deprivation Therapy

NCT04995978
View directory record Official record
Conditions
Prostate Cancer, Insulin Resistance
Interventions
Pioglitazone 30 mg, placebo tablet
Drug
Lead sponsor
St. Louis University
Other
Eligibility
18 Years to 85 Years · Male only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jun 22, 2023 · Synced Sep 6, 2026, 5:35 AM EDT
Completed Phase 2 Interventional

Combination Chemotherapy Plus Filgrastim in Treating Patients With Stage IV Prostate Cancer That Has Not Responded to Hormone Therapy

NCT00005810
View directory record Official record
Conditions
Prostate Cancer
Interventions
filgrastim, carboplatin, docetaxel, estramustine phosphate sodium
Biological · Drug
Lead sponsor
Alliance for Clinical Trials in Oncology
Other
Eligibility
18 Years and older · Male only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2006
U.S. locations
7
States / cities
San Francisco, California • Chicago, Illinois • Baltimore, Maryland + 4 more
Source: ClinicalTrials.gov public record
Updated Jul 13, 2016 · Synced Sep 6, 2026, 5:35 AM EDT
Completed No phase listed Observational Results available

Priapism in Boys and Men With Sickle Cell Disease - Demographics, Characteristics and Prevalence

NCT00300235
View directory record Official record
Conditions
Priapism, Anemia, Sickle Cell
Interventions
Not listed
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
5 Years and older · Male only
Enrollment
1,464 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
27
States / cities
Mobile, Alabama • Davis, California • Oakland, California + 16 more
Source: ClinicalTrials.gov public record
Updated Jan 31, 2019 · Synced Sep 6, 2026, 5:35 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Developing an Online Mindfulness-based Intervention to Reduce Minority Stress and HIV Risk Among Young Adult MSM - Aim 3

NCT05855655
View directory record Official record
Conditions
Hiv, Minority Stress, Mental Health Wellness 1
Interventions
Mindfulness-Based Queer Resilience (MBQR)
Behavioral
Lead sponsor
Brown University
Other
Eligibility
18 Years to 34 Years · Male only
Enrollment
68 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Nov 23, 2025 · Synced Sep 6, 2026, 5:35 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Dietary Fiber on Gastrointestinal Function

NCT01495182
View directory record Official record
Conditions
Gastrointestinal Health
Interventions
Dietary fiber
Other
Lead sponsor
Ingredion Incorporated
Industry
Eligibility
18 Years to 54 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2012
U.S. locations
1
States / cities
Glen Ellyn, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 20, 2016 · Synced Sep 6, 2026, 5:35 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Blood Nitrate/Nitrite Concentrations Following Acute Ingestion of Resync in Men and Women

NCT04125940
View directory record Official record
Conditions
Healthy
Interventions
Resync, Resync + Collagen, Placebo
Dietary Supplement · Other
Lead sponsor
University of Memphis
Other
Eligibility
18 Years to 50 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Apr 27, 2021 · Synced Sep 6, 2026, 5:35 AM EDT
Not listed Phase 2 Interventional Accepts healthy volunteers

Prostate Cancer Screening and Dietary Heterocyclic Amines in African American Men

NCT00354497
View directory record Official record
Conditions
Prostate Cancer
Interventions
physiologic testing, study of socioeconomic and demographic variables, evaluation of cancer risk factors, mutation carrier screening, study of high risk factors
Other · Procedure
Lead sponsor
Lawrence Livermore National Laboratory at University of California
Other
Eligibility
50 Years to 70 Years · Male only
Enrollment
800 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2002
U.S. locations
2
States / cities
Livermore, California • Oakland, California
Source: ClinicalTrials.gov public record
Updated Sep 19, 2013 · Synced Sep 6, 2026, 5:35 AM EDT
Completed Not applicable Interventional

A Study to Evaluate the Effects of Different Methods of Birth Control on the Drug Actions of Zidovudine (an Anti-HIV Drug) in HIV-Positive Women and to Compare Zidovudine Metabolism in Men and Women

NCT00000897
View directory record Official record
Conditions
HIV Infections
Interventions
Zidovudine
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 45 Years
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
6
States / cities
San Francisco, California • Jacksonville, Florida • Albany, New York + 3 more
Source: ClinicalTrials.gov public record
Updated Mar 1, 2011 · Synced Sep 6, 2026, 5:35 AM EDT
Withdrawn Not applicable Interventional

Carbon-11 Acetate and Fluorine F 18 Sodium Fluoride PET as a Biomarker of Treatment Response in Patients With Hormone Resistant Metastatic Prostate Cancer

NCT02169063
View directory record Official record
Conditions
Hormone-resistant Prostate Cancer, Recurrent Prostate Cancer, Stage IV Prostate Cancer
Interventions
carbon-11 acetate, fluorine F 18 sodium fluoride, positron emission tomography, laboratory biomarker analysis
Radiation · Procedure · Other
Lead sponsor
University of Washington
Other
Eligibility
18 Years and older · Male only
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2015
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Aug 30, 2016 · Synced Sep 6, 2026, 5:35 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

txt2protect: Using Text Messaging to Increase HPV Vaccination Among Young Sexual Minority Men

NCT02994108
View directory record Official record
Conditions
Human Papillomavirus
Interventions
txt2protect, Sexual Health Control
Behavioral
Lead sponsor
Northwestern University
Other
Eligibility
18 Years to 25 Years · Male only
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 19, 2020 · Synced Sep 6, 2026, 5:35 AM EDT
Completed Not applicable Interventional

Achilles Tendinopathy, Treatment With eXercise Comparing Men and Women

NCT03523325
View directory record Official record
Conditions
Achilles Tendinopathy, Achilles Tendonitis, Achilles Tendon Pain, Achilles Degeneration, Achillodynia
Interventions
Exercise treatment
Other
Lead sponsor
University of Delaware
Other
Eligibility
18 Years to 65 Years
Enrollment
182 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
1
States / cities
Newark, Delaware
Source: ClinicalTrials.gov public record
Updated Jun 26, 2024 · Synced Sep 6, 2026, 5:35 AM EDT
Active, not recruiting Phase 4 Interventional

PYLARIFY® PET/CT or PET/MRI in Men With Favorable Intermediate Risk (FIR) Prostate Cancer

NCT06074510
View directory record Official record
Conditions
Prostate Cancer
Interventions
Piflufolastat F 18 Intravenous Solution [PYLARIFY]
Drug
Lead sponsor
Lantheus Medical Imaging
Industry
Eligibility
18 Years and older · Male only
Enrollment
274 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
14
States / cities
Birmingham, Alabama • Irvine, California • Los Angeles, California + 11 more
Source: ClinicalTrials.gov public record
Updated Sep 10, 2025 · Synced Sep 6, 2026, 5:35 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Evaluating a Structural and Behavioral HIV Risk Reduction Program for Black Men

NCT01694121
View directory record Official record
Conditions
HIV
Interventions
MEN Count, Comparison
Behavioral
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 40 Years · Male only
Enrollment
455 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2018
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Dec 27, 2018 · Synced Sep 6, 2026, 5:35 AM EDT
Completed Phase 2 Interventional Results available

Abiraterone Race in Metastatic Castrate-resistant Prostate Cancer

NCT01940276
View directory record Official record
Conditions
Prostate Cancer
Interventions
Abiraterone acetate, Prednisone
Drug
Lead sponsor
Duke University
Other
Eligibility
18 Years and older · Male only
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2019
U.S. locations
14
States / cities
Birmingham, Alabama • New Orleans, Louisiana • Detroit, Michigan + 11 more
Source: ClinicalTrials.gov public record
Updated Dec 8, 2020 · Synced Sep 6, 2026, 5:35 AM EDT
Completed Phase 2 Interventional Results available

Human Papillomavirus Vaccine Therapy in Treating Men With HIV-1 Infection

NCT00513526
View directory record Official record
Conditions
Infection, Precancerous Condition
Interventions
Gardasil
Biological
Lead sponsor
AIDS Malignancy Consortium
Network
Eligibility
18 Years and older · Male only
Enrollment
112 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
8
States / cities
Los Angeles, California • San Francisco, California • Denver, Colorado + 4 more
Source: ClinicalTrials.gov public record
Updated Nov 13, 2023 · Synced Sep 6, 2026, 5:35 AM EDT
Completed Phase 4 Interventional Results available

Antiretroviral Therapy (ART) Persistence in Different Body Compartments in HIV Negative MSM

NCT04039217
View directory record Official record
Conditions
ART, HIV
Interventions
Biktarvy
Drug
Lead sponsor
Emory University
Other
Eligibility
18 Years to 49 Years · Male only
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Feb 21, 2022 · Synced Sep 6, 2026, 5:35 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Replacing Energy From Solid Fats and Added Sugars (SoFAS) With Avocado

NCT04990817
View directory record Official record
Conditions
Elevated Triglycerides, Hypertriglyceridemia
Interventions
Average American Diet With SoFAS Replaced With Avocado, Average American Diet
Other
Lead sponsor
Midwest Center for Metabolic and Cardiovascular Research
Other
Eligibility
21 Years to 74 Years
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
2
States / cities
Chicago, Illinois • Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated May 20, 2024 · Synced Sep 6, 2026, 5:35 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Exploring the Effects of Strength Training on Depressive Symptoms and Cardiovascular Risk in Black Men

NCT03107039
View directory record Official record
Conditions
Depressive Symptoms
Interventions
Exercise, Health Education
Behavioral
Lead sponsor
Teachers College, Columbia University
Other
Eligibility
21 Years and older · Male only
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2020
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 22, 2020 · Synced Sep 6, 2026, 5:35 AM EDT
Completed Phase 3 Interventional Results available

Ambulatory Blood Pressure Monitoring in Oral Testosterone Undecanoate (TU, LPCN 1021) Treated Hypogonadal Men

NCT03868059
View directory record Official record
Conditions
Hypogonadism, Male
Interventions
LPCN 1021
Drug
Lead sponsor
Lipocine Inc.
Industry
Eligibility
18 Years to 80 Years · Male only
Enrollment
138 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
16
States / cities
Birmingham, Alabama • Aventura, Florida • Coral Gables, Florida + 13 more
Source: ClinicalTrials.gov public record
Updated Jun 9, 2021 · Synced Sep 6, 2026, 5:35 AM EDT
Completed Not applicable Interventional

EMPOWER Men to Reduce Weight and Inhibit Prostate Cancer Progression

NCT04266431
View directory record Official record
Conditions
Prostatic Neoplasm
Interventions
EMPOWER
Behavioral
Lead sponsor
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Other
Eligibility
18 Years and older · Male only
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 11, 2025 · Synced Sep 6, 2026, 5:35 AM EDT
Terminated Phase 2 Interventional Results available

Effects of TAK-448 in Middle-aged and Older Men With Low Testosterone

NCT02381288
View directory record Official record
Conditions
Low Testosterone
Interventions
TAK-448, TAK-448 Placebo
Drug
Lead sponsor
Takeda
Industry
Eligibility
60 Years and older · Male only
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 16, 2017 · Synced Sep 6, 2026, 5:35 AM EDT
Terminated Phase 2 Interventional Results available

Soy Derivatives for Control of Hot Flashes in Men on Androgen Deprivation Therapy

NCT00594620
View directory record Official record
Conditions
Prostate Cancer
Interventions
Flav-ein capsules, Placebo
Dietary Supplement · Drug
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years and older · Male only
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2010
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Feb 13, 2022 · Synced Sep 6, 2026, 5:35 AM EDT