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ClinicalTrials.gov public records Last synced Oct 21, 2026, 5:55 AM EDT

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Showing 193–216 of 12,734 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Male Clear all
Completed Not applicable Interventional

Effect of Walnuts on Sperm Parameters and Male Fertility

NCT01954498
View directory record Official record
Conditions
Oligozoospermia, Asthenozoospermia, Teratozoospermia, Fertility
Interventions
Walnuts, OTC multivitamin
Dietary Supplement
Lead sponsor
University of California, Los Angeles
Other
Eligibility
21 Years and older · Male only
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2020
U.S. locations
2
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Mar 13, 2026 · Synced Oct 21, 2026, 5:55 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Collection of Blood, Bone Marrow, Tumor, or Tissue Samples From Patients With Cancer to Study Drug Resistance

NCT00026663
View directory record Official record
Conditions
Renal Cell Carcinoma, Lung Carcinoma, Cervical Carcinoma
Interventions
Not listed
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
86 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2000 – 2024
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2024 · Synced Oct 21, 2026, 5:55 AM EDT
Completed Not applicable Interventional

Ureteral Stent Placement After Ureteroscopy for Renal Stones: A Randomized Controlled Trial

NCT03855787
View directory record Official record
Conditions
Kidney Calculi
Interventions
Ureteroscopy
Procedure
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years and older
Enrollment
103 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
6
States / cities
Los Angeles, California • Sacramento, California • San Diego, California + 3 more
Source: ClinicalTrials.gov public record
Updated May 29, 2026 · Synced Oct 21, 2026, 5:55 AM EDT
Completed Not applicable Interventional

Application-based Perioperative Management of the Radical Cystectomy Patient

NCT02942121
View directory record Official record
Conditions
Bladder Cancer
Interventions
LifeScience Technologies application
Other
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Feb 1, 2019 · Synced Oct 21, 2026, 5:55 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study of the Effects of Itraconazole on the Plasma Levels of Nemtabrutinib (MK-1026-013)

NCT06688045
View directory record Official record
Conditions
Healthy
Interventions
Nemtabrutinib, Itraconazole
Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years to 45 Years · Male only
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Honolulu, Hawaii
Source: ClinicalTrials.gov public record
Updated Nov 14, 2024 · Synced Oct 21, 2026, 5:55 AM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Adverse Childhood Experiences in Urogynecologic Patients

NCT03480477
View directory record Official record
Conditions
Pelvic Floor Disorders, Interstitial Cystitis, Urinary Incontinence
Interventions
ACE questionnaire
Other
Lead sponsor
University of New Mexico
Other
Eligibility
18 Years and older · Female only
Enrollment
356 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated Feb 9, 2024 · Synced Oct 21, 2026, 5:55 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Study to Evaluate the Pharmacokinetics, Safety and Immunogenicity of BIIB800 Subcutaneously (SC) Compared to Actemra® in Healthy Male Participants

NCT06262477
View directory record Official record
Conditions
Healthy Volunteer
Interventions
BIIB800, Actemra
Drug
Lead sponsor
Biogen
Industry
Eligibility
18 Years to 55 Years · Male only
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
3
States / cities
Daytona Beach, Florida • Dallas, Texas • Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 6, 2025 · Synced Oct 21, 2026, 5:55 AM EDT
Terminated Phase 4 Interventional Results available

Effect of Vaginal Estrogen on Asymptomatic Microhematuria (AMH)

NCT02213757
View directory record Official record
Conditions
Microscopic Hematuria
Interventions
Premarin vaginal estrogen cream, Placebo vaginal cream
Drug
Lead sponsor
Medstar Health Research Institute
Other
Eligibility
Female only
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Mar 15, 2023 · Synced Oct 21, 2026, 5:55 AM EDT
Completed Phase 1 Interventional

A Study to Assess the Pharmacodynamics of VK0214 in Male Subjects With AMN

NCT04973657
View directory record Official record
Conditions
Adrenomyeloneuropathy Form (AMN) of X-linked Adrenoleukodystrophy (X-ALD)
Interventions
VK0214, Placebo
Drug · Other
Lead sponsor
Viking Therapeutics, Inc.
Industry
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
4
States / cities
Palo Alto, California • Gainesville, Florida • Baltimore, Maryland + 1 more
Source: ClinicalTrials.gov public record
Updated Feb 17, 2025 · Synced Oct 21, 2026, 5:55 AM EDT
Withdrawn Not applicable Interventional

Virtual Prostate Biopsy Protocol for Patients on Active Surveillance and at Risk of Prostate Cancer

NCT03823001
View directory record Official record
Conditions
Prostate Cancer
Interventions
virtual biopsy (VB) monitoring protocol
Diagnostic Test
Lead sponsor
Case Comprehensive Cancer Center
Other
Eligibility
Male only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated May 20, 2022 · Synced Oct 21, 2026, 5:55 AM EDT
Completed Phase 3 Interventional

Prevention of Osteoporosis in Men With Prostate Cancer on Androgen Deprivation Therapy (POP Study)

NCT00177619
View directory record Official record
Conditions
Prostatic Neoplasms
Interventions
Alendronate
Drug
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older · Male only
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2005
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 11, 2014 · Synced Oct 21, 2026, 5:55 AM EDT
Completed Phase 3 Interventional

Depression Related Improvement With Vardenafil for Erectile Response

NCT00661219
View directory record Official record
Conditions
Erectile Dysfunction, Depression
Interventions
Levitra (Vardenafil, BAY38-9456), Placebo
Drug
Lead sponsor
Bayer
Industry
Eligibility
18 Years and older · Male only
Enrollment
280 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2003
U.S. locations
15
States / cities
Huntsville, Alabama • Anchorage, Alaska • Beverly Hills, California + 11 more
Source: ClinicalTrials.gov public record
Updated Dec 23, 2014 · Synced Oct 21, 2026, 5:55 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Cycled Testosterone Replacement Study

NCT00957528
View directory record Official record
Conditions
Hypogonadism
Interventions
Testosterone, Placebo
Drug
Lead sponsor
The University of Texas Medical Branch, Galveston
Other
Eligibility
60 Years to 85 Years · Male only
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2008
U.S. locations
1
States / cities
Galveston, Texas
Source: ClinicalTrials.gov public record
Updated Sep 10, 2012 · Synced Oct 21, 2026, 5:55 AM EDT
Active, not recruiting Early Phase 1 Interventional

An Investigational Scan (MRI With Dixon Based Sequences) in Detecting Prostate Cancer

NCT05047965
View directory record Official record
Conditions
Prostate Carcinoma
Interventions
Dixon MRI, Magnetic Resonance Imaging
Procedure
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older · Male only
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2027
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Oct 6, 2026 · Synced Oct 21, 2026, 5:55 AM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers Results available

A Renal Impairment Study for PF-06651600

NCT04037865
View directory record Official record
Conditions
Renal Impairment
Interventions
PF-06651600
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 75 Years
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
3
States / cities
Miami, Florida • Saint Paul, Minnesota
Source: ClinicalTrials.gov public record
Updated May 18, 2021 · Synced Oct 21, 2026, 5:55 AM EDT
Not listed No phase listed Observational

Cure Cystinosis International Registry

NCT01327807
View directory record Official record
Conditions
Cystinosis, Nephropathic Cystinosis, Renal Fanconi Syndrome
Interventions
Not listed
Lead sponsor
Cystinosis Research Foundation
Other
Eligibility
Not listed
Enrollment
750 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2022
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Mar 12, 2014 · Synced Oct 21, 2026, 5:55 AM EDT
Completed Not applicable Interventional

Fractional CO2 Laser Therapy for Survivors of Breast Malignancies

NCT03307044
View directory record Official record
Conditions
Breast Carcinoma, Cancer Survivor, Cervical Carcinoma, Dyspareunia, Vaginal Dryness
Interventions
Laser Therapy, Questionnaire Administration
Procedure · Other
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
Female only
Enrollment
66 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 20, 2023 · Synced Oct 21, 2026, 5:55 AM EDT
Completed Phase 1 Interventional

Phase 1, First-in-human, Dose-finding and Expansion Study to Evaluate XmAb®808 in Combination With Pembrolizumab in Advanced Solid Tumors

NCT05585034
View directory record Official record
Conditions
Head and Neck Squamous Cell Carcinoma, Melanoma Excluding Uveal Melanoma, Non-small Cell Lung Cancer, Squamous or Non-squamous, Urothelial Carcinoma, Renal Cell Carcinoma, Clear Cell, Castration-resistant Prostate Cancer, Ovarian Cancer, Epithelial, TNBC - Triple-Negative Breast Cancer, Colorectal Cancer
Interventions
XmAb®808, Keytruda® (pembrolizumab)
Biological
Lead sponsor
Xencor, Inc.
Industry
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
12
States / cities
Los Angeles, California • Denver, Colorado • Sarasota, Florida + 9 more
Source: ClinicalTrials.gov public record
Updated Aug 7, 2025 · Synced Oct 21, 2026, 5:55 AM EDT
Completed No phase listed Observational

Incidence of Second Primary Malignancies in Castration-Resistant Prostate Cancer: An Observational Retrospective Cohort Study in the US

NCT02788409
View directory record Official record
Conditions
Prostatic Neoplasms
Interventions
Not applicable for study
Other
Lead sponsor
Bayer
Industry
Eligibility
65 Years and older · Male only
Enrollment
2,234 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Waltham, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 8, 2019 · Synced Oct 21, 2026, 5:55 AM EDT
Completed No phase listed Observational

Asymptomatic Renal Calculi in Recurrent Urinary Tract Infections

NCT04495699
View directory record Official record
Conditions
Urinary Tract Infections, Kidney Stone
Interventions
None - observational
Other
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years and older
Enrollment
94 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
5
States / cities
Phoenix, Arizona • San Diego, California • Boston, Massachusetts + 2 more
Source: ClinicalTrials.gov public record
Updated Oct 21, 2025 · Synced Oct 21, 2026, 5:55 AM EDT
Recruiting Phase 1 Interventional

A Study to Learn About the Study Medicine Called PF-08046876 in People With Advanced Solid Tumors

NCT07090499
View directory record Official record
Conditions
Advanced/Metastatic Solid Tumors, Bladder Cancer, Urothelial Carcinoma, Advanced Non-Small Cell Lung Cancer, Carcinoma, Non Small Cell Lung, Carcinoma, Squamous Cell of Head and Neck, Head and Neck Cancer, Esophageal Cancer, Gastroesophageal Junction Adenocarcinoma, Esophageal Squamous Cell Carcinoma, Esophageal Adenocarcinoma, Pancreatic Adenocarcinoma, Pancreatic Cancer
Interventions
PF-08046876, Pembrolizumab, Cisplatin, Carboplatin
Drug · Combination Product
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
540 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
21
States / cities
Duarte, California • Irvine, California • Los Angeles, California + 11 more
Source: ClinicalTrials.gov public record
Updated Oct 13, 2026 · Synced Oct 21, 2026, 5:55 AM EDT
Not listed Phase 2 Interventional

Evaluation of IPI-549 Combined With Front-line Treatments in Pts. With Triple-Negative Breast Cancer or Renal Cell Carcinoma

NCT03961698
View directory record Official record
Conditions
Breast Cancer, Renal Cell Carcinoma
Interventions
IPI-549 (eganelisib), Atezolizumab, nab-paclitaxel, Bevacizumab
Drug
Lead sponsor
Infinity Pharmaceuticals, Inc.
Industry
Eligibility
18 Years and older
Enrollment
91 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
24
States / cities
Chandler, Arizona • Tucson, Arizona • Fullerton, California + 20 more
Source: ClinicalTrials.gov public record
Updated Aug 14, 2023 · Synced Oct 21, 2026, 5:55 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Effect of Sit Less, Interact, Move More (SLIMM) Regimen on Patients With Chronic Kidney Disease (CKD)

NCT02924298
View directory record Official record
Conditions
Chronic Kidney Disease, End Stage Renal Disease
Interventions
SLIMM
Behavioral
Lead sponsor
Srinvasan Beddhu
Other
Eligibility
18 Years to 95 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2016
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Oct 5, 2016 · Synced Oct 21, 2026, 5:55 AM EDT
Not listed Not applicable Interventional

MR/TRUS Fusion Guided Prostate Biopsy

NCT04026763
View directory record Official record
Conditions
Prostate Disease, Elevated Prostate Specific Antigen, Family History of Prostate Cancer, Positive Digital Rectal Exam
Interventions
prostate biopsy, MR US Fusion Guided Prostate Biopsy, MR/TRUS Fusion Guided Prostate Biopsy
Procedure · Device
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
18 Years and older · Male only
Enrollment
520 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 19, 2019 · Synced Oct 21, 2026, 5:55 AM EDT