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ClinicalTrials.gov public records Last synced Sep 30, 2026, 3:04 PM EDT

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Showing 73–96 of 247 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Healthy Adult Male Clear all
Completed Phase 1 Interventional Accepts healthy volunteers

Study to Test Safety, Tolerability and Blood Levels of GSK971086 After 1 Dose & 7 Days of Dosing in Healthy Adult Males

NCT00540553
View directory record Official record
Conditions
Healthy Subjects, Androgen Deficiency
Interventions
placebo, GSK971086
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 50 Years · Male only
Enrollment
126 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
Evansville, Indiana
Source: ClinicalTrials.gov public record
Updated Mar 19, 2012 · Synced Sep 30, 2026, 3:04 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Positron Emission Tomography Occupancy Study Using Ligand [11C]AS2471907 and Following Oral Dosing of ASP3662

NCT02194491
View directory record Official record
Conditions
Pharmacokinetics of ASP3662, Displacement of Radiotracer, Healthy Volunteers
Interventions
[11C]AS2471907, Positron Emission Tomography (PET), ASP3662
Other · Radiation · Drug
Lead sponsor
Astellas Pharma Global Development, Inc.
Industry
Eligibility
18 Years to 55 Years · Male only
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jun 28, 2016 · Synced Sep 30, 2026, 3:04 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Brain Imaging Study of Adults With Autism Spectrum Disorders

NCT01093768
View directory record Official record
Conditions
Autism Spectrum Disorders
Interventions
Oxytocin, Vasopressin
Drug
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
18 Years to 40 Years
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2013
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 17, 2019 · Synced Sep 30, 2026, 3:04 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study of the Pharmacokinetics of ASP1941 and the Effect on Glucose Concentrations in Male and Female Young and Elderly Healthy Adults

NCT01678287
View directory record Official record
Conditions
Healthy Volunteers, Pharmacokinetics of ASP1941
Interventions
ASP1941, Placebo
Drug
Lead sponsor
Astellas Pharma Global Development, Inc.
Industry
Eligibility
18 Years and older
Enrollment
65 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
Miramar, Florida
Source: ClinicalTrials.gov public record
Updated Sep 5, 2012 · Synced Sep 30, 2026, 3:04 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Human Mass Balance Study of HMS5552 in Healthy Subjects

NCT03158506
View directory record Official record
Conditions
Healthy Subject
Interventions
HMS5552
Drug
Lead sponsor
Hua Medicine Limited
Industry
Eligibility
19 Years to 55 Years · Male only
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Dec 31, 2018 · Synced Sep 30, 2026, 3:04 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study of Bemnifosbuvir/Ruzasvir as a Fixed-dose Combination in Subjects With Normal or Severely Impaired Renal or Hepatic Function

NCT06911320
View directory record Official record
Conditions
Healthy Volunteer Study, Hepatic Impairment, Renal Impairment
Interventions
Bemnifosbuvir (BEM)/Ruzasvir (RZR) as a fixed-dose combination
Drug
Lead sponsor
Atea Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 80 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
2
States / cities
Orlando, Florida • Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Jul 31, 2026 · Synced Sep 30, 2026, 3:04 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Single Dose Study of [14C]-IDV184001AN ([14C]-IDV184001) in Healthy Adult Male Participants

NCT05974046
View directory record Official record
Conditions
Opioid Use Disorder
Interventions
[14C]IDV184001AN
Drug
Lead sponsor
Indivior Inc.
Industry
Eligibility
19 Years to 55 Years · Male only
Enrollment
7 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Feb 13, 2025 · Synced Sep 30, 2026, 3:04 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Metabolism, Excretion, and Mass Balance Study of Quemliclustat in Healthy Adult Participants (ARC-24)

NCT07364214
View directory record Official record
Conditions
Healthy Participants
Interventions
Quemliclustat
Drug
Lead sponsor
Arcus Biosciences, Inc.
Industry
Eligibility
19 Years to 55 Years · Male only
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated May 1, 2026 · Synced Sep 30, 2026, 3:04 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Single-dose AME Study With [14C]AR882 in Healthy Male Subjects

NCT04508426
View directory record Official record
Conditions
Healthy Volunteers
Interventions
[14C]AR882
Drug
Lead sponsor
Arthrosi Therapeutics
Industry
Eligibility
18 Years to 55 Years · Male only
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Nov 16, 2020 · Synced Sep 30, 2026, 3:04 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Absorption, Metabolism, Excretion, and Mass Balance Study of [14C]-VVZ-149 in Healthy Adult Male Subjects

NCT04415645
View directory record Official record
Conditions
Healthy Adult Male
Interventions
[14C]-VVZ-149
Drug
Lead sponsor
Vivozon, Inc.
Industry
Eligibility
19 Years to 55 Years · Male only
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Jun 4, 2020 · Synced Sep 30, 2026, 3:04 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety Study of Four Chimera Cytomegalovirus (CMV) Vaccines in Healthy Adult Males 30-50 Years of Age

NCT01195571
View directory record Official record
Conditions
Cytomegalovirus
Interventions
cmv vaccine
Biological
Lead sponsor
CMV Research Foundation
Other
Eligibility
30 Years to 50 Years · Male only
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2014
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated May 19, 2015 · Synced Sep 30, 2026, 3:04 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Learn About Effect of Sisunatovir in Healthy Adult Male Participants

NCT05873764
View directory record Official record
Conditions
Respiratory Syncytial Virus Infections
Interventions
200 mg RV521/78 µCi [ 14C]-RV521.
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 55 Years · Male only
Enrollment
9 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated May 16, 2024 · Synced Sep 30, 2026, 3:04 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Pharmacokinetics and Safety of Methylphenidate HCl in Healthy Japanese Adult Male Volunteers

NCT01202734
View directory record Official record
Conditions
Healthy
Interventions
Methylphenidate HCl
Drug
Lead sponsor
Johnson & Johnson Pharmaceutical Research & Development, L.L.C.
Industry
Eligibility
20 Years to 35 Years · Male only
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Cypress, California
Source: ClinicalTrials.gov public record
Updated May 16, 2014 · Synced Sep 30, 2026, 3:04 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Drug-Drug Interaction Study of Carbamazepine and Opevesostat (MK-5684) in Healthy Adult Male Participants (MK-5684-012)

NCT06633419
View directory record Official record
Conditions
Healthy
Interventions
Opevesostat, Prednisone, Fludrocortisone acetate, Carbamazepine
Drug
Lead sponsor
Merck Sharp & Dohme LLC
Industry
Eligibility
18 Years to 55 Years · Male only
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated May 25, 2025 · Synced Sep 30, 2026, 3:04 PM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

A Study of ORX489 in Healthy Adult Participants, Aged 18 to 60 Years

NCT07413666
View directory record Official record
Conditions
Healthy Adult Male and Female Volunteers
Interventions
ORX489 Tablets, Placebo Tablets
Drug · Other
Lead sponsor
Centessa Pharmaceuticals (UK) Limited
Industry
Eligibility
18 Years to 60 Years
Enrollment
212 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Feb 25, 2026 · Synced Sep 30, 2026, 3:04 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Bioequivalence Study of Two Finasteride 5 mg Tablet Formulations Under Non-Fasting Conditions

NCT01264302
View directory record Official record
Conditions
Healthy
Interventions
Finasteride
Drug
Lead sponsor
Dr. Reddy's Laboratories Limited
Industry
Eligibility
18 Years to 65 Years · Male only
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006
U.S. locations
1
States / cities
Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated Dec 21, 2010 · Synced Sep 30, 2026, 3:04 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Lesinurad Tablet Relative Bioavailability

NCT01986556
View directory record Official record
Conditions
Healthy
Interventions
Lesinurad 400 mg (Site 1), Lesinurad 400 mg (Site 2, Lot A), Lesinurad 400 mg (Site 2, Lot B)
Drug
Lead sponsor
Ardea Biosciences, Inc.
Industry
Eligibility
18 Years to 65 Years · Male only
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Glendale, California
Source: ClinicalTrials.gov public record
Updated Sep 22, 2014 · Synced Sep 30, 2026, 3:04 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study Evaluating Pharmacokinetics and Mass Balance of [14C]-CTP-543 in Healthy Adult Male Volunteers

NCT04092712
View directory record Official record
Conditions
Healthy Volunteers
Interventions
[14C]-CTP-543
Drug
Lead sponsor
Concert Pharmaceuticals
Industry
Eligibility
19 Years to 55 Years · Male only
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Sep 25, 2019 · Synced Sep 30, 2026, 3:04 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Radiolabel ADME (Absorption, Distribution, Metabolism, and Excretion) Study Of [14C] PF-00868554 In Healthy Adult Male Subjects

NCT00823745
View directory record Official record
Conditions
HCV
Interventions
[14C]-PF-00868554
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 45 Years · Male only
Enrollment
7 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
1
States / cities
Tacoma, Washington
Source: ClinicalTrials.gov public record
Updated Mar 9, 2009 · Synced Sep 30, 2026, 3:04 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Investigators Conducted a Study to Examine the Impact of Wild Ginseng Extract (WG) on Exercise Performance, Cognitive Function, and Fatigue Recovery Among Twelve Healthy Adult Males

NCT06679725
View directory record Official record
Conditions
Healthy
Interventions
Wild ginseng extract, Placebo
Dietary Supplement
Lead sponsor
Texas A&M University San Antonio
Other
Eligibility
18 Years to 30 Years · Male only
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Nov 7, 2024 · Synced Sep 30, 2026, 3:04 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Pharmacokinetic and Mass Balance Study of Orally Administered [14C]-AZD4205 in Healthy Adult Male Volunteers

NCT04225208
View directory record Official record
Conditions
Healthy Volunteers
Interventions
[14C]-AZD4205, single 50 mg oral dose administrated on day 1
Drug
Lead sponsor
Dizal Pharmaceuticals
Industry
Eligibility
18 Years to 65 Years · Male only
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 24, 2020 · Synced Sep 30, 2026, 3:04 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Assess the Mass Balance of Oral ABBV-1354 in Healthy Adult Male Participants

NCT07219017
View directory record Official record
Conditions
Healthy Volunteer
Interventions
ABBV-1354
Drug
Lead sponsor
AbbVie
Industry
Eligibility
18 Years to 60 Years · Male only
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jan 5, 2026 · Synced Sep 30, 2026, 3:04 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Study to Assess the Absorption, Metabolism, Excretion, and Mass Balance of CT1812 in Healthy Adult Male Subjects

NCT05225389
View directory record Official record
Conditions
Alzheimer Disease
Interventions
300 mg [C14] CT1812
Drug
Lead sponsor
Cognition Therapeutics
Industry
Eligibility
19 Years to 55 Years · Male only
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Jul 21, 2023 · Synced Sep 30, 2026, 3:04 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Metformin and Furosemide Drug-Drug Interaction Study

NCT02028689
View directory record Official record
Conditions
Healthy
Interventions
Lesinurad 400 mg, Metformin 850 mg, Furosemide 40 mg
Drug
Lead sponsor
Ardea Biosciences, Inc.
Industry
Eligibility
18 Years to 55 Years · Male only
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Kalamazoo, Michigan
Source: ClinicalTrials.gov public record
Updated Feb 14, 2014 · Synced Sep 30, 2026, 3:04 PM EDT