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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Healthy Adult Male Clear all
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 24, 2019 · Synced Jul 23, 2026, 1:27 AM 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 15, 2024 · Synced Jul 23, 2026, 1:27 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Evaluate Pharmacokinetic, Safety, Tolerability and Relative Bioavailability of Gepotidacin in Healthy Adult Male and Female Participants

NCT05271799
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Gepotidacin
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 50 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated Jan 29, 2023 · Synced Jul 23, 2026, 1:27 AM EDT
Not yet recruiting Phase 1 Interventional Accepts healthy volunteers

Study to Compare the Effects of Viagra® Vs Hezkue® in Healthy Fasted Male Participants.

NCT06782659
View directory record Official record
Conditions
Erectile Dysfunction
Interventions
ASP-001, Viagra, ASP-001
Drug · Device
Lead sponsor
Aspargo Labs, Inc
Industry
Eligibility
18 Years to 55 Years · Male only
Enrollment
56 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
2
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Jan 19, 2025 · Synced Jul 23, 2026, 1:27 AM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

Safety and PK Study of BICX104 With or Without Bupropion Compared to Vivitrol

NCT07269873
View directory record Official record
Conditions
Healthy Adult Male and Female Volunteers
Interventions
BICX104 naltrexone implantable pellet, Bupropion 150 mg XL, Naltrexone (depot)
Drug
Lead sponsor
BioCorRx Pharmaceuticals Inc
Other
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated May 12, 2026 · Synced Jul 23, 2026, 1:27 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Learn How the Body Processes the Study Medicine Called PF-07923568 in People With Loss of Kidney Function

NCT06037031
View directory record Official record
Conditions
Renal Impairment
Interventions
Drug: PF-07923568
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 90 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
6
States / cities
Orlando, Florida • Tampa, Florida • Saint Paul, Minnesota + 1 more
Source: ClinicalTrials.gov public record
Updated Jul 18, 2024 · Synced Jul 23, 2026, 1:27 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Exploratory Study Using Positron Emission Tomography With TS-121 and [11C]TASP0410699 in Healthy Adult Male Subjects

NCT02448212
View directory record Official record
Conditions
Healthy
Interventions
TS-121, [11C]TASP0410699, Positron Emission Tomography (PET)
Drug · Radiation
Lead sponsor
Taisho Pharmaceutical R&D Inc.
Industry
Eligibility
18 Years to 55 Years · Male only
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Feb 13, 2017 · Synced Jul 23, 2026, 1:27 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Renal Impairment Study of PF-07321332 Boosted With Ritonavir in Adult Participants With Renal Impairment and in Healthy Participants With Normal Renal Function.

NCT04909853
View directory record Official record
Conditions
Renal Impairment
Interventions
PF-07321332/ritonavir
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 75 Years
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
5
States / cities
Tustin, California • Miami, Florida • Tampa, Florida + 1 more
Source: ClinicalTrials.gov public record
Updated Aug 1, 2023 · Synced Jul 23, 2026, 1:27 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Study of the Efficacy and Safety of Intravenous vs Oral Acetaminophen for Treatment of Fever in Healthy Adult Males

NCT00564629
View directory record Official record
Conditions
Fever
Interventions
Intravenous acetaminophen plus oral placebo, Oral acetaminophen plus IV placebo, Reference standard endotoxin (RSE)
Drug · Biological
Lead sponsor
Mallinckrodt
Industry
Eligibility
18 Years to 75 Years · Male only
Enrollment
105 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007
U.S. locations
1
States / cities
Knoxville, Tennessee
Source: ClinicalTrials.gov public record
Updated Oct 18, 2016 · Synced Jul 23, 2026, 1:27 AM EDT
Active, not recruiting Phase 1 Interventional Accepts healthy volunteers

A Study to Evaluate Blood Levels of Bepirovirsen in Adult Participants With Severe or Moderate Kidney Disease

NCT07168356
View directory record Official record
Conditions
Hepatitis B
Interventions
Bepirovirsen
Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 80 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
3
States / cities
Orlando, Florida • Tampa, Florida • San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated May 21, 2026 · Synced Jul 23, 2026, 1:27 AM EDT
Active, not recruiting Phase 1 Interventional Accepts healthy volunteers

A Study to Understand How a Study Medicine Called PF-07328948 is Absorbed and Processed in the Body of Healthy Male Adults

NCT07508228
View directory record Official record
Conditions
Healthy
Interventions
Oral [14C]PF-07328948, Oral Unlabeled PF-07328948, IV [14C]PF-07328948
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 64 Years · Male only
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jul 19, 2026 · Synced Jul 23, 2026, 1:27 AM 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 21, 2014 · Synced Jul 23, 2026, 1:27 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study of the Blood Levels of Palovarotene in Participants With Abnormal Liver Function Compared to Healthy Adult Participants After Intake of a Single Dose

NCT06908954
View directory record Official record
Conditions
Hepatic Impairment, Healthy
Interventions
Palovarotene
Drug
Lead sponsor
Ipsen
Industry
Eligibility
18 Years to 70 Years
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
4
States / cities
Miami, Florida • Orlando, Florida • San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Apr 29, 2026 · Synced Jul 23, 2026, 1:27 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of E2609 in Healthy Adult Male Japanese and White Subjects

NCT02207790
View directory record Official record
Conditions
Healthy Subjects
Interventions
E2609, Placebo
Drug
Lead sponsor
Eisai Inc.
Industry
Eligibility
30 Years to 60 Years · Male only
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
Glendale, California
Source: ClinicalTrials.gov public record
Updated Nov 2, 2015 · Synced Jul 23, 2026, 1:27 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Study of SSP-004184 (FBS0701) in Healthy Adults and Elderly Subjects and in Subjects With Impaired Renal Function

NCT01716455
View directory record Official record
Conditions
Impaired Renal Function
Interventions
SSP-004184
Drug
Lead sponsor
Shire
Industry
Eligibility
18 Years to 85 Years
Enrollment
66 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
2
States / cities
Miami, Florida • Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Jun 9, 2021 · Synced Jul 23, 2026, 1:27 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Evaluate the Effect of Oral Mirabegron on the Heart in Healthy Males and Females

NCT01199523
View directory record Official record
Conditions
Healthy Subjects
Interventions
Placebo, mirabegron, moxifloxacin
Drug
Lead sponsor
Astellas Pharma Inc
Industry
Eligibility
18 Years to 55 Years
Enrollment
352 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
2
States / cities
Glendale, California • Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 2, 2013 · Synced Jul 23, 2026, 1:27 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study of Pharmacokinetics, Safety and Tolerability of Intravenous Methylnaltrexone Bromide

NCT01366365
View directory record Official record
Conditions
Healthy Adults
Interventions
methylnaltrexone, placebo
Drug
Lead sponsor
Bausch Health Americas, Inc.
Industry
Eligibility
18 Years and older
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006
U.S. locations
1
States / cities
Tarrytown, New York
Source: ClinicalTrials.gov public record
Updated Nov 26, 2019 · Synced Jul 23, 2026, 1:27 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Fasting Study of Divalproex Sodium Extended-Release Tablets 500 mg to Depakote ER® Tablets 500 mg

NCT00647712
View directory record Official record
Conditions
Healthy
Interventions
Divalproex Sodium Extended-Release Tablets 500 mg, Depakote ER® Tablets 500 mg
Drug
Lead sponsor
Mylan Pharmaceuticals Inc
Industry
Eligibility
18 Years and older · Male only
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Sep 24, 2009 · Synced Jul 23, 2026, 1:27 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study of DISC-3405 in Healthy Volunteers

NCT06050915
View directory record Official record
Conditions
Healthy Volunteer
Interventions
DISC-3405, Placebo
Drug
Lead sponsor
Disc Medicine, Inc
Industry
Eligibility
18 Years to 65 Years
Enrollment
64 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Dec 17, 2024 · Synced Jul 23, 2026, 1:27 AM 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 27, 2016 · Synced Jul 23, 2026, 1:27 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

A Study to Evaluate Endoflip Normal Ranges Data in Healthy Volunteers

NCT04809883
View directory record Official record
Conditions
Healthy
Interventions
Endoflip measurement of gastric and pyloric function
Diagnostic Test
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 26, 2022 · Synced Jul 23, 2026, 1:27 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Food Study of Divalproex Sodium Extended-Release Tablets 500 mg to Depakote ER® Tablets 500 mg

NCT00648076
View directory record Official record
Conditions
Healthy
Interventions
Divalproex Sodium Extended-Release Tablets 500 mg, Depakote ER® Tablets 500 mg
Drug
Lead sponsor
Mylan Pharmaceuticals Inc
Industry
Eligibility
18 Years and older · Male only
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Sep 24, 2009 · Synced Jul 23, 2026, 1:27 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Study To Evaluate The Pharmacokinetics, Excretion, Mass Balance and Metabolism of PF-07265803

NCT05286281
View directory record Official record
Conditions
Healthy
Interventions
PF-07265803
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older · Male only
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Mar 28, 2024 · Synced Jul 23, 2026, 1:27 AM 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 16, 2019 · Synced Jul 23, 2026, 1:27 AM EDT