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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Normal Volunteers Clear all
Completed No phase listed Observational Accepts healthy volunteers

pH-weighted MRI in Multiple Sclerosis: A Surrogate Marker of Tissue Metabolic Stress

NCT03028675
View directory record Official record
Conditions
Multiple Sclerosis
Interventions
MRI Scan
Other
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 65 Years
Enrollment
4 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 12, 2020 · Synced Sep 9, 2026, 7:30 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

To Evaluate Pharmacokinetics (PK) and Safety of Tavapadon in Participants With Severe Renal Impairment Compared to Participants With Normal Renal Function

NCT05404542
View directory record Official record
Conditions
Renal Impairment
Interventions
Tavapadon
Drug
Lead sponsor
Cerevel Therapeutics, LLC
Industry
Eligibility
18 Years to 80 Years
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
3
States / cities
Jacksonville, Florida • Miami, Florida • Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Apr 1, 2024 · Synced Sep 9, 2026, 7:30 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

The Mechanistic Biology of Primary Immunodeficiency Disorders

NCT03394053
View directory record Official record
Conditions
Primary Immunodeficiency Disorders
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
1 Day to 90 Years
Enrollment
2,500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2040
U.S. locations
2
States / cities
Washington D.C., District of Columbia • Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 7, 2026 · Synced Sep 9, 2026, 7:30 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Effects of Nitrite on Blood Vessel Dilation in Normal Volunteers

NCT00048477
View directory record Official record
Conditions
Nitric Oxide, Endothelium-Derived Relaxing Factor, Healthy
Interventions
L-NMMA and Sodium Nitrite
Drug
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
Not listed
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2003
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Sep 9, 2026, 7:30 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

The Effect of Positive and Negative Emotions on Brain Activity in Alcoholics and Nonalcoholics

NCT00001675
View directory record Official record
Conditions
Alcoholism, Healthy
Interventions
Not listed
Lead sponsor
National Institute on Alcohol Abuse and Alcoholism (NIAAA)
NIH
Eligibility
12 Years to 65 Years
Enrollment
1,194 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1998 – 2015
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 8, 2019 · Synced Sep 9, 2026, 7:30 AM EDT
Suspended No phase listed Observational Accepts healthy volunteers

Solid Tumor Imaging MR-Linac (STIM Study)

NCT03500081
View directory record Official record
Conditions
Cancer
Interventions
MRI Scan
Device
Lead sponsor
Medical College of Wisconsin
Other
Eligibility
18 Years and older
Enrollment
295 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2029
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jan 11, 2026 · Synced Sep 9, 2026, 7:30 AM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

: Vascular Function in Health and Disease

NCT02966665
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease, Pulmonary Artery Hypertension, Heart Failure, Hypertension
Interventions
Maximum Exercise Tests, BH4, L-NMMA, Vitamin C, Vitamin E, α-Lipoic Acid and L-Ascorbate, BQ-123, Fexofenadine, Ranitidine, Angiotensin-II, Valsartan, Acetylcholine, Sodium Nitroprusside, Angiotensin-II, Norepinephrine, Phentolamine, BQ-123, MitoQ, BH4
Other · Drug
Lead sponsor
Russell Richardson
Other
Eligibility
18 Years and older
Enrollment
420 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2026
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Sep 25, 2025 · Synced Sep 9, 2026, 7:30 AM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

High-Intensity Interval Training and Regulatory T Cells

NCT04774484
View directory record Official record
Conditions
End Stage Renal Disease
Interventions
High Intensity Interval Training
Other
Lead sponsor
Francesc Marti
Other
Eligibility
18 Years to 65 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Feb 13, 2023 · Synced Sep 9, 2026, 7:30 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Fear Conditioning Using Computer-Generated Virtual Reality

NCT00025844
View directory record Official record
Conditions
Anxiety Disorder
Interventions
Not listed
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
7 Years to 50 Years
Enrollment
202 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001 – 2012
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Sep 9, 2026, 7:30 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Magnesium Effects in Apheresis

NCT00040235
View directory record Official record
Conditions
Healthy
Interventions
magnesium
Procedure
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
Not listed
Enrollment
52 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2004
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Sep 9, 2026, 7:30 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Single Dose Study of Oral Vadadustat in Subjects With Normal and Impaired Hepatic Function

NCT03799848
View directory record Official record
Conditions
Hepatic Impairment
Interventions
Vadadustat
Drug
Lead sponsor
Akebia Therapeutics
Industry
Eligibility
18 Years to 70 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
2
States / cities
Saint Paul, Minnesota • San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Mar 21, 2019 · Synced Sep 9, 2026, 7:30 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Vasodilation in Patients With Fabry's Disease

NCT00001774
View directory record Official record
Conditions
Cerebrovascular Accident, Fabry Disease, Healthy
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
Male only
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1997 – 2000
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Sep 9, 2026, 7:30 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Magnetic Resonance Elastography in Patients With Abdominal Aortic Aneurysms

NCT02387255
View directory record Official record
Conditions
Abdominal Aortic Aneurysm
Interventions
Resoundant Driver System
Device
Lead sponsor
Ohio State University
Other
Eligibility
20 Years and older
Enrollment
165 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2028
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 7, 2025 · Synced Sep 9, 2026, 7:30 AM EDT
Completed No phase listed Observational

Studies of the Natural History and Pathogenesis of Autoimmune/Connective Tissue Diseases

NCT00341679
View directory record Official record
Conditions
Autoimmune/Connective Tissue Diseases, Idiopathic Inflammatory Myopathies, Polymyositis, Dermatomyositis
Interventions
Not listed
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
2 Years and older
Enrollment
719 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2005
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 31, 2026 · Synced Sep 9, 2026, 7:30 AM EDT
Enrolling by invitation No phase listed Observational

MRI and Computational Simulation Cardiology Study

NCT03149341
View directory record Official record
Conditions
Congenital Heart Disease, Pulmonary Hypertension
Interventions
Magnetic Resonance Imaging
Other
Lead sponsor
Stanford University
Other
Eligibility
Not listed
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2029
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Dec 17, 2024 · Synced Sep 9, 2026, 7:30 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Bioequivalence Study of ARQ 197 Amorphous and Crystalline Polymorphs A and B in Normal Healthy Volunteers

NCT00658554
View directory record Official record
Conditions
Healthy
Interventions
ARQ 197
Drug
Lead sponsor
ArQule, Inc., a subsidiary of Merck Sharp & Dohme LLC, a subsidiary of Merck & Co., Inc. (Rahway, NJ USA)
Industry
Eligibility
18 Years to 65 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
Evansville, Indiana
Source: ClinicalTrials.gov public record
Updated Jun 18, 2008 · Synced Sep 9, 2026, 7:30 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Collection of Immunology Specimens From Patients With Cancer or Blood Disorders, and Healthy Volunteers

NCT03207854
View directory record Official record
Conditions
Healthy Subject, Hematologic and Lymphocytic Disorder, Hematopoietic and Lymphoid Cell Neoplasm, Immune System Disorder, Malignant Neoplasm
Interventions
Biospecimen Collection, Laboratory Biomarker Analysis, Questionnaire Administration
Procedure · Other
Lead sponsor
University of Southern California
Other
Eligibility
19 Years and older
Enrollment
625 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2027
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Apr 1, 2026 · Synced Sep 9, 2026, 7:30 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study of DCR-PHXC-101 in Normal Healthy Volunteers and Patients With Primary Hyperoxaluria

NCT03392896
View directory record Official record
Conditions
Primary Hyperoxaluria
Interventions
DCR-PHXC, Placebo
Drug
Lead sponsor
Dicerna Pharmaceuticals, Inc., a Novo Nordisk company
Industry
Eligibility
6 Years and older
Enrollment
43 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 18, 2024 · Synced Sep 9, 2026, 7:30 AM EDT
Enrolling by invitation Phase 2 Interventional Accepts healthy volunteers

Effects of Bronchial Segmental Endotoxin Instillation in Humans

NCT02392442
View directory record Official record
Conditions
Acute Lung Inflammation
Interventions
Saline, Endotoxin
Other · Biological
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
18 Years to 45 Years
Enrollment
58 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2027
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 26, 2026 · Synced Sep 9, 2026, 7:30 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study of Safety, Tolerability and Pharmacokinetics of NRX-1074 in Normal Healthy Volunteers

NCT02366364
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
Placebo, NRX-1074 375 mg, NRX-1074 500 mg, NRX-1074 750 mg
Drug
Lead sponsor
Naurex, Inc, an affiliate of Allergan plc
Industry
Eligibility
18 Years to 55 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 21, 2016 · Synced Sep 9, 2026, 7:30 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Ultrasound Monitoring of Abdominal Soft Tissue

NCT02722616
View directory record Official record
Conditions
Pancreatic Cancer, Liver Cancer
Interventions
Ultrasound scan of the pancreas, Ultrasound scan of the Liver, Reference ultrasound
Device · Drug
Lead sponsor
Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins
Other
Eligibility
18 Years to 100 Years
Enrollment
2 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2022
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 17, 2024 · Synced Sep 9, 2026, 7:30 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Advanced Imaging for Glaucoma Study

NCT01314326
View directory record Official record
Conditions
Glaucoma
Interventions
Not listed
Lead sponsor
Oregon Health and Science University
Other
Eligibility
40 Years to 79 Years
Enrollment
832 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2015
U.S. locations
5
States / cities
Los Angeles, California • Miami, Florida • Boston, Massachusetts + 2 more
Source: ClinicalTrials.gov public record
Updated Apr 11, 2018 · Synced Sep 9, 2026, 7:30 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

NASOBOL in Hypogonadal Men in Comparison to Testosterone Levels in Normal Healthy Male Volunteers

NCT00647868
View directory record Official record
Conditions
Hypogonadism
Interventions
testosterone
Drug
Lead sponsor
Acerus Pharmaceuticals Corporation
Industry
Eligibility
20 Years to 60 Years · Male only
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Torrance, California
Source: ClinicalTrials.gov public record
Updated Mar 29, 2018 · Synced Sep 9, 2026, 7:30 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

VRC 900: Evaluation of Tissue-Specific Immune Responses in Adults 18 Years of Age and Older

NCT01132859
View directory record Official record
Conditions
Immunity, Mucosal, Immune System Processes, Blood Specimen Collection
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 120 Years
Enrollment
500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2010
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 31, 2026 · Synced Sep 9, 2026, 7:30 AM EDT