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Showing 1–24 of 784 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Normal Volunteers Clear all
Not yet recruiting No phase listed Observational Accepts healthy volunteers

MRI Technical Development and Applications in Kidney Disease

NCT02421497
View directory record Official record
Conditions
Chronic Kidney Diseases, Kidney Transplantation, Dialysis, Cognition Disorders
Interventions
Not listed
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 70 Years
Enrollment
180 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2028 – 2029
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 12, 2026 · Synced Sep 3, 2026, 2:31 AM EDT
Completed Phase 3 Interventional

Clozapine vs. Placebo in Treatment-Refractory Bipolar Disorder in Children and Adolescents

NCT00036582
View directory record Official record
Conditions
Bipolar Disorder
Interventions
Clozapine
Drug
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
Not listed
Enrollment
116 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2004
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Sep 3, 2026, 2:31 AM EDT
Completed No phase listed Observational

Assessment of Mandibular Bone Invasion With MRI Using SWIFT

NCT01817140
View directory record Official record
Conditions
Oral Cancer
Interventions
Not listed
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated May 6, 2019 · Synced Sep 3, 2026, 2:31 AM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Stem Cell Collection for Adult Volunteers

NCT00033774
View directory record Official record
Conditions
Sickle Cell
Interventions
Not listed
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years to 100 Years
Enrollment
136 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2022
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 24, 2022 · Synced Sep 3, 2026, 2:31 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Magnetic Resonance Imaging Studies of Motor and Thought Processes

NCT00001361
View directory record Official record
Conditions
Cerebrovascular Disorder, Healthy, Movement Disorder, Nervous System Disease, Spinal Cord Injury
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
Not listed
Enrollment
610 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1992 – 2002
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Sep 3, 2026, 2:31 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Dose-response Enteral Citrulline for Normal Healthy Volunteers and Surgery Patients

NCT00950976
View directory record Official record
Conditions
Nutritional Deficiency
Interventions
citrulline, Lemonade
Other
Lead sponsor
Société des Produits Nestlé (SPN)
Industry
Eligibility
18 Years and older
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2010
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 24, 2012 · Synced Sep 3, 2026, 2:31 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

UTMB Research on Severe Asthma (UROSA) Study

NCT02264691
View directory record Official record
Conditions
Asthma
Interventions
Not listed
Lead sponsor
The University of Texas Medical Branch, Galveston
Other
Eligibility
18 Years to 65 Years
Enrollment
131 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2016
U.S. locations
1
States / cities
Galveston, Texas
Source: ClinicalTrials.gov public record
Updated Oct 25, 2016 · Synced Sep 3, 2026, 2:31 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Pilot Study: Effects of G-CSF on T Cell Function

NCT00039650
View directory record Official record
Conditions
Healthy
Interventions
Not listed
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
Not listed
Enrollment
15 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 3, 2026, 2:31 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Intraoperative OCT Guidance of Intraocular Surgery II

NCT03713268
View directory record Official record
Conditions
Macular Holes, Epiretinal Membrane, Diabetic Retinopathy, Retinal Detachment, Retinal Disease, Preretinal Fibrosis, Cataract, Ocular Tumor, Strabismus, Healthy
Interventions
Microscope integrated optical coherence tomography
Device
Lead sponsor
Duke University
Other
Eligibility
4 Weeks and older
Enrollment
262 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2027
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 5, 2025 · Synced Sep 3, 2026, 2:31 AM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers

Safety and Tolerability of Single and Multiple Ascending Doses of GATE-101 in Normal Human Volunteers

NCT04618263
View directory record Official record
Conditions
Major Depressive Disorder, Excessive Sleepiness
Interventions
GATE-101
Drug
Lead sponsor
Syndeio Biosciences, Inc
Industry
Eligibility
18 Years to 40 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Eatontown, New Jersey
Source: ClinicalTrials.gov public record
Updated Aug 2, 2022 · Synced Sep 3, 2026, 2:31 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effects of TT301 on Cytokine Levels Post Endotoxin Challenge

NCT01357421
View directory record Official record
Conditions
Traumatic Brain Injury
Interventions
TT301, Placebo
Drug
Lead sponsor
OPKO Health, Inc.
Industry
Eligibility
18 Years to 40 Years · Male only
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 5, 2013 · Synced Sep 3, 2026, 2:31 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Magnetic Resonance Imaging (MRI) of Neuropsychiatric Patients and Healthy Volunteers

NCT00004571
View directory record Official record
Conditions
Schizophrenia, Normal Physiology
Interventions
Not listed
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
18 Years to 120 Years
Enrollment
3,273 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2000
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 27, 2026 · Synced Sep 3, 2026, 2:31 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Safety and Immunogenicity of BPL-1357, A BPL-Inactivated, Whole-Virus, Universal Influenza Vaccine

NCT05027932
View directory record Official record
Conditions
Influenza
Interventions
IN Placebo, IM Placebo, BPL-1357
Other · Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 55 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 7, 2025 · Synced Sep 3, 2026, 2:31 AM EDT
Completed No phase listed Observational

Neuropathology of Spasmodic Dysphonia

NCT00118586
View directory record Official record
Conditions
Voice Disorders, Spasmodic Dysphonia, Healthy, Movement Disorder, Focal Dystonia
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
21 Years and older
Enrollment
97 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2022
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 7, 2022 · Synced Sep 3, 2026, 2:31 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Neuropsychological Evaluation of Psychiatric and Neurological Patients

NCT00001192
View directory record Official record
Conditions
Anxiety Disorder, Head Injury, Mood Disorder, Schizophrenia, Seizures
Interventions
Not listed
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
Up to 95 Years
Enrollment
4,300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1983 – 2006
U.S. locations
5
States / cities
Washington D.C., District of Columbia • Bethesda, Maryland • Detroit, Michigan + 1 more
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Sep 3, 2026, 2:31 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Study to Evaluate the Pharmacokinetics, Safety and Tolerability of PF-06651600 in Subjects With Hepatic Impairment and Healthy Volunteers

NCT04016077
View directory record Official record
Conditions
Hepatic Impairment, Healthy Participants
Interventions
PF-06651600 30 mg
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 70 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
2
States / cities
Miami, Florida • Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Apr 7, 2021 · Synced Sep 3, 2026, 2:31 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Collection and Analysis of Blood, Bone Marrow, and Buccal Mucosa Samples From Healthy Volunteers

NCT00442195
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Not listed
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
8 Years to 99 Years
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2007
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 31, 2026 · Synced Sep 3, 2026, 2:31 AM EDT
Completed No phase listed Observational

Endocrine Studies of Healthy Children

NCT00001195
View directory record Official record
Conditions
Healthy
Interventions
Not listed
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
2 Years to 18 Years
Enrollment
1,247 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1984 – 2014
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 5, 2017 · Synced Sep 3, 2026, 2:31 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Study to Evaluate Immune Responses in Neurologically Normal Cancer Patients

NCT00481637
View directory record Official record
Conditions
Cancer
Interventions
Not listed
Lead sponsor
Rockefeller University
Other
Eligibility
18 Years and older
Enrollment
33 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1998 – 2013
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 16, 2019 · Synced Sep 3, 2026, 2:31 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Ethical Dilemmas in Clinical Practice: A Survey of European Physicians

NCT00352573
View directory record Official record
Conditions
Ethics
Interventions
Not listed
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
21 Years and older
Enrollment
1,357 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2014
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 2, 2022 · Synced Sep 3, 2026, 2:31 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Sleep Duration and Architecture on Insulin Sensitivity

NCT01396941
View directory record Official record
Conditions
Insulin Resistance
Interventions
Sleep restriction
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 45 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2014
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jul 18, 2021 · Synced Sep 3, 2026, 2:31 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety and Pharmacokinetics of NRX-1074 in Normal Volunteers

NCT01856556
View directory record Official record
Conditions
Healthy
Interventions
NRX-1074, Placebo
Drug
Lead sponsor
Naurex, Inc, an affiliate of Allergan plc
Industry
Eligibility
18 Years to 55 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
1
States / cities
Pasadena, California
Source: ClinicalTrials.gov public record
Updated Jan 25, 2016 · Synced Sep 3, 2026, 2:31 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Postural Effects of Being Rotated in a Whole Body Gyroscope

NCT01188161
View directory record Official record
Conditions
Falls, Balance, Movement Disorders
Interventions
Rotating Chair
Device
Lead sponsor
Carrick Institute for Graduate Studies
Other
Eligibility
18 Years to 60 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Marietta, Georgia
Source: ClinicalTrials.gov public record
Updated Aug 24, 2010 · Synced Sep 3, 2026, 2:31 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Intranasal Administration of Neuropeptide Y in Healthy Male Volunteers

NCT00748956
View directory record Official record
Conditions
Mood Disorder, Anxiety Disorders
Interventions
Low dose NPY, High dose NPY, Placebo
Drug
Lead sponsor
Dennis Charney
Other
Eligibility
25 Years to 45 Years · Male only
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 31, 2017 · Synced Sep 3, 2026, 2:31 AM EDT