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ClinicalTrials.gov public records Last synced Sep 30, 2026, 9:08 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–24 of 445 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Healthy Volunteers (HV) Clear all
Recruiting No phase listed Observational Accepts healthy volunteers

Defining the Brain Phenotype of Children With Williams Syndrome

NCT01132885
View directory record Official record
Conditions
Williams Syndrome, Duplication
Interventions
Not listed
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
5 Years and older
Enrollment
415 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2011
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 22, 2026 · Synced Sep 30, 2026, 9:08 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Brain Receptors in Sympathetic Nervous System Regulation

NCT00029627
View directory record Official record
Conditions
Healthy
Interventions
Yohimbine
Drug
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
Not listed
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2004
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 4, 2008 · Synced Sep 30, 2026, 9:08 AM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Developing Therapies for Traumatic Brain Injury

NCT01420939
View directory record Official record
Conditions
Traumatic Brain Injury
Interventions
Not listed
Lead sponsor
National Institute of Nursing Research (NINR)
NIH
Eligibility
18 Years to 70 Years
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 12, 2019 · Synced Sep 30, 2026, 9:08 AM EDT
Withdrawn Phase 2 Interventional Accepts healthy volunteers

Effect of EGCG on the Body's Response to Insulin

NCT00434499
View directory record Official record
Conditions
Hypertension, Obesity, Type 2 Diabetes, Insulin Resistance
Interventions
EGCG
Drug
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
21 Years to 65 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2015
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 4, 2022 · Synced Sep 30, 2026, 9:08 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Immune Response to Influenza Vaccine in HIV-Infected Individuals

NCT00069914
View directory record Official record
Conditions
HIV Infections
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
Not listed
Enrollment
165 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2005
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 4, 2008 · Synced Sep 30, 2026, 9:08 AM EDT
Completed No phase listed Observational

Effect of Gabapentin on GABA Concentration and Emotional Processing

NCT00094510
View directory record Official record
Conditions
Healthy
Interventions
Not listed
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
18 Years to 60 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2010
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 2, 2017 · Synced Sep 30, 2026, 9:08 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Cortical Excitability in Obsessive-Compulsive and Related Disorders

NCT00029068
View directory record Official record
Conditions
Obsessive Compulsive Disorder, Healthy
Interventions
Not listed
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
Not listed
Enrollment
145 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2003
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 4, 2008 · Synced Sep 30, 2026, 9:08 AM EDT
Completed Phase 1 Interventional

Phase I Study of HIV Adenoviral Vector Vaccine in Healthy Subjects Using Needle or Biojector Injection

NCT00709605
View directory record Official record
Conditions
HIV Infections
Interventions
VRC-HIVADV014-00-VP
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 55 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2014
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 17, 2019 · Synced Sep 30, 2026, 9:08 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effects of Oral Glucosamine on Insulin and Blood Vessel Activity in Normal and Obese People

NCT00065377
View directory record Official record
Conditions
Obesity, Insulin Resistance
Interventions
Glucosamine Hydrochloride
Drug
Lead sponsor
National Center for Complementary and Integrative Health (NCCIH)
NIH
Eligibility
21 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2006
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 26, 2006 · Synced Sep 30, 2026, 9:08 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Use of [18F]FECNT in Positron Emission Tomography

NCT00083629
View directory record Official record
Conditions
Healthy
Interventions
PET
Procedure
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
Not listed
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2005
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 4, 2008 · Synced Sep 30, 2026, 9:08 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Brain Imaging of Serotonin Transporters in the Brain

NCT00059046
View directory record Official record
Conditions
Healthy, Serotonin Transporter
Interventions
Not listed
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
Not listed
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2005
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 4, 2008 · Synced Sep 30, 2026, 9:08 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Brain Networks Responsible for Sense of Agency

NCT00283907
View directory record Official record
Conditions
Spatiotemporal Patterns
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
18 Years to 80 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2008
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 2, 2017 · Synced Sep 30, 2026, 9:08 AM EDT
Completed No phase listed Observational

Dopamine Function in Developmental Stuttering

NCT00024960
View directory record Official record
Conditions
Developmental Stuttering
Interventions
Not listed
Lead sponsor
National Institute on Deafness and Other Communication Disorders (NIDCD)
NIH
Eligibility
18 Years to 55 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2010
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 2, 2017 · Synced Sep 30, 2026, 9:08 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Effect of Transcranial Magnetic Stimulation on Free Will

NCT00029653
View directory record Official record
Conditions
Healthy
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
Not listed
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 4, 2008 · Synced Sep 30, 2026, 9:08 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Brain Networks Responsible for Self-Agency

NCT00246831
View directory record Official record
Conditions
Brain
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
18 Years to 80 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2008
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 2, 2017 · Synced Sep 30, 2026, 9:08 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Magnetic Resonance Imaging of the Brain in Social and Emotional Reasoning

NCT00060853
View directory record Official record
Conditions
Healthy
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
Not listed
Enrollment
330 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2005
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 4, 2008 · Synced Sep 30, 2026, 9:08 AM EDT
Completed No phase listed Observational

Spaced Versus Massed Skill Learning

NCT00426465
View directory record Official record
Conditions
Healthy Volunteer
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
18 Years to 80 Years
Enrollment
213 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2013
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 17, 2019 · Synced Sep 30, 2026, 9:08 AM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Recording and Modulation of Neuronal Mechanisms During Operant Conditioning: a MEG Study

NCT01006109
View directory record Official record
Conditions
Central Nervous System
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
18 Years to 40 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2017
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 17, 2019 · Synced Sep 30, 2026, 9:08 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Measuring Distress Tolerance With Functional MRI

NCT01038232
View directory record Official record
Conditions
Cocaine Dependence
Interventions
Not listed
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 55 Years
Enrollment
99 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2015
U.S. locations
2
States / cities
Baltimore, Maryland • College Park, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 12, 2019 · Synced Sep 30, 2026, 9:08 AM EDT
Completed Phase 1 Interventional

PET Imaging of Peripheral Benzodiazepine Receptors in Patients With Neurocysticercosis Using [F-18]FB

NCT00527579
View directory record Official record
Conditions
Neurocysticercosis, Healthy
Interventions
[F-18]FBR
Drug
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
18 Years to 65 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2013
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 5, 2018 · Synced Sep 30, 2026, 9:08 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Experimental Ebola Vaccine Trial

NCT00072605
View directory record Official record
Conditions
Hemorrhagic Fever, Ebola, Healthy
Interventions
VRC-EBODNA012-00-VP
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 44 Years
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2007
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 17, 2019 · Synced Sep 30, 2026, 9:08 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Effect of Diet on Vascular Disease in Pre-Menopausal Women

NCT00484861
View directory record Official record
Conditions
Cardiovascular Diseases, Vascular Disease, Inflammation, Insulin, Triglycerides
Interventions
Not listed
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years to 65 Years · Female only
Enrollment
47 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2017
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 17, 2019 · Synced Sep 30, 2026, 9:08 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Genetic Characterization of Parkinson's Disease

NCT00105131
View directory record Official record
Conditions
Parkinson Disease, PD, Movement Disorder, Healthy Volunteer, HV
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
Not listed
Enrollment
2,500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 4, 2008 · Synced Sep 30, 2026, 9:08 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Brain Activation in Vocal and Motor Tics

NCT00026000
View directory record Official record
Conditions
Tourette's Syndrome, Chronic Motor Tic Disorder, Chronic Motor Vocal Disorder
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
Not listed
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001 – 2005
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 4, 2008 · Synced Sep 30, 2026, 9:08 AM EDT