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Showing 1–24 of 242 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Human Physiology Clear all
Recruiting Phase 1 Interventional Accepts healthy volunteers

Single Dose Study to Evaluate the Pharmacokinetics, Safety and Tolerability of Pevifoscorvir Sodium (ALG-000184) in Participants With Renal Impairment and in Healthy Participants With Normal Renal Function

NCT07342881
View directory record Official record
Conditions
Chronic Hepatitis B Infection
Interventions
Pevifoscorvir Sodium (ALG-000184)
Drug
Lead sponsor
Aligos Therapeutics
Industry
Eligibility
18 Years to 75 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
2
States / cities
Orlando, Florida • Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Feb 26, 2026 · Synced Jun 25, 2026, 2:36 PM EDT
Completed Phase 1Phase 2 Interventional Results available

CR Aim #2 - AT1 Receptor Blockade & ACE Inhibition Effect on Humoral Function

NCT01678794
View directory record Official record
Conditions
Cardiorenal Syndrome (CRS)
Interventions
Candesartan, Placebo
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Nov 17, 2021 · Synced Jun 25, 2026, 2:36 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Acute Nerve Stimulation For Enhancing Human and Cognitive Performance

NCT05675956
View directory record Official record
Conditions
Concussion, Mild, Autonomic Nervous System, Cognitive
Interventions
Experimental group with 100% intensity setting on Apollo Neuro device, Active Comparator group with 10% intensity setting on the Apollo Neuro device
Device
Lead sponsor
University of South Carolina
Other
Eligibility
18 Years to 35 Years
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Columbia, South Carolina
Source: ClinicalTrials.gov public record
Updated Mar 27, 2024 · Synced Jun 25, 2026, 2:36 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Perception, Sensation, Cognition and Action in Humans

NCT03407066
View directory record Official record
Conditions
Normal Physiology
Interventions
Not listed
Lead sponsor
National Eye Institute (NEI)
NIH
Eligibility
13 Years to 65 Years
Enrollment
10,200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2027
U.S. locations
2
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 4, 2026 · Synced Jun 25, 2026, 2:36 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Seasonal Patterns of Stress, Diet and Physical Activity - Life in All Seasons (LENAS)

NCT01674296
View directory record Official record
Conditions
Obesity, Stress, Feeding Behavior, Physical Activity
Interventions
Not listed
Lead sponsor
USDA Grand Forks Human Nutrition Research Center
Federal
Eligibility
40 Years to 60 Years · Female only
Enrollment
52 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Grand Forks, North Dakota
Source: ClinicalTrials.gov public record
Updated May 19, 2020 · Synced Jun 25, 2026, 2:36 PM EDT
Terminated Not applicable Interventional

Transcutaneous and Epidural Spinal Stimulation for Enabling Motor Function in Humans With Motor Complete Paraplegia

NCT03945331
View directory record Official record
Conditions
Paraplegia, Spinal, Paraplegia, Complete, Paraplegia; Traumatic
Interventions
Transcutaneous spinal cord stimulator, Epidural spinal cord stimulation system
Device
Lead sponsor
Mayo Clinic
Other
Eligibility
22 Years and older
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Oct 18, 2020 · Synced Jun 25, 2026, 2:36 PM EDT
Completed No phase listed Observational

Effects of HIV on the Development and Function of Bone Marrow Cells

NCT00001243
View directory record Official record
Conditions
HIV Infection
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
Not listed
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1989 – 2005
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Jun 25, 2026, 2:36 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Development and Validation of Multi-nuclear Magnetic Resonance Imaging and Spectroscopy for Whole Body Human Applications

NCT02663362
View directory record Official record
Conditions
Human Body Composition, Human Body Function
Interventions
To evaluate the reproducibility of acquiring multi-nuclear data on a new 3T Philips Magnet
Other
Lead sponsor
AdventHealth Translational Research Institute
Other
Eligibility
12 Years to 89 Years
Enrollment
250 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2027
U.S. locations
1
States / cities
Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Mar 29, 2026 · Synced Jun 25, 2026, 2:36 PM EDT
Not yet recruiting Phase 1Phase 2 Interventional

Evaluation of Superiority of Valsartan+Celecoxib+Metformin Over Metformin Alone in Type 2 Diabetes Patients

NCT03686657
View directory record Official record
Conditions
Type 2 Diabetes, High Blood Pressure, Arthritis, Obesity
Interventions
Metformin, Val, Cel and Met XR Low, Val, Cel and Met XR High
Drug
Lead sponsor
ARKAY Therapeutics
Industry
Eligibility
18 Years to 70 Years
Enrollment
115 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
Albany, New York
Source: ClinicalTrials.gov public record
Updated Jun 2, 2025 · Synced Jun 25, 2026, 2:36 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Imaging Brain Fluids During Breathing

NCT05180981
View directory record Official record
Conditions
Healthy
Interventions
Transcutaneous vagal nerve stimulation, Breathing task
Device · Behavioral
Lead sponsor
Boston University Charles River Campus
Other
Eligibility
18 Years to 70 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2026
U.S. locations
2
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 14, 2023 · Synced Jun 25, 2026, 2:36 PM EDT
Completed Phase 1 Interventional Results available

Genomic Responses of Human Immune and Non-Immune Cells to Glucocorticoids

NCT02798523
View directory record Official record
Conditions
Normal Physiology
Interventions
Methylprednisolone sodium succinate(Solu-Medrol), Topical methylprednisolone (Advantan emulsion 0 /1%)
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 64 Years
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 21, 2023 · Synced Jun 25, 2026, 2:36 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Brain Function in Performance of Motor Tasks

NCT00498329
View directory record Official record
Conditions
Brain Connectivity
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
18 Years to 60 Years
Enrollment
144 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2011
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Jun 25, 2026, 2:36 PM EDT
Not yet recruiting Not applicable Interventional

WearME-Pro Phase II: Remote Use Usability and Longitudinal Validation Study (Patch Form Factor).

NCT07430605
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease (COPD)
Interventions
WearME-Pro Patch System, FDA-cleared handheld spirometer (reference comparator), Cardea SOLO ECG patch (optional subset; exploratory HR reference)
Device
Lead sponsor
LASARRUS Clinic and Research Center
Industry
Eligibility
21 Years and older
Enrollment
82 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
3
States / cities
Baltimore, Maryland • Salisbury, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 23, 2026 · Synced Jun 25, 2026, 2:36 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Sequential Exposure to Nitrogen Dioxide and Ozone in Healthy Adult Human Volunteers.

NCT02133586
View directory record Official record
Conditions
Respiratory Depression
Interventions
Ozone, Nitrogen dioxide
Other
Lead sponsor
Environmental Protection Agency (EPA)
Federal
Eligibility
18 Years to 40 Years
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 16, 2020 · Synced Jun 25, 2026, 2:36 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Eccentric Motor Control After SCI

NCT02821845
View directory record Official record
Conditions
Spinal Cord Injury
Interventions
Untrained and Trained SCI Hip or Knee
Behavioral
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 90 Years
Enrollment
49 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2019
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 21, 2021 · Synced Jun 25, 2026, 2:36 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Skeletal Muscle Effects of GH in Boys

NCT04020913
View directory record Official record
Conditions
Growth Hormone Deficiency, Idiopathic Short Stature
Interventions
Somatropin injection
Drug
Lead sponsor
Nemours Children's Clinic
Other
Eligibility
6 Years to 11 Years · Male only
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2025
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Nov 3, 2025 · Synced Jun 25, 2026, 2:36 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

PET Scan to Study Brain Control of Human Movement

NCT00001324
View directory record Official record
Conditions
Ataxia, Cerebrovascular Accident, Healthy, Movement Disorder, Tremor
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
Not listed
Enrollment
510 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1992 – 2001
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 15, 2021 · Synced Jun 25, 2026, 2:36 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Oral Glutathione Supplementation in Older Healthy Adults and Its Effect on the Number of Healthy Days Experienced During Four Months of Supplementation Compared to Placebo

NCT02438956
View directory record Official record
Conditions
Improvement in Immune Cell Function in Elderly Humans
Interventions
Setria glutathione supplement, Crystalline Cellulose
Dietary Supplement
Lead sponsor
University of Florida
Other
Eligibility
50 Years to 75 Years
Enrollment
124 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Oct 23, 2017 · Synced Jun 25, 2026, 2:36 PM EDT
Completed No phase listed Observational Results available

Diaphragm Pacing in Individuals With Spinal Cord Injuries

NCT04179799
View directory record Official record
Conditions
Cervical Spinal Cord Injury
Interventions
Diaphragm Pacing
Device
Lead sponsor
University of Florida
Other
Eligibility
18 Years to 75 Years
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated May 29, 2024 · Synced Jun 25, 2026, 2:36 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effect of NGX-4010 on ENFD and Sensory Function

NCT00254449
View directory record Official record
Conditions
Human Volunteers
Interventions
NGX-4010
Drug
Lead sponsor
NeurogesX
Industry
Eligibility
18 Years to 40 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2006
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 15, 2009 · Synced Jun 25, 2026, 2:36 PM EDT
Completed Not applicable Interventional Results available

Endothelial Function After Cardiac Surgery

NCT02882074
View directory record Official record
Conditions
Endothelial Dysfunction
Interventions
Human albumin, Hydroxyethyl starch
Drug
Lead sponsor
The Cleveland Clinic
Other
Eligibility
40 Years to 85 Years
Enrollment
85 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 31, 2024 · Synced Jun 25, 2026, 2:36 PM EDT
Completed Phase 2 Interventional Results available

Study of Vitamin D and Effect on Heart Disease and Insulin Resistance

NCT01093417
View directory record Official record
Conditions
Human Immunodeficiency Virus (HIV), Vitamin D Deficiency, HIV Infections
Interventions
Vitamin D, Placebo
Drug · Other
Lead sponsor
University Hospitals Cleveland Medical Center
Other
Eligibility
18 Years and older
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 13, 2016 · Synced Jun 25, 2026, 2:36 PM EDT
Active, not recruiting Not applicable Interventional

The TRIABETES - ARMMS-T2D Study: A Randomized Trial to Compare Surgical and Medical Treatments for Type 2 Diabetes

NCT01047735
View directory record Official record
Conditions
Type 2 Diabetes Mellitus, Obesity
Interventions
Roux-en-Y Gastric Bypass Surgery, Laparoscopic Adjustable Gastric Banding, Lifestyle Weight Loss Intervention
Procedure · Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
25 Years to 55 Years
Enrollment
69 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2028
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 10, 2026 · Synced Jun 25, 2026, 2:36 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study of the Pharmacokinetics and Safety of Asunaprevir in Patients With Kidney Disease

NCT01886599
View directory record Official record
Conditions
Hepatitis C
Interventions
Asunaprevir
Drug
Lead sponsor
Bristol-Myers Squibb
Industry
Eligibility
18 Years and older
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
3
States / cities
Orlando, Florida • Minneapolis, Minnesota • Knoxville, Tennessee
Source: ClinicalTrials.gov public record
Updated Nov 10, 2013 · Synced Jun 25, 2026, 2:36 PM EDT