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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Physiology Clear all
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Pharmacokinetics of Voxilaprevir in Adults With Normal Hepatic Function and Moderate or Severe Hepatic Impairment

NCT02397707
View directory record Official record
Conditions
HCV Infection
Interventions
Voxilaprevir
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years to 70 Years
Enrollment
33 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
2
States / cities
Orlando, Florida • San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Apr 8, 2020 · Synced Jul 23, 2026, 4:25 PM EDT
Completed Not applicable Interventional

Acupuncture for the Treatment of Vulvodynia

NCT02197429
View directory record Official record
Conditions
Vulvodynia, Vulvar Vestibulitis, Pain, Dyspareunia, Female Sexual Dysfunction Due to Physical Condition
Interventions
Acupuncture
Other
Lead sponsor
Schlaeger, Judith M., CNM, LAc, PhD
Individual
Eligibility
18 Years and older · Female only
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012
U.S. locations
1
States / cities
Glenview, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 21, 2014 · Synced Jul 23, 2026, 4:25 PM EDT
Completed Not applicable Interventional

Home-Based Automated Therapy of Arm Function After Stroke Via Tele-Rehabilitation

NCT01157195
View directory record Official record
Conditions
Stroke
Interventions
Tele-AutoCITE, CI therapy
Behavioral
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
19 Years and older
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2018
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Sep 27, 2018 · Synced Jul 23, 2026, 4:25 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Feasibility Evaluation of Daily Disposable Toric Soft Contact Lenses Manufactured With an Alternative Hydration Process

NCT05427539
View directory record Official record
Conditions
Ocular Physiology
Interventions
TEST LENS, CONTROL LENS
Device
Lead sponsor
Johnson & Johnson Vision Care, Inc.
Industry
Eligibility
18 Years to 39 Years
Enrollment
66 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
6
States / cities
Jacksonville, Florida • Maitland, Florida • Vestal, New York + 3 more
Source: ClinicalTrials.gov public record
Updated Oct 1, 2023 · Synced Jul 23, 2026, 4:25 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

A Study of Visual Effects of Erectile Dysfunction Medications Dosed Daily for Six Months

NCT00333281
View directory record Official record
Conditions
Erectile Dysfunction
Interventions
tadalafil
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
30 Years to 65 Years · Male only
Enrollment
198 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2006
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Oct 24, 2007 · Synced Jul 23, 2026, 4:25 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Parallel Effects of Schizophrenia and N-methyl-D-aspartate (NMDA) Antagonism

NCT02675530
View directory record Official record
Conditions
Schizophrenia
Interventions
ketamine
Drug
Lead sponsor
Yale University
Other
Eligibility
21 Years to 45 Years
Enrollment
33 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2011
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Feb 4, 2016 · Synced Jul 23, 2026, 4:25 PM EDT
Recruiting No phase listed Observational

Oral and Swallowing Function in Older Adults

NCT06368830
View directory record Official record
Conditions
Oropharyngeal Dysphagia
Interventions
3-ounce water swallow test, Kayser-Jones Brief Oral Health Status Examination (BOHSE), Tongue pressure, Test of Masticating and Swallowing Solids (TOMASS), Respiratory function tests
Diagnostic Test
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
60 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated May 18, 2026 · Synced Jul 23, 2026, 4:25 PM EDT
Completed Not applicable Interventional

Effect of Nightly Versus Prn Sildenafil on Early Return of Erectile Function Following Laparoscopic Radical Prostatectomy

NCT00511498
View directory record Official record
Conditions
Prostate Cancer
Interventions
Sildenafil
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 64 Years · Male only
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 30, 2008 · Synced Jul 23, 2026, 4:25 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Alcohol and Neural Cardiovascular Control in Binge Drinkers

NCT03567434
View directory record Official record
Conditions
Binge Drinking
Interventions
Alcohol vs. Placebo
Other
Lead sponsor
Baylor University
Other
Eligibility
21 Years to 40 Years
Enrollment
69 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2022
U.S. locations
1
States / cities
Bozeman, Montana
Source: ClinicalTrials.gov public record
Updated Sep 23, 2024 · Synced Jul 23, 2026, 4:25 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Reproductive Axis Maturation in the Early Post-Menarchal Years

NCT03986021
View directory record Official record
Conditions
Reproductive Physiological Processes, Pediatrics, Adolescent Health, Adolescent Development
Interventions
Not listed
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
8 Years to 65 Years · Female only
Enrollment
400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2029
U.S. locations
1
States / cities
Research Triangle Park, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 7, 2026 · Synced Jul 23, 2026, 4:25 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of Cold Adaptation on Skin Blood Flow, Hand Function, and Comfort in Healthy Adults

NCT05464758
View directory record Official record
Conditions
Cold Exposure
Interventions
Repeated cold exposure
Other
Lead sponsor
United States Army Research Institute of Environmental Medicine
Federal
Eligibility
18 Years to 39 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Natick, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 25, 2025 · Synced Jul 23, 2026, 4:25 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Pre-diabetes in Subject With Impaired Fasting Glucose (IFG) and Impaired Glucose Tolerance (IGT)

NCT02969798
View directory record Official record
Conditions
Diabetes Mellitus, Type 2, Impaired Glucose Tolerance (IGT), Impaired Fasting Glucose (IFG)
Interventions
Dapagliflozin, Saxagliptin, Pioglitazone, Metformin
Drug
Lead sponsor
The University of Texas Health Science Center at San Antonio
Other
Eligibility
18 Years to 65 Years
Enrollment
700 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2027
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Aug 26, 2025 · Synced Jul 23, 2026, 4:25 PM EDT
Completed No phase listed Observational

Pulmonary Physiology and Systemic Inflammatory in EO Pulmonary Events With Brigatinib Use in NSCLC and Other Diseases

NCT03389399
View directory record Official record
Conditions
Non-Small Cell Lung Cancer
Interventions
Not listed
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 100 Years
Enrollment
18 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
4
States / cities
Aurora, Colorado • Pittsburgh, Pennsylvania • Nashville, Tennessee + 1 more
Source: ClinicalTrials.gov public record
Updated Mar 24, 2025 · Synced Jul 23, 2026, 4:25 PM EDT
Not listed No phase listed Observational

Cardiopulmonary and Right Ventricular Function in Health and Disease

NCT04147299
View directory record Official record
Conditions
Heart Failure, Athletes Heart
Interventions
Not listed
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 89 Years
Enrollment
80 participants
Timeline
2020 – 2025
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated May 17, 2023 · Synced Jul 23, 2026, 4:25 PM EDT
Completed No phase listed Observational

Biomarker Study for Heart Failure in Children With Single Ventricle Physiology

NCT00571233
View directory record Official record
Conditions
Tricuspid Atresia, Hypoplastic Left Heart Syndrome, Unbalanced AV Canal
Interventions
Not listed
Lead sponsor
University of California, San Francisco
Other
Eligibility
1 Month to 6 Years
Enrollment
71 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2015
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated May 13, 2015 · Synced Jul 23, 2026, 4:25 PM EDT
Completed Phase 2 Interventional Results available

Atorvastatin for Microvascular Endothelial Function and Raynaud in Early Diffuse Scleroderma

NCT02370784
View directory record Official record
Conditions
Scleroderma
Interventions
atorvastatin, Placebo
Drug
Lead sponsor
Robyn T. Domsic, MD, MPH
Other
Eligibility
18 Years to 70 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2019
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 11, 2020 · Synced Jul 23, 2026, 4:25 PM EDT
Completed Phase 2 Interventional Results available

A Study to Evaluate the Effect of SAGE-718 on Cognitive Function in Participants With Huntington's Disease (HD)

NCT05107128
View directory record Official record
Conditions
Huntington's Disease
Interventions
SAGE-718, Placebo
Drug
Lead sponsor
Supernus Pharmaceuticals, Inc.
Industry
Eligibility
25 Years to 65 Years
Enrollment
189 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
34
States / cities
Little Rock, Arkansas • La Jolla, California • Los Angeles, California + 28 more
Source: ClinicalTrials.gov public record
Updated Sep 14, 2025 · Synced Jul 23, 2026, 4:25 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Study of SSP-004184 (SPD602) in Healthy Adults and Subjects With Impaired Liver Function

NCT01732263
View directory record Official record
Conditions
Hepatic Impairment, Healthy
Interventions
SSP-004184
Drug
Lead sponsor
Shire
Industry
Eligibility
18 Years to 65 Years
Enrollment
44 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 Jul 18, 2021 · Synced Jul 23, 2026, 4:25 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Postoperative Gastric Point of Care Ultrasound (G-POCUS) in Abdominal Surgery

NCT05796063
View directory record Official record
Conditions
Ileus Postoperative, Postoperative Nausea and Vomiting
Interventions
gastric point of care ultrasound
Diagnostic Test
Lead sponsor
Thomas Jefferson University
Other
Eligibility
18 Years and older
Enrollment
128 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 6, 2023 · Synced Jul 23, 2026, 4:25 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Juice Plus+® Supplementation on Endothelial Function in Overweight Men

NCT01533987
View directory record Official record
Conditions
Overweight and Obesity
Interventions
Juice Plus
Dietary Supplement
Lead sponsor
Griffin Hospital
Other
Eligibility
18 Years to 75 Years · Male only
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2010
U.S. locations
1
States / cities
Derby, Connecticut
Source: ClinicalTrials.gov public record
Updated Feb 15, 2012 · Synced Jul 23, 2026, 4:25 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Causal Role of Frontostriatal Circuitry in Goal-directed Behavior

NCT05593965
View directory record Official record
Conditions
Executive Function
Interventions
Delta-beta TMS, Theta-gamma TMS, Arrhythmic TMS
Device
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 35 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 16, 2024 · Synced Jul 23, 2026, 4:25 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Study of Nalbuphine ER in Participants With Hepatic Impairment

NCT04020016
View directory record Official record
Conditions
Hepatic Impairment
Interventions
Nalbuphine ER
Drug
Lead sponsor
Trevi Therapeutics
Industry
Eligibility
18 Years to 80 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
3
States / cities
Miami, Florida • Orlando, Florida
Source: ClinicalTrials.gov public record
Updated Mar 18, 2026 · Synced Jul 23, 2026, 4:25 PM EDT
Active, not recruiting Not applicable Interventional

Transcranial Direct Current Stimulation for Cognitive Improvement in Parkinson's Patients

NCT03191916
View directory record Official record
Conditions
Parkinson Disease
Interventions
transcranial direct current stimulation, Sham (for transcranial direct current stimulation)
Device
Lead sponsor
Sanford Health
Other
Eligibility
Not listed
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2025
U.S. locations
1
States / cities
Fargo, North Dakota
Source: ClinicalTrials.gov public record
Updated Mar 3, 2025 · Synced Jul 23, 2026, 4:25 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers Results available

Cervical Transcutaneous SCS for TBI

NCT07147816
View directory record Official record
Conditions
Traumatic Brain Injury, TBI (Traumatic Brain Injury)
Interventions
Transcutaneous electrical stimulation of the cervical spinal cord (tSCS)
Device
Lead sponsor
Roberto de Freitas
Other
Eligibility
21 Years to 70 Years
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 14, 2026 · Synced Jul 23, 2026, 4:25 PM EDT