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Showing 1–24 of 105 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Young Healthy Adults Clear all
Not listed Phase 1 Interventional Accepts healthy volunteers

Pulmonary and Inflammatory Responses Following Exposure to a Low Concentration of Ozone or Clean Air

NCT05680831
View directory record Official record
Conditions
Lung Injury, Acute, Symptoms and Signs, Neutrophilia Acute
Interventions
0.070 ppm ozone concentration, Clean air (0.0 ppm ozone)
Biological
Lead sponsor
Martin W. Case
Federal
Eligibility
18 Years to 35 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 10, 2023 · Synced Jul 24, 2026, 2:05 AM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Development of a Real-time Controller to Estimate Walking Performance Using a Bilateral Ankle Exoskeleton

NCT07393971
View directory record Official record
Conditions
Healthy Young Adults
Interventions
Adaptive Torque Control System for Ankle Exoskeleton
Device
Lead sponsor
University of Nebraska
Other
Eligibility
19 Years to 35 Years
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Jun 1, 2026 · Synced Jul 24, 2026, 2:05 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Effectiveness of GlaxoSmithKline Biologicals S.A's Meningococcal Group B and Combined ABCWY Vaccines in Healthy Adolescents and Young Adults

NCT04502693
View directory record Official record
Conditions
Infections, Meningococcal
Interventions
rMenB+OMV NZ vaccine, Meningococcal Groups A, C, W and Y Conjugate Vaccine (MenACWY), Placebo, MenABCWY-1, MenABCWY-2, MenABCWY-3
Combination Product · Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
10 Years to 25 Years
Enrollment
3,657 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
64
States / cities
Chandler, Arizona • Glendale, Arizona • Jonesboro, Arkansas + 51 more
Source: ClinicalTrials.gov public record
Updated Mar 4, 2024 · Synced Jul 24, 2026, 2:05 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

The Influence of Baseline Sensitivity and Expectation on Exercise-induced Hypoalgesia in Young Healthy Adults

NCT03871504
View directory record Official record
Conditions
Healthy Subjects
Interventions
Submaximal isometric exercise
Other
Lead sponsor
Marquette University
Other
Eligibility
18 Years and older
Enrollment
250 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2022
U.S. locations
1
States / cities
Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Mar 11, 2019 · Synced Jul 24, 2026, 2:05 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study of the Pharmacokinetics of ASP1941 and the Effect on Glucose Concentrations in Male and Female Young and Elderly Healthy Adults

NCT01678287
View directory record Official record
Conditions
Healthy Volunteers, Pharmacokinetics of ASP1941
Interventions
ASP1941, Placebo
Drug
Lead sponsor
Astellas Pharma Global Development, Inc.
Industry
Eligibility
18 Years and older
Enrollment
65 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
Miramar, Florida
Source: ClinicalTrials.gov public record
Updated Sep 4, 2012 · Synced Jul 24, 2026, 2:05 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

QA102 Phase 1 Study in Healthy Young and Older Adult Subjects

NCT04894071
View directory record Official record
Conditions
Age-related Macular Degeneration
Interventions
QA102, Placebo
Drug
Lead sponsor
Smilebiotek Zhuhai Limited
Industry
Eligibility
18 Years to 75 Years
Enrollment
69 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Jan 13, 2022 · Synced Jul 24, 2026, 2:05 AM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Food Frequency Questionnaires in Estimating Food Nutrient Intake in Healthy Young Adults

NCT02610023
View directory record Official record
Conditions
Healthy Subject
Interventions
Questionnaire Administration, Laboratory Biomarker Analysis, Spectroscopy
Other · Device
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
20 Years to 50 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2026
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Nov 4, 2025 · Synced Jul 24, 2026, 2:05 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Effect of Lentils and Chickpeas on Gut Microbiome and Metabolic Health

NCT06914375
View directory record Official record
Conditions
Dysbiosis
Interventions
Goya Foods - Canned Chickpeas, Goya Foods - Canned Lentils, Control
Other
Lead sponsor
Florida State University
Other
Eligibility
18 Years to 30 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Tallahassee, Florida
Source: ClinicalTrials.gov public record
Updated Apr 12, 2026 · Synced Jul 24, 2026, 2:05 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Pilot Evaluation of a Healthy Lifestyle Intervention for Adolescent and Young Adult Survivors of Pediatric Cancer

NCT04839952
View directory record Official record
Conditions
Pediatric Cancer
Interventions
Healthy Lifestyles, Education-Only Control
Behavioral
Lead sponsor
Johns Hopkins All Children's Hospital
Other
Eligibility
15 Years to 25 Years
Enrollment
59 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
1
States / cities
St. Petersburg, Florida
Source: ClinicalTrials.gov public record
Updated Sep 4, 2023 · Synced Jul 24, 2026, 2:05 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Evaluation of Salt Sensitivity in Young Adults

NCT02588352
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Salt tablet
Dietary Supplement
Lead sponsor
NYU Langone Health
Other
Eligibility
21 Years to 30 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2015
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 18, 2016 · Synced Jul 24, 2026, 2:05 AM EDT
Suspended Not applicable Interventional Accepts healthy volunteers

Cardiovascular Effects of Exposure to Wood Smoke in Healthy Human Adults

NCT04297761
View directory record Official record
Conditions
Healthy
Interventions
Filtered Air, Wood Smoke
Other
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 35 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2027
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 11, 2025 · Synced Jul 24, 2026, 2:05 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Trial to Assess the Safety, Tolerability, and Immunogenicity of Bivalent rLP2086 Vaccine When Given to Healthy Young Adults Aged >=18 to <26 Years.

NCT01352845
View directory record Official record
Conditions
Healthy
Interventions
rLP2086, Placebo
Biological · Other
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 25 Years
Enrollment
3,301 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
35
States / cities
Mobile, Alabama • Mesa, Arizona • Tempe, Arizona + 28 more
Source: ClinicalTrials.gov public record
Updated Feb 22, 2016 · Synced Jul 24, 2026, 2:05 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Young Adult Influenza Vaccine Immunogenicity Substudy

NCT00170508
View directory record Official record
Conditions
Influenza
Interventions
Fluzone®
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 40 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 22, 2013 · Synced Jul 24, 2026, 2:05 AM EDT
Completed Not applicable Interventional

HealthSmart: Promoting Healthy Lifestyles for Young Adult Cancer Survivors Using Educational Videos

NCT03340532
View directory record Official record
Conditions
Environmental Exposure to Ultraviolet Light
Interventions
THE INFORMATION + APPEARANCE VIDEO, Information SunSmart video, Sleep hygiene video
Other
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
18 Years to 35 Years
Enrollment
266 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 5, 2022 · Synced Jul 24, 2026, 2:05 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Cortical Activation and Cognitive-Motor Learning

NCT04666181
View directory record Official record
Conditions
Dual-task, Healthy Adults
Interventions
Dual-task training
Behavioral
Lead sponsor
East Carolina University
Other
Eligibility
18 Years to 40 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Greenville, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 18, 2022 · Synced Jul 24, 2026, 2:05 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Human Papillomavirus Vaccine Immunogenicity and Safety Trial in Young Adult Women With GSK Biologicals Novel HPV Vaccine

NCT00359619
View directory record Official record
Conditions
Infections, Papillomavirus, Papillomavirus Vaccines
Interventions
CervarixTM, HPV investigational vaccine GSK568893A, different formulations
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 25 Years · Female only
Enrollment
383 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
4
States / cities
Denver, Colorado • Golden, Colorado • Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Jan 1, 2020 · Synced Jul 24, 2026, 2:05 AM EDT
Completed Not applicable Interventional Results available

Evaluation of SkillTalk for Autistic Young Adults

NCT06281171
View directory record Official record
Conditions
Autism Spectrum Disorder
Interventions
SkillTalk for Autistic Young Adults, Flyer Library
Other
Lead sponsor
dfusion Inc
Industry
Eligibility
18 Years to 28 Years
Enrollment
115 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
1
States / cities
Santa Cruz, California
Source: ClinicalTrials.gov public record
Updated May 20, 2025 · Synced Jul 24, 2026, 2:05 AM EDT
Withdrawn No phase listed Observational Accepts healthy volunteers

Normative Data of Brain Network Activation

NCT01742858
View directory record Official record
Conditions
Healthy Controls
Interventions
Not listed
Lead sponsor
ElMindA Ltd
Industry
Eligibility
15 Years to 30 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2013
U.S. locations
1
States / cities
Eugene, Oregon
Source: ClinicalTrials.gov public record
Updated Mar 31, 2016 · Synced Jul 24, 2026, 2:05 AM EDT
Completed Not applicable Interventional Results available

Physical Activity and Healthy Eating Among Young Adult Cancer Survivors

NCT05887401
View directory record Official record
Conditions
Physical Activity, Neoplasms, Cancer
Interventions
Core Intervention, Simplified Dietary Monitoring (Green), Simplified Dietary Monitoring (Red), Nutrition Goals (Yes), Nutrition Goals (No), Supportive Text Messages (Yes), Supportive Text Messages (No), Lesson Delivery (Once), Lesson Delivery (Weekly)
Behavioral
Lead sponsor
UNC Lineberger Comprehensive Cancer Center
Other
Eligibility
18 Years to 39 Years
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Dec 23, 2025 · Synced Jul 24, 2026, 2:05 AM EDT
Suspended Not applicable Interventional Accepts healthy volunteers

Efficacy of Respiratory Protection Against the Effects of Wood Smoke Exposure in Young Healthy Adults

NCT06066749
View directory record Official record
Conditions
Healthy
Interventions
Filtration of all PM and VOC's, Filtration of VOC's
Other
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 35 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 11, 2025 · Synced Jul 24, 2026, 2:05 AM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Blood Neurotrophic Factors in Adults

NCT00505349
View directory record Official record
Conditions
Healthy
Interventions
Computer-based cognitive training
Behavioral
Lead sponsor
Posit Science Corporation
Industry
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2009
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Feb 4, 2016 · Synced Jul 24, 2026, 2:05 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A/H5N1 Virus-Like Particle Antigen Dose Ranging Study With Adjuvant 2

NCT01596725
View directory record Official record
Conditions
Influenza (Pandemic)
Interventions
Monovalent Avian Influenza VLP (H5N1), Monovalent Avian Influenza VLP (H5N1); Adjuvant, Saline Placebo
Biological
Lead sponsor
Novavax
Industry
Eligibility
18 Years to 49 Years
Enrollment
333 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
5
States / cities
Anaheim, California • Miami, Florida • Pembroke Pines, Florida + 2 more
Source: ClinicalTrials.gov public record
Updated Feb 5, 2014 · Synced Jul 24, 2026, 2:05 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Mobile Health Intervention in Increasing HPV Vaccine Coverage Among Young Adult Gay and Bisexual Men

NCT02835755
View directory record Official record
Conditions
Healthy Subject
Interventions
Educational Intervention, Survey Administration
Other
Lead sponsor
Ohio State University Comprehensive Cancer Center
Other
Eligibility
18 Years to 25 Years · Male only
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 2, 2017 · Synced Jul 24, 2026, 2:05 AM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

Characterizing the Human Airway Immune Response to FluMist Vaccination

NCT07177417
View directory record Official record
Conditions
Healthy Young Adults, Influenza Vaccines, Influenza Vaccine Response
Interventions
FluMist, inactivated influenza vaccine, bronchoscopy
Biological · Procedure
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 40 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Sep 16, 2025 · Synced Jul 24, 2026, 2:05 AM EDT