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Showing 1–24 of 35 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Individuality Clear all
Not listed No phase listed Observational Accepts healthy volunteers

Food Form & Energy Intake

NCT05258097
View directory record Official record
Conditions
Appetite Self-regulation, Pediatric Obesity
Interventions
Not listed
Lead sponsor
Penn State University
Other
Eligibility
54 Months to 83 Months
Enrollment
78 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
2
States / cities
University Park, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 30, 2023 · Synced Jun 25, 2026, 3:13 PM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Vaccination Responses in Young and Older Adults

NCT02654704
View directory record Official record
Conditions
Individuality, Healthy, Asthma, Immune System and Related Disorders
Interventions
Pneumococcal Vaccination
Biological
Lead sponsor
Michigan State University
Other
Eligibility
18 Years and older
Enrollment
61 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2020
U.S. locations
1
States / cities
East Lansing, Michigan
Source: ClinicalTrials.gov public record
Updated Jul 28, 2020 · Synced Jun 25, 2026, 3:13 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

CD36 and Human Fat Taste Perception

NCT02699567
View directory record Official record
Conditions
Obesity
Interventions
No intervention
Other
Lead sponsor
Washington University School of Medicine
Other
Eligibility
21 Years to 50 Years
Enrollment
97 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2014
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Mar 3, 2016 · Synced Jun 25, 2026, 3:13 PM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Vaccination Response in Individual Monozygotic Twins

NCT02296359
View directory record Official record
Conditions
Individuality, Asthma, Immune System and Related Disorders
Interventions
Influenza Vaccination
Biological
Lead sponsor
Michigan State University
Other
Eligibility
18 Years to 80 Years
Enrollment
1 participant
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
East Lansing, Michigan
Source: ClinicalTrials.gov public record
Updated Aug 13, 2015 · Synced Jun 25, 2026, 3:13 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Interventions in Mathematics and Cognitive Skills

NCT05201534
View directory record Official record
Conditions
Math Learning Disability, Child Development, Developmental Disability, Learning Disabilities, Learning Disabled, Learning Curve, Mathematics Disorder, Dyscalculia, Dyscalculia, Primary, Dyscalculia, Acquired, Specific Learning Disorder, With Impairment in Mathematics, Individuality, Behavior, Child, Behavior and Behavior Mechanisms, Behavior, Decision Making, Neuronal Plasticity, Cognition, Cognition Disorder, Cognitive Dysfunction, Cognitive Change, Cognitive Impairment, Mild, Cognitive Developmental Delay, Cognitive Orientation, Cognitive Delay, Mild, Cognitive Deficits, Mild, Cognitive Abnormality, Neuroscience
Interventions
Interventions in Mathematics and Cognitive Skills - Experimental, Interventions in Mathematics and Cognitive Skills - Active Comparator
Other
Lead sponsor
Stanford University
Other
Eligibility
6 Years to 12 Years
Enrollment
180 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2026
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Jun 24, 2026 · Synced Jun 25, 2026, 3:13 PM EDT
Recruiting Phase 2 Interventional Accepts healthy volunteers

Exercise to Improve Brain Health in Older African Americans

NCT05597124
View directory record Official record
Conditions
Aging, Alzheimer Disease, Healthy Aging, Cognitive Change
Interventions
Cardio-Dance Fitness, Strength, Flexibility & Balance
Behavioral
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
60 Years and older
Enrollment
280 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Newark, New Jersey
Source: ClinicalTrials.gov public record
Updated Feb 19, 2026 · Synced Jun 25, 2026, 3:13 PM EDT
Completed Phase 4 Interventional Results available

Effectiveness of Varenicline: Testing Individual Differences

NCT01228175
View directory record Official record
Conditions
Smoking Addiction
Interventions
Placebo, Varenicline
Drug
Lead sponsor
The Mind Research Network
Other
Eligibility
18 Years to 55 Years
Enrollment
218 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
1
States / cities
Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated May 8, 2018 · Synced Jun 25, 2026, 3:13 PM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Alcohol Sensitivity Among Older Adults Who Consume Alcohol

NCT07636447
View directory record Official record
Conditions
Healthy Adult Participants
Interventions
Alcohol (Oral), Placebo Control
Other
Lead sponsor
University of Florida
Other
Eligibility
65 Years to 80 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Jun 8, 2026 · Synced Jun 25, 2026, 3:13 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers Results available

Individual Differences in Drug Response

NCT03809546
View directory record Official record
Conditions
Differential Female Response to Δ9-tetrahydrocannabinol (THC)
Interventions
Dronabinol, dextrose
Drug
Lead sponsor
University of Chicago
Other
Eligibility
18 Years to 35 Years · Female only
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 2, 2024 · Synced Jun 25, 2026, 3:13 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Individual Differences in Diabetes Risk: Role of Slow WaveSleep

NCT00989378
View directory record Official record
Conditions
Sleep, Diabetes
Interventions
baseline study
Behavioral
Lead sponsor
University of Chicago
Other
Eligibility
18 Years to 20 Years
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2010
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 4, 2013 · Synced Jun 25, 2026, 3:13 PM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Can Computational Measures of Task Performance Predict Psychiatric Symptoms and Changes in Symptom Severity Across Time

NCT06705179
View directory record Official record
Conditions
Behavior, Depressive Disorder, Anxiety Disorders, Obsessive Compulsive Disorder (OCD)
Interventions
Behavioral task performance
Behavioral
Lead sponsor
California Institute of Technology
Other
Eligibility
18 Years to 65 Years
Enrollment
1,100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2029
U.S. locations
2
States / cities
Los Angeles, California • Pasadena, California
Source: ClinicalTrials.gov public record
Updated Nov 25, 2024 · Synced Jun 25, 2026, 3:13 PM EDT
Recruiting No phase listed Observational

Individual Differences in Gait and Osteoarthritis Pain

NCT07308873
View directory record Official record
Conditions
Knee Osteoarthritis (OA), Chronic Pain, Chronic Knee Pain
Interventions
Not listed
Lead sponsor
University of Pittsburgh
Other
Eligibility
45 Years to 80 Years
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 28, 2026 · Synced Jun 25, 2026, 3:13 PM EDT
Recruiting Not applicable Interventional

More and Less Social Comprehension

NCT06116552
View directory record Official record
Conditions
Autism Spectrum Disorder
Interventions
More Social Stories, Less Social Stories
Behavioral
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
9 Years to 12 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Lawrence, Kansas
Source: ClinicalTrials.gov public record
Updated Apr 3, 2025 · Synced Jun 25, 2026, 3:13 PM EDT
Completed No phase listed Observational Accepts healthy volunteers Results available

Brain and Genetic Predictors of Individual Differences in Pain and Analgesia

NCT03781570
View directory record Official record
Conditions
Pain, Acute
Interventions
Placebo Cream, Control Cream
Behavioral
Lead sponsor
Trustees of Dartmouth College
Other
Eligibility
18 Years to 55 Years
Enrollment
541 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2023
U.S. locations
1
States / cities
Boulder, Colorado
Source: ClinicalTrials.gov public record
Updated Jun 3, 2025 · Synced Jun 25, 2026, 3:13 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Individual Differences in Children's Susceptibility to Overeating

NCT01905293
View directory record Official record
Conditions
Obesity
Interventions
Feeding Study
Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
8 Years to 10 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2011
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 22, 2013 · Synced Jun 25, 2026, 3:13 PM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Individual Differences in Placebo Analgesic Effects

NCT04669093
View directory record Official record
Conditions
Healthy
Interventions
Placebo cream- "promotion" suggestion, Placebo cream- "prevention" suggestion, Control cream
Behavioral
Lead sponsor
Trustees of Dartmouth College
Other
Eligibility
18 Years to 55 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Hanover, New Hampshire
Source: ClinicalTrials.gov public record
Updated Dec 8, 2025 · Synced Jun 25, 2026, 3:13 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

An Investigation of Attentional and Inhibitory Processes During Active Visual Search in Humans

NCT06587113
View directory record Official record
Conditions
Eye Movements, Attention, Executive Function
Interventions
Contour Search Task, Stop signal Task, Useful field of View, Attentional capture search task
Other · Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 65 Years
Enrollment
225 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Feb 19, 2026 · Synced Jun 25, 2026, 3:13 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Gut Microbial Metabolites of Apple Polyphenols

NCT06107192
View directory record Official record
Conditions
Healthy, Controlled Feeding Trial
Interventions
Dietary intervention - apple catechin diet, Dietary intervention - low catechin diet
Other
Lead sponsor
University of Maryland, College Park
Other
Eligibility
18 Years to 45 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
College Park, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 21, 2025 · Synced Jun 25, 2026, 3:13 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Individual Differences in Reward and Impulse Control

NCT01621607
View directory record Official record
Conditions
Drug Addiction, Vulnerability to Substance Addiction
Interventions
Not listed
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 55 Years
Enrollment
89 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2017
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 8, 2019 · Synced Jun 25, 2026, 3:13 PM EDT
Completed Not applicable Interventional Results available

Gaming for Autism to Mold Executive Skills Project

NCT02361762
View directory record Official record
Conditions
Autism Spectrum Disorders
Interventions
Computerized executive control training
Behavioral
Lead sponsor
Boston Children's Hospital
Other
Eligibility
7 Years to 11 Years
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2017
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 27, 2021 · Synced Jun 25, 2026, 3:13 PM EDT
Active, not recruiting Not applicable Interventional

Chicago Social Drinking Project

NCT00961792
View directory record Official record
Conditions
Alcoholism
Interventions
Ethanol, Placebo, Diphenhydramine, Caffeine
Drug
Lead sponsor
University of Chicago
Other
Eligibility
21 Years to 65 Years
Enrollment
800 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2027
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 8, 2026 · Synced Jun 25, 2026, 3:13 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Consistency in Individual Differences in Energy Intake Following Acute Exercise

NCT01645956
View directory record Official record
Conditions
Obesity, Sedentary
Interventions
Not listed
Lead sponsor
The Miriam Hospital
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Feb 18, 2015 · Synced Jun 25, 2026, 3:13 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Examining the Biological Factors That Affect Sleep Duration

NCT00607204
View directory record Official record
Conditions
Sleep, Circadian Rhythm, Cognitive Performance
Interventions
Not listed
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 35 Years
Enrollment
119 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2011
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 30, 2013 · Synced Jun 25, 2026, 3:13 PM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Investigating Individual Differences in Speech Motor Skills in Neurotypical Speakers and Persons With Disordered Speech

NCT07459803
View directory record Official record
Conditions
Stuttering, Developmental, Dyslexia, Healthy Participants
Interventions
Unpredictable auditory feedback perturbation: 2 behavioral sessions, Unpredictable auditory feedback perturbation during tCS: 3 behavioral sessions, Sustained F1 auditory feedback perturbation, Sustained F0 auditory feedback perturbation, Reflexive somatosensory perturbation, Anodal tCS targeting pSTG and vSSC, Anodal tCS targeting left or right vPMC, Sham tCS targeting pSTG or vSSC, Sham tCS targeting left vPMC or right vPMC
Behavioral · Other
Lead sponsor
Boston University Charles River Campus
Other
Eligibility
18 Years to 50 Years
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2030
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 11, 2026 · Synced Jun 25, 2026, 3:13 PM EDT