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Showing 1–24 of 44 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Preschool Age Children Clear all
Not listed Phase 1Phase 2 Interventional

Improving Primary Care to Prevent Childhood Obesity

NCT00377767
View directory record Official record
Conditions
Overweight in Preschool Age Children, Risk of Overweight in Preschool Age Children
Interventions
To change structure and roles of primary care teams to optimize prevention of obesity
Behavioral
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
2 Years to 6 Years
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 17, 2006 · Synced Sep 15, 2026, 9:43 AM EDT
Completed Phase 3 Interventional

Safety and Efficacy Study of Carvedilol to Treat Children With Congestive Heart Failure

NCT00052026
View directory record Official record
Conditions
Congestive Heart Failure
Interventions
carvedilol, placebo
Drug
Lead sponsor
Shaddy, Robert, M.D.
Individual
Eligibility
1 Day to 17 Years
Enrollment
161 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2006
U.S. locations
21
States / cities
Birmingham, Alabama • Los Angeles, California • Palo Alto, California + 16 more
Source: ClinicalTrials.gov public record
Updated Dec 24, 2008 · Synced Sep 15, 2026, 9:43 AM EDT
Suspended Not applicable Interventional Accepts healthy volunteers

Parent-Based Physical Activity Intervention for Black Families

NCT05910671
View directory record Official record
Conditions
Physical Inactivity
Interventions
Physical Activity Phone Calls and Notebook
Behavioral
Lead sponsor
East Carolina University
Other
Eligibility
19 Years to 65 Years
Enrollment
52 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Greenville, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 2, 2023 · Synced Sep 15, 2026, 9:43 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Trial of KEEP-P, a Preventive Intervention for Foster Preschoolers (KEEP-P)

NCT03106636
View directory record Official record
Conditions
Child Behavior
Interventions
KEEP-P+
Behavioral
Lead sponsor
University of Oregon
Other
Eligibility
30 Months to 6 Years
Enrollment
442 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2018
U.S. locations
1
States / cities
Eugene, Oregon
Source: ClinicalTrials.gov public record
Updated Jul 13, 2020 · Synced Sep 15, 2026, 9:43 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Effects of Docosahexaenoic Acid (DHA) on Cognitive Function in Children 4 Years of Age

NCT00351624
View directory record Official record
Conditions
Healthy
Interventions
DHA, placebo
Behavioral
Lead sponsor
dsm-firmenich Switzerland AG
Industry
Eligibility
4 Years to 4 Years
Enrollment
216 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
10
States / cities
Los Angeles, California • Stockbridge, Georgia • DeKalb, Illinois + 7 more
Source: ClinicalTrials.gov public record
Updated May 19, 2014 · Synced Sep 15, 2026, 9:43 AM EDT
Recruiting Phase 4 Interventional

Evaluation of SPN-812 (Viloxazine Extended-release Capsule) in Preschool-age Children With ADHD

NCT04781140
View directory record Official record
Conditions
Attention-Deficit/Hyperactivity Disorder
Interventions
100mg SPN-812, Placebo
Drug
Lead sponsor
Supernus Pharmaceuticals, Inc.
Industry
Eligibility
48 Months to 69 Months
Enrollment
286 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
47
States / cities
Saraland, Alabama • Little Rock, Arkansas • Anaheim, California + 41 more
Source: ClinicalTrials.gov public record
Updated Sep 10, 2026 · Synced Sep 15, 2026, 9:43 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Breastfeeding in Infancy and Food Intake in Preschool-Aged Children

NCT00994487
View directory record Official record
Conditions
Childhood Obesity, Breastfeeding
Interventions
High Energy Density Preload, Low Energy Density Preload
Other
Lead sponsor
The University of Tennessee, Knoxville
Other
Eligibility
3 Years to 5 Years · Female only
Enrollment
7 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Knoxville, Tennessee
Source: ClinicalTrials.gov public record
Updated Apr 4, 2018 · Synced Sep 15, 2026, 9:43 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Retrieval-Based Word Learning in Developmental Language Disorder During Book Reading II

NCT07048392
View directory record Official record
Conditions
Developmental Language Disorder and Language Impairment, Specific Language Impairment, Language Development
Interventions
Retrieval-based word learning: Repeated Spaced Retrieval condition, Retrieval-based word learning: Repeated Study condition
Behavioral
Lead sponsor
Purdue University
Other
Eligibility
48 Months to 71 Months
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated Jul 3, 2025 · Synced Sep 15, 2026, 9:43 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Nutrition and Parenting Program for Fathers and Their Pre-school Age Children

NCT03071419
View directory record Official record
Conditions
Pediatric Obesity
Interventions
Nutrition and Parenting Intervention
Behavioral
Lead sponsor
University of Connecticut
Other
Eligibility
18 Years and older · Male only
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
2
States / cities
East Hartford, Connecticut • Manchester, Connecticut
Source: ClinicalTrials.gov public record
Updated Jun 4, 2019 · Synced Sep 15, 2026, 9:43 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Does Portion Size Influence Intake of Low-Energy-Dense Foods in Preschool-aged Children?

NCT00936507
View directory record Official record
Conditions
Caloric Intake
Interventions
Energy Density/Portion Size
Other
Lead sponsor
The University of Tennessee, Knoxville
Other
Eligibility
3 Years and older
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008
U.S. locations
1
States / cities
Knoxville, Tennessee
Source: ClinicalTrials.gov public record
Updated Apr 4, 2018 · Synced Sep 15, 2026, 9:43 AM EDT
Completed Phase 2 Interventional Results available

Safety, Tolerability, Pharmacokinetic, and Efficacy Study of SPD489 in Preschool Children With Attention-deficit/Hyperactivity Disorder

NCT02402166
View directory record Official record
Conditions
Attention Deficit Hyperactivity Disorder (ADHD)
Interventions
SPD489
Drug
Lead sponsor
Shire
Industry
Eligibility
4 Years to 5 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
6
States / cities
Newport Beach, California • Baltimore, Maryland • Las Vegas, Nevada + 3 more
Source: ClinicalTrials.gov public record
Updated Jun 7, 2021 · Synced Sep 15, 2026, 9:43 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Launch II: A Pilot Randomized Control Trial of a Clinic and Clinic Plus Home Intervention for Preschool Obesity

NCT01419951
View directory record Official record
Conditions
Obesity
Interventions
Clinic + Home Behavioral Intervention, Pediatrician Counseling, Clinic Only Behavioral Intervention
Behavioral · Other
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
2 Years to 5 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2014
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Oct 21, 2014 · Synced Sep 15, 2026, 9:43 AM EDT
Completed Phase 3 Interventional

Treatment of Attention Deficit Hyperactivity Disorder in Preschool-Age Children (PATS)

NCT00018863
View directory record Official record
Conditions
Attention Deficit Disorder With Hyperactivity
Interventions
Methylphenidate
Drug
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
3 Years to 5 Years
Enrollment
165 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2006
U.S. locations
6
States / cities
Irvine, California • Los Angeles, California • Baltimore, Maryland + 2 more
Source: ClinicalTrials.gov public record
Updated Dec 1, 2020 · Synced Sep 15, 2026, 9:43 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Retrieval-Based Word Learning in Developmental Language Disorder During Book Reading

NCT06026124
View directory record Official record
Conditions
Developmental Language Disorder, Specific Language Impairment, Language Development
Interventions
Retrieval-based word learning: Repeated Spaced Retrieval condition, Retrieval-based word learning: Repeated Study condition
Behavioral
Lead sponsor
Purdue University
Other
Eligibility
48 Months to 71 Months
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
2
States / cities
Indianapolis, Indiana • West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated Sep 2, 2026 · Synced Sep 15, 2026, 9:43 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of Yoga on Attention, Impulsivity and Hyperactivity in Pre-school Age Children

NCT02642666
View directory record Official record
Conditions
ADHD
Interventions
Children's Yoga
Behavioral
Lead sponsor
University of California, Davis
Other
Eligibility
3 Years to 5 Years
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated May 29, 2017 · Synced Sep 15, 2026, 9:43 AM EDT
Recruiting Not applicable Interventional

Engaging Mental Health Services for Preschoolers at Risk

NCT07054554
View directory record Official record
Conditions
Mental Health Disorder, Family Navigation, Minoritized Population, Preschool Age Children
Interventions
NTRI-MH
Other
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
18 Years and older
Enrollment
106 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Aug 23, 2025 · Synced Sep 15, 2026, 9:43 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Influence of Dietary Variety and Course Sequence on Fruit Intake in Preschool-Aged Children

NCT01414699
View directory record Official record
Conditions
Caloric Intake
Interventions
Variety, Non-Variety
Behavioral
Lead sponsor
The University of Tennessee, Knoxville
Other
Eligibility
3 Years to 6 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2015
U.S. locations
1
States / cities
Knoxville, Tennessee
Source: ClinicalTrials.gov public record
Updated Apr 4, 2018 · Synced Sep 15, 2026, 9:43 AM EDT
Completed Phase 3 Interventional Results available

Safety and Tolerability Study of SPD489 in Preschool Children Aged 4-5 Years, Diagnosed With Attention-deficit/Hyperactivity Disorder

NCT02466386
View directory record Official record
Conditions
Attention Deficit Hyperactivity Disorder (ADHD)
Interventions
SPD489
Drug
Lead sponsor
Shire
Industry
Eligibility
4 Years to 5 Years
Enrollment
113 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2020
U.S. locations
50
States / cities
Dothan, Alabama • Little Rock, Arkansas • Imperial, California + 41 more
Source: ClinicalTrials.gov public record
Updated Mar 4, 2021 · Synced Sep 15, 2026, 9:43 AM EDT
Active, not recruiting Not applicable Interventional

Optimizing Attention and Sleep Intervention Study

NCT05683756
View directory record Official record
Conditions
Attention Deficit and Disruptive Behavior Disorders, Attention Deficit Hyperactivity Disorder, Child, Preschool, Sleep, Sleep Disturbance
Interventions
Brief Parent Behavioral Intervention, Sleep-Focused Parent Behavioral Intervention
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
3 Years to 5 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
7
States / cities
Cranberry Township, Pennsylvania • Monroeville, Pennsylvania • New Castle, Pennsylvania + 1 more
Source: ClinicalTrials.gov public record
Updated Jun 8, 2026 · Synced Sep 15, 2026, 9:43 AM EDT
Recruiting Not applicable Interventional

School Readiness in Preschool-Aged Children With Cerebral Palsy

NCT06083220
View directory record Official record
Conditions
Unilateral Cerebral Palsy, School Readiness
Interventions
Smart Start - School Readiness Program
Behavioral
Lead sponsor
Texas Scottish Rite Hospital for Children
Other
Eligibility
36 Months to 71 Months
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Frisco, Texas
Source: ClinicalTrials.gov public record
Updated Apr 7, 2025 · Synced Sep 15, 2026, 9:43 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Reducing Pesticide Exposures in Child Care Centers

NCT03319927
View directory record Official record
Conditions
Children, Only, Risk Reduction, Environmental Exposure
Interventions
Changes in pesticide exposure, IPM Practices, Educational Workshops
Behavioral
Lead sponsor
University of California, San Francisco
Other
Eligibility
3 Years to 75 Years
Enrollment
987 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2024
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Feb 16, 2026 · Synced Sep 15, 2026, 9:43 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

The Healthy Child Development Program Study

NCT04622969
View directory record Official record
Conditions
Child Behavior, Child Health, Child, Preschool, Parents
Interventions
Healthy Child Development Program
Behavioral
Lead sponsor
University of South Carolina
Other
Eligibility
3 Years and older
Enrollment
63 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
Columbia, South Carolina
Source: ClinicalTrials.gov public record
Updated May 5, 2025 · Synced Sep 15, 2026, 9:43 AM EDT
Completed Not applicable Interventional

The Parenting Young Children Check-up Evaluation

NCT04628546
View directory record Official record
Conditions
Disruptive Behavior, Parenting
Interventions
The Parenting Young Children Check-up Initial Check-up and Text Messages, The Parenting Young Children Check-up Flier and Text Messages
Behavioral
Lead sponsor
Wayne State University
Other
Eligibility
18 Years and older
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Nov 3, 2021 · Synced Sep 15, 2026, 9:43 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Echinacea, Propolis and Vitamin C for URI Prevention in Preschoolers

NCT00231218
View directory record Official record
Conditions
Common Cold, Gastroenteritis
Interventions
dietary supplement--echinacea, propolis, and vitamin c
Drug
Lead sponsor
The Cleveland Clinic
Other
Eligibility
3 Years to 6 Years
Enrollment
104 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 13, 2006 · Synced Sep 15, 2026, 9:43 AM EDT