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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
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 Jul 23, 2026, 4:59 PM 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 Jul 23, 2026, 4:59 PM 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 Jul 23, 2026, 4:59 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Short bouTs of Exercise for Preschool-age Children

NCT01588392
View directory record Official record
Conditions
Physical Activity
Interventions
Short bouts of structured physical activity, Unstructured physical activity
Behavioral
Lead sponsor
University of Massachusetts, Amherst
Other
Eligibility
3 Years to 5 Years
Enrollment
323 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
1
States / cities
Springfield, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 7, 2023 · Synced Jul 23, 2026, 4:59 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Feasibility and Fidelity of a Gross Motor-based Physical Activity Intervention on Cognition in Preschool-age Children

NCT05949866
View directory record Official record
Conditions
Activity, Motor
Interventions
Movement and Cognition Intervention Group, Health Tracker Group (Control Group)
Behavioral
Lead sponsor
University of Massachusetts, Amherst
Other
Eligibility
3 Years to 5 Years
Enrollment
112 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Amherst, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 25, 2025 · Synced Jul 23, 2026, 4:59 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Retrieval-Based Word Learning in Developmental Language Disorder: Verb Learning

NCT06001866
View directory record Official record
Conditions
Developmental Language Disorder, Specific Language Impairment, Language Development
Interventions
Retrieval-based verb learning: Repeated Spaced Retrieval condition, Retrieval-based verb learning: Repeated Study condition
Behavioral
Lead sponsor
Purdue University
Other
Eligibility
48 Months to 71 Months
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated Aug 12, 2025 · Synced Jul 23, 2026, 4:59 PM EDT
Completed Not applicable Interventional Results available

Omnipod Horizon™ Automated Glucose Control System Preschool Cohort

NCT04476472
View directory record Official record
Conditions
Type 1 Diabetes Mellitus
Interventions
Omnipod Horizon™ Automated Glucose Control System
Device
Lead sponsor
Insulet Corporation
Industry
Eligibility
2 Years to 5 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
10
States / cities
Palo Alto, California • Denver, Colorado • New Haven, Connecticut + 7 more
Source: ClinicalTrials.gov public record
Updated Feb 13, 2024 · Synced Jul 23, 2026, 4:59 PM 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 Jul 23, 2026, 4:59 PM EDT
Completed Phase 3 Interventional Results available

Safety and Efficacy Study in Preschool Children Aged 4-5 Years With Attention-deficit/Hyperactivity Disorder (ADHD)

NCT03260205
View directory record Official record
Conditions
Attention Deficit Hyperactivity Disorder (ADHD)
Interventions
Placebo, SPD489 (Lisdexamfetamine dimesylate), SPD489
Drug
Lead sponsor
Shire
Industry
Eligibility
4 Years to 5 Years
Enrollment
199 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
48
States / cities
Dothan, Alabama • Little Rock, Arkansas • Colton, California + 39 more
Source: ClinicalTrials.gov public record
Updated Jun 7, 2021 · Synced Jul 23, 2026, 4:59 PM EDT
Completed Phase 3 Interventional Results available

Treatment of Preschool Children With Upper Respiratory Tract Illnesses Using Azythromycin and Lower Respiratory Tract Symptoms Using Oral Corticosteroids.

NCT01272635
View directory record Official record
Conditions
Asthma, Wheezing
Interventions
Azithromycin, Prednisolone, Placebo Azithromycin, Placebo Prednisolone
Drug · Other
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
12 Months to 71 Months
Enrollment
607 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
16
States / cities
Tucson, Arizona • Oakland, California • San Francisco, California + 11 more
Source: ClinicalTrials.gov public record
Updated Dec 27, 2016 · Synced Jul 23, 2026, 4:59 PM EDT
Completed Phase 4 Interventional

Risperidone Versus Olanzapine for Mania in Preschool Children 4 to 6 Years of Age With Bipolar Disorder

NCT00181935
View directory record Official record
Conditions
Bipolar Disorder, Mania
Interventions
risperidone (Risperdal), olanzapine (Zyprexa)
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
4 Years to 6 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2004
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 5, 2013 · Synced Jul 23, 2026, 4:59 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Retrieval-based Word Learning in Developmental Language Disorder: Adaptive Retrieval Schedule

NCT06995014
View directory record Official record
Conditions
Developmental Language Disorder, Specific Language Impairment, Language Development
Interventions
Retrieval-based word learning: Standard retrieval practice schedule, Retrieval-based word learning: Adaptive retrieval practice schedule
Behavioral
Lead sponsor
Purdue University
Other
Eligibility
48 Months to 71 Months
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated Jun 2, 2025 · Synced Jul 23, 2026, 4:59 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Family Nurture Intervention, A Group Model in Connecticut

NCT02970565
View directory record Official record
Conditions
Behavior Problem, Development Delay, Emotional Disturbance, Family Conflict
Interventions
Family Nurture Intervention, Nutrition and Play Intervention
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
24 Months to 54 Months
Enrollment
106 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
Cos Cob, Connecticut
Source: ClinicalTrials.gov public record
Updated Feb 14, 2023 · Synced Jul 23, 2026, 4:59 PM 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 – 2026
U.S. locations
47
States / cities
Saraland, Alabama • Little Rock, Arkansas • Anaheim, California + 41 more
Source: ClinicalTrials.gov public record
Updated Feb 17, 2026 · Synced Jul 23, 2026, 4:59 PM 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 Jul 23, 2026, 4:59 PM EDT
Completed No phase listed Observational

Working Memory and School Readiness in Preschool-Aged Children With Sickle Cell Disease

NCT02227472
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
Evaluation of cognitive and pre-academic skills, Parent questionnaires
Other
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
48 Months to 68 Months
Enrollment
84 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Sep 11, 2018 · Synced Jul 23, 2026, 4:59 PM 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 Jul 23, 2026, 4:59 PM 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 Jul 23, 2026, 4:59 PM 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 Jul 23, 2026, 4:59 PM 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 Jul 23, 2026, 4:59 PM 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 Jul 23, 2026, 4:59 PM 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 Jul 23, 2026, 4:59 PM 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 Jun 24, 2026 · Synced Jul 23, 2026, 4:59 PM 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 Jul 23, 2026, 4:59 PM EDT