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Showing 25–41 of 17 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Early Adolescent Behavior Clear all
Completed Not applicable Interventional

Pet Ownership and Glucose Control in Early Adolescents With Type 1 Diabetes

NCT03761251
View directory record Official record
Conditions
Diabetes Mellitus, Type 1, Adolescent Behavior
Interventions
Pet Fish
Behavioral
Lead sponsor
University of Texas Southwestern Medical Center
Other
Eligibility
10 Years to 13 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Oct 1, 2019 · Synced Sep 12, 2026, 3:51 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Study of Children at Risk for Disruptive Behavior Disorders

NCT00001233
View directory record Official record
Conditions
Attention Deficit and Disruptive Behavior Disorders, Child Behavior Disorders, Passive-Aggressive Personality Disorder
Interventions
Not listed
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
Not listed
Enrollment
900 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1988 – 2000
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Sep 12, 2026, 3:51 AM EDT
Completed Not applicable Interventional

Early vs. Late Time-Restricted Eating in Adolescents With Obesity (EL TREA)

NCT05740254
View directory record Official record
Conditions
Pediatric Obesity, Time Restricted Feeding, Time Restricted Eating
Interventions
Early Time Restricted Eating, Late Time Restricted Eating
Behavioral
Lead sponsor
Children's Hospital Los Angeles
Other
Eligibility
12 Years to 21 Years
Enrollment
94 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Aug 30, 2026 · Synced Sep 12, 2026, 3:51 AM EDT
Completed Not applicable Interventional

Early Intervention for Youth at Risk for Bipolar Disorder

NCT01483391
View directory record Official record
Conditions
Bipolar Disorder, Major Depressive Disorder
Interventions
Enhanced Care, Family-Focused Treatment
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
9 Years to 17 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2020
U.S. locations
3
States / cities
Los Angeles, California • Stanford, California • Boulder, Colorado
Source: ClinicalTrials.gov public record
Updated Oct 3, 2021 · Synced Sep 12, 2026, 3:51 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Refining and Implementing Technology-Enhanced Family Navigation to Promote Early Access and Engagement With Mental Health Services for Youth With Autism

NCT05344378
View directory record Official record
Conditions
Autism Spectrum Disorder, Implementation Science, Mental Health, Behavioral Health
Interventions
ATTAIN NAV Technology-Enhanced Family Navigation Model
Behavioral
Lead sponsor
University of California, San Diego
Other
Eligibility
4 Years to 16 Years
Enrollment
151 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Jul 7, 2026 · Synced Sep 12, 2026, 3:51 AM EDT
Completed Not applicable Interventional

Health Promotion in Early Adolescence: Sleep, Activity, and Emotion Regulation

NCT01289197
View directory record Official record
Conditions
Sleep Disorders, Physical Activity, Depression, Anxiety
Interventions
Family Check Up
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
10 Years to 13 Years
Enrollment
324 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 10, 2016 · Synced Sep 12, 2026, 3:51 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Positive Affect Treatment for Adolescents With Early Life Adversity

NCT06273137
View directory record Official record
Conditions
Depression
Interventions
Positive affect treatment, Supportive psychotherapy (SUP)
Behavioral
Lead sponsor
University of California, Irvine
Other
Eligibility
12 Years to 16 Years
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2030
U.S. locations
1
States / cities
Irvine, California
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Sep 12, 2026, 3:51 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Tweens to Teens Project at Penn State

NCT01184651
View directory record Official record
Conditions
Congenital Adrenal Hyperplasia
Interventions
Questionnaires/Interviews
Behavioral
Lead sponsor
Penn State University
Other
Eligibility
10 Years to 13 Years · Female only
Enrollment
188 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2013
U.S. locations
1
States / cities
University Park, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 7, 2018 · Synced Sep 12, 2026, 3:51 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Follow-up of Families in Early Preventive Intervention

NCT00438516
View directory record Official record
Conditions
Child Rearing, Adolescent Development, Reproductive Behavior, Risk Reduction Behavior
Interventions
nurse home visitation
Behavioral
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
Female only
Enrollment
627 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2000 – 2003
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Jan 14, 2008 · Synced Sep 12, 2026, 3:51 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Gender Differences of Neuroanatomical and Neurophysiological Correlates of Risk-proneness in Early Adolescents

NCT03534375
View directory record Official record
Conditions
Gender, Early Adolescent Behavior
Interventions
The study is an observational cross sectional study
Other
Lead sponsor
Texas Tech University
Other
Eligibility
10 Years to 12 Years
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Lubbock, Texas
Source: ClinicalTrials.gov public record
Updated Oct 24, 2021 · Synced Sep 12, 2026, 3:51 AM EDT
Completed Not applicable Interventional

Early Prototyping and Usability Testing (ACPS)

NCT05719064
View directory record Official record
Conditions
Medication Adherence
Interventions
Adaptive Cell Phone Support
Behavioral
Lead sponsor
Children's Hospital Los Angeles
Other
Eligibility
15 Years to 20 Years
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 9, 2025 · Synced Sep 12, 2026, 3:51 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

An Emotion Regulation Intervention for Early Adolescent Risk Prevention

NCT03430570
View directory record Official record
Conditions
Risk Behavior, Risk Reduction, Emotion Regulation
Interventions
Tablet TRAC Emotion Regulation Intervention
Behavioral
Lead sponsor
Rhode Island Hospital
Other
Eligibility
12 Years to 14 Years
Enrollment
85 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Dec 5, 2019 · Synced Sep 12, 2026, 3:51 AM EDT
Completed Not applicable Interventional

Intervening Early: Key Adolescent Outcomes

NCT04168684
View directory record Official record
Conditions
Depressive Symptoms, Conduct Disorder, Anxiety Disorders
Interventions
Attachment and Biobehavioral Catch-up (ABC), Developmental Education for Families (DEF)
Behavioral
Lead sponsor
University of Delaware
Other
Eligibility
13 Years to 17 Years
Enrollment
128 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2026
U.S. locations
1
States / cities
Newark, Delaware
Source: ClinicalTrials.gov public record
Updated May 4, 2026 · Synced Sep 12, 2026, 3:51 AM EDT
Not listed Phase 1 Interventional Accepts healthy volunteers

Delaying Sexual Activity in African American Adolescent Girls

NCT00058760
View directory record Official record
Conditions
Adolescent Behavior, Sex Behavior
Interventions
NIA intervention (after school health promotion didactic program)
Behavioral
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
11 Years to 14 Years · Female only
Enrollment
240 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001 – 2006
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 23, 2005 · Synced Sep 12, 2026, 3:51 AM EDT
Completed Not applicable Interventional

Assisted Identification and Navigation of Early Mental Health Symptoms in Children

NCT05064293
View directory record Official record
Conditions
Adolescent Behavior, Mental Health Issue
Interventions
Navigation Arm, Control Arm
Behavioral
Lead sponsor
Kaiser Permanente
Other
Eligibility
4 Years to 12 Years
Enrollment
358 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2025
U.S. locations
2
States / cities
Oakland, California • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Mar 26, 2026 · Synced Sep 12, 2026, 3:51 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Early Study of N-Acetylcysteine to Treat Deliberate Self-Harm in Adolescents

NCT01111734
View directory record Official record
Conditions
Deliberate Self Harm
Interventions
N-Acetylcysteine, fMRI
Dietary Supplement · Drug
Lead sponsor
University of Minnesota
Other
Eligibility
13 Years to 21 Years
Enrollment
67 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2015
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 30, 2019 · Synced Sep 12, 2026, 3:51 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Peer Mentors for Adolescents in HIV Affected Families

NCT00056953
View directory record Official record
Conditions
Adolescent Behavior, Health Behavior, HIV Seronegativity
Interventions
Peer mentoring program
Behavioral
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
9 Years to 15 Years
Enrollment
160 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1999 – 2004
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 28, 2005 · Synced Sep 12, 2026, 3:51 AM EDT