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Showing 1–24 of 160 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Developmental Delay Clear all
Completed Not applicable Interventional

H3: Healthy Minds, Healthy Children, Healthy Chicago Project Evaluation

NCT02699814
View directory record Official record
Conditions
Developmental Delay, Mental Health Disorder
Interventions
H3 Services
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
Up to 16 Years
Enrollment
277 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
2
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 29, 2019 · Synced Sep 5, 2026, 9:20 AM EDT
Active, not recruiting Not applicable Interventional

Developmental Intervention for Hospitalized Newborns With Congenital Heart Disease

NCT05885113
View directory record Official record
Conditions
Cardiology, Infant Development, Development Delay
Interventions
NIDCAP Developmental Care
Behavioral
Lead sponsor
Boston Children's Hospital
Other
Eligibility
Up to 4 Months
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 30, 2026 · Synced Sep 5, 2026, 9:20 AM EDT
Completed No phase listed Observational

DDX3X Syndrome -The Seaver Autism Center for Research and Treatment is Characterizing DDX3X-related Neurodevelopmental Disorders Using Genetic, Medical, and Neuropsychological Measures.

NCT03718910
View directory record Official record
Conditions
DDX3X, Mental Retardation, X-linked 102, Autism Spectrum Disorder
Interventions
Not listed
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
2 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 8, 2026 · Synced Sep 5, 2026, 9:20 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Study of Toddlers With Language Delay

NCT01339767
View directory record Official record
Conditions
Autism, Language Acquisition, Language Development, Toddlers
Interventions
Not listed
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
9 Months to 21 Months
Enrollment
77 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2017
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 11, 2019 · Synced Sep 5, 2026, 9:20 AM EDT
Recruiting No phase listed Observational

ADNP Syndrome: The Seaver Autism Center for Research and Treatment is Characterizing ADNP-related Neurodevelopmental Disorders Using Genetic, Medical, and Neuropsychological Measures.

NCT03718936
View directory record Official record
Conditions
ADNP, Helsmoortel-Van Der Aa Syndrome, Autism Spectrum Disorder
Interventions
Not listed
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
2 Years and older
Enrollment
30 participants
Timeline
2017 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated May 8, 2025 · Synced Sep 5, 2026, 9:20 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

A Language Intervention Study of Preterm Infants

NCT03688386
View directory record Official record
Conditions
Language Development, Language Delay, Mother-Infant Interaction, Maternal Behavior
Interventions
Reading intervention, Infant bonding, LENA recording, LENA linguistic feedback, LENA summary
Behavioral
Lead sponsor
Women and Infants Hospital of Rhode Island
Other
Eligibility
23 Weeks to 31 Weeks
Enrollment
67 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Oct 7, 2020 · Synced Sep 5, 2026, 9:20 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Improving Autism Screening With Brain-Related miRNA

NCT02712853
View directory record Official record
Conditions
Autism Spectrum Disorder, Developmental Delay
Interventions
Saliva collection, Vineland Adaptive Behavior Scale-II Assessment
Other
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
18 Months to 6 Years
Enrollment
304 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 21, 2018 · Synced Sep 5, 2026, 9:20 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Evaluating the Validity of a Genetic Risk Assessment Tool in Identifying Autism Spectrum Disorder

NCT01452061
View directory record Official record
Conditions
Autism Spectrum Disorder, Attention Deficit/Hyperactivity Disorder, Developmental Delay
Interventions
Not listed
Lead sponsor
Thomas W. Frazier, Ph.D
Other
Eligibility
1 Year to 12 Years
Enrollment
456 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2013
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 28, 2014 · Synced Sep 5, 2026, 9:20 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Establishing the Clinical Utility of First StepDx PLUS and NextStepDx PLUS Study

NCT02414438
View directory record Official record
Conditions
Intellectual Disability, Developmental Delay
Interventions
FirstStepDX PLUS and NextStepDX PLUS Webinar, FirstStepDX PLUS and NextStepDX PLUS Test Results
Other
Lead sponsor
Qure Healthcare, LLC
Industry
Eligibility
Up to 99 Years
Enrollment
217 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
San Rafael, California
Source: ClinicalTrials.gov public record
Updated Feb 26, 2026 · Synced Sep 5, 2026, 9:20 AM EDT
Completed No phase listed Observational Results available

On Track: Monitoring Development of Children With Cerebral Palsy or Gross Motor Delay

NCT02391948
View directory record Official record
Conditions
Cerebral Palsy
Interventions
Not listed
Lead sponsor
University of Washington
Other
Eligibility
18 Months to 12 Years
Enrollment
724 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
4
States / cities
Atlanta, Georgia • Oklahoma City, Oklahoma • Philadelphia, Pennsylvania + 1 more
Source: ClinicalTrials.gov public record
Updated Apr 18, 2019 · Synced Sep 5, 2026, 9:20 AM EDT
Recruiting Not applicable Interventional

A Digital Health Parent-Training Intervention for Children With Social Communication Delays

NCT07551752
View directory record Official record
Conditions
Autism Spectrum Disorder, Social Communication Delay
Interventions
Online Parent Training in Early Behavioral Intervention (OPT-In-Early)
Behavioral
Lead sponsor
Florida International University
Other
Eligibility
14 Months and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Apr 26, 2026 · Synced Sep 5, 2026, 9:20 AM EDT
Withdrawn Not applicable Interventional

Testing the Sickle Cell Caregiver Collaboration for Child Development (SCCCD) Intervention

NCT06562439
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
Sickle Cell Collaboration for Child Development
Behavioral
Lead sponsor
Washington University School of Medicine
Other
Eligibility
6 Months to 31 Months
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Aug 24, 2026 · Synced Sep 5, 2026, 9:20 AM EDT
Not listed Phase 1 Interventional Accepts healthy volunteers

Preventing Learning Problems in Young Children: A Public Health and Physician-Based Outreach

NCT00110292
View directory record Official record
Conditions
Developmental Disabilities, Language Development Disorders
Interventions
Age-specific parenting newsletters and developmental toys, Parent-completed Ages & Stages Questionnaires, Clinic-based distribution of children's books
Behavioral
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
4 Months to 7 Months
Enrollment
600 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2006
U.S. locations
2
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Jun 23, 2005 · Synced Sep 5, 2026, 9:20 AM EDT
Completed Phase 1 Interventional

Mobility Training to Improve Motor Behavior in Toddlers With or at Risk for Cerebral Palsy: A Pilot Study

NCT01253083
View directory record Official record
Conditions
Developmental Delay, Cerebral Palsy
Interventions
mobility training with dynamic body weight support
Behavioral
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
12 Months to 36 Months
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 16, 2019 · Synced Sep 5, 2026, 9:20 AM EDT
Completed No phase listed Observational

Investigation of the Genetic Causes of Kallmann Syndrome and Reproductive Disorders

NCT00494169
View directory record Official record
Conditions
Hypogonadotropic Hypogonadism, Kallmann Syndrome, Puberty, Delayed, Puberty, Precocious, GnRH Deficiency
Interventions
Not listed
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
Not listed
Enrollment
4,042 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2022
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 29, 2022 · Synced Sep 5, 2026, 9:20 AM EDT
Completed No phase listed Observational

Tube Feeding Tolerance After Switch to Peptide Based Formula in Children With Developmental Delay

NCT02912065
View directory record Official record
Conditions
Developmental Disabilities, Feeding Disorder
Interventions
Not listed
Lead sponsor
Société des Produits Nestlé (SPN)
Industry
Eligibility
13 Months to 17 Years
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015
U.S. locations
1
States / cities
Hollywood, Florida
Source: ClinicalTrials.gov public record
Updated Oct 4, 2016 · Synced Sep 5, 2026, 9:20 AM EDT
Active, not recruiting Not applicable Interventional

Mental And Speech Developmental Delay Autism Spectrum-Type Behavioral Disorder

NCT07670000
View directory record Official record
Conditions
Autism Spectrum Disorder (ASD), Central Auditory Processing Disorder, Nervous System Disorder, Neurological Disorder
Interventions
Audio fairy tales
Behavioral
Lead sponsor
Natalia Poluektova
Other
Eligibility
3 Years to 70 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 1, 2026 · Synced Sep 5, 2026, 9:20 AM EDT
Completed Not applicable Interventional

Animal-Assisted Therapy in Pediatric Autism Spectrum Disorders

NCT06687850
View directory record Official record
Conditions
Pediatric Autism, Developmental Delay (Disorder), Behavioral Concerns
Interventions
animal assisted therapy
Behavioral
Lead sponsor
University of Arkansas, Fayetteville
Other
Eligibility
3 Years to 21 Years
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Fayetteville, Arkansas
Source: ClinicalTrials.gov public record
Updated Nov 13, 2024 · Synced Sep 5, 2026, 9:20 AM EDT
Completed Phase 1 Interventional

Treatment Strategies for Children With Smith-Magenis Syndrome

NCT00506259
View directory record Official record
Conditions
Developmental Delay Disorders, Chromosome Deletion, Mental Retardation, Sleep Disorders, Circadian Rhythm, Self Injurious Behavior
Interventions
dTR Melatonin (NIH CC PDS), Phototherapy (Bright Light), Melatonin CR
Drug · Device
Lead sponsor
National Human Genome Research Institute (NHGRI)
NIH
Eligibility
3 Years to 45 Years
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2018
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 11, 2019 · Synced Sep 5, 2026, 9:20 AM EDT
Recruiting No phase listed Observational

Inherited Reproductive Disorders

NCT01500447
View directory record Official record
Conditions
Genetic Disorder, Infertility, Hypogonadism, Amenorrhea
Interventions
Not listed
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
6 Weeks to 120 Years
Enrollment
850 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2012
U.S. locations
2
States / cities
Bethesda, Maryland • Research Triangle Park, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 27, 2026 · Synced Sep 5, 2026, 9:20 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Developmental Trajectories of Reinforcer Pathology and Childhood Obesity

NCT07229508
View directory record Official record
Conditions
Pediatric Obesity
Interventions
Not listed
Lead sponsor
State University of New York at Buffalo
Other
Eligibility
8 Years to 11 Years
Enrollment
250 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2030
U.S. locations
1
States / cities
Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Nov 16, 2025 · Synced Sep 5, 2026, 9:20 AM EDT
Terminated Not applicable Interventional

Maternal Voice and Quantitative EEG (qEEG)

NCT05391633
View directory record Official record
Conditions
Prematurity, Development Delay, Premature Birth
Interventions
Recorded Maternal Voice, Placebo Recording
Behavioral
Lead sponsor
University of New Mexico
Other
Eligibility
28 Weeks to 33 Weeks
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated Sep 14, 2025 · Synced Sep 5, 2026, 9:20 AM EDT
Recruiting Not applicable Interventional

IVM With Low Cost Priming, Enhanced Oocyte Recovery, and Delayed Transfer

NCT04149496
View directory record Official record
Conditions
Polycystic Ovary Syndrome
Interventions
in vitro maturation of oocytes
Combination Product
Lead sponsor
Bruce Rose, MD
Other
Eligibility
18 Years to 38 Years · Female only
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Nov 3, 2019 · Synced Sep 5, 2026, 9:20 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Stamford Group Family Nurture Intervention

NCT03442439
View directory record Official record
Conditions
Behavior Problem, Developmental Delay, Emotional Disturbances, Family Conflict
Interventions
Nutrition and Play Intervention, Family Nurture Intervention
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
24 Months to 54 Months
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Stamford, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 7, 2019 · Synced Sep 5, 2026, 9:20 AM EDT