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ClinicalTrials.gov public records Last synced Oct 21, 2026, 1:35 PM EDT

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Showing 193–216 of 363 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Disabilities Multiple Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Healthy Lifestyles for People With Intellectual Disabilities

NCT00597948
View directory record Official record
Conditions
Mental Retardation, Developmental Disabilities, Intellectual Disabilities
Interventions
Healthy Lifestyles Curriculum
Behavioral
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
18 Years to 65 Years
Enrollment
131 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2010
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Feb 27, 2012 · Synced Oct 21, 2026, 1:35 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Brain-Derived Neurotrophic Factor in Obesity and Brain Function

NCT01517048
View directory record Official record
Conditions
Obesity, Genetic Disorder, Mental Retardation, Developmental Delay
Interventions
Not listed
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
Up to 99 Years
Enrollment
93 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 17, 2019 · Synced Oct 21, 2026, 1:35 PM EDT
Terminated Not applicable Interventional Results available

Octreotide Therapy in Children and Young Adults With Prader-Willi Syndrome (PWS)

NCT00399893
View directory record Official record
Conditions
Prader-Willi Syndrome
Interventions
Octreotide, Placebo
Drug
Lead sponsor
Duke University
Other
Eligibility
5 Years to 21 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2010
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 24, 2014 · Synced Oct 21, 2026, 1:35 PM EDT
Completed No phase listed Observational

Clinical and Genetic Studies on Holoprosencephaly

NCT00088426
View directory record Official record
Conditions
Holoprosencephaly, HPE, Developmental Delay Disorders, Brain Disorders
Interventions
Not listed
Lead sponsor
National Human Genome Research Institute (NHGRI)
NIH
Eligibility
1 Month and older
Enrollment
256 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2020
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 20, 2020 · Synced Oct 21, 2026, 1:35 PM EDT
Terminated Phase 3 Interventional

The Hunger Elimination or Reduction Objective (HERO ) Open -Label Extension (OLE) Trial

NCT07197034
View directory record Official record
Conditions
Hyperphagia, Prader-Willi Syndrome, Hyperphagia in Prader-Willi Syndrome
Interventions
ARD-101
Drug
Lead sponsor
Aardvark Therapeutics, Inc.
Industry
Eligibility
13 Years and older
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
16
States / cities
Birmingham, Alabama • Orange, California • Palo Alto, California + 13 more
Source: ClinicalTrials.gov public record
Updated Jun 30, 2026 · Synced Oct 21, 2026, 1:35 PM EDT
Completed Phase 1Phase 2 Interventional

Behavioral Treatment of Obsessive-Compulsive Symptoms in Youth With Prader-Willi Syndrome: A Pilot Project

NCT00742664
View directory record Official record
Conditions
Prader Willi Syndrome, Obsessive-compulsive Disorder
Interventions
Cognitive-behavioral therapy, Wait-list control
Behavioral
Lead sponsor
University of South Florida
Other
Eligibility
6 Years to 17 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
St. Petersburg, Florida
Source: ClinicalTrials.gov public record
Updated Aug 8, 2011 · Synced Oct 21, 2026, 1:35 PM EDT
Terminated Not applicable Interventional

Home-based SSP on Individuals With PWS

NCT03871751
View directory record Official record
Conditions
Prader-Willi Syndrome
Interventions
Safe and Sound Protocol
Behavioral
Lead sponsor
Indiana University
Other
Eligibility
3 Years to 17 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Mar 7, 2022 · Synced Oct 21, 2026, 1:35 PM EDT
Completed Phase 3 Interventional Results available

Efficacy and Safety of Circadin® in the Treatment of Sleep Disturbances in Children With Neurodevelopment Disabilities

NCT01906866
View directory record Official record
Conditions
Sleep Disorders
Interventions
Circadin 2/5/10 mg, Placebo
Drug
Lead sponsor
Neurim Pharmaceuticals Ltd.
Industry
Eligibility
2 Years to 17 Years
Enrollment
125 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2018
U.S. locations
18
States / cities
Phoenix, Arizona • Miami Lakes, Florida • Orange City, Florida + 14 more
Source: ClinicalTrials.gov public record
Updated Apr 23, 2024 · Synced Oct 21, 2026, 1:35 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Intranasal Oxytocin for Infants With Prader-Willi Syndrome

NCT03245762
View directory record Official record
Conditions
Prader-Willi Syndrome
Interventions
Oxytocin, Placebo
Drug
Lead sponsor
University of Florida
Other
Eligibility
1 Week to 6 Months
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Mar 26, 2020 · Synced Oct 21, 2026, 1:35 PM EDT
Recruiting Phase 4 Interventional

Endotype DIrected Treatment for OSA in Down Syndrome

NCT07280468
View directory record Official record
Conditions
Obstructive Sleep Apnea (OSA), Down Syndrome
Interventions
ato-oxy, Oxygen
Drug
Lead sponsor
University of Arizona
Other
Eligibility
6 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
5
States / cities
Tucson, Arizona • San Diego, California • Miami, Florida + 2 more
Source: ClinicalTrials.gov public record
Updated Sep 3, 2026 · Synced Oct 21, 2026, 1:35 PM EDT
Completed No phase listed Observational

Prenatal Screening for Down Syndrome With DNAFirst

NCT01966991
View directory record Official record
Conditions
Trisomy 21, Trisomy 18, Trisomy 13, Monosomy X
Interventions
Not listed
Lead sponsor
Women and Infants Hospital of Rhode Island
Other
Eligibility
18 Years and older · Female only
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Feb 22, 2018 · Synced Oct 21, 2026, 1:35 PM EDT
Completed Phase 4 Interventional Results available

Efficacy and Safety of Memantine Hydrochloride in Enhancing the Cognitive Abilities of Young Adults With Down Syndrome

NCT01112683
View directory record Official record
Conditions
Down Syndrome
Interventions
Memantine, Placebo
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 32 Years
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Feb 1, 2013 · Synced Oct 21, 2026, 1:35 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Diagnosis of Central Adrenal Insufficiency in Patients With Prader-Willi Syndrome

NCT02368379
View directory record Official record
Conditions
Prader Willi Syndrome, Adrenal Insufficiency
Interventions
Low dose (1 mcg) ACTH stimulation test, Overnight metyrapone test
Other
Lead sponsor
Nationwide Children's Hospital
Other
Eligibility
2 Years and older
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 29, 2018 · Synced Oct 21, 2026, 1:35 PM EDT
Recruiting Not applicable Interventional

Measuring Aided Language Development

NCT06512168
View directory record Official record
Conditions
Down Syndrome, Cerebral Palsy, Apraxia of Speech, Speech Sound Disorder, Speech Disorders in Children, Speech and Language Disorder
Interventions
AAC Generative Language Intervention
Behavioral
Lead sponsor
University of Central Florida
Other
Eligibility
42 Months to 60 Months
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
Orlando, Florida
Source: ClinicalTrials.gov public record
Updated May 16, 2025 · Synced Oct 21, 2026, 1:35 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Relationship Between Down Syndrome (DS) and Alzheimer's Disease (AD)

NCT02759887
View directory record Official record
Conditions
Down Syndrome, Alzheimer's Dementia
Interventions
biospecimen collection, cognitive assessments, caregiver questionnaire, Florbetapir F18 imaging, MRI, Fludeoxyglucose F18 (FDG), Tau Pet, Actigraphy
Procedure · Other
Lead sponsor
St. Joseph's Hospital and Medical Center, Phoenix
Other
Eligibility
21 Years and older
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Oct 29, 2019 · Synced Oct 21, 2026, 1:35 PM EDT
Completed Phase 1 Interventional

A Pharmacokinetic and Safety Study of CSTI-500 in Subjects With Prader-Willi Syndrome

NCT05504395
View directory record Official record
Conditions
Prader-Willi Syndrome
Interventions
CSTI-500
Drug
Lead sponsor
ConSynance Therapeutics
Industry
Eligibility
13 Years to 50 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2023
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Aug 9, 2023 · Synced Oct 21, 2026, 1:35 PM EDT
Enrolling by invitation Not applicable Interventional Accepts healthy volunteers

Parent and Infant Inter(X)Action Intervention (PIXI)

NCT03836300
View directory record Official record
Conditions
Fragile X Syndrome, Angelman Syndrome, Prader-Willi Syndrome, Dup15Q Syndrome, Duchenne Muscular Dystrophy, Phelan-McDermid Syndrome, Rett Syndrome, Smith Magenis Syndrome, Williams Syndrome, Turner Syndrome, Klinefelter Syndrome, Chromosome 22q11.2 Deletion Syndrome, Tuberous Sclerosis, Down Syndrome
Interventions
Parent-Infant Inter(X)action Intervention (PIXI)
Behavioral
Lead sponsor
RTI International
Other
Eligibility
Up to 99 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2026
U.S. locations
1
States / cities
Research Triangle Park, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 13, 2026 · Synced Oct 21, 2026, 1:35 PM EDT
Not listed No phase listed Observational

Pulmonary Health in Children With Down Syndrome

NCT04398862
View directory record Official record
Conditions
Down Syndrome, Dysphagia, Oropharyngeal
Interventions
Not listed
Lead sponsor
University of Colorado, Denver
Other
Eligibility
3 Years to 18 Years
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jan 26, 2024 · Synced Oct 21, 2026, 1:35 PM EDT
Completed No phase listed Observational

Down Syndrome Autonomic Nervous System Induction Bradycardia

NCT05120531
View directory record Official record
Conditions
Down Syndrome, Bradycardia
Interventions
Monitoring patients undergoing surgery to look for association between ANS activity and bradycardia
Other
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
1 Month to 8 Years
Enrollment
195 participants
Timeline
2022 – 2023
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 15, 2023 · Synced Oct 21, 2026, 1:35 PM EDT
Completed Not applicable Interventional Results available

Clinical Utility of Pediatric Whole Exome Sequencing

NCT03525431
View directory record Official record
Conditions
Encephalopathy, Birth Defect, Intellectual Disability, Multiple Congenital Anomaly, Metabolic Disease, Epilepsy, Neuro-Degenerative Disease, Cerebral Palsy, Developmental Delay, Developmental Defect
Interventions
Whole Exome Sequencing
Diagnostic Test
Lead sponsor
University of California, San Francisco
Other
Eligibility
Up to 25 Years
Enrollment
529 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2022
U.S. locations
4
States / cities
Fresno, California • Oakland, California • San Francisco, California
Source: ClinicalTrials.gov public record
Updated Jul 18, 2023 · Synced Oct 21, 2026, 1:35 PM EDT
Completed Phase 2 Interventional Results available

A Phase 2 Study to Evaluate the Safety and Efficacy of Pitolisant in Patients With Prader-Willi Syndrome, Followed by an Open Label Extension

NCT04257929
View directory record Official record
Conditions
Prader-Willi Syndrome
Interventions
Pitolisant oral tablets, Placebo oral tablet
Drug
Lead sponsor
Harmony Biosciences Management, Inc.
Industry
Eligibility
6 Years to 65 Years
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
13
States / cities
San Diego, California • San Ramon, California • Santa Monica, California + 10 more
Source: ClinicalTrials.gov public record
Updated May 12, 2026 · Synced Oct 21, 2026, 1:35 PM EDT
Terminated No phase listed Observational

Evaluation of Ocular Lens Proteins in Cataract From Individuals With Down Syndrome

NCT03778528
View directory record Official record
Conditions
Cataract, Down Syndrome
Interventions
cataract surgery
Procedure
Lead sponsor
University of Colorado, Denver
Other
Eligibility
1 Month to 18 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jul 7, 2020 · Synced Oct 21, 2026, 1:35 PM EDT
Completed Not applicable Interventional Results available

Weight Management for Adolescents With IDD

NCT02561754
View directory record Official record
Conditions
Developmental Disabilities, Weight Loss, Body Weight, Down Syndrome, Body Weight Changes, Intellectual Disability
Interventions
Enhanced Stop Light Diet (eSLD), Conventional Diet (CD), Face-to-face (FTF), Technology (TECH), iPad with FaceTime
Dietary Supplement · Behavioral · Other
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
13 Years to 21 Years
Enrollment
110 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2021
U.S. locations
2
States / cities
Kansas City, Kansas • Lawrence, Kansas
Source: ClinicalTrials.gov public record
Updated Feb 10, 2023 · Synced Oct 21, 2026, 1:35 PM EDT
Completed Not applicable Interventional

Self-Monitoring Shopping Intervention

NCT04020302
View directory record Official record
Conditions
Intellectual Disability, Down Syndrome
Interventions
Self-monitoring shopping intervention
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
18 Years to 65 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019
U.S. locations
1
States / cities
Hillsborough, New Jersey
Source: ClinicalTrials.gov public record
Updated Jan 23, 2020 · Synced Oct 21, 2026, 1:35 PM EDT