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ClinicalTrials.gov public records Last synced Oct 20, 2026, 5:39 PM EDT

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Showing 25–48 of 212 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Trisomy 21 Clear all
Completed Not applicable Interventional Results available

Obstructive Sleep Apnea and Neurocognitive and Cardiovascular Function in Children With Down Syndrome

NCT01808508
View directory record Official record
Conditions
Down Syndrome, Obstructive Sleep Apnea Syndrome
Interventions
Continuous positive airway pressure, Sham or placebo continuous positive airway pressure
Device
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
8 Years to 20 Years
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 8, 2016 · Synced Oct 20, 2026, 5:39 PM EDT
Completed Phase 3 Interventional Results available

Combination Chemotherapy in Treating Young Patients With Down Syndrome and Acute Myeloid Leukemia or Myelodysplastic Syndromes

NCT00369317
View directory record Official record
Conditions
Childhood Acute Basophilic Leukemia, Childhood Acute Eosinophilic Leukemia, Childhood Acute Erythroleukemia (M6), Childhood Acute Megakaryocytic Leukemia (M7), Childhood Acute Minimally Differentiated Myeloid Leukemia (M0), Childhood Acute Monoblastic Leukemia (M5a), Childhood Acute Monocytic Leukemia (M5b), Childhood Acute Myeloblastic Leukemia With Maturation (M2), Childhood Acute Myeloblastic Leukemia Without Maturation (M1), Childhood Acute Myelomonocytic Leukemia (M4), Childhood Myelodysplastic Syndromes, de Novo Myelodysplastic Syndromes, Secondary Acute Myeloid Leukemia, Secondary Myelodysplastic Syndromes, Untreated Childhood Acute Myeloid Leukemia and Other Myeloid Malignancies
Interventions
asparaginase, daunorubicin hydrochloride, cytarabine, thioguanine, etoposide, laboratory biomarker analysis
Drug · Other
Lead sponsor
Children's Oncology Group
Network
Eligibility
Up to 4 Years
Enrollment
205 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2021
U.S. locations
88
States / cities
Phoenix, Arizona • Downey, California • Long Beach, California + 73 more
Source: ClinicalTrials.gov public record
Updated Jan 28, 2022 · Synced Oct 20, 2026, 5:39 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Down Syndrome Memantine Follow-up Study

NCT02304302
View directory record Official record
Conditions
Down Syndrome, Intellectual Disability
Interventions
Memantine, Placebo
Drug
Lead sponsor
University Hospitals Cleveland Medical Center
Other
Eligibility
15 Years to 32 Years
Enrollment
160 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2020
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Jun 27, 2023 · Synced Oct 20, 2026, 5:39 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Natural History of Dysregulation and Aging of the Immune System in People With Trisomy 21 With and Without Thymectomy

NCT07416201
View directory record Official record
Conditions
Down Syndrome
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
1 Year to 120 Years
Enrollment
700 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2040
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 19, 2026 · Synced Oct 20, 2026, 5:39 PM EDT
Completed Not applicable Interventional

The Impact of an 8-week Supported Exercise Program on Fitness and Symptoms in Adolescents With Down Syndrome

NCT03192540
View directory record Official record
Conditions
Down Syndrome
Interventions
Exercise
Other
Lead sponsor
Boston Children's Hospital
Other
Eligibility
10 Years to 17 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 26, 2022 · Synced Oct 20, 2026, 5:39 PM EDT
Completed No phase listed Observational

Comparison of Aneuploidy Risk Evaluations

NCT01663350
View directory record Official record
Conditions
Pregnancy, Down Syndrome, Edwards Syndrome, Patau Syndrome, Turners Syndrome
Interventions
Not listed
Lead sponsor
Verinata Health, Inc.
Industry
Eligibility
18 Years and older · Female only
Enrollment
3,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2012
U.S. locations
26
States / cities
San Diego, California • Atlanta, Georgia • Chicago, Illinois + 22 more
Source: ClinicalTrials.gov public record
Updated Jul 16, 2013 · Synced Oct 20, 2026, 5:39 PM EDT
Terminated Phase 3 Interventional Results available

Evaluating The Efficacy And Safety Of Donepezil Hydrochloride (Aricept) In The Treatment Of The Cognitive Dysfunction Exhibited By Children With Down Syndrome, Aged 6 To 10

NCT00754013
View directory record Official record
Conditions
Down Syndrome, Cognitive Dysfunction
Interventions
Aricept (Donepezil hydrochloride), Placebo
Drug
Lead sponsor
Eisai Inc.
Industry
Eligibility
6 Years to 10 Years
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008
U.S. locations
2
States / cities
San Antonio, Texas • Herndon, Virginia
Source: ClinicalTrials.gov public record
Updated Jan 28, 2020 · Synced Oct 20, 2026, 5:39 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

GameSquad for Adults With Down Syndrome

NCT05473247
View directory record Official record
Conditions
Down Syndrome, Physical Inactivity
Interventions
Ring-Fit Adventure Group
Behavioral
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years to 30 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Nov 25, 2024 · Synced Oct 20, 2026, 5:39 PM EDT
Recruiting Not applicable Interventional

How Simplified Language Affects Comprehension and Learning in Young Children With Down Syndrome

NCT06951516
View directory record Official record
Conditions
Down Syndrome
Interventions
Linguistic simplification
Behavioral
Lead sponsor
Michigan State University
Other
Eligibility
2 Years to 7 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
East Lansing, Michigan
Source: ClinicalTrials.gov public record
Updated Jun 12, 2026 · Synced Oct 20, 2026, 5:39 PM EDT
Recruiting Not applicable Interventional

Brain Outcomes With Lifestyle Change in Down Syndrome

NCT05985486
View directory record Official record
Conditions
Down Syndrome, Alzheimer Disease, Obesity
Interventions
Diet, Health Education
Behavioral
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years to 64 Years
Enrollment
81 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Mar 11, 2026 · Synced Oct 20, 2026, 5:39 PM EDT
Completed No phase listed Observational

Hypotension in Children With Down Syndrome With Anesthesia Induction

NCT04603469
View directory record Official record
Conditions
Hypotension on Induction
Interventions
Non invasive blood pressure
Other
Lead sponsor
Baylor College of Medicine
Other
Eligibility
1 Week to 18 Years
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 27, 2022 · Synced Oct 20, 2026, 5:39 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Blood Flow in Individuals With Down Syndrome

NCT03590665
View directory record Official record
Conditions
Down Syndrome
Interventions
Hand grip exercise and lower body negative pressure
Other
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
18 Years to 45 Years
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 15, 2019 · Synced Oct 20, 2026, 5:39 PM EDT
Completed Phase 2 Interventional Results available

Tofacitinib for Immune Skin Conditions in Down Syndrome

NCT04246372
View directory record Official record
Conditions
Down Syndrome, Alopecia Areata, Atopic Dermatitis / Eczema, Hidradenitis Suppurativa, Vitiligo, Psoriasis
Interventions
Tofacitinib
Drug
Lead sponsor
University of Colorado, Denver
Other
Eligibility
12 Years to 50 Years
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Dec 11, 2025 · Synced Oct 20, 2026, 5:39 PM EDT
Recruiting Not applicable Interventional

Drumming Lessons' Influence on Children With Down Syndrome

NCT07156318
View directory record Official record
Conditions
Down Syndrome
Interventions
2 months of drumming lessons given by a professional drummer with extensive experience working with children with Down syndrome, Lessons after measurement
Behavioral
Lead sponsor
Vanderbilt University
Other
Eligibility
7 Years to 15 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated May 19, 2026 · Synced Oct 20, 2026, 5:39 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Feasibility and Dose Tolerability of HD-tDCS in Healthy Adults and Children With Down Syndrome

NCT02481765
View directory record Official record
Conditions
Down Syndrome
Interventions
High definition transcranial direct current stimulation
Device
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years to 45 Years
Enrollment
5 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Feb 11, 2020 · Synced Oct 20, 2026, 5:39 PM EDT
Recruiting No phase listed Observational

DS-Connect®: The Down Syndrome Registry

NCT01950624
View directory record Official record
Conditions
Down Syndrome
Interventions
Not listed
Lead sponsor
University of Colorado, Denver
Other
Eligibility
Not listed
Enrollment
100,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2035
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Jan 31, 2025 · Synced Oct 20, 2026, 5:39 PM EDT
Completed Not applicable Interventional

A Bicycle Training Intervention

NCT02046889
View directory record Official record
Conditions
Autism Spectrum Disorder, Down Syndrome
Interventions
Bicycle Training Intervention
Behavioral
Lead sponsor
University of Michigan
Other
Eligibility
9 Years to 18 Years
Enrollment
155 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2012
U.S. locations
3
States / cities
Southbend, Indiana • Ann Arbor, Michigan • Grand Rapids, Michigan
Source: ClinicalTrials.gov public record
Updated Jan 28, 2014 · Synced Oct 20, 2026, 5:39 PM EDT
Completed Phase 2 Interventional

A Study of RG1662 in Adults and Adolescents With Down Syndrome (CLEMATIS)

NCT02024789
View directory record Official record
Conditions
Down Syndrome
Interventions
Placebo, RG1662
Drug
Lead sponsor
Hoffmann-La Roche
Industry
Eligibility
12 Years to 30 Years
Enrollment
173 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
9
States / cities
La Jolla, California • Sacramento, California • Decatur, Georgia + 6 more
Source: ClinicalTrials.gov public record
Updated Oct 25, 2017 · Synced Oct 20, 2026, 5:39 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Depressed AIRE Gene Expression Causes Immune Cell Dysfunction & Autoimmunity in Down Syndrome

NCT02421276
View directory record Official record
Conditions
Down Syndrome, Polyendocrinopathies, Autoimmune, Respiratory Tract Infections, Autoimmunity
Interventions
Phlebotomy
Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
Up to 22 Years
Enrollment
45 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Apr 19, 2022 · Synced Oct 20, 2026, 5:39 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 20, 2026, 5:39 PM EDT
Recruiting Not applicable Interventional

Sleep Intervention and Quality of Life in Down Syndrome

NCT06783725
View directory record Official record
Conditions
Down Syndrome, Down Syndrome (Trisomy 21)
Interventions
Mindfulness-Based Therapy for Insomnia, Wait-list control
Behavioral
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
12 Months to 30 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Mar 20, 2026 · Synced Oct 20, 2026, 5:39 PM EDT
Not listed No phase listed Observational

Non-Invasive Screening for Fetal Aneuploidy

NCT02317965
View directory record Official record
Conditions
Down Syndrome, Edwards Syndrome
Interventions
Maternal Blood Draw
Other
Lead sponsor
Progenity, Inc.
Industry
Eligibility
18 Years to 54 Years · Female only
Enrollment
340 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
10
States / cities
Campbell, California • Long Beach, California • Denver, Colorado + 6 more
Source: ClinicalTrials.gov public record
Updated Aug 28, 2018 · Synced Oct 20, 2026, 5:39 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Rivastigmine Study in Adolescents With Down Syndrome

NCT01084135
View directory record Official record
Conditions
Down Syndrome
Interventions
Rivastigmine, Liquid Placebo
Drug · Other
Lead sponsor
Duke University
Other
Eligibility
10 Years to 17 Years
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
2
States / cities
Baltimore, Maryland • Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 6, 2015 · Synced Oct 20, 2026, 5:39 PM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Neuromuscular Characteristics of Individuals With Down Syndrome (DS)

NCT00643955
View directory record Official record
Conditions
Down Syndrome
Interventions
muscle strength
Other
Lead sponsor
State University of New York - Upstate Medical University
Other
Eligibility
18 Years to 45 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2008
U.S. locations
1
States / cities
Syracuse, New York
Source: ClinicalTrials.gov public record
Updated Dec 21, 2023 · Synced Oct 20, 2026, 5:39 PM EDT