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

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Showing 193–212 of 212 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Trisomy 21 Clear all
Completed No phase listed Observational Accepts healthy volunteers

SNP-based Microdeletion and Aneuploidy RegisTry (SMART)

NCT02381457
View directory record Official record
Conditions
22q11 Deletion Syndrome, DiGeorge Syndrome, Trisomy 21, Trisomy 18, Trisomy 13, Monosomy X, Sex Chromosome Abnormalities, Cri-du-Chat Syndrome, Angelman Syndrome, Prader-Willi Syndrome, 1p36 Deletion Syndrome
Interventions
Not listed
Lead sponsor
Natera, Inc.
Industry
Eligibility
18 Years to 48 Years · Female only
Enrollment
20,960 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2020
U.S. locations
16
States / cities
San Francisco, California • Camden, New Jersey • Mount Laurel, New Jersey + 10 more
Source: ClinicalTrials.gov public record
Updated Jan 29, 2021 · Synced Oct 21, 2026, 1:35 AM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Prenatal Non-invasive Aneuploidy Test Utilizing SNPs Trial

NCT01545674
View directory record Official record
Conditions
Trisomy 13, Trisomy 18, Trisomy 21, Aneuploidy
Interventions
Blood Draw
Procedure
Lead sponsor
Natera, Inc.
Industry
Eligibility
Female only
Enrollment
937 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2023
U.S. locations
24
States / cities
Birmingham, Alabama • Los Angeles, California • San Francisco, California + 16 more
Source: ClinicalTrials.gov public record
Updated Mar 23, 2023 · Synced Oct 21, 2026, 1:35 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Prenatal Test for Fetal Aneuploidy Detection

NCT01256606
View directory record Official record
Conditions
Aneuploidy, Trisomy 21
Interventions
Not listed
Lead sponsor
Roche Sequencing Solutions
Industry
Eligibility
18 Years to 60 Years · Female only
Enrollment
4,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2011
U.S. locations
6
States / cities
Oakland, California • Sacramento, California • San Diego, California + 3 more
Source: ClinicalTrials.gov public record
Updated Jan 10, 2013 · Synced Oct 21, 2026, 1:35 AM EDT
Completed Phase 1 Interventional Results available

Safety, Tolerability and Immunogenicity of ACI-24 Vaccine in Adults With Down Syndrome

NCT02738450
View directory record Official record
Conditions
Down Syndrome
Interventions
ACI-24 low dose, ACI-24 high dose, Placebo
Biological
Lead sponsor
AC Immune SA
Industry
Eligibility
25 Years to 45 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
4
States / cities
Phoenix, Arizona • La Jolla, California • Baltimore, Maryland + 1 more
Source: ClinicalTrials.gov public record
Updated Oct 15, 2021 · Synced Oct 21, 2026, 1:35 AM EDT
Active, not recruiting Phase 4 Interventional Accepts healthy volunteers

Evaluating Treatment of ADHD in Children With Down Syndrome

NCT04219280
View directory record Official record
Conditions
Down Syndrome, ADHD
Interventions
Quillivant XR, Placebo
Drug
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
6 Years to 17 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2026
U.S. locations
4
States / cities
Sacramento, California • Boston, Massachusetts • Cincinnati, Ohio + 1 more
Source: ClinicalTrials.gov public record
Updated Aug 10, 2026 · Synced Oct 21, 2026, 1:35 AM 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 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Vascular Function in Adults With Down Syndrome

NCT07630207
View directory record Official record
Conditions
Down Syndrome (Trisomy 21)
Interventions
Not listed
Lead sponsor
University of Nevada, Las Vegas
Other
Eligibility
18 Years to 35 Years
Enrollment
46 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated Oct 2, 2026 · Synced Oct 21, 2026, 1:35 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Parents as the Primary Sexuality Educators for Their Young Adults With Down Syndrome

NCT03135236
View directory record Official record
Conditions
Down Syndrome, Intellectual Disability, Sexuality, Parent-Child Relations
Interventions
Parent training
Behavioral
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
Not listed
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Park Ridge, Illinois
Source: ClinicalTrials.gov public record
Updated Oct 4, 2024 · Synced Oct 21, 2026, 1:35 AM EDT
Completed Not applicable Interventional Results available

The Promotion of Physical Activity for the Prevention of Alzheimer's Disease in Adults With Down Syndrome

NCT04048759
View directory record Official record
Conditions
Down Syndrome, Alzheimer Disease
Interventions
Remote Low, Remote High, Personal Coach
Behavioral
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years and older
Enrollment
81 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Jul 23, 2024 · Synced Oct 21, 2026, 1:35 AM EDT
Recruiting Not applicable Interventional

Treatment of Obstructive Sleep Apnea With Personalized Surgery in Children With Down Syndrome (TOPS-DS)

NCT05508971
View directory record Official record
Conditions
Obstructive Sleep Apnea, Down Syndrome
Interventions
DISE-Directed Surgery, Adenotonsillectomy
Procedure
Lead sponsor
Oregon Health and Science University
Other
Eligibility
2 Years to 17 Years
Enrollment
304 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
7
States / cities
Aurora, Colorado • Ann Arbor, Michigan • Cincinnati, Ohio + 4 more
Source: ClinicalTrials.gov public record
Updated Sep 11, 2026 · Synced Oct 21, 2026, 1:35 AM 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 AM EDT
Terminated No phase listed Observational

Infant Weight Gain With Trisomy 21 and CAVC

NCT00327951
View directory record Official record
Conditions
Congenital Disorders
Interventions
Not listed
Lead sponsor
Children's Healthcare of Atlanta
Other
Eligibility
Up to 1 Year
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2008
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Mar 16, 2012 · Synced Oct 21, 2026, 1:35 AM EDT
Recruiting Not applicable Interventional

Cooking Skills to Improve Long-Term Weight Loss in Young Adults With Intellectual Disabilities

NCT06961591
View directory record Official record
Conditions
Intellectual Disability, Overweight and Obesity
Interventions
Weight Loss Plus Cooking, Traditional Weight Loss
Behavioral
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years to 35 Years
Enrollment
114 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Aug 11, 2026 · Synced Oct 21, 2026, 1:35 AM EDT
Recruiting Phase 3 Interventional Accepts healthy volunteers

Exploring Sympathetic Nervous System Function in Individuals With Down Syndrome

NCT07238465
View directory record Official record
Conditions
Down Syndrome, Autonomic Dysfunction
Interventions
Cold Stress, Maximal Dynamic Exercise, Isometric Handgrip Exercise with Post-Exercise Muscle Ischemia, Head-up Tilt Table Test
Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 50 Years
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2030
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Oct 13, 2026 · Synced Oct 21, 2026, 1:35 AM EDT
Completed No phase listed Observational

Development of Non-invasive Prenatal Test for Microdeletion and Other Genetic Syndromes Based on Cell Free DNA

NCT02109770
View directory record Official record
Conditions
Microdeletion Syndromes, Trisomy 21, Trisomy 18, Trisomy 13, Sex Chromosome Abnormalities
Interventions
Not listed
Lead sponsor
Natera, Inc.
Industry
Eligibility
Not listed
Enrollment
216 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2019
U.S. locations
2
States / cities
San Carlos, California • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 26, 2019 · Synced Oct 21, 2026, 1:35 AM EDT
Not listed Phase 3 Interventional

Vitamin E in Aging Persons With Down Syndrome

NCT00056329
View directory record Official record
Conditions
Down Syndrome, Alzheimer Disease
Interventions
Vitamin E, multivitamin, Placebo
Drug
Lead sponsor
New York State Institute for Basic Research
Government
Eligibility
50 Years and older
Enrollment
350 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2012
U.S. locations
14
States / cities
Farmington, Connecticut • Tampa, Florida • Atlanta, Georgia + 10 more
Source: ClinicalTrials.gov public record
Updated May 4, 2012 · Synced Oct 21, 2026, 1:35 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Remote Exercise Study for Individuals With Down Syndrome

NCT04647851
View directory record Official record
Conditions
Down Syndrome
Interventions
Remote exercise intervention Down syndrome
Other
Lead sponsor
University of Nevada, Las Vegas
Other
Eligibility
18 Years to 35 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated May 26, 2023 · Synced Oct 21, 2026, 1:35 AM EDT
Terminated Phase 1 Interventional

Hero: A Study to Evaluate the Safety, Tolerability, and Pharmacokinetics (PK) and Pharmacodynamics (PD) of ION269 in Participants With Down Syndrome (DS) at Risk for Alzheimer's Disease (AD)

NCT06673069
View directory record Official record
Conditions
Alzheimer Disease, Down Syndrome
Interventions
ION269
Drug
Lead sponsor
Ionis Pharmaceuticals, Inc.
Industry
Eligibility
35 Years to 55 Years
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
5
States / cities
Indianapolis, Indiana • Kansas City, Kansas • Lexington, Kentucky + 2 more
Source: ClinicalTrials.gov public record
Updated Feb 20, 2026 · Synced Oct 21, 2026, 1:35 AM EDT
Recruiting Phase 2 Interventional

A Study to Compare Blinatumomab Alone to Blinatumomab With Nivolumab in Patients Diagnosed With First Relapse B-Cell Acute Lymphoblastic Leukemia (B-ALL)

NCT04546399
View directory record Official record
Conditions
Down Syndrome, Recurrent B Acute Lymphoblastic Leukemia
Interventions
3-Dimensional Conformal Radiation Therapy, Asparaginase Erwinia chrysanthemi, Biospecimen Collection, Blinatumomab, Bone Marrow Aspiration, Bone Marrow Biopsy, Calaspargase Pegol, Cytarabine, Dexamethasone, Hydrocortisone Sodium Succinate, Lumbar Puncture, Mercaptopurine, Methotrexate, Nivolumab, Pegaspargase, Vincristine Sulfate
Radiation · Drug · Procedure + 1 more
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
1 Year to 30 Years
Enrollment
461 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2028
U.S. locations
211
States / cities
Birmingham, Alabama • Mobile, Alabama • Anchorage, Alaska + 151 more
Source: ClinicalTrials.gov public record
Updated Sep 1, 2026 · Synced Oct 21, 2026, 1:35 AM EDT
Completed Not applicable Interventional Results available

Promoting Health Through Parent Empowerment and the Activation of Routines (PrO-PEAR)

NCT05020366
View directory record Official record
Conditions
Down Syndrome
Interventions
Promoting Health through Parent Empowerment and the Activation of Routines, Enhanced Usual Care
Behavioral
Lead sponsor
University of Pittsburgh
Other
Eligibility
12 Months and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 15, 2024 · Synced Oct 21, 2026, 1:35 AM EDT