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ClinicalTrials.gov public records Last synced Nov 3, 2026, 1:35 PM EST

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Showing 1–24 of 74 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Prader-willi Syndrome Clear all
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 Nov 3, 2026, 1:35 PM EST
Completed Phase 2 Interventional

Study to Evaluate Efficacy, Safety, and Tolerability of RGH-706 in Prader-Willi Syndrome

NCT05322096
View directory record Official record
Conditions
Prader-Willi Syndrome
Interventions
RGH-706, Placebo
Drug
Lead sponsor
Gedeon Richter Plc.
Industry
Eligibility
17 Years and older
Enrollment
39 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
6
States / cities
San Diego, California • Chicago, Illinois • Brooklyn, New York + 3 more
Source: ClinicalTrials.gov public record
Updated Jun 3, 2024 · Synced Nov 3, 2026, 1:35 PM EST
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 Nov 3, 2026, 1:35 PM EST
Completed No phase listed Observational Accepts healthy volunteers

Development of Non-invasive Prenatal Screening Test for Microdeletions Based on Fetal DNA Isolated From Maternal Blood

NCT01852708
View directory record Official record
Conditions
Trisomy 21, Trisomy 18, Trisomy 13, Sex Chromosome Abnormalities, Microdeletion Syndromes
Interventions
Not listed
Lead sponsor
Natera, Inc.
Industry
Eligibility
18 Years and older
Enrollment
1,059 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2020
U.S. locations
7
States / cities
San Carlos, California • San Gabriel, California • Washington D.C., District of Columbia + 4 more
Source: ClinicalTrials.gov public record
Updated Dec 30, 2020 · Synced Nov 3, 2026, 1:35 PM EST
Completed Phase 2 Interventional Results available

A Study of Oral ARD-101 in Patients With Prader-Willi Syndrome

NCT05153434
View directory record Official record
Conditions
Prader-Willi Syndrome
Interventions
ARD-101
Drug
Lead sponsor
Aardvark Therapeutics, Inc.
Industry
Eligibility
17 Years to 65 Years
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
2
States / cities
Palo Alto, California • Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated Sep 8, 2026 · Synced Nov 3, 2026, 1:35 PM EST
Completed Not applicable Interventional Accepts healthy volunteers Results available

Pilot Study of Startle-response Test to Assess Transcranial Direct Current Stimulation-induced Modulation of Hyperphagia in Prader-Willi Syndrome

NCT01863017
View directory record Official record
Conditions
Hyperphagia, Prader-Willi Syndrome
Interventions
tDCS
Device
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
18 Years to 64 Years
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2016
U.S. locations
3
States / cities
Kansas City, Kansas • Boston, Massachusetts • Dousman, Wisconsin
Source: ClinicalTrials.gov public record
Updated Apr 26, 2019 · Synced Nov 3, 2026, 1:35 PM EST
Completed No phase listed Observational Accepts healthy volunteers

Development of a Newborn Screening Assay for Angelman Syndrome and Prader-Willi Syndrome

NCT05783791
View directory record Official record
Conditions
Angelman Syndrome, Prader-Willi Syndrome
Interventions
Newborn Screening Assay
Diagnostic Test
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
Not listed
Enrollment
11 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Sep 6, 2023 · Synced Nov 3, 2026, 1:35 PM EST
Recruiting Not applicable Interventional

Cerebellar TMS and Satiety in Prader-Willi Syndrome

NCT05938543
View directory record Official record
Conditions
Prader-Willi Syndrome
Interventions
Repetitive Transcranial Magnetic Stimulation (rTMS)
Device
Lead sponsor
Brigham and Women's Hospital
Other
Eligibility
18 Years to 64 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Belmont, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 15, 2026 · Synced Nov 3, 2026, 1:35 PM EST
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 Nov 3, 2026, 1:35 PM EST
Completed Phase 1 Interventional

Oxytocin Trial in Prader-Willi Syndrome

NCT02013258
View directory record Official record
Conditions
Prader Willi Syndrome
Interventions
Intranasal oxytocin, Placebo
Drug · Other
Lead sponsor
University of Florida
Other
Eligibility
5 Years to 11 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015
U.S. locations
3
States / cities
Orange, California • Gainesville, Florida • Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Apr 5, 2018 · Synced Nov 3, 2026, 1:35 PM EST
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 Nov 3, 2026, 1:35 PM EST
Completed No phase listed Observational

Study of Phenotype and Genotype Correlations in Patients With Contiguous Gene Deletion Syndromes

NCT00004351
View directory record Official record
Conditions
Williams Syndrome, Angelman Syndrome, Prader-Willi Syndrome, Shprintzen Syndrome, Smith-Magenis Syndrome, DiGeorge Syndrome, Chromosome Abnormalities
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
0 Years and older
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 1999
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 24, 2005 · Synced Nov 3, 2026, 1:35 PM EST
Completed No phase listed Observational

Hypoglycemia in Prader-Willi Syndrome

NCT01897363
View directory record Official record
Conditions
Prader Willi Syndrome, Hypoglycemia
Interventions
Infants with Prader-Willi Syndrome
Other
Lead sponsor
University of Florida
Other
Eligibility
2 Months to 12 Months
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Sep 25, 2014 · Synced Nov 3, 2026, 1:35 PM EST
Completed No phase listed Observational Accepts healthy volunteers

Sleep Abnormalities in Rare Genetic Disorders: AS, RTT, and PW

NCT02670694
View directory record Official record
Conditions
Rett Syndrome, Prader-Willi Syndrome, Angelman Syndrome, Sleep Problems
Interventions
Not listed
Lead sponsor
Baylor College of Medicine
Other
Eligibility
1 Year to 18 Years
Enrollment
804 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
9
States / cities
Birmingham, Alabama • Irvine, California • San Diego, California + 6 more
Source: ClinicalTrials.gov public record
Updated Feb 2, 2016 · Synced Nov 3, 2026, 1:35 PM EST
Recruiting Phase 4 Interventional

Tirzepatide in PWS, HO and GNSO

NCT06901245
View directory record Official record
Conditions
Prader-Willi Syndrome, Hypothalamic Obesity, Obesity/Therapy
Interventions
Tirzepatide
Drug
Lead sponsor
Grace Kim
Other
Eligibility
18 Years to 26 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
3
States / cities
Saint Paul, Minnesota • Nashville, Tennessee • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Sep 16, 2025 · Synced Nov 3, 2026, 1:35 PM EST
Recruiting Not applicable Interventional Accepts healthy volunteers

Physical Activity and Community EmPOWERment Project

NCT06740162
View directory record Official record
Conditions
Intellectual Disability, Neurodevelopmental Disorders, Autism Spectrum Disorder, Down Syndrome, Fragile X Syndrome, Cri-du-Chat Syndrome, De Lange Syndrome, Mental Retardation, X-Linked, Prader-Willi Syndrome, Rubinstein-Taybi Syndrome, Trisomy 13 Syndrome, WAGR Syndrome, Williams Syndrome
Interventions
PACE Program
Behavioral
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years and older
Enrollment
376 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
2
States / cities
Fayetteville, Arkansas • Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 23, 2026 · Synced Nov 3, 2026, 1:35 PM EST
Completed Phase 3 Interventional Results available

Phase 3 Study of Intranasal Carbetocin (LV-101) in Patients With Prader-Willi Syndrome

NCT03649477
View directory record Official record
Conditions
Prader-Willi Syndrome
Interventions
3.2 mg intranasal carbetocin, 9.6 mg intranasal carbetocin, placebo
Drug
Lead sponsor
Levo Therapeutics, Inc.
Industry
Eligibility
7 Years to 18 Years
Enrollment
130 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2022
U.S. locations
19
States / cities
Birmingham, Alabama • Phoenix, Arizona • Los Angeles, California + 16 more
Source: ClinicalTrials.gov public record
Updated Jul 26, 2022 · Synced Nov 3, 2026, 1:35 PM EST
Not listed Not applicable Interventional

Family-based Intervention for Youth With Prader-Willi Syndrome: The Active Play at Home Study

NCT02058342
View directory record Official record
Conditions
Prader Willi Syndrome, Childhood Obesity
Interventions
Active Play at Home
Behavioral
Lead sponsor
California State University, Fullerton
Other
Eligibility
8 Years to 15 Years
Enrollment
115 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
2
States / cities
Fullerton, California • Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Feb 10, 2014 · Synced Nov 3, 2026, 1:35 PM EST
Completed Phase 2 Interventional Results available

A Study of GLWL-01 in Patients With Prader-Willi Syndrome

NCT03274856
View directory record Official record
Conditions
Prader-Willi Syndrome
Interventions
GLWL-01, Placebo
Drug
Lead sponsor
GLWL Research Inc.
Other
Eligibility
16 Years to 65 Years
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
4
States / cities
San Diego, California • Gainesville, Florida • Cleveland, Ohio + 1 more
Source: ClinicalTrials.gov public record
Updated Mar 27, 2020 · Synced Nov 3, 2026, 1:35 PM EST
Completed Not applicable Interventional Results available

Effects of Exenatide on Overweight Adolescents With Prader-Willi Syndrome

NCT01444898
View directory record Official record
Conditions
Prader-Willi Syndrome
Interventions
Exenatide
Drug
Lead sponsor
Children's Hospital Los Angeles
Other
Eligibility
13 Years to 20 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Sep 29, 2016 · Synced Nov 3, 2026, 1:35 PM EST
Terminated Not applicable Interventional

Optimizing the Social Engagement System in Prader-Willi Syndrome: Insights From the Polyvagal Theory

NCT03101826
View directory record Official record
Conditions
Prader-Willi Syndrome
Interventions
Listening Project Protocol
Behavioral
Lead sponsor
Indiana University
Other
Eligibility
13 Years to 25 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2023
U.S. locations
1
States / cities
Brewster, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 3, 2023 · Synced Nov 3, 2026, 1:35 PM EST
Terminated Phase 3 Interventional

Effect of Rimonabant on Weight Gain and Body Composition in Adults With Prader Willi Syndrome

NCT00603109
View directory record Official record
Conditions
Prader-willi Syndrome
Interventions
rimonabant, placebo
Drug
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years to 35 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Mar 20, 2023 · Synced Nov 3, 2026, 1:35 PM EST
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 Nov 3, 2026, 1:35 PM EST
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Understanding the Role of Gut Microbiota in Hyperphagia in Prader-Willi Syndrome

NCT05541003
View directory record Official record
Conditions
Prader-Willi Syndrome, Obesity
Interventions
NBT-NM108
Drug
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years to 35 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated Jul 16, 2024 · Synced Nov 3, 2026, 1:35 PM EST