Clinical Trials Finder
Independent ClinicalTrials.gov directory
Search Results

Search by objective public record fields.

Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.

Clear filters
ClinicalTrials.gov public records Last synced May 22, 2026, 5:47 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–24 of 153 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Sex Chromosome Abnormalities Clear all
Completed Phase 2 Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Gonadal Dysgenesis, Turner's Syndrome
Interventions
cognitive tests and scales
Behavioral
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
Not listed
Enrollment
950 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1990 – 2004
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced May 22, 2026, 5:47 AM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Fragile X Syndrome
Interventions
Sertraline, Placebo
Drug
Lead sponsor
Randi J. Hagerman, MD
Other
Eligibility
24 Months to 68 Months
Enrollment
57 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Sep 24, 2017 · Synced May 22, 2026, 5:47 AM EDT
Completed Phase 3 Interventional
View directory record Official record
Conditions
Fragile X Syndrome
Interventions
BPN14770/ zatolmilast, Placebo
Drug
Lead sponsor
Tetra Discovery Partners
Industry
Eligibility
18 Years to 45 Years · Male only
Enrollment
171 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2025
U.S. locations
17
States / cities
Irvine, California • Orange, California • Sacramento, California + 14 more
Source: ClinicalTrials.gov public record
Updated Jul 22, 2025 · Synced May 22, 2026, 5:47 AM EDT
Completed Phase 2 Interventional
View directory record Official record
Conditions
Fragile X Syndrome
Interventions
AFQ056, Placebo
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years to 45 Years
Enrollment
175 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
12
States / cities
Phoenix, Arizona • Sacramento, California • Decatur, Georgia + 9 more
Source: ClinicalTrials.gov public record
Updated Dec 22, 2020 · Synced May 22, 2026, 5:47 AM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers
View directory record Official record
Conditions
Turner Syndrome
Interventions
ANS training
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
6 Years to 40 Years · Female only
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated May 8, 2022 · Synced May 22, 2026, 5:47 AM EDT
Withdrawn No phase listed Observational
View directory record Official record
Conditions
Klinefelter Syndrome
Interventions
Not listed
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
2 Years to 21 Years · Male only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2008
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Dec 2, 2015 · Synced May 22, 2026, 5:47 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers
View directory record Official record
Conditions
Down Syndrome (Trisomy 21), Edward's Syndrome (Trisomy 18), Patau Syndrome (Trisomy 13), Klinefelter Syndrome (47, XXY), and Other Chromosome, Abnormalities.
Interventions
Not listed
Lead sponsor
Lenetix Medical Screening Laboratory
Industry
Eligibility
18 Years and older · Female only
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009
U.S. locations
7
States / cities
Rockville, Maryland • Moristown, New Jersey • Mineola, New York + 3 more
Source: ClinicalTrials.gov public record
Updated Apr 30, 2009 · Synced May 22, 2026, 5:47 AM EDT
Withdrawn No phase listed Observational
View directory record Official record
Conditions
Autism, Autism Spectrum Disorder, Autistic Disorder, Autism, Akinetic, Autism; Atypical, Autism; Psychopathy, Autism Fragile Syndrome X, Autism With High Cognitive Abilities, Autism-Related Speech Delay, Autism, Susceptibility to, 6, Autism Spectrum Disorder High-Functioning, Autistic Thinking, Autism, Susceptibility to, X-Linked 6, Autistic Behavior
Interventions
No Intervention
Other
Lead sponsor
ProgenaBiome
Other
Eligibility
6 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2030
U.S. locations
1
States / cities
Ventura, California
Source: ClinicalTrials.gov public record
Updated Jun 4, 2025 · Synced May 22, 2026, 5:47 AM EDT
Terminated Phase 1 Interventional
View directory record Official record
Conditions
Turner's Syndrome
Interventions
Norditropin, Menostar 14mcg patch, Vivelle dot 25mcg patch
Drug
Lead sponsor
University of Chicago
Other
Eligibility
138 Months to 13 Years · Female only
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2011
U.S. locations
3
States / cities
Chicago, Illinois • Baltimore, Maryland • Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Mar 10, 2014 · Synced May 22, 2026, 5:47 AM EDT
Completed Phase 1 Interventional
View directory record Official record
Conditions
Fragile X Syndrome
Interventions
AZD7325 (High-Dose), AZD7325 (Low-Dose), Placebo oral capsule
Drug
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
18 Years to 50 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 7, 2021 · Synced May 22, 2026, 5:47 AM EDT
Terminated No phase listed Observational
View directory record Official record
Conditions
Klinefelter Syndrome
Interventions
Counseling
Other
Lead sponsor
University of Pittsburgh
Other
Eligibility
12 Years to 25 Years · Male only
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
2
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 23, 2018 · Synced May 22, 2026, 5:47 AM EDT
Completed Phase 1Phase 2 Interventional
View directory record Official record
Conditions
Fragile X Syndrome
Interventions
NPL-2009
Drug
Lead sponsor
Neuropharm
Industry
Eligibility
18 Years to 45 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008
U.S. locations
2
States / cities
Sacramento, California • Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 26, 2012 · Synced May 22, 2026, 5:47 AM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Fragile X Syndrome (FXS)
Interventions
OV101 (gaboxadol)
Drug
Lead sponsor
Healx AI
Industry
Eligibility
13 Years to 22 Years · Male only
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
6
States / cities
Sacramento, California • Aurora, Colorado • Chicago, Illinois + 3 more
Source: ClinicalTrials.gov public record
Updated Jan 22, 2024 · Synced May 22, 2026, 5:47 AM EDT
Terminated No phase listed Observational
View directory record Official record
Conditions
Turner Syndrome, Idiopathic Short Stature
Interventions
somatropin (rDNA)
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
7 Years to 14 Years · Female only
Enrollment
1 participant
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2008
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Sep 28, 2009 · Synced May 22, 2026, 5:47 AM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Male Infertility, Klinefelter's Syndrome, Y-chromosome Microdeletions
Interventions
13-cis retinoic acid, Calcitriol
Drug
Lead sponsor
University of Washington
Other
Eligibility
21 Years to 60 Years · Male only
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
1
States / cities
Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Aug 1, 2021 · Synced May 22, 2026, 5:47 AM EDT
Completed Phase 1 Interventional
View directory record Official record
Conditions
Fragile X Syndrome
Interventions
AFQ056
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
3 Years to 11 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2013
U.S. locations
3
States / cities
Sacramento, California • Chicago, Illinois • Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Dec 7, 2020 · Synced May 22, 2026, 5:47 AM EDT
Recruiting Phase 3 Interventional
View directory record Official record
Conditions
Turner Syndrome, Short Stature Homeobox Gene Mutation, Idiopathic Short Stature, Small for Gestational Age at Delivery
Interventions
Lonapegsomatropin [SKYTROFA®], Somatropin Pen Injector
Combination Product
Lead sponsor
Ascendis Pharma A/S
Industry
Eligibility
2 Years to 17 Years
Enrollment
186 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
9
States / cities
Sacramento, California • Centennial, Colorado • Orlando, Florida + 6 more
Source: ClinicalTrials.gov public record
Updated May 18, 2026 · Synced May 22, 2026, 5:47 AM EDT
Recruiting No phase listed Observational
View directory record Official record
Conditions
Turner Syndrome
Interventions
Research genetic tests
Genetic
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
Female only
Enrollment
200 participants
Timeline
2015 – 2035
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Nov 27, 2023 · Synced May 22, 2026, 5:47 AM EDT
Completed Phase 2 Interventional Results available
View directory record Official record
Conditions
Fragile X Syndrome
Interventions
Aripiprazole
Drug
Lead sponsor
Indiana University
Other
Eligibility
5 Years to 35 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Apr 17, 2017 · Synced May 22, 2026, 5:47 AM EDT
Not listed Phase 1Phase 2 Interventional
View directory record Official record
Conditions
Fragile X Syndrome
Interventions
Metformin, Placebo oral tablet
Drug
Lead sponsor
Rowan University
Other
Eligibility
18 Years to 50 Years · Male only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
1
States / cities
Stratford, New Jersey
Source: ClinicalTrials.gov public record
Updated Oct 30, 2019 · Synced May 22, 2026, 5:47 AM EDT
Completed No phase listed Observational
View directory record Official record
Conditions
Turner Syndrome, Turner Syndrome Mosaicism, 45, X/46, XX or XY, Turner Syndrome Mosaicism 46,X,I(X)(Q10)/45,X, Turner Syndrome Karyotype 46,X With Abnormal Sex Chromosome , Except I(Xq)
Interventions
No intervention
Other
Lead sponsor
University of Colorado, Denver
Other
Eligibility
12 Years to 21 Years · Female only
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated May 2, 2021 · Synced May 22, 2026, 5:47 AM EDT
Completed Phase 2 Interventional
View directory record Official record
Conditions
Fragile X Syndrome, Autism
Interventions
CX516 (Ampalex®)
Drug
Lead sponsor
RespireRx
Industry
Eligibility
18 Years to 50 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2002
U.S. locations
2
States / cities
Sacramento, California • Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 23, 2005 · Synced May 22, 2026, 5:47 AM EDT
Completed Phase 2 Interventional
View directory record Official record
Conditions
Fragile X Syndrome
Interventions
SPG601, Placebo
Drug
Lead sponsor
Spinogenix
Industry
Eligibility
18 Years to 45 Years · Male only
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 13, 2025 · Synced May 22, 2026, 5:47 AM EDT
Completed Phase 1 Interventional
View directory record Official record
Conditions
Angelman Syndrome, Fragile X Syndrome
Interventions
OV101
Drug
Lead sponsor
Healx AI
Industry
Eligibility
13 Years to 17 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017
U.S. locations
2
States / cities
Chicago, Illinois • Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Nov 29, 2017 · Synced May 22, 2026, 5:47 AM EDT