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Completed Phase 2 Interventional Results available

Safety, Tolerability and Efficacy Study of STX209 in Subjects With Fragile X Syndrome

ClinicalTrials.gov ID: NCT00788073

Public ClinicalTrials.gov record NCT00788073. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Jul 22, 2026, 8:26 AM EDT

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

Official title

A Double-Blind, Placebo-Controlled, Crossover, Flexible-Dose Evaluation of the Efficacy, Safety and Tolerability of STX209 in the Treatment of Irritability in Subjects With Fragile X Syndrome

Study identification

NCT ID
NCT00788073
Recruitment status
Completed
Study type
Interventional
Phase
Phase 2
Lead sponsor
Seaside Therapeutics, Inc.
Industry
Enrollment
63 participants

Conditions and interventions

Interventions

  • STX209 Drug
  • Placebo Drug

Drug

Eligibility (public fields only)

Age range
6 Years to 40 Years
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Oct 31, 2008
Primary completion
Feb 28, 2010
Completion
Apr 30, 2010
Last update posted
May 5, 2013

2008 – 2010

United States locations

U.S. sites
12
U.S. states
11
U.S. cities
12
Facility City State ZIP Site status
Southwest Autism Research & Resource Center Phoenix Arizona 85006
University of California-Los Angeles Neuropsychiatric Institute Los Angeles California 90024
M.I.N.D. Institute Sacramento California 95817
Rush University Medical Center Chicago Illinois 60612
Riley Hospital for Children Indianapolis Indiana 46202
Children's Hospital Boston Boston Massachusetts 02115
NYS Institute for Basic Research in Developmental Disabilities Staten Island New York 10314
University of North Carolina Neurosciences Hospital Chapel Hill North Carolina 27514
Suburban Research Associates Media Pennsylvania 19063
Vanderbilt Kennedy Center Nashville Tennessee 37203
Red Oaks Psychiatry Associates, P.A. Houston Texas 77090
Seattle Children's Hospital Seattle Washington 98101

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT00788073, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted May 5, 2013 · Synced Jul 22, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT00788073 live on ClinicalTrials.gov.

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