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Open Label Extension Study of STX209 (Arbaclofen) in Autism Spectrum Disorders

Phase 3
Terminated
Conditions
Autism Spectrum Disorders
Interventions
Drug: STX209 (arbaclofen)
Registration Number
NCT01706523
Lead Sponsor
Seaside Therapeutics, Inc.
Brief Summary

This is an open-label extension protocol that will provide necessary data on the safety, tolerability, pharmacokinetics and efficacy of STX209 among subjects with ASD.

Detailed Description

This is an open label extension study enrolling by invitation only to those subjects that have completed Seaside protocols 209AS208 and 22007.

Protocol 209AS208, "A Randomized,Double-Blind, Placebo-Controlled, Study of the Efficacy, Safety, and Tolerability of STX209 (Arbaclofen) Administered for the Treatment of Social Withdrawal in Subjects with Autism Spectrum Disorders."

Protocol 22007, "An Open Label Extension Study to Evaluate the Safety, Tolerability and Pharmacokinetics of STX209 in Subjects with Autism Spectrum Disorder."

This open-label extension will provide data on the following:

1. Evaluate the safety and tolerability of long term use of STX209 (Arbaclofen)

2. Provide supporting pharmacokinetic analyses

3. Assess long term efficacy on social behaviors in subjects with ASD.

Recruitment & Eligibility

Status
TERMINATED
Sex
All
Target Recruitment
165
Inclusion Criteria
  • Subject completed study 22007 or 209AS208, and showed he can adequately follow the protocol, and with adequate medical justification to enter this study.
  • Parent or other legally-authorized representative or caregiver is willing and able to perform all protocol-specified functions.
  • Treatment with no more than 2 psychoactive medications
  • Subjects with a history of seizure disorder must be adequately well-controlled, as specified in the study protocol
  • For female subjects, negative pregnancy test
Exclusion Criteria
  • Comorbid conditions that might interfere with the conduct of the study or confound the interpretation of the study data, or endanger the subject.
  • Current use of illicit drugs or alcohol abuse.
  • Subjects with a serious adverse event or other adverse event in study 22007 or 209AS208 that was related to STX209, and that endangers the subject, in the opinion of the investigator
  • Current use of another investigational drug, or of vigabatrin, tiagabine, or riluzole

Study & Design

Study Type
INTERVENTIONAL
Study Design
SINGLE_GROUP
Arm && Interventions
GroupInterventionDescription
STX209STX209 (arbaclofen)Active treatment with STX209
Primary Outcome Measures
NameTimeMethod
Safety and tolerability of STX209100 weeks

Spontaneously-reported adverse events, physical examination, and clinical laboratory assessments

Secondary Outcome Measures
NameTimeMethod
Aberrant Behavior Checklist100 weeks

Open-label assessment of change from baseline on the ABC

Trial Locations

Locations (25)

University of Missouri, Thompson Research Center for Autism & Neurodevelopmental Disorders

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Columbia, Missouri, United States

Red Oaks Psychiatry Associates, P.A.

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Houston, Texas, United States

Seattle Children's Hospital

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Seattle, Washington, United States

Seaver Autism Center, Mount Sinai Medical Center

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New York, New York, United States

Suburban Research Associates

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Media, Pennsylvania, United States

University of Massachusetts

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Worcester, Massachusetts, United States

Southwest Autism Research & Resource Center

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Phoenix, Arizona, United States

Kennedy Krieger Institute

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Baltimore, Maryland, United States

NYS Institute for Basic Research in Developmental Disabilities

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Staten Island, New York, United States

Boston Children's Hospital

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Boston, Massachusetts, United States

Institute for Behavioral Medicine

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Smyrna, Georgia, United States

University of California-Los Angeles Neuropsychiatric Institute

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Los Angeles, California, United States

Institute for Juvenile Research

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Chicago, Illinois, United States

Lake Mary Pediatrics

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Orange City, Florida, United States

UCDavis M.I.N.D Insitute

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Sacramento, California, United States

UNC Chapel Hill Department of Psychiatry

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Chapel Hill, North Carolina, United States

Children's Hospital of Philadelphia

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Philadelphia, Pennsylvania, United States

Vanderbilt Kennedy Center

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Nashville, Tennessee, United States

Pharmax Research Clinic

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Miami, Florida, United States

Riley Hospital for Children

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Indianapolis, Indiana, United States

Road Runner Research

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San Antonio, Texas, United States

Akron Children's Hospital

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Akron, Ohio, United States

University of Tennessee Medical Group, LeBonheur Children's Hospital

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Memphis, Tennessee, United States

Cutting Edge Research

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Oklahoma City, Oklahoma, United States

Summit Research Network

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Portland, Oregon, United States

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