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Study of Arbaclofen for the Treatment of Social Withdrawal in Subjects With Autism Spectrum Disorders

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

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01288716
Enrollment
150
Registered
2011-02-02
Start date
2011-05-31
Completion date
2012-09-30
Last updated
2013-07-31

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Autism Spectrum Disorders

Keywords

ASD, Autism, Asperger Syndrome

Brief summary

To explore the efficacy, safety and tolerability of STX209 (arbaclofen) administered for the treatment of social withdrawal in subjects with autism spectrum disorders

Interventions

Sponsors

Seaside Therapeutics, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
5 Years to 21 Years
Healthy volunteers
No

Inclusion criteria

* Diagnosis of Autism Spectrum Disorders (ASD) * Current pharmacological treatment regimen has been stable for at least 4 weeks prior to Screening. * Subjects with a history of seizure disorder must currently be receiving treatment with antiepileptics and must have been seizure free for 6 months, or must be seizure free for 3 years if not currently receiving antiepileptics. * If the subject is already receiving stable non-pharmacologic educational, behavioral, and/or dietary interventions, participation in these programs must have been continuous during the 2 months prior to Screening

Exclusion criteria

* Subjects with any condition, including alcohol and drug abuse, which might interfere with the conduct of the study, confound interpretation of the study results, or endanger their own well-being. * Subjects who plan to initiate or change pharmacologic or non-pharmacologic interventions during the course of the study. * Subjects who have taken another investigational drug within the last 30 days. * Subjects who are not able to take oral medications

Design outcomes

Primary

MeasureTime frame
Aberrant Behavior Checklist-Social Withdrawal SubscaleAt 8 weeks of treatment

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026