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Autism Spectrum Disorder (ASD)Phase 2NCT01395953

Double-blind Trial of Buspirone for the Treatment of Anxiety in Youth With Autism Spectrum Disorders

A Phase 2 study testing Buspirone in people with Autism Spectrum Disorder (ASD), run by Massachusetts General Hospital at 1 site in United States.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

The main objective of this exploratory 8 week pilot study is to evaluate the safety and efficacy of buspirone for the treatment of anxiety in youth (ages 6-17 years) with autism spectrum disorders. Read more about this study

Who is it for?
Ages 6 to 17 years
Conditions the study is for
Autism Spectrum Disorder (ASD)
What is being tested?
Buspirone
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
0 participants
Where
1 siteUnited States
Study dates
Nov 2011to Jul 2013
Phase
Phase 2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 6 to 17 years
  • All sexes
  • No healthy volunteers
  • Child

Who may be able to join

  • Male or female participants between 6 and 17 years of age.
  • Fulfills diagnosis of autism spectrum disorders by meeting DSM-IV-TR PDD diagnostic criteria of autistic disorder, Asperger's disorder, or PDD-NOS as established by clinical diagnostic interview.
  • Participants with a score of ≥60 on the Anxiety/Depression subscale of Child Behavior Checklist (CBCL) and CGI-Anxiety severity of ≥4.
  • Subjects can be on psychotropic drugs if they have been on the medication for at least 4 weeks prior to initiating study treatment and if they are on a stable dose.
  • Subjects with disruptive behavior disorders, mood, or psychosis will be allowed to participate in the study provided they do not meet any exclusionary criteria.

Who cannot join

  • Mental retardation (I.Q. <70)
  • DSM-IV-TR PDD diagnosis of Rett's disorder, and childhood disintegrative disorder.
  • History of active seizure disorder (EEG suggestive of seizure activity and/or history of seizure in last 1 month).
  • Subjects with a medical condition or treatment that will either jeopardize subject safety or affect the scientific merit of the study, including: pregnant or nursing females, organic brain disorders, uncorrected hypothyroidism or hyperthyroidism, clinically significant abnormalities on ECG (e.g. QT prolongation, arrhythmia), history of renal or hepatic impairment.
  • Clinically unstable psychiatric conditions or judged to be at serious suicidal risk.
  • History of substance abuse (except nicotine of caffeine) within past 3 months or urine drug screen positive for substances of abuse.
  • Any other concomitant medication with primary central nervous system activity other than stable regimens for >2 weeks.
  • A non-responder or history of intolerance to buspirone, after treatment at an adequate dose and duration as determined by the clinician.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Massachusetts General Hospital

    Boston, Massachusetts, 02114

Other trials in United States

About this study

The main objective of this exploratory 8 week pilot study is to evaluate the safety and efficacy of buspirone for the treatment of anxiety in youth (ages 6-17 years) with autism spectrum disorders. The study results will be used to generate hypotheses for a larger randomized controlled clinical trial with explicit hypotheses and sufficient statistical power.

Being tested
Buspirone, Placebo
Keywords
Buspirone, Buspar, Autism Spectrum Disorders, Pervasive Developmental Disorders, Children, Adolescents, Anxiety
Medical subject headings
Autism Spectrum Disorder, Child Development Disorders, Pervasive, Anxiety Disorders

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • BuspironeDrug

    Also called Buspar

    Children with Autism Spectrum Disorders will receive buspirone or matched placebo. Buspirone will be titrated to the maximum daily dose during the first four weeks of the trial (dose titration phase). Week 4 onwards subjects will be maintained on maximum achieved dose till the end of the trial (dose maintenance phase). During the titration phase total dose of buspirone will be increased at each visit by 5mg and on the 4th day after each visit by 5mg.

  • PlaceboDrug

    Children with Autism Spectrum Disorders will receive buspirone or matched placebo. Buspirone will be titrated to the maximum daily dose during the first four weeks of the trial (dose titration phase). Week 4 onwards subjects will be maintained on maximum achieved dose till the end of the trial (dose maintenance phase). During the titration phase total dose of buspirone will be increased at each visit by 5mg and on the 4th day after each visit by 5mg.

Study groups in NCT01395953
Study groupRoleWhat they receive
BuspironeActive comparatorNot described
Receives: Drug: Buspirone
PlaceboPlacebo comparatorNot described
Receives: Drug: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Reduction in Pediatric Anxiety Rating Scale (PARS) Score

    Primary outcome measure of efficacy will be assessed by reduction in anxiety symptom severity as measured by change from baseline. Responders are defined as ≥30% reduction in the Pediatric Anxiety Rating Scale (PARS).

    Measured: baseline to 8 weeks

  2. Clinical Global Impression-Anxiety (CGI-Anxiety) Improvement Score

    Primary outcome measure of efficacy will be assessed by reduction in anxiety symptom severity as measured by Clinical Global Impression-Anxiety (CGI-Anxiety). Responders are defined as a score of ≤2 on the improvement subscale (i.e., "much" or "very much improved").

    Measured: baseline to 8 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted18 Jul 2011 (estimated)
  2. Study startNov 2011
  3. Primary completionJul 2013
  4. Study completionJul 2013

Why it stopped: This study was withdrawn due to competing research interests and slow recruitment.

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01395953
Sponsor's protocol ID
2011-P-000703
Status last verified
Jun 2024
First submitted
14 Jul 2011
Last updated
28 Jun 2024
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Buspirone in people with Autism Spectrum Disorder (ASD), run by Massachusetts General Hospital at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: withdrawn, as of the sponsor's last update on 28 Jun 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study was withdrawn before enrolling participants, so there are no results.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Reduction in Pediatric Anxiety Rating Scale (PARS) Score (time frame: baseline to 8 weeks). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 28 Jun 2024.

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