Dose Finding Study of Pioglitazone in Children With Autism Spectrum Disorders (ASD) (PIO)

This study is ongoing, but not recruiting participants.
Holland Bloorview Kids Rehabilitation Hospital
Information provided by (Responsible Party):
Evdokia Anagnostou, Anagnostou, Evdokia, M.D. Identifier:
First received: September 16, 2010
Last updated: October 23, 2015
Last verified: October 2015
The investigators propose a pilot, single blind, placebo run-in, dose finding study of pioglitazone in children with autism with the ultimate goal of identifying appropriate dosing and outcome measures for a larger follow-up randomized placebo controlled clinical trial. The specific aims of this study are: 1) To examine the safety of pioglitazone in children with autism spectrum disorders (ASD) ages 5-12 years; 2) To identify appropriate outcome measures to be used in a follow-up multisite randomized control trial of pioglitazone in children with ASD; 3) To determine the maximum tolerated dose to be used in the follow-up multisite randomized controlled trial; 4) To examine the effect of pioglitazone on markers of inflammation (cytokine levels) and oxidative stress (superoxide dismutase, malonyl aldehydes); 5) To explore the relationship between different doses and response to treatment.

Condition Intervention Phase
Autism Spectrum Disorders
Drug: Pioglitazone
Phase 2

Study Type: Interventional
Study Design: Endpoint Classification: Safety Study
Intervention Model: Single Group Assignment
Masking: Single Blind (Subject)
Primary Purpose: Treatment
Official Title: A Pilot Dose Finding Study of Pioglitazone in Children With ASD

Resource links provided by NLM:

Further study details as provided by Anagnostou, Evdokia, M.D.:

Primary Outcome Measures:
  • Clinical Global Impression - Improvement (CGI-I) [ Time Frame: 2 years ] [ Designated as safety issue: Yes ]

Estimated Enrollment: 35
Study Start Date: April 2013
Estimated Study Completion Date: November 2015
Estimated Primary Completion Date: November 2015 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Pioglitazone Drug: Pioglitazone
A modified dose finding method will be used to determine safety and dose response among three dose levels (0.25mg/kg qd, 0.5mg/kg qd, and 0.75mg/kg qd). The dose has been based on the per weight maximum adult dose (see Dose Calculation Chart). Specifically, the FDA has approved 45mg as the maximum adult dose. For a 60kg adult, this is 0.75mg/kg.


Ages Eligible for Study:   5 Years to 12 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  1. Male or female outpatients 5-12 years of age inclusive (see Note below).
  2. Meet Diagnostic and Statistical Manual of Mental Disorders, 4th Edition, Text Revision criteria. DSM-IV criteria for Autistic Disorder or Asperger's Disorder (autism spectrum disorder) will be confirmed by a clinician with expertise with individuals with ASD. Best estimate Diagnosis will be reached using DSM-IV criteria, the Autism Diagnostic Observation Schedule (ADOS-G) and the Autism Diagnostic Interview-Revised (ADI-R).
  3. Have a Clinical Global Impression-Severity (CGI-S) score ≥ 4 (moderately ill) at Baseline.
  4. If already receiving stable non-pharmacologic educational, behavioural, and/or dietary interventions, have continuous participation during the preceding 3 months prior to Screening and will not electively initiate new or modify ongoing interventions for the duration of the study.
  5. Have normal physical examination and laboratory test results at Screening. If abnormal, the finding(s) must be deemed clinically insignificant by the Investigator.

Exclusion Criteria:

  1. Patients born prior to 35 weeks gestational age.
  2. Families without sufficient command of the English Language.
  3. Patients with any primary psychiatric diagnosis other than autism at Screening.
  4. Patients with a current neurological disease, including, but not limited to, movement disorder, tuberous sclerosis, fragile X, and any other known genetic syndromes.
  5. Pregnant female patients, female patients who are sexually active, female patients using the birth control pill for whatever reason.
  6. Patients with a medical condition that might interfere with the conduct of the study, confound interpretation of the study results, or endanger their own well-being. Patients with evidence or history of malignancy or any significant hematological, endocrine, cardiovascular (including any rhythm disorder), respiratory, renal, hepatic, or gastrointestinal disease. Patients with stable epilepsy (no seizures for 6 months) and on stable doses of antiepileptic medications (no changes in 3 months) will be allowed in the study.
  7. Patients taking psychoactive medication(s).
  8. Patients taking insulin.
  9. Patients unable to tolerate venipuncture procedures for blood sampling.
  10. Patients with parent(s)/caregiver(s) who smoke.
  11. Patients who have had previous bladder infection(s).
  12. Patients with a family history of bladder cancer.
  Contacts and Locations
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Please refer to this study by its identifier: NCT01205282

Canada, Ontario
Holland Bloorview Kids Rehabilitation Hospital
Toronto, Ontario, Canada, M4G 1R8
Sponsors and Collaborators
Evdokia Anagnostou
Holland Bloorview Kids Rehabilitation Hospital
Principal Investigator: Evdokia Anagnostou, MD Holland Bloorview Kids Rehabilitation Hospital
  More Information

No publications provided

Responsible Party: Evdokia Anagnostou, Clinician Scientist, Anagnostou, Evdokia, M.D. Identifier: NCT01205282     History of Changes
Other Study ID Numbers: 10-002
Study First Received: September 16, 2010
Last Updated: October 23, 2015
Health Authority: Canada: Health Canada

Keywords provided by Anagnostou, Evdokia, M.D.:

Additional relevant MeSH terms:
Child Development Disorders, Pervasive
Mental Disorders
Mental Disorders Diagnosed in Childhood
Hypoglycemic Agents
Pharmacologic Actions
Physiological Effects of Drugs processed this record on November 30, 2015