CI

At a glance

ClinicalIndex Comparison Record
Phase 3Completed· 60 enrolled
Drug / intervention
Metformin +1 moredrug
Likely dose
Metformin 100 mgfrom record
Structured eligibility isn't available for this trial yet — see the full criteria in the Eligibility tab below.

Standardized by ClinicalIndex from the ClinicalTrials.gov record · verify against the source.

Search/NCT01825798
NCT01825798Phase 3Completed

Treatment of Overweight Induced by Antipsychotic Medication in Young People With Autism Spectrum Disorders (ASD)

Holland Bloorview Kids Rehabilitation Hospital·interventional·Posted Apr 8, 2013·Updated Jul 16, 2025

In Brief

A Phase 3 clinical trial evaluating Metformin and Placebo for Overweight and Autism Spectrum Disorder. Completed, enrolled 60 participants across 4 sites in 2 countries.

Detailed Summary

The purpose of this study is to determine whether metformin is safe and effective in the treatment of weight or weight gain in young people with Autism Spectrum Disorders (ASD) who are currently taking atypical antipsychotic medication.

Study Details

Study Typeinterventional
Allocation--
Masking--
Primary Purpose--
CountriesCanada, United States

Timeline

Phase 3CompletedFinished
20132014201520162017201820192020202120222023202420252026
First PostedApr 8, 2013
Enrollment StartApr 1, 2013
Primary CompletionJun 1, 2015
Study CompletionOct 1, 2015
TodayJul 2, 2026
Enrollment to primary: 2.2 yearsPosted 13.2 years ago

Interventions

Metformindrug

Metformin will be dispensed in a liquid suspension of 100 mg/mL. For children 6-9 years of age, metformin will be started at 250 mg at their evening meal for 1 week, followed by the addition of a 250 mg dose at breakfast for 1 week. At the Week 2 visit, if metformin is well-tolerated, the dose will be increased to 500 mg twice daily. For children from 10-17 years of age, metformin will be started at 250 mg at their evening meal for 1 week, followed by the addition of a 250 mg dose at breakfast for 1 week. At the Week 2 visit, if metformin is well-tolerated, the dose will be increased to 500 mg twice daily. At the Week 4 visit, if metformin is well-tolerated, the dose will be increased to 850 mg twice daily.

Placebodrug

The placebo hydrochloride oral solution will be prepared to match the appearance, smell and taste of the metformin as closely as possible. For children from 6-9 years of age, placebo will be started at 250 mg at their evening meal for 1 week, followed by the addition of a 250 mg dose at breakfast for 1 week. At the Week 2 visit, if placebo is well-tolerated, the dose will be increased to 500 mg twice daily. For children from 10-17 years of age, placebo will be started at 250 mg at their evening meal for 1 week, followed by the addition of a 250 mg dose at breakfast for 1 week. At the Week 2 visit, if placebo is well-tolerated, the dose will be increased to 500 mg twice daily. At the Week 4 visit, if placebo is well-tolerated, the dose will be increased to 850 mg twice daily.