Withdrawal Study of Memantine in Pediatric Patients With Autism, Asperger's Disorder, or Pervasive Developmental Disorder Not Otherwise Specified Previously Treated With Memantine

Autism Clinical Trial

Official title:
A Double-Blind, Placebo-Controlled, Randomized Withdrawal Study of the Safety and Efficacy of Memantine in Pediatric Patients With Autism, Asperger's Disorder, or Pervasive Developmental Disorder Not Otherwise Specified (PDD-NOS) Previously Treated With Memantine

Status Completed

Clinical Trial Summary

The purpose of this randomized withdrawal study is to evaluate the safety, tolerability, and efficacy of memantine compared with placebo in pediatric patients with autism, Asperger's Disorder, or Pervasive Developmental Disorder Not Otherwise Specified (PDD-NOS).

Clinical Trial Description

This clinical study was a 12-week, multicenter, double-blind, placebo-controlled, randomized withdrawal study in pediatric outpatients with autism, Asperger's Disorder, or Pervasive Developmental Disorder Not Otherwise Specified (PDD-NOS). Patients who completed at least 12 weeks of study drug exposure and met protocol specified responder criterion in lead in Study MEM-MD-91 (NCT01592786) at two consecutive visits separated by at least two weeks were eligible to transition to this study. The responder criterion was defined as having at least a 10 point improvement (reduction in score) in the Social Responsiveness Scale (SRS) total raw score relative to the Visit 1 total raw score in Study MEM-MD-91.

Weight based dose limits were selected in this study to ensure that exposure in terms of area under the curve (AUC) was less than the predefined limit of 2100 ng·h/mL which represents a 10-fold lower exposure than observed at the NOAEL(No observed adverse effect level) of 15 mg/kg/day in juvenile rats.

The weight-based dose limits in this study were as follows:

- Group A: ≥ 60 kg; maximum 15 mg/day

- Group B: 40-59 kg; maximum 9 mg/day

- Group C: 20-39 kg; maximum 6 mg/day

- Group D: < 20 kg; maximum 3 mg/day ;

Study Design

Related Conditions & MeSH terms

Asperger Syndrome
Asperger's Disorder
Autism
Autism Spectrum Disorder
Autism Spectrum Disorders
Autistic Disorder
Child Development Disorders, Pervasive
Developmental Disabilities
Disease
Pervasive Developmental Disorder - Not Otherwise Specified (PDD-NOS)

Clinical Trial Details

NCT number	NCT01592747
Study type	Interventional
Source	Forest Laboratories
Contact
Status	Completed
Phase	Phase 2
Start date	September 2012
Completion date	October 2013

View Details

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.