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Clinical Trial Summary

The purpose of this study is to determine if the known differences in genes influence drug metabolizing enzymes and receptors that are involved in risperidone drug action. The study will determine if differences in these genes will change the concentration of risperidone in the blood over time in children in relation to side effects and clinical response to risperidone.


Clinical Trial Description

To the knowledge of the investigators there are no studies documenting the pharmacokinetics and pharmacogenetics of risperidone in children with PDD. Currently the PPRU network is conducting a PK study whose aim is to establish a new enantio-selective micro-assay methodology and to generate preliminary population PK data of risperidone and its metabolites in PDD. This study focuses on pharmacogenetic evaluation of PDD patients having little or no effect, those that are unusually sensitive and those experiencing drug toxicity/adverse events at standard risperidone dosages.

In this study two 5 ml blood samples will be drawn at a regulary scheduled PK visit. Alternatively pooled waste blood samples or a buccal swab can be obtained. ;


Study Design

Primary Purpose: Treatment


Related Conditions & MeSH terms


NCT number NCT00166595
Study type Interventional
Source Children's Hospital Medical Center, Cincinnati
Contact
Status Completed
Phase Phase 1/Phase 2
Start date February 2003
Completion date March 2005

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