To print: Select File and then Print from your browser's menu --------------------------------------------------------------------------------------- Title: Preschoolers With Three or More Coexisting Disorders Show No Response to ADHD Medication Treatment URL: http://www.pslgroup.com/dg/216BCE.htm Doctor's Guide November 5, 2007
BETHESDA, MD -- November 5, 2007 -- Preschoolers who are diagnosed with attention-deficit hyperactivity disorder (ADHD) are not likely to respond to treatment with the stimulant methylphenidate, regardless of dosage, if they also have three or more coexisting disorders, according to a recent analysis of data from the Preschoolers with ADHD Treatment Study (PATS). Previously reported PATS results showed that overall, low doses of methylphenidate were safe and effective in treating 3-5-year-olds diagnosed with ADHD. This most recent study, one of seven new PATS articles published November 5, 2007, in the Journal of Child and Adolescent Psychopharmacology, sought to identify individual characteristics that may affect how a child would respond to treatment. The other articles examine topics such as the effectiveness of methylphenidate over a follow-up phase, the effects of the medication on functional outcomes for the preschoolers, and others. "This new data is an important step forward in bridging the gap between research results and clinical practice, bringing potentially valuable information to clinicians about ways to better customize treatments for their patients," said NIMH Director Thomas R. Insel, MD. "It also identifies a group of young children who have significant and multiple problems, and for whom more research is needed to identify effective treatments." Analyzing data from 165 children, Jaswinder Ghuman, MD, of the University of Arizona, and colleagues examined demographic and family characteristics that may predict response to ADHD treatment. Among the children, 29% had no coexisting disorders, 42% had one coexisting disorder, 21% had two coexisting disorders, and 9% had three or more coexisting disorders. Oppositional defiant disorder, conduct disorder and anxiety disorders were the most common coexisting disorders. The researchers found that children with no or only one coexisting disorder were most likely to respond to methylphenidate, while those with two coexisting disorders were moderately likely to respond. Children with three or more coexisting disorders did not respond at all to the treatment. They also found no demographic characteristics (e.g., gender, age, ethnicity) that predicted how a child would respond to methylphenidate. However, children with three or more coexisting disorders were more likely to have a lower socioeconomic status, and lived with parents who were less educated and unemployed. In addition, these children also were more likely to live in a single-parent household. "These results need to be replicated before they can be translated into practical recommendations," said Dr. Ghuman. "But they are a solid reminder that we need to find better treatments for children with multiple disorders and challenging circumstances." The findings are consistent with the NIMH-funded Multimodal Treatment Study of Children with ADHD (MTA), which found that school-aged children with more coexisting disorders were less likely to respond to ADHD treatment. PATS was funded by the National Institutes of Health's National Institute of Mental Health (NIMH). REFERENCE: Ghuman JK, Riddle MA, Vitiello B, Greenhill LL, Chuang S, Wigal S, Kollins S, Abikoff H, McCracken J, Kastelic El, Scharko AM, McGough J, Murray D, Evans L, Swanson J, Wigal T, Posner K, Cunningham C, Davies M, Skrobala A. Comorbidity moderates response to methylphenidate in the preschoolers with attention deficit/hyperactivity disorder. Journal of Child and Adolescent Psychopharmacology. Oct 2007. SOURCE: National Institutes of Health --------------------------------------------------------------------------------------------- Copyright © 1999 P\S\L Consulting Group Inc. All rights reserved. Republication or redistribution of P\S\L content is expressly prohibited without the prior written consent of P\S\L. P\S\L shall not be liable for any errors, omissions or delays in this content or any other content on its sites, newsletters or other publications, nor for any decisions or actions taken in reliance on such content. --------------------------------------------------------------------------------------------- This news story was printed from *Doctor's Guide to the Internet* located at http://www.docguide.com --------------------------------------------------------------------------------------- Return to News Story Page This site is maintained by webmaster@pslgroup.com Please contact us with any comments, problems or bugs. All contents Copyright (c) 1998 P\S\L Consulting Group Inc. All rights reserved.