Adverse reactions to methylphenidate treatment for attention-deficit/hyperactivity disorder: structure and associations with clinical characteristics and symptom control.
Adverse reactions to methylphenidate treatment for attention-deficit/hyperactivity disorder: structure and associations with clinical characteristics and symptom control.
Background: methylphenidate (MPH)-related adverse events are well characterized. Their predictors and their relationship with therapeutic effects are less well understood. Here we examine these issues in relation to two long-acting formulations.
Method: comparison of Methylphenidates in the Analog Classroom Setting (COMACS) was made in a large (n=184) placebo-controlled trial comparing Equasym XL®/Metadate CD®, Concerta®, and placebo (PLA) using a Laboratory School protocol. Therapeutic effects were measured using direct observation, scores on a simple math productivity task and parent ratings. Parents also completed the Barkley Stimulant Side Effect Rating Scale (BSSERS).
Results: the BSSERS had six factors: Emotionality, sleep/appetite, disengaged, dizzy, uninterested, and aches. Treatment effects were seen only for emotionality (which improved) and sleep and appetite (which worsened). Adverse events were not predictable from personal and clinical characteristics of patients. Sleep/appetite adverse events were not associated with therapeutic effects. Improvements in attention-deficit/hyperactivity disorder (ADHD) and emotionality were correlated.
Discussion: the results support a narrow conceptualization of MPH adverse events with problems restricted to appetite and sleep. These effects were not predictable on the basis of available information and may be due to an underlying mechanism rather distinct from those determining therapeutic effects
683-690
Sonuga-Barke, Edmund J.S.
bc80bf95-6cf9-4c76-a09d-eaaf0b717635
Coghill, David
deea8957-fdfc-488a-a3bb-fb9b536c7172
Wigal, Timothy
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DeBacker, Marc
3c928d6f-57c7-49b4-8683-0d415a4ee4d5
Swanson, James
0a7d4e86-aa6d-466d-a23c-6320054471ef
December 2009
Sonuga-Barke, Edmund J.S.
bc80bf95-6cf9-4c76-a09d-eaaf0b717635
Coghill, David
deea8957-fdfc-488a-a3bb-fb9b536c7172
Wigal, Timothy
8491a5cf-c701-48c7-823a-8fb639747225
DeBacker, Marc
3c928d6f-57c7-49b4-8683-0d415a4ee4d5
Swanson, James
0a7d4e86-aa6d-466d-a23c-6320054471ef
Sonuga-Barke, Edmund J.S., Coghill, David, Wigal, Timothy, DeBacker, Marc and Swanson, James
(2009)
Adverse reactions to methylphenidate treatment for attention-deficit/hyperactivity disorder: structure and associations with clinical characteristics and symptom control.
Journal of Child and Adolescent Psychopharmacology, 19 (6), .
(doi:10.1089/cap.2009.0024).
Abstract
Background: methylphenidate (MPH)-related adverse events are well characterized. Their predictors and their relationship with therapeutic effects are less well understood. Here we examine these issues in relation to two long-acting formulations.
Method: comparison of Methylphenidates in the Analog Classroom Setting (COMACS) was made in a large (n=184) placebo-controlled trial comparing Equasym XL®/Metadate CD®, Concerta®, and placebo (PLA) using a Laboratory School protocol. Therapeutic effects were measured using direct observation, scores on a simple math productivity task and parent ratings. Parents also completed the Barkley Stimulant Side Effect Rating Scale (BSSERS).
Results: the BSSERS had six factors: Emotionality, sleep/appetite, disengaged, dizzy, uninterested, and aches. Treatment effects were seen only for emotionality (which improved) and sleep and appetite (which worsened). Adverse events were not predictable from personal and clinical characteristics of patients. Sleep/appetite adverse events were not associated with therapeutic effects. Improvements in attention-deficit/hyperactivity disorder (ADHD) and emotionality were correlated.
Discussion: the results support a narrow conceptualization of MPH adverse events with problems restricted to appetite and sleep. These effects were not predictable on the basis of available information and may be due to an underlying mechanism rather distinct from those determining therapeutic effects
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Published date: December 2009
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Local EPrints ID: 71863
URI: http://eprints.soton.ac.uk/id/eprint/71863
ISSN: 1044-5463
PURE UUID: 0fd3e2b9-6121-4ae3-ad3f-b13b6030a68d
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Date deposited: 07 Jan 2010
Last modified: 13 Mar 2024 20:48
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Author:
Edmund J.S. Sonuga-Barke
Author:
David Coghill
Author:
Timothy Wigal
Author:
Marc DeBacker
Author:
James Swanson
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