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Randomized Controlled Trial of Atomoxetine for Cognitive Dysfunction in Early Huntington Disease
Journal article   Open access   Peer reviewed

Randomized Controlled Trial of Atomoxetine for Cognitive Dysfunction in Early Huntington Disease

Leigh J Beglinger, Williams H Adams, Henry Paulson, Jess G Fiedorowicz, Douglas R Langbehn, Kevin Duff, Anne Leserman and Jane S Paulsen
Journal of clinical psychopharmacology, Vol.29(5), pp.484-487
10/2009
DOI: 10.1097/JCP.0b013e3181b2ac0a
PMCID: PMC3806326
PMID: 19745649
url
https://www.ncbi.nlm.nih.gov/pmc/articles/3806326View
Open Access

Abstract

Background: Cognitive symptoms are associated with functional disability in Huntington disease; yet, few controlled trials have examined cognitive treatments that could improve patient independence and quality of life. Atomoxetine is a norepinephrine reuptake inhibitor approved for treatment of attention-deficit/hyperactivity disorder. Methods: Twenty participants with mild Huntington disease who complained of inattention were randomized to receive atomoxetine (80 mg/d) or placebo in a 10-week double-blind crossover study. Primary outcome measures were self-reported attention and attention and executive neuropsychological composite scores. Secondary outcomes were psychiatric and motor symptom scores. Results: The rate of reported adverse effects while on atomoxetine was 56% (vs 35% on placebo), which most commonly included dry mouth (39%), loss of appetite (22%), insomnia (22%), and dizziness (17%). There were no serious adverse events related to atomoxetine. There were statistically significant, although mild, increases in heart rate and diastolic blood pressure on atomoxetine, consistent with other studies and not requiring medical referral. There were no significant improvements while on atomoxetine compared with placebo on primary outcomes. However, there was evidence of significant placebo effects on self-reported attention and psychiatric functions. There were no group differences on the Unified Huntington's Disease Rating total motor score. Conclusions: Atomoxetine demonstrated no advantages over placebo for primary or secondary outcomes. Although atomoxetine was not effective at improving attention at this dose, its safety and tolerability were similar to other studies.
Clinical Trials neuropsychological assessment Huntington disease randomized controlled trial

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