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Martin, A. et al.

Martin, Scahill, Anderson, Aman, Arnold, McCracken, McDougle, Tierney, Chuang, Vitiello,

Weight and leptin changes among risperidone-treated youths with autism: 6-month prospective data.

OBJECTIVE: The authors examined the developmental impact and temporal characteristics of risperidone-associated weight change. METHOD: Weight change was measured for 63 children and adolescents with autism treated with risperidone for 6 months. Change in serum leptin levels after 2 months was examined as a predictor of final weight gain in mixed regression models that controlled for site, gender, age, and risperidone dose. RESULTS: Age- and gender-standardized weight increased after 6 months of treatment (gross: mean=5.6 kg [SD=3.9]; standardized: mean=0.6 z [SD=0.5]) and was positively correlated with weight gained after 1 month. Change in leptin levels after 2 months of treatment (mean=-0.3 ng/ml, SD=6.2) (N=48) did not predict final weight gain. CONCLUSIONS: Chronic risperidone exposure in children with autism causes weight gain in excess of developmentally expected norms that follows a curvilinear trajectory and decelerates over time. Serum leptin change does not reliably predict risperidone-associated weight gain.[1]

References

Weight and leptin changes among risperidone-treated youths with autism: 6-month prospective data. Martin, A., Scahill, L., Anderson, G.M., Aman, M., Arnold, L.E., McCracken, J., McDougle, C.J., Tierney, E., Chuang, S., Vitiello, B. The American journal of psychiatry. (2004) [Pubmed]

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