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Aripiprazole in the Treatment of Irritability in Children and Adolescents with Autism Spectrum Disorder in Japan: A Randomized, Double-blind, Placebo-controlled Study.

Research paper by Hironobu H Ichikawa, Katsunaka K Mikami, Takashi T Okada, Yushiro Y Yamashita, Yuko Y Ishizaki, Akemi A Tomoda, Hiroaki H Ono, Chiharu C Usuki, Yoshihiro Y Tadori

Indexed on: 23 Dec '16Published on: 23 Dec '16Published in: Child Psychiatry & Human Development



Abstract

We evaluated the efficacy and safety of aripiprazole in the treatment of irritability in children and adolescents (6-17 years) with autism spectrum disorder (ASD) in a randomized, double-blind, placebo-controlled 8-week study in Japan. Patients received flexibly dosed aripiprazole (1-15 mg/day) or placebo. Ninety-two patients were randomized to placebo (n = 45) or aripiprazole (n = 47). Aripiprazole produced a significant improvement in the mean parent/caregiver-rated Aberrant Behavior Checklist Japanese Version irritability subscale score relative to placebo from week 3 through week 8. Administration of aripiprazole provided significantly greater improvement in the mean clinician-rated Clinical Global Impression-Improvement scores than placebo from week 2 through week 8. All patients randomized to aripiprazole completed the study, and no serious adverse events were reported. Three patients in placebo group discontinued. Aripiprazole was effective and generally safe and well-tolerated in the treatment of irritability associated with ASD in Japanese children and adolescents.

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