Background Children with autism spectrum disorders often present with comorbid anxiety disorders that cause significant functional impairment. This study tested a modular cognitive behavioral therapy (CBT) program for children with this profile. A standard CBT program was augmented with multiple treatment components designed to accommodate or remediate the social and adaptive skill deficits of children with ASD that could pose barriers to anxiety reduction. Method Forty children (7–11 years old) were randomly assigned to 16 sessions of CBT or a 3-month waitlist (36 completed treatment or waitlist). Therapists worked with individual families. The CBT model emphasized behavioral experimentation, parent-training, and school consultation. Independent evaluators blind to treatment condition conducted structured diagnostic interviews and parents and children completed anxiety symptom checklists at baseline and posttreatment/postwaitlist. Results In intent-to-treat analyses, 78.5% of the CBT group met Clinical Global Impressions-Improvement scale criteria for positive treatment response at posttreatment, as compared to only 8.7% of the waitlist group. CBT also out-performed the waitlist on diagnostic outcomes and parent reports of child anxiety, but not children's self-reports. Treatment gains were maintained at 3-month follow-up. Conclusions The CBT manual employed in this study is one of the first adaptations of an evidence-based treatment for children with autism spectrum disorders. Remission of anxiety disorders appears to be an achievable goal among high-functioning children with autism.

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This pilot study tested the effect of cognitive behavioral therapy (CBT) on parent-reported autism symptoms. Nineteen children with autism spectrum disorders and an anxiety disorder (7-11 years old) were randomly assigned to 16 sessions of CBT or a waitlist condition. The CBT program emphasized in vivo exposure supported by parent training and school consultation to promote social communication and emotion regulation skills. Parents completed a standardized autism symptom checklist at baseline and posttreatment/postwaitlist and 3-month follow-up assessments. CBT outperformed the waitlist condition at posttreatment/ postwaitlist on total parent-reported autism symptoms (Cohen's d effect size = .77). Treatment gains were maintained at 3-month follow-up. Further investigation of this intervention modality with larger samples and broader outcome measures appears to be indicated.

CBT is a promising treatment for children with autism spectrum disorders (ASD) and focuses, in part, on children’s independence and self-help skills. In a trial of CBT for anxiety in ASD (Wood et al. in J Child Psychol Psychiatry 50:224–234, 2009), children’s daily living skills and related parental intrusiveness were assessed. Forty children with ASD (7–11 years) and their primary caregiver were randomly assigned to an immediate treatment (IT; n = 17) or 3-month waitlist (WL; n = 23) condition. In comparison to WL, IT parents reported increases in children’s total and personal daily living skills, and reduced involvement in their children’s private daily routines. Reductions correlated with reduced anxiety severity. These results provide preliminary evidence that CBT may yield increased independence and daily living skills among children with ASD.

Because anxiety and other concurrent psychological problems are common among children with high-functioning autism and Asperger syndrome, research initiatives have been devoted to the development of efficacious treatments to address the multifaceted needs of youth with this presentation. Emerging research indicates that when carefully adapted to accommodate for the unique needs of children with autism spectrum disorders (ASD), cognitive-behavioural therapy (CBT) may be a viable treatment modality. Because inherent features of ASD may compromise the efficacy of traditional CBT, our preliminary work suggests that it may be important to gear intervention efforts towards directly addressing core autism symptoms to promote optimal treatment response. This article describes an evidencebased CBT treatment manual modified and expanded to address core ASD features above and beyond anxiety symptomatology. A case example of a 10-year-old boy with Asperger syndrome is presented with supporting data to illustrate the treatment modifications and their rationale. The positive treatment response attained in this case suggests that an enhanced variant of a standard CBT programme may be an efficacious treatment approach for children with ASD and concurrent anxiety.