Treating child anxiety using family-based internet delivered cognitive behavior therapy with brief therapist guidance: a randomized controlled trial

Online treatment delivery has the potential to increase access to evidence-based mental health care for children with anxiety disorders. Using a randomized controlled trial design, we evaluated the efficacy of Cool Kids Online, a family-based and therapist supported internet-delivered cognitive behavioral treatment (CBT) designed to target anxiety disorders in children. Ninety-five children aged 7–12 years with a DSM-5 anxiety disorder were randomly allocated to Cool Kids Online or a waitlist control. Children were assessed at baseline, week 11, and 6-months following treatment. Children in waitlist received treatment after week 11 and also completed assessments immediately and six months after treatment, allowing treatment maintenance to be evaluated for all children. Compared to waitlist, Cool Kids Online led to significantly greater remission of anxiety disorders (primary and all anxiety diagnoses) and greater reduction of caregiver-reported anxiety symptoms and interference at week 11. Child-reported anxiety symptoms and interference and child- and caregiver-reported depressive or externalizing symptoms did not differ significantly between conditions. Medium to large within-treatment effects were observed for all children from pre to post treatment with post treatment effects maintained until follow-up. Overall, the findings provide support for the efficacy of the program in treating anxiety. Cool Kids Online compared to waitlist for the remission of anxiety disorders in clinically anxious children; anzctr.org.au; ACTRN12615000947505.