Hollis, C;
Hall, CL;
Jones, R;
Marston, L;
Le Novere, M;
Hunter, RM;
Brown, B;
... Murray, E; + view all
(2021)
Therapist-Supported Online Remote Behavioural Intervention for Tics (ORBIT) in Children and Adolescents: A Single-Blind Randomised Controlled Trial.
SSRN: Amsterdam, Netherlands.
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Abstract
Background: Behaviour therapy is an effective treatment in children and adolescents with tic disorders but is rarely available. Online delivery could widen access to therapy. We evaluated the efficacy of internet-delivered, therapist-supported and parent-assisted Exposure and Response Prevention (ERP) for tics. / Methods: Multi-centre, parallel group, single-blind, randomised controlled trial. Eligible participants were aged 9-17 years with Tourette syndrome/chronic tic disorder, who had not received behaviour therapy for tics within 12 months, and had a Yale Global Tic Severity Scale (YGTSS) Total Tic Severity Score (TTSS) of >15, or >10 if motor or vocal tics only. Participants were recruited via 16 patient identification centres, two study sites, or online self-referral, and were randomised (1:1) by blinded outcome-assessors to receive either 10 weeks of ERP or psychoeducation (active control). The primary outcome was YGTSS-TTSS at 3 months’ post-randomisation, analysis was by intention-to-treat. The mean cost per patient for the intervention and health care costs were calculated. Registrations are ISRCTN (ISRCTN70758207) and ClinicalTrials.gov (NCT03483493). / Findings: Between 8 th May 2018 and 30 th September 2019, 224 participants were enrolled; 112 to ERP and 112 to psychoeducation. The ERP intervention reduced YGTSS-TTSS by 2 . 29 points (95% CI: ‑3 . 86 to -0 . 71) compared to the psychoeducation group at 3 months, an effect that increased by 6 months post-randomisation (-2 . 64, 95% CI: -4 . 56 to -0 . 73). The average therapist time spent supporting the intervention was 2 . 5 hours. The additional cost per participant of the ERP intervention compared to psychoeducation was £159 (95% CI -£53 to £370). There were two unrelated serious adverse events, both in the psychoeducation group. / Interpretation: Online-delivered, therapist-supported ERP therapy is clinically effective at reducing tics, with minimal therapist contact time. Online delivery could improve access to evidence-based treatment for tics in children and adolescents.
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