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Online remote behavioural intervention for tics in 9- to 17-year-olds : the ORBIT RCT with embedded process and economic evaluation

Hollis, Chris ; Hall, Charlotte L ; Khan, Kareem ; Le Novere, Marie ; Marston, Louise ; Jones, Rebecca ; Hunter, Rachael ; Brown, Beverley J ; Sanderson, Charlotte and Andrén, Per LU , et al. (2023) In Health Technology Assessment 27(18). p.1-120
Abstract

BACKGROUND: Behavioural therapy for tics is difficult to access, and little is known about its effectiveness when delivered online.

OBJECTIVE: To investigate the clinical and cost-effectiveness of an online-delivered, therapist- and parent-supported therapy for young people with tic disorders.

DESIGN: Single-blind, parallel-group, randomised controlled trial, with 3-month (primary end point) and 6-month post-randomisation follow-up. Participants were individually randomised (1 : 1), using on online system, with block randomisations, stratified by site. Naturalistic follow-up was conducted at 12 and 18 months post-randomisation when participants were free to access non-trial interventions. A subset of participants... (More)

BACKGROUND: Behavioural therapy for tics is difficult to access, and little is known about its effectiveness when delivered online.

OBJECTIVE: To investigate the clinical and cost-effectiveness of an online-delivered, therapist- and parent-supported therapy for young people with tic disorders.

DESIGN: Single-blind, parallel-group, randomised controlled trial, with 3-month (primary end point) and 6-month post-randomisation follow-up. Participants were individually randomised (1 : 1), using on online system, with block randomisations, stratified by site. Naturalistic follow-up was conducted at 12 and 18 months post-randomisation when participants were free to access non-trial interventions. A subset of participants participated in a process evaluation.

SETTING: Two hospitals (London and Nottingham) in England also accepting referrals from patient identification centres and online self-referrals.

PARTICIPANTS: Children aged 9-17 years (1) with Tourette syndrome or chronic tic disorder, (2) with a Yale Global Tic Severity Scale-total tic severity score of 15 or more (or > 10 with only motor or vocal tics) and (3) having not received behavioural therapy for tics in the past 12 months or started/stopped medication for tics within the past 2 months.

INTERVENTIONS: Either 10 weeks of online, remotely delivered, therapist-supported exposure and response prevention therapy (intervention group) or online psychoeducation (control).

OUTCOME: Primary outcome: Yale Global Tic Severity Scale-total tic severity score 3 months post-randomisation; analysis done in all randomised patients for whom data were available. Secondary outcomes included low mood, anxiety, treatment satisfaction and health resource use. Quality-adjusted life-years are derived from parent-completed quality-of-life measures. All trial staff, statisticians and the chief investigator were masked to group allocation.

RESULTS: Two hundred and twenty-four participants were randomised to the intervention (n = 112) or control (n = 112) group. Participants were mostly male (n = 177; 79%), with a mean age of 12 years. At 3 months the estimated mean difference in Yale Global Tic Severity Scale-total tic severity score between the groups adjusted for baseline and site was -2.29 points (95% confidence interval -3.86 to -0.71) in favour of therapy (effect size -0.31, 95% confidence interval -0.52 to -0.10). This effect was sustained throughout to the final follow-up at 18 months (-2.01 points, 95% confidence interval -3.86 to -0.15; effect size -0.27, 95% confidence interval -0.52 to -0.02). At 18 months the mean incremental cost per participant of the intervention compared to the control was £662 (95% confidence interval -£59 to £1384), with a mean incremental quality-adjusted life-year of 0.040 (95% confidence interval -0.004 to 0.083) per participant. The mean incremental cost per quality-adjusted life-year gained was £16,708. The intervention was acceptable and delivered with high fidelity. Parental engagement predicted child engagement and more positive clinical outcomes.

HARMS: Two serious, unrelated adverse events occurred in the control group.

LIMITATIONS: We cannot separate the effects of digital online delivery and the therapy itself. The sample was predominately white and British, limiting generalisability. The design did not compare to face-to-face services.

CONCLUSION: Online, therapist-supported behavioural therapy for young people with tic disorders is clinically and cost-effective in reducing tics, with durable benefits extending up to 18 months.

FUTURE WORK: Future work should compare online to face-to-face therapy and explore how to embed the intervention in clinical practice.

TRIAL REGISTRATION: This trial is registered as ISRCTN70758207; ClinicalTrials.gov (NCT03483493). The trial is now complete.

FUNDING: This project was funded by the National Institute for Health and Care Research (NIHR) Health and Technology Assessment programme (project number 16/19/02) and will be published in full in Health and Technology Assessment; Vol. 27, No. 18. See the NIHR Journals Library website for further project information.

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Please use this url to cite or link to this publication:
@article{0dd1cb0a-916d-449e-be7a-3f69727e3658,
  abstract     = {{<p>BACKGROUND: Behavioural therapy for tics is difficult to access, and little is known about its effectiveness when delivered online.</p><p>OBJECTIVE: To investigate the clinical and cost-effectiveness of an online-delivered, therapist- and parent-supported therapy for young people with tic disorders.</p><p>DESIGN: Single-blind, parallel-group, randomised controlled trial, with 3-month (primary end point) and 6-month post-randomisation follow-up. Participants were individually randomised (1 : 1), using on online system, with block randomisations, stratified by site. Naturalistic follow-up was conducted at 12 and 18 months post-randomisation when participants were free to access non-trial interventions. A subset of participants participated in a process evaluation.</p><p>SETTING: Two hospitals (London and Nottingham) in England also accepting referrals from patient identification centres and online self-referrals.</p><p>PARTICIPANTS: Children aged 9-17 years (1) with Tourette syndrome or chronic tic disorder, (2) with a Yale Global Tic Severity Scale-total tic severity score of 15 or more (or &gt; 10 with only motor or vocal tics) and (3) having not received behavioural therapy for tics in the past 12 months or started/stopped medication for tics within the past 2 months.</p><p>INTERVENTIONS: Either 10 weeks of online, remotely delivered, therapist-supported exposure and response prevention therapy (intervention group) or online psychoeducation (control).</p><p>OUTCOME: Primary outcome: Yale Global Tic Severity Scale-total tic severity score 3 months post-randomisation; analysis done in all randomised patients for whom data were available. Secondary outcomes included low mood, anxiety, treatment satisfaction and health resource use. Quality-adjusted life-years are derived from parent-completed quality-of-life measures. All trial staff, statisticians and the chief investigator were masked to group allocation.</p><p>RESULTS: Two hundred and twenty-four participants were randomised to the intervention (n = 112) or control (n = 112) group. Participants were mostly male (n = 177; 79%), with a mean age of 12 years. At 3 months the estimated mean difference in Yale Global Tic Severity Scale-total tic severity score between the groups adjusted for baseline and site was -2.29 points (95% confidence interval -3.86 to -0.71) in favour of therapy (effect size -0.31, 95% confidence interval -0.52 to -0.10). This effect was sustained throughout to the final follow-up at 18 months (-2.01 points, 95% confidence interval -3.86 to -0.15; effect size -0.27, 95% confidence interval -0.52 to -0.02). At 18 months the mean incremental cost per participant of the intervention compared to the control was £662 (95% confidence interval -£59 to £1384), with a mean incremental quality-adjusted life-year of 0.040 (95% confidence interval -0.004 to 0.083) per participant. The mean incremental cost per quality-adjusted life-year gained was £16,708. The intervention was acceptable and delivered with high fidelity. Parental engagement predicted child engagement and more positive clinical outcomes.</p><p>HARMS: Two serious, unrelated adverse events occurred in the control group.</p><p>LIMITATIONS: We cannot separate the effects of digital online delivery and the therapy itself. The sample was predominately white and British, limiting generalisability. The design did not compare to face-to-face services.</p><p>CONCLUSION: Online, therapist-supported behavioural therapy for young people with tic disorders is clinically and cost-effective in reducing tics, with durable benefits extending up to 18 months.</p><p>FUTURE WORK: Future work should compare online to face-to-face therapy and explore how to embed the intervention in clinical practice.</p><p>TRIAL REGISTRATION: This trial is registered as ISRCTN70758207; ClinicalTrials.gov (NCT03483493). The trial is now complete.</p><p>FUNDING: This project was funded by the National Institute for Health and Care Research (NIHR) Health and Technology Assessment programme (project number 16/19/02) and will be published in full in Health and Technology Assessment; Vol. 27, No. 18. See the NIHR Journals Library website for further project information.</p>}},
  author       = {{Hollis, Chris and Hall, Charlotte L and Khan, Kareem and Le Novere, Marie and Marston, Louise and Jones, Rebecca and Hunter, Rachael and Brown, Beverley J and Sanderson, Charlotte and Andrén, Per and Bennett, Sophie D and Chamberlain, Liam R and Davies, E Bethan and Evans, Amber and Kouzoupi, Natalia and McKenzie, Caitlin and Heyman, Isobel and Kilgariff, Joseph and Glazebrook, Cristine and Mataix-Cols, David and Serlachius, Eva and Murray, Elizabeth and Murphy, Tara}},
  issn         = {{1366-5278}},
  keywords     = {{Child; Humans; Male; Adolescent; Female; Tics; Cost-Benefit Analysis; Single-Blind Method; Tic Disorders; Behavior Therapy; Quality of Life}},
  language     = {{eng}},
  number       = {{18}},
  pages        = {{1--120}},
  publisher    = {{National Co-ordinating Centre for HTA}},
  series       = {{Health Technology Assessment}},
  title        = {{Online remote behavioural intervention for tics in 9- to 17-year-olds : the ORBIT RCT with embedded process and economic evaluation}},
  url          = {{http://dx.doi.org/10.3310/CPMS3211}},
  doi          = {{10.3310/CPMS3211}},
  volume       = {{27}},
  year         = {{2023}},
}