Protocol for a feasibility study and randomised pilot trial of a low intensity psychological intervention for depression in adults with autism: the Autism Depression Trial (ADEPT)

Ailsa Russell, Kate Cooper, Stephen Barton, Ian Ensum, Daisy Gaunt, Jeremy Horwood, Barry Ingham, David Kessler, Chris Metcalfe, Jeremy R. Parr, Dheeraj Rai, Nicola Wiles

Research output: Contribution to journalArticle (Academic Journal)peer-review

10 Citations (Scopus)
226 Downloads (Pure)

Abstract

INTRODUCTION: High rates of co-occurring depression are reported in autism spectrum disorder (ASD), a neurodevelopmental condition characterised by social communication impairments and repetitive behaviours. Cognitive-behavioural interventions adapted for ASD have been effective for anxiety problems. There have been evaluation studies of group cognitive-behavioural therapy for co-occurring depression, but no randomised trials investigating low-intensity psychological interventions as recommended in clinical guidelines for mild-moderate depression.

METHODS AND ANALYSIS: A feasibility study comprising a randomised controlled trial (RCT) and nested qualitative evaluation is under way as preparation for a definitive RCT. Participants (n=70) will be randomised to Guided Self-Help: a low-intensity psychological intervention based on behavioural activation adapted for ASD or treatment as usual. Outcomes including depression symptoms, anxiety, social function and service use will be measured at 10, 16 and 24 weeks postrandomisation and will be blind to group allocation for measures that are not self-administered. The analysis will aim to establish the rates of recruitment and retention for a larger-scale RCT as well as the most appropriate measure of depression to serve as primary outcome. The qualitative study will purposively sample up to 24 participants from each treatment group to consider the acceptability and feasibility of the intervention and the trial design.

ETHICS AND DISSEMINATION: Ethical approval has been received from WALES REC 3 (IRAS project ID: 191558) and the Health Research Authority with R&D approval from Avon and Wiltshire Mental Health Partnership and Northumberland, Tyne and Wear Foundation NHS Trusts. To our knowledge, this is the first study of a low-intensity intervention for depression in adults with autism. The results will inform the design of a definitive RCT. Dissemination will include peer-reviewed journal publications reporting the quantitative and qualitative research findings of the study and presentations at national and international conferences.

TRIAL REGISTRATION NUMBER: ISRCTN54650760; Pre-results.

Original languageEnglish
Article numbere019545
Number of pages9
JournalBMJ Open
Volume7
Issue number12
DOIs
Publication statusPublished - 3 Dec 2017

Structured keywords

  • BTC (Bristol Trials Centre)
  • BRTC
  • Centre for Surgical Research

Keywords

  • Autism
  • Depression
  • Cognitive Behaviour Therapy
  • Low intensity intervention
  • Randomised Controlled Trial

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