Condition category
Mental and Behavioural Disorders
Date applied
Date assigned
Last edited
Prospectively registered
Overall trial status
Recruitment status
No longer recruiting
Publication status
Results overdue

Plain English Summary

Background and study aims
Autism Spectrum Disorder (ASD) is a common disorder that affects the way that a person communicates and relates to others. It is a spectrum condition the level of disability is spread across a wide range, from almost unnoticeable to completely debilitating. In general however, the difficulties sufferers experience tend to fall into social communication (speech and body language), social interaction (recognising and expressing emotions) and social imagination (being able to understand and predict other people’s behaviour). It has been found that at least 30% of adults with ASD experience depression (low mood). Cognitive Behaviour Therapy (CBT) is a type of talking therapy which works by changing the way a person thinks and behaves. It is the recommended treatment for mild-moderate anxiety and depression in the NHS and is usually 'low intensity' CBT. This means that it involves guided self-help with individual support from a Psychological Wellbeing Practitioner (PWP) or psycho-education (education offered to people to help empower them and deal with their condition) as part of a group. There is some evidence that CBT can be helpful for people with ASD and anxiety if adapted for their needs. However it is not known if CBT can also be adapted and be helpful for depression in this group. The NHS guided self-help materials for depression have not been developed for people with ASD who can have a different style of processing information. Furthermore, some NHS therapists know about the needs of people with ASD but some do not. Receiving information as part of a group may be difficult for people with a diagnosis of ASD and they may find the social aspect of the group stressful. In this study, the researchers are working to develop self-help materials for depression specifically for adults with ASD and to produce an accompanying therapist guide. The aim of this study is to find out if these materials are acceptable to patients and to find out whether a larger study looking at their effectiveness is feasible.

Who can participate?
Depressed adults who have been diagnosed with ASD.

What does the study involve?
Participants are randomly allocated to one of two groups. Those in the first group receive treatment as usual. This may involve no treatment, anti-depressant medical, referral to a specialist or therapy. Those in the second group take part in a guided programme of self-help CBT for depression. This involves nine individual sessions of adapted guided self-help with the support of a psychological therapist/coach who will receive training and supervision in working with people with ASD. At the start of the study and then again after 10, 16 and 24 weeks, participants in both groups have their depression levels measured. In addition, the number of participants who took part is recorded in order to see if a larger study would be feasible.

What are the possible benefits and risks of participating?
It is not known whether participants will benefit from taking part in this study. There is a risk that people with depression will not be receiving an effective treatment. Participants receiving Guided Self-Help will be monitored and if their depression is getting significantly worse and it seems they need more intensive help with their depression, then they will stop the Guided Self-Help and will be referred for a higher level of support.

Where is the study run from?
Autism services in Avon & Wiltshire Mental Health Partnership NHS Trust and Northumberland, Tyne and Wear NHS Trust (UK)

When is the study starting and how long is it expected to run for?
December 2015 to May 2018

Who is funding the study?
National Institute for Health Research, Health Technology Assessment Programme (UK)

Who is the main contact?
1. Dr Ailsa Russell (public)
2. Dr Kate Cooper (public)
3. Dr Stephen Barton (public)

Trial website

Contact information



Primary contact

Dr Ailsa Russell


Contact details

Department of Psychology
University of Bath
United Kingdom



Additional contact

Dr Kate Cooper


Contact details

Department of Psychology
University of Bath
United Kingdom



Additional contact

Dr Stephen Barton


Contact details

University of Newcastle
4th Floor
Ridley Building
United Kingdom

Additional identifiers

EudraCT number number

Protocol/serial number

Funder reference number 14/43/02

Study information

Scientific title

Adults with Autism and Depression, low intensity cognitive behavioural treatment compared to treatment as usual – a feasibility study



Study hypothesis

The aim of the study is to develop guided self-help materials for depression for adults with autism and to consider the feasibility of a randomised controlled trial.

Ethics approval

Wales REC 3, 15/04/2016, ref: 16/ WA/0077

Study design

Feasibility randomised controlled trial with nested qualitative evaluation

Primary study design


Secondary study design

Randomised controlled trial

Trial setting


Trial type


Patient information sheet

Not available in web format. Please use contact details to request a participant information sheet


Depression in Adults with Autism


Participants will be randomly allocated to Guided Self-Help or Treatment as Usual. Randomisation will be by means of an automated telephone service and will be stratified by study centre and minimised by depression severity and anti-depressant medication.

Guided Self-Help group: Participants will attend a 1 hour introductory session and then 8 individual sessions with a therapist coach lasting up to 45 minutes. They will be provided with session materials based on the principles of Behavioural Activation. The therapist coach will serve as a guide to work through the materials during the session and encourage between-session planned activities. There will be an accompanying therapist manual. The session materials will be adapted for adults with Autism. The intervention will be delivered over a maximum of 10 weeks. The therapist will be a ‘low intensity’ cognitive behaviour therapist or Psychological Wellbeing Practitioner (PWP) i.e. a therapist working at the low intensity step of the care pathway for depression who has knowledge of cognitive behavioural theory of psychological problems and training/experience in delivering manualised interventions. They will not ordinarily have the knowledge and training to develop individualised, formulation driven interventions for psychological problems.

Treatment as Usual group: Participants will be recommended referral to local psychological treatment services for depression via their General Practitioner. This may include:
1. No treatment
2. Signposting for self-referral to IAPT services
3. Autism clinician recommendation to the GP to make a referral to IAPT services
4. Clinic or GP referral to secondary care mental health services
5. Anti-depressant medication

Participants in both groups will attend follow-up at 10, 16 and 24 weeks post-randomisation.

Intervention type



Drug names

Primary outcome measure

Feasibility outcomes:
1. Proportion of adults with Autism consenting to the study is determined through recording the number of eligible participants who consent to participate
2. Proportion completing the baseline assessment and entering the randomised phase is determined through recording the number of consenting participants who complete the outcome measures at baseline
3. For those in the intervention group, the number of guided self-help sessions attended and the proportion completing 5 or more sessions is assessed through ongoing participant data collection
4. Proportion completing follow-up assessments is determined through recording the proportion of consenting participants who complete the outcome measures at 10 and 16 weeks post-randomisation

Primary clinical outcome:
Depression is measured using the Patient Health Questionnaire (PHQ-9), Beck Depression Inventory-II (BDI-II) and the Hamilton Rating Scale for Depression at baseline, 10, 16 and 24 weeks

Secondary outcome measures

1. Obsessive Compulsive symptoms are measured using the Obsessive Compulsive Inventory (OCI-R) at baseline, 10, 16 and 24 weeks
2. Levels of anxiety are measured using the General Anxiety Disorder Questionnaire (GAD-7) at baseline, 10, 16 and 24 weeks
3. Emotional experience will be measured using the Positive and Negative Affect Schedule (PANAS) at baseline, 10, 16 and 24 weeks
4. The impact of problems on everyday life will be measured using the Work and Social Adjustment Scale (WSAS) at baseline, 10, 16 and 24 weeks
5. Quality of Life is measured using the EQ-5D-L at baseline, 10, 16 and 24 weeks
6. Social function is measured using the SF-12 at baseline, 10, 16 and 24 weeks
7. Repetitive behaviours are measured using the Repetitive Behaviours Questionnaire (RBQ-2) at baseline, 10, 16 and 24 weeks
8. Rumination is measured using the Rumination Refection Questionnaire (RRQ) at baseline, 10, 16 and 24 weeks
9. Resource and Service Use is measured using a pilot Resource and Service Use questionnaire at baseline, 10, 16 and 24 weeks

Overall trial start date


Overall trial end date


Reason abandoned (if study stopped)


Participant inclusion criteria

1. Adults (aged 18 years and over)
2. Clinical diagnosis of an Autism Spectrum Disorder (ASD)
3. Current depressed mood

Participant type


Age group




Target number of participants


Total final enrolment


Participant exclusion criteria

1. Where Intellectual disability is known or suspected as the materials have not been developed for this group
2. Current risk of suicide such that a low intensity intervention would not be clinically appropriate
3. Psychosis
4. Current alcohol/substance dependence
5. Untreated epilepsy
6. Attendance at >6 sessions of a cognitive behavioural intervention (CBT) during the past 6 months
7. Non-English speaking

Recruitment start date


Recruitment end date



Countries of recruitment

United Kingdom

Trial participating centre

Bristol Adult Autism Service (BASS)
Avon & Wiltshire Mental Health Partnership NHS Trust Petherton Resource Centre
BS14 9BP
United Kingdom

Trial participating centre

Adult Autism Diagnostic Service
Northumberland, Tyne and Wear NHS Trust Keegan Court Grassbanks
NE10 8DX
United Kingdom

Sponsor information


Avon & Wiltshire Mental Health Partnership NHS Trust

Sponsor details

Research & Development Department
BS16 2EW
United Kingdom

Sponsor type

Hospital/treatment centre



Funder type


Funder name

Health Technology Assessment Programme

Alternative name(s)

NIHR Health Technology Assessment Programme, HTA

Funding Body Type

government organisation

Funding Body Subtype

National government


United Kingdom

Results and Publications

Publication and dissemination plan

Publication in a high impact, peer-reviewed journal.

IPD Sharing plan:
The datasets generated during and/or analysed during the current study are not expected to be made available due to not gaining ethical approval or consent from participants to share such data.

Intention to publish date


Participant level data

Not expected to be available

Basic results (scientific)

Publication list

2019 results in: (added 23/12/2019)

Publication citations

Additional files

Editorial Notes

23/12/2019: The following changes have been made: 1. Publication reference added. 2. The total final enrolment number has been added from the reference. 23/05/2019: IPD sharing statement added. 21/05/2019: The intention to publish date was changed from 31/12/2018 to 01/09/2019. 17/05/2019: Internal review.