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

Plain English Summary

Background and study aims
Depression is a mental health condition where a person feels persistently sad and low in mood for two weeks or more. It affects people in different ways. Sufferers can feel hopeless, anxious and lose interest in doing things they used to enjoy. It can also lead to problems with sleeping, feeling constantly tired, a loss of appetite and a low sex drive. In the most extreme cases, it can result in a person harming themselves or attempting to take their own life (suicide). Depression in young people is common and can result in poor academic achievement and feeling suicidal. Behavioural activation (BA) therapy is a treatment for depression. When people are depressed they tend to avoid others and isolate themselves which often serves to make them feel worse. BA works by encouraging people to do activities that are known to improve mood. Recent research has suggested that BA therapy may be useful as a treatment for depression in young people but, to date, there have been no published studies showing this in the UK. Here, we want to test if it is possible to use BA therapy to treat young people attending UK Child and Adolescent Mental Health Services (CAMHS). We also want to know if such a treatment would be acceptable to this age group.

Who can participate?
Young people, aged 12 to 17 years, with a diagnosis of major depressive disorder and attending UK CAMHS.

What does the study involve?
Participants are randomly allocated into one of two groups. Those in group 1 receive 8 weeks of BA therapy. Those in group 2 receive their usual treatment for depression. A series of questionnaires that explore each participants mood and feelings are filled in by them at the beginning of the study and then 3 months later. Those participants in the BA therapy group, and the clinicians giving the treatment, are also offered an interview to discuss their feelings and experiences of the therapy. Participants are asked to fill in another series of questionnaires over the phone six months after they started the study.

What are the possible benefits and risks of participating?
There may be risks and burdens to taking part; the treatment may not be as good as the usual treatment, harm may be caused to the participants and the participants will be asked to attend interviews that they would not normally be asked to attend. These risks are countered by the opportunity for young people to access a previously unavailable treatment, to receive an more in-depth assessment and longer follow-up than normal. In addition, Child and Adolescent Mental Health Service capacity may be improved by the use of a treatment that is suitable for less experienced staff to deliver.

Where is the study run from?
This study is being run by Durham University (UK) and takes place in CAMH sites in the UK.

When is the study starting and how long is it expected to run for?
March 2015 to September 2016

Who is funding the study?
Tees, Esk and Wear Valleys NHS Foundation Trust (UK)

Who is the main contact?
Miss Charlotte Kitchen

Trial website

Contact information



Primary contact

Miss Charlotte Kitchen


Contact details

Wolfson Building
Durham University Queens Campus
University Boulevard
TS17 6BH
United Kingdom

Additional identifiers

EudraCT number number

Protocol/serial number


Study information

Scientific title

The Feasibility and Acceptability of a Behavioural Activation intervention for young people with depression in Child and Adolescent Mental Health Services: a Randomised Controlled Trial


The BUDDY Study

Study hypothesis

To assess the feasibility and acceptability of behavioural activation treatment for depression for young people in a Child and Adolescent Mental Health Service setting. This information will be used to inform the methods and procedures for a definitive randomised controlled trial in the future.

Ethics approval

School of Medicine, Pharmacy and Health Ethics Sub-Committee at Durham University, 01/12/2014, ref. ESC2/2014/14

Study design

A single-centre, parallel group randomised controlled trial with a nested qualitative component

Primary study design


Secondary study design

Randomised parallel trial

Trial setting


Trial type


Patient information sheet

Not available in web format, please use the contact details to request a patient information sheet


Major Depressive Disorder


Participants are randomly allocated to one of two groups. Behavioural activation therapy is the active arm and treatment as usual is the control arm. Individual randomisation was used via remote telephone randomisation. The randomisation list is created by a statistician who used blocked randomisation (with stratification according to Tier of care and depression severity). The assessor was not involved in the randomisation process.

In the behavioural activation (BA) arm participants receive eight sessions of a brief BA treatment following a structured treatment manual. In addition, participants receive any other non-psychological treatment deemed necessary by their clinician.

In the treatment as usual (TAU) arm participants receiveany treatment deemed necessary by their clinician. Details of the treatment provided were obtained from the Trust’s patient electronic records system.

The total duration of treatment is recorded but not restricted (so varied between participants).

Participants are followed up at three and six months (and a selection of those attend a qualitative interview which may have occurred during their three month follow-up or at a later date if their treatment had not been completed by that stage).

Intervention type



Drug names

Primary outcome measure

The feasibility and acceptability of the study will be assessed by quantifying the flow of patients (in terms of eligibility, recruitment, adherence and attrition rates).

Secondary outcome measures

Current outcome measures as of 20/10/2017:
1. Assessor-rated depression status (DSM major depressive disorder or not) using the K-SADS-PL (structured diagnostic interview in person with participant and parent/carer [in some cases]) at baseline and three month follow-up
2. Young person self-report depression severity using the MFQ-C (validated questionnaire) at baseline, three and six month follow-up (baseline and three month follow-up were in person and six month over the telephone)
3. Parental report of their young person’s depression severity using the MFQ-P (validated questionnaire for parents/carers of some participants) at baseline, three and six month follow-up (baseline and three month follow-up were in person and six month over the telephone)
4. Self-reported self-esteem using the RSE (validated questionnaire) at baseline, three and six month follow-up (baseline and three month follow-up in person and six month over the telephone).
Assessor-rated level of functioning using the CGAS (part of the K-SADS) as above at baseline and three-month follow-up
5. Self-reported activation using the BADS (questionnaire not validated in young people) used for descriptive purposes at baseline, three and six month follow-up (baseline and three month follow-up were in person and six month over the telephone).
6. Self-reported satisfaction with study and intervention using the end of study survey (designed specifically for this study for young people and parents/carers [in some cases]) at three month follow-up.

Previous outcome measures:
1. The feasibility and acceptability of the Behavioural Activation intervention will be evaluated via survey and qualitative interview data gathered from participants and clinicians on receiving and implementing the intervention.
2. The feasibility and acceptability of the study design and procedures will be evaluated via survey data from participants and parents/carers (in both arms of the study).
3. To obtain stable estimates of the variance in the outcome measures; score on Mood and Feelings questionnaire, the Behavioral Activation for Depression Scale Short Form and Rosenberg Self-esteem measure will be used.
4. To describe whether participants still meet the Kiddie-SADS-Present and Lifetime version DSM-IV diagnosis of depression (or are in remission) and also to comment upon the use of Routine Outcome Measures in treatment sessions. This information will be used to explore the differences between groups.

Overall trial start date


Overall trial end date


Reason abandoned (if study stopped)


Participant inclusion criteria

1. Aged between 12 and 17 years old
2. Young person (if under 16) to give valid informed assent AND parent/carer valid informed consent OR young person [if aged 16 or over] to give valid informed consent
3. If on antidepressants, a stable dose must have been established for 6 weeks
4. Primary diagnosis of major depressive disorder according to the Kiddie-SADS-Present and Lifetime version

Participant type


Age group




Target number of participants


Participant exclusion criteria

1. Presence of significant active substance abuse/dependence
2. Currently receiving a psychological therapy
3. Reading age <10 years for written English

Recruitment start date


Recruitment end date



Countries of recruitment

United Kingdom

Trial participating centre

Tees, Esk and Wear Valleys NHS Foundation Trust
United Kingdom

Sponsor information


Durham University

Sponsor details

Wolfson Building
Durham University Queens Campus
University Boulevard
TS17 6BH
United Kingdom
+44 (0)1913340804

Sponsor type




Funder type

Hospital/treatment centre

Funder name

Tees, Esk and Wear Valleys NHS Foundation Trust

Alternative name(s)

Funding Body Type

Funding Body Subtype


Results and Publications

Publication and dissemination plan

It is intended that two papers will be submitted to peer-reviewed academic journals from this trial. A short report detailing the recruitment and participant flow within the trial and a longer more in-depth qualitative paper focusing on the intervention. I intend to publish by 20/10/2018. I also hope to present my work at a relevant academic conference in 2018.

A lay summary will be sent to participants and their families in both arms of the trial. A similar summary will also be sent to staff who participated in the trial and a PowerPoint presentation will be offered to all participating CAMHS teams to discuss the implications for clinical practice.

IPD sharing statement:
The thesis (including the quantitative data set as an appendix) has been deposited in Durham University’s e-thesis depositary ( The thesis has been embargoed for a two year period (until 26/04/2020) to allow sufficient time for the results to be published in a peer-reviewed journal, after which time it will be open access ( Qualitative data is also included in the thesis in the form of direct quotes but the original transcripts have not been included due to the inability to adequately anonymise the data set. Copyright of the thesis is held by Miss Charlotte Kitchen.

Intention to publish date


Participant level data

To be made available at a later date

Basic results (scientific)

See additional file (ISRCTN52147450_BasicResults_20Oct17)

Publication list

Publication citations

Additional files

Editorial Notes

28/06/2018: IPD sharing statement added. 11/01/2018: The basic results of this trial have been uploaded as an additional file 20/10/2017: The overall trial start date has been updated from 01/03/2015 to 09/05/2014. The publication and dissemination sharing plans have been added. The participant level data sharing statement has been added. The interventions have been added and the outcome measures have been updated.