Condition category
Mental and Behavioural Disorders
Date applied
Date assigned
Last edited
Prospectively registered
Overall trial status
Recruitment status

Plain English Summary

Background and study aims
Over the last few decades, a widespread practice in psychotherapy and counselling research has been to develop specific psychotherapeutic treatments for specific psychological problems. So for example different versions of Cognitive Behaviour Therapy (CBT) have been developed for depression and for social anxiety. However, research has shown that individuals with mental health difficulties often struggle with more than one psychological problem at the same time (e.g., a patient might suffer from both depression and social anxiety). Research also indicates that while these different problems may look different, they often share common causes and can be maintained by common processes. For these reasons, a recent development in psychotherapy research has been to develop what are called 'transdiagnostic' interventions, whereby the same intervention can be used to treat patients presenting with a range of different problems and/or patients struggling with more than one problem. To date most transdiagnostic interventions are adaptations of CBT. However not all patients benefit from or prefer CBT, and so there is an argument that patient well-being can be improved by increasing the range or choice of evidence-based interventions available. Emotion-focused Therapy (EFT) is an evidence-based intervention that has been shown to be effective for a range of psychological problems. The current study seeks to adapt EFT as a transdiagnostic treatment for depression, anxiety and a number of related disorders. It also seeks to test the effectiveness of the adapted model by comparing the outcomes (that is, the extent to which participants experience a change in their symptoms) for 20 patients treated with EFT in a community-based couselling service with the outcomes for 20 patients placed on a waiting list. Waiting list patients will get therapy at a later point. Video- recordings of therapy and interviews with participants will be studied in order to further develop the model.

Who can participate?
Individuals who are 18 years or older. Individuals who meet criteria for one or more of the following conditions; depression (major depressive disorder or persistent depressive disorder), anxiety (social anxiety, generalised anxiety, specific phobia, agoraphobia, panic disorder), obsessive-compulsive disorder (i.e., OCD) or a trauma related disorder (including Post Traumatic Stress Disorder).

What does the study involve?
Participants will be allocated randomly to one of two conditions: either (1) active condition – approx. 16 sessions of emotion-focused therapy, or (2) waitlist/delayed intervention. Participants allocated to the waitlist condition will be given an appointment to begin therapy in 16 weeks.

What are the possible benefits and risks of participating?
Participants will be offered psychotherapy already established as a treatment of depression and potentially anxiety by certified EFT therapists and/or psychologists who are closely supervised by an expert in EFT. Therapy will be provided free of charge.

As with any psychological therapy, not everyone may find therapy helpful, and a small number of people may get worse while in therapy. The research procedure may be time consuming, and the therapy or research procedure may stir difficult emotions. You will also be randomly allocated to either therapy or waitlist/delayed intervention and if allocated to the waitlist condition will have to wait 16 weeks before therapy begins. We will attend to these risks by endeavouring to be respectful and supportive at all times through the process.

Where is the study run from?
The premises of the Institute of Emotion-Focused Therapy Ireland.

When is the study starting and how long it is expected to run for?
The recruitment starts in February 2019 and will continue for at least 2 years.

Who is funding the study?
This study is being conducted by researchers at the School of Psychology in Trinity College Dublin in conjunction with the Institute of Emotion-Focused Therapy Ireland.

Who is the main contact?
Dr. Ladislav Timulak

Trial website

Contact information



Primary contact

Dr Ladislav Timulak


Contact details

School of Psychology
Trinity College Dublin
United Kingdom

Additional identifiers

EudraCT number number

Protocol/serial number


Study information

Scientific title

Emotion-Focused Therapy as a Transdiagnostic treatment for depression and anxiety and related disorders: An initial randomised control trial.



Study hypothesis

EFT-T will be more effective than wait-list control.

Ethics approval

Trinity College Dublin's School of Psychology Research Ethics Committee, 14/12/2018, ref. SPREC102018-18.

Study design

Interventional, randomised controlled trial

Primary study design


Secondary study design

Randomised controlled trial

Trial setting


Trial type


Patient information sheet

See additional files


Depression and anxiety and related disorders (such as obsessive-compulsive disorders and trauma/stressor related disorders).


Emotion-Focused Therapy – Transdiagnostic (EFT-T)
The EFT-T intervention will follow a recently developed model (Timulak, 2015; Timulak & Keogh, 2018) integrating EFT adaptations for various disorders (e.g., Elliott & Shahar, 2017; Greenberg & Watson, 2006; Paivio & Pascual-Leone, 2010; Timulak & McElvaney, 2017; Watson & Greenberg, 2017) using a unique transdiagnostic framework. The transdiagnostic model, conceptually based on a model of emotional transformation processes in psychotherapy (see Timulak, 2015 and Timulak & McElvaney, 2017), uses (1) elements of a modular approach targeting symptom level presentations (i.e., with some interventions used in the context of certain primary diagnoses/presentations) and (2) an underlying emotional vulnerability approach that targets the chronic painful (feared) emotions of sadness/loneliness, shame, and fear/terror present in depression, anxiety and related disorders. The EFT-T model uses a specific case conceptualisation which postulates that symptoms of depression and anxiety signal difficulty (e.g., dysregulation/avoidance) in processing specific chronic painful feelings (e.g., sadness/loneliness, shame, and primary fear/terror) triggered in the client’s interaction with the environment.

Therapy will last 16 to 20 sessions. Therapists will be instructed to finish therapy at session 16, but will have flexibility based on their clinical judgement to extend therapy to a maximum of 20 sessions.

The design of the study is a randomised controlled trial (RCT) with two groups (EFT and wait-list with an ensuing delayed intervention-EFT). Clients (n=40) will be randomized to two groups. Participants will be recruited via GP referral and the trial will be promoted by an advertisement on the hosting clinic’s website. Participants will then be seen in a private clinic offering psychological therapy to people with depression, anxiety and related disorders.

Waitlist group will undergo the same therapy 16 weeks after they are put on the waitlist.

Intervention type



Drug names

Primary outcome measure

To be measured at pre-therapy, post therapy (16 weeks; but also post last session in cases where the last session falls outside the range of 16 ± 2 weeks) and at 6-month follow up:
1. Anxiety severity will be measured using the Anxiety Severity and Impairment Scale (OASIS; Norman, Cissell, Means-Christensen, Stein, 2006).
2. Depression severity will be measured using the Overall Depression Severity and Impairment Scale (ODSIS; Bentley, Gallagher, Carl, & Barlow, 2014).
3. Psychological distress will be measured using the CORE-OM will also be used by all participants pre-, post, and at 6-month follow-up.

Secondary outcome measures

1. Each participant will also be asked to complete at pre-therapy, post therapy (16 weeks; but also post last session in cases where the last session falls outside the range of 16 ± 2 weeks) and at 6-month follow up, at least one of the following disorder specific measures, as determined by the principal diagnosis assessed at pre-therapy.
1.1. The Patient Health Questionnaire (PHQ-9; Kroenke et al., 2001).
1.2. The Generalised Anxiety Disorder-7 (GAD-7; Spitzer et al., 2006).
1.3. Liebowitz Social Anxiety Scale (LSAS; Liebowitz, 1987).
1.4. The Panic Disorder Severity Scale (PDSS; Shear et al., 1997).
1.5. The Yale-Brown Obsessive Compulsive Scale – Self-Report version (YBOCS-SR; Baer et al., 1993).
1.6. The Post-traumatic Stress Disorder Checklist – Civilian Version (PCL-C; Blanchard, Jones-Alexander, Buckley, & Forneris, 1996).
2. The following measures will be administered during the pre-therapy assessment, with those measures on which a client scores ≥8 thereafter administered prior to each session, post-therapy and at follow-up:
2.1. The Overall Shame Severity and Impairment Scale (OSSIS).
2.2. The Overall Loneliness Severity and Impairment Scale (OLSIS).
2.3. The Overall Fear Severity and Impairment Scale (OFSIS).
3. The changes a participant has noticed since treatment began will be measured post-treatment using the Client Change Interview (CCI; Elliott et al., 2001).

Overall trial start date


Overall trial end date


Reason abandoned (if study stopped)


Participant inclusion criteria

1. Meet the criteria for depression, an anxiety disorder and/or related disorder (obsessive-compulsive disorders and trauma/stressor related disorders) as a principal diagnosis.
2. If taking psychotropic medication then must be stabilised on that medication for 6 weeks prior to commencing therapy.
2.1. Shows, with their physician’s approval, a willingness to maintain this stability in medication use during the period of therapy

Participant type


Age group




Target number of participants


Participant exclusion criteria

1. Concurrent psychological treatment
2. Suicide risk
3. Risk of harm to others
4. Substance abuse
5. Psychosis
6. Organic brain syndrome

Recruitment start date


Recruitment end date



Countries of recruitment


Trial participating centre

Institute of Emotion-Focused Therapy, Ireland
22 South Frederick Street
United Kingdom

Sponsor information


Trinity College Dublin

Sponsor details

School of Psychology
College Green
United Kingdom

Sponsor type




Institute of Emotion-Focused Therapy, Ireland

Sponsor details

22 South Frederick Street
United Kingdom

Sponsor type




Funder type


Funder name

Investigator initiated and funded

Alternative name(s)

Funding Body Type

Funding Body Subtype


Results and Publications

Publication and dissemination plan

The following peer reviewed publications will be realised from the research.
1. Publication of the trial protocol.
2. Publication of the main outcomes results.
3. One or two publications of qualitative outcomes and clients' perspectives.
4. One or two publications based on process outcome research
It is envisaged that publications will be published in an open access format for which we seek funding.

Members of the team will also attend:
1. One national mental health conference per year where they will inform peers in the national mental
health research community about the study, the protocol and preliminary/final findings.
2. At least one relevant international conference on mental health per year where they will inform peers in the international psychotherapeutic research community about the study, the protocol and preliminary/final findings.

It is envisaged that the school of psychology website will provide information about the trial and will provide links to the relevant publications from the trial. Additionally, should the results from the present study prove promising, we will explore options for multi-site trials and collaborations with international collaborators from the EFT and transdiagnostic research communities. Locally this would involve training clinicians in the relevant staturory service (e.g., CIPC) where a trial could be located. Once further testing/valdiated of the intervention has taken place, it is anticipated that wider training in the intervention could be rolled out to CIPC and/or relevant HSE clinicians.

IPD sharing statement: the data sharing plans for the current study are unknown and will be made available at a later date.

Intention to publish date


Participant level data

To be made available at a later date

Basic results (scientific)

Publication list

Publication citations

Additional files

Editorial Notes

05/05/2020: Due to current public health guidance, recruitment for this study has been paused. 24/04/2019: Internal review. 07/01/2019: The participant information sheet has been uploaded as an additional file.