ISRCTN ISRCTN11106183
DOI https://doi.org/10.1186/ISRCTN11106183
Secondary identifying numbers 152958
Submission date
25/07/2018
Registration date
27/07/2018
Last edited
18/08/2023
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Mental and Behavioural Disorders
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English Summary

Background and study aims
Patients with depression and anxiety problems accessing the English National Health Service are commonly referred for psychological treatment in IAPT services (Improving Access to Psychological Therapies). IAPT services organise treatment in a stepped care model, where most patients tend to initially receive brief and low intensity interventions before accessing more intensive psychological therapies if required. Recent studies have shown that some patients with more complex clinical presentations tend to drop out and have poor outcomes in low intensity treatments, but they respond better to high intensity treatments. These studies have suggested that referring 'complex cases' directly to high intensity treatments (stratified care) could considerably improve their likelihood of improvement in depression symptoms. The aim of this study is to compare the effectiveness of a stratified care model (where complex cases are matched to high intensity treatments) versus usual stepped-care.

Who can participate?
Therapists and their patients who are eligible for treatment in IAPT

What does the study involve?
Therapists (and patients they assess) are randomly allocated to the StratCare group or the usual care control group. Therapists in the StratCare group are trained to use a computer programme that helps them to identify complex cases and to adequately refer these to high intensity treatments. Control group therapists assess patients and make referrals for treatment in the usual way (based on their clinical judgment and following stepped care principles). Participants’ depression and anxiety are measured before and after treatment.

What are the possible benefits and risks of participating?
The StratCare treatment selection method may result in improved depression symptoms for patients classified as having a complex clinical profile. It is not expected that taking part in the study will lead to any disadvantages or risks to therapists or to any patients.

Where is the study run from?
1. Lancashire Care NHS Foundation Trust (UK)
2. Rotherham, Doncaster and South Humber NHS Foundation Trust (UK)

When is the study starting and how long is it expected to run for?
August 2018 to December 2019

Who is funding the study?
MindLife UK

Who is the main contact?
Dr Jaime Delgadillo
jaime.delgadillo@nhs.net

Study website

Contact information

Dr Jaime Delgadillo
Scientific

Clinical Psychology Unit
University of Sheffield
Cathedral Court, Floor F
1 Vicar Lane
Sheffield
S1 2LT
United Kingdom

ORCiD logoORCID ID 0000-0001-5349-230X
Phone +44 (0)114 222 6614
Email jaime.delgadillo@nhs.net

Study information

Study designPragmatic cluster randomised controlled trial
Primary study designInterventional
Secondary study designCluster randomised trial
Study setting(s)Community
Study typeTreatment
Participant information sheet https://www.stratcare.co.uk/information/
Scientific titlePragmatic randomised controlled trial of a stratified care model for depression and anxiety
Study acronymStratCare
Study hypothesisPatients in the StratCare group will have significantly greater improvement in depression symptoms after psychological treatment, compared to those in the usual care control group. It is expected that this effect will be found specifically in the subsample of patients classified as complex cases at the time of initial assessment.
Ethics approval(s)West of Scotland Research Ethics Service, 18/07/18, ref: 18/WS/0114
ConditionCommon mental health problems (depression, anxiety)
InterventionPsychological therapists who carry out mental health assessments in routine primary care services will be randomly assigned to an experimental group (StratCare) or a usual care control group.

Therapists in the experimental group will have access to a computerized artificial intelligence programme called the StratCare App. The programme prompts therapists to enter (fully anonymized) data for patients who they assess, and uses a machine learning algorithm to recommend a specific type of psychological treatment, based on each patient's characteristics.

Control group therapists will assess patients and make referrals for treatment in the usual way (based on their clinical judgment and following stepped care principles).
Intervention typeDevice
Pharmaceutical study type(s)
PhaseNot Applicable
Drug / device / biological / vaccine name(s)Not provided at time of registration
Primary outcome measureDepression measured using PHQ-9 pre (initial assessment) and post-treatment (final therapy session)
Secondary outcome measures1. Anxiety measured using GAD-7 pre (initial assessment) and post-treatment (final therapy session)
2. Treatment dropout rates, as recorded in routine clinical records
3. Therapists' adherence to the StratCare treatment recommendations, as measured by statistical reliability indices (hit rates, and treatment-matching precision scores)
4. Cost-effectiveness of the StratCare model by comparison to usual care, determined using a cost-effectiveness acceptability curve (CEAC)
Overall study start date06/08/2018
Overall study end date20/12/2019

Eligibility

Participant type(s)Health professional
Age groupAdult
SexBoth
Target number of participants760 cases need to be assessed to identify 226 complex cases (target subsample for primary analysis)
Total final enrolment951
Participant inclusion criteria1. Consenting psychological wellbeing practitioners and psychotherapists that carry out routine assessments in an IAPT service (Improving Access to Psychological Therapies programme in England)
2. Therapists who are employed by a participating IAPT service on a permanent contract, or temporary staff who have a contract that is at least as long as the expected timescale for the project (1 year)
3. All consenting patients who are assessed by participating therapists, who are deemed eligible for treatment in IAPT, and who attend at least one post-assessment therapy session
Participant exclusion criteria1. Therapists whose contract is shorter than the expected timescale for the study (1 year)
2. Therapists currently in training, since they are not yet fully qualified to carry out routine assessments
3. Patients who are assessed as ineligible for treatment in IAPT (eg, those who are signposted to other services), or eligible patients who never attend any therapy sessions after an initial assessment contact
Recruitment start date13/08/2018
Recruitment end date01/05/2019

Locations

Countries of recruitment

  • England
  • United Kingdom

Study participating centres

Lancashire Care NHS Foundation Trust
Preston
PR1 8UY
United Kingdom
Rotherham, Doncaster and South Humber NHS Foundation Trust
Doncaster
DN8 5HU
United Kingdom

Sponsor information

University of Sheffield
University/education

Department of Psychology
University of Sheffield
Cathedral Court
1 Vicar Lane
Sheffield
S1 2LT
England
United Kingdom

Phone +44 (0)114 222 6517
Email psychology@sheffield.ac.uk
Website https://www.sheffield.ac.uk/psychology/index
ROR logo "ROR" https://ror.org/05krs5044

Funders

Funder type

Industry

MindLife UK

No information available

Results and Publications

Intention to publish date20/02/2020
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryData sharing statement to be made available at a later date
Publication and dissemination planAdditional documents, including a full study protocol, statistical analysis plan and copies of relevant assessment measures are available upon request from the Chief Investigator. These documents have been pre-registered and independently reviewed via the UK Integrated Research Approval System (IRAS). A full description of the StratCare algorithm has been published in a scientific journal and is publicly available at: https://doi.org/10.1037/ccp0000231

Results of the trial will be published in scientific journals. Results will also be shared with the participating services at local team meetings and through a research newsletter.
IPD sharing planThe data sharing plans for the current study are unknown and will be made available at a later date.

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article 08/12/2021 09/12/2021 Yes No
HRA research summary 28/06/2023 No No
Protocol (other) 18/08/2023 No No

Editorial Notes

18/08/2023: A link to the protocol file was added.
09/12/2021: The following changes have been made:
1. Publication reference added.
2. The total final enrolment number has been added from the reference.