Reducing self-harm in a clinical sample using IF-THEN plans

ISRCTN ISRCTN42425293
DOI https://doi.org/10.1186/ISRCTN42425293
IRAS number 261036
Secondary identifying numbers IRAS 261036
Submission date
27/01/2021
Registration date
27/01/2021
Last edited
27/01/2021
Recruitment status
Stopped
Overall study status
Stopped
Condition category
Mental and Behavioural Disorders
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims
Nearly 800,000 people die from suicide each year and a history of self-harm has been identified as a key predictor. Implementation intentions (IMPs) have recently shown promise in the reduction of self-harm behaviour. An area worthy of investigation is the cognitive abilities of self-harm patients. Theoretically cognitive abilities are essential for enabling IMPs to change behaviour and it is also known that there is substantial variation in cognitive abilities within samples of self-harm patients. The aim of this study is to test implementation intentions and identify key cognitive abilities that distinguish between those who successfully change their behaviour following an IMP intervention and those who do not. This study aims to:
1. Test the extent to which making implementation intentions reduce self-harm in the longer-term (3 months post-intervention) using objective outcomes (hospital readmission rates) in addition to self-reported outcomes (e.g., situation-specific self-harm behaviour)
2. Explore the profiles of cognitive abilities within self-harm patients and identify which are likely to help explain why making implementation intentions reduce self-harm and suicide outcomes for some patients but not others.

Who can participate?
Adults aged 18 and above who have been admitted to Forth Valley Royal hospital and referred to the Mental Health Unit following an incident of self-harm

What does the study involve?
All participants will receive treatment as usual before participating in the study. Participants will be asked to complete a questionnaire answering questions about current and previous self-harm, their psychological well-being and their motivation to stop self-harm. Following this, participants will be randomly allocated to one of three groups.
1. Implementation intentions: Participants in this group will complete a volitional help sheet (i.e., form implementation intentions) with the PhD researcher able to help if required. The volitional help sheet will present participants with 20 situations which might tempt them to self-harm (e.g., If I am tempted to self-harm when I want to get relief from a terrible state of mind) and 20 strategies they could use to overcome this temptation (e.g., Then I will recall all that I know about the dangers of self-harming). Participants are asked to draw a line from a situation to a strategy and can make a maximum of four situation and strategy pairs. The implementation intentions intervention will require 5 to 10 minutes.
2. Implementation intentions plus reinforcement: Participants in this intervention group will complete the volitional help sheet (i.e., form implementation intentions) the same way as outlined above for the implementation intentions group, with the PhD researcher able to help if required. In addition, after the cognitive abilities have been measured, participants in this group will be asked if they can recall the implementation intentions they made earlier in the session. The implementation intentions intervention and the reinforcement task will require 15 minutes.
3. Control: Participants in the control group will be shown the situations from the volitional help sheet and asked to tick the four they think would tempt them to engage in self-harm in the next 3 months only. The control intervention will require 5 minutes.
In all groups cognitive ability will then be measured. Additionally, the participants allocated to the implementation intentions plus reinforcement will complete the reinforcement task after the cognitive ability measures have been taken. After 3 months, participants are asked to complete a questionnaire to see if the intervention has reduced their self-reported self-harm behaviour and hospital records will be accessed to see if the intervention has reduced re-admission to hospital self-harm.

What are the possible benefits and risks of participating?
There are no expected risks for participants. Participants might find the study beneficial in helping them reduce future self-harm.

Where is the study run from?
Forth Valley Royal Hospital (UK)

When is the study starting and how long is it expected to run for?
November 2017 to May 2021

Who is funding the study?
Economic and Social Research Council (UK)

Who is the main contact?
1. Dr Susan Rasmussen
s.a.rasmussen@strath.ac.uk
2. Abigail Paterson
abigail.paterson@strath.ac.uk

Contact information

Dr Susan Rasmussen
Scientific

School of Psychological Sciences and Health
University of Strathclyde
Graham Hills Building
40 George Street
Glasgow
G1 1QE
United Kingdom

Phone +44 (0)141 548 2575
Email s.a.rasmussen@strath.ac.uk
Miss Abigail Paterson
Public

School of Psychological Sciences and Health
University of Strathclyde
Graham Hills Building
40 George Street
Glasgow
G1 1QE
United Kingdom

Phone +44 (0)141 548 2700
Email abigail.paterson@strath.ac.uk

Study information

Study designSingle-centre three-arm randomized controlled study
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typePrevention
Participant information sheet Not available in web format, please use contact details to request a participant information sheet
Scientific titleTesting the effectiveness of an implementation intentions intervention to reduce self-harm in a clinical sample and testing the moderating effects of cognitive abilities
Study objectives1. The two conditions which include the completion of volitional help sheets (implementation intentions and implementation intentions plus reinforcement) will reduce the frequency of self-harm at three months post-intervention for (i) self-reported self-harm and (ii) readmission to hospital for self-harm compared to the control condition.
2. The implementation intentions and implementation intentions plus reinforcement conditions will be most effective in reducing self-harm behaviour for individuals who report greater ability in cognitive outcomes at baseline.
Ethics approval(s)1. Approved 11/11/2019, North of Scotland Research Ethics Committee 2 (2 Eday Road, Aberdeen, Summerfield House, Scotland, AB15 6RE, UK; +44 (0)1244 558 503; gram.nores@nhs.scot), REC ref: 19/NS/0151
2. Approved 13/11/2019, University of Strathclyde Ethics Committee (Research & Knowledge Exchange Services, University of Strathclyde, Graham Hills Building, 50 George Street, Glasgow, G1 1QE, UK; +44 (0)141 548 3707; ethics@strath.ac.uk), ref: not applicable
Health condition(s) or problem(s) studiedSelf-harm (self-injury or self-poisoning irrespective of the motivation)
InterventionAt baseline, all participants will receive treatment as usual and complete a questionnaire measuring standard demographic information, current and previous self-harm, psychological well-being, and motivation to self-harm.
Following this, participants will be randomised to one of three conditions. Participants will be randomised using a random number generator (an online integer generator was chosen for the study to ensure randomisation across conditions was equal).

1. Implementation intentions: Participants in this intervention group will complete a volitional help sheet (i.e., form implementation intentions) with the PhD researcher able to help if required. The volitional help sheet will present participants with twenty situations which might tempt them to self-harm (e.g., If I am tempted to self-harm when I want to get relief from a terrible state of mind) and twenty strategies they could use to overcome this temptation (e.g., Then I will recall all that I know about the dangers of self-harming). Participants are asked to draw a line from a situation to a strategy and can make a maximum of four situation and strategy pairs. The implementation intentions intervention will require 5 to 10 minutes.
2. Implementation intentions plus reinforcement: Participants in this intervention group will complete the volitional help sheet (i.e., form implementation intentions) the same way as outlined above, for the implementation intentions group, with the PhD researcher able to help if required. In addition, after the cognitive abilities have been measured, participants in this condition will be asked if they can recall the implementation intentions they made earlier in the session. The implementation intentions intervention and the reinforcement task will require 15 minutes.
3. Control intervention: Participants in the control intervention will be shown the situations from the volitional help sheet and asked to tick the four they think would tempt them to engage in self-harm in the next 3 months only. The control intervention will require 5 minutes.

Three months later all participants will be invited to complete the follow-up questionnaire.
Intervention typeBehavioural
Primary outcome measure1. Self-reported self-harm behaviour overall and in critical situations measured using 9-point Likert scales at baseline and 3 months post-intervention
2. Re-admission to hospital for self-harm measured in weeks/months and collected from the patient’s medical files on the basis that their permission has been obtained to do so during the informed consent process. This information will be collected at 3 months post-intervention.
Secondary outcome measures1. Working memory measured using the List Sorting Test at baseline
2. Episodic memory measured using the Picture Sequence Memory Test at baseline
3. Executive function measured using the Flanker Test at baseline
4. Processing speed measured using the Pattern Comparison Processing Speed Task at baseline
5. Prospective memory measured using two event-based prospective memory items from the Royal Prince Albert Prospective Memory Test and the Prospective Retrospective Memory Questionnaire at baseline
Overall study start date15/11/2017
Completion date22/05/2021
Reason abandoned (if study stopped)Participant recruitment issue

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
SexBoth
Target number of participants318 (106 participants in each trial arm)
Key inclusion criteria1. Aged 18 years and over, no upper age limit
2. Admitted to Forth Valley Royal Hospital and referred to the mental health unit for self-harm
Key exclusion criteria1. Those who do not provide informed consent
2. Those who are unable to provide informed consent
3. Those not deemed medically fit to interview
4. Those who do not use English as a first language
5. Those who cannot provide follow-up contact information (as the intervention involves a telephone follow-up interview 3 months later)
6. Those who do not have normal or corrected to normal vision
7. Those who are participating in other research in Forth Valley
8. Those who present to an emergency department but are subsequently discharged without referral to the mental health unit at Forth Valley Royal Hospital
9. Those who are admitted to hospital for self-harm which is the result of excessive alcohol consumption or recreational drugs, mismanagement of a physical health condition, body piercing or starvation arising from anorexia nervosa
Date of first enrolment31/01/2020
Date of final enrolment03/02/2021

Locations

Countries of recruitment

  • Scotland
  • United Kingdom

Study participating centre

Forth Valley Royal Hospital
Mental Health Unit
Forth Valley Royal Hospital
Stirling Road
Larbert
Falkirk
FK5 4WR
United Kingdom

Sponsor information

University of Strathclyde
University/education

Legal Counsel to the University
University of Strathclyde
Room 2.57 McCance Building
16 Richmond Street
Glasgow
G1 1XQ
Scotland
United Kingdom

Phone +44 (0)141 548 4364
Email louise.mckean@strath.ac.uk
Website https://www.strath.ac.uk/rkes
ROR logo "ROR" https://ror.org/00n3w3b69

Funders

Funder type

Research council

Economic and Social Research Council
Government organisation / National government
Alternative name(s)
ESRC
Location
United Kingdom

Results and Publications

Intention to publish date22/05/2022
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot expected to be made available
Publication and dissemination plan1. The study will be written up as part of a doctoral thesis and possible publication in a peer-reviewed journal
2. Additional documents will not be made available
IPD sharing planAnonymous participant raw data was planned to be stored on the UK Data Service repository as permission to do so was provided during the informed consent process. The UK Data Service was chosen as it is the service provided for researchers who receive ESRC funding. Data is stored indefinitely in this repository.

The study was abandoned due to recruitment being suspended from March 2020 because of COVID-19. The study will now be reported as a feasibility pilot study only with a view to assess the procedure and methods that were employed and how well they worked. As a result, the data will no longer be stored in a data repository as it is incomplete.

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
HRA research summary 28/06/2023 No No

Editorial Notes

27/01/2021: Trial's existence confirmed by North of Scotland Research Ethics Committee 2. The trial was stopped due to recruitment being suspended from March 2020 because of COVID-19.