Intervention Targeting Motivational Negative Symptoms
Switch
Development and Validation of an Intervention Targeting Motivational Negative Symptoms: Switch Protocol 2
1 other identifier
interventional
13
1 country
1
Brief Summary
This study aims to investigate the effects of the Switch intervention on motivation and associated processes and explore the dynamics between the processes. A single case approach is followed, with a pre-post and follow-up assessment design, and continuous ambulatory assessments (experience sampling method (ESM) and step count).
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable schizophrenia
Started Apr 2019
Shorter than P25 for not_applicable schizophrenia
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
April 20, 2019
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 6, 2019
CompletedStudy Completion
Last participant's last visit for all outcomes
February 27, 2020
CompletedFirst Submitted
Initial submission to the registry
March 19, 2020
CompletedFirst Posted
Study publicly available on registry
March 27, 2020
CompletedMarch 27, 2020
March 1, 2020
8 months
March 19, 2020
March 25, 2020
Conditions
Outcome Measures
Primary Outcomes (12)
Brief Negative Symptom Scale (BNSS)
There are 13 items that are scored from 0 to 6 (0 = no impairment; 1 = very slight; 2 = mild; 3 = moderate; 4 = moderately severe; 5 = marked; 6 = severe). The Expressive deficit factor includes the following subscales: Blunted affect (facial expression, vocal expression, expressive gestures) and Alogia (quantity of speech, spontaneous elaboration).Each item is scored from 0 to 6 (0 = no impairment; 1 = very slight; 2 = mild; 3 = moderate; 4 = moderately severe; 5 = marked; 6 = severe).
Baseline
Brief Negative Symptom Scale (BNSS)
There are 13 items that are scored from 0 to 6 (0 = no impairment; 1 = very slight; 2 = mild; 3 = moderate; 4 = moderately severe; 5 = marked; 6 = severe). The Expressive deficit factor includes the following subscales: Blunted affect (facial expression, vocal expression, expressive gestures) and Alogia (quantity of speech, spontaneous elaboration).Each item is scored from 0 to 6 (0 = no impairment; 1 = very slight; 2 = mild; 3 = moderate; 4 = moderately severe; 5 = marked; 6 = severe).
2 months (post intervention)
Brief Negative Symptom Scale (BNSS)
There are 13 items that are scored from 0 to 6 (0 = no impairment; 1 = very slight; 2 = mild; 3 = moderate; 4 = moderately severe; 5 = marked; 6 = severe). The Expressive deficit factor includes the following subscales: Blunted affect (facial expression, vocal expression, expressive gestures) and Alogia (quantity of speech, spontaneous elaboration).Each item is scored from 0 to 6 (0 = no impairment; 1 = very slight; 2 = mild; 3 = moderate; 4 = moderately severe; 5 = marked; 6 = severe).
6 months (follow-up)
Lille Apathy Rating Scale (patient version) (LARS-p)
The LARS is a semi-structured interview designed to evaluate the different dimensions (cognitive, emotional and behavioural) of apathy in schizophrenia, through the following subscales: Everyday productivity, Interests, Taking initiatives, Novelty seeking, Voluntary actions, Emotional responses, Concern, Social life and Self-awareness. The total score ranges from -36 to 36 (\[-36; -22\] = absence of apathy; \[-21; -17\] = tendency towards apathy; \[-16; -10\] = moderate apathy; \[-9; 36\] = severe apathy).
Baseline
Lille Apathy Rating Scale (patient version) (LARS-p)
The LARS is a semi-structured interview designed to evaluate the different dimensions (cognitive, emotional and behavioural) of apathy in schizophrenia, through the following subscales: Everyday productivity, Interests, Taking initiatives, Novelty seeking, Voluntary actions, Emotional responses, Concern, Social life and Self-awareness. The total score ranges from -36 to 36 (\[-36; -22\] = absence of apathy; \[-21; -17\] = tendency towards apathy; \[-16; -10\] = moderate apathy; \[-9; 36\] = severe apathy).
2 months (post-intervention)
Lille Apathy Rating Scale (informant version) (LARS-i)
The LARS is a semi-structured interview designed to evaluate the different dimensions (cognitive, emotional and behavioural) of apathy in schizophrenia, through the following subscales: Everyday productivity, Interests, Taking initiatives, Novelty seeking, Voluntary actions, Emotional responses, Concern, Social life and Self-awareness. The total score ranges from -36 to 36 (\[-36; -22\] = absence of apathy; \[-21; -17\] = tendency towards apathy; \[-16; -10\] = moderate apathy; \[-9; 36\] = severe apathy).
6 months (follow-up)
Schizophrenia - Quality of Life questionnaire
The S-QoL is a 41-item questionnaire that evaluates life satisfaction regarding psychological wellbeing, self-esteem, family relationships, relationships with friends, resilience, physical wellbeing, autonomy and sentimental life. Items are rated on a 5-point Likert scale (1 = much less satisfied than expected; 2 = less satisfied; 3 = slightly less satisfied; 4 = as satisfied; 5 = more satisfied). The total score ranges from 0 to 100, higher scores indicating better subjective quality of life.
Baseline (month 0)
Schizophrenia - Quality of Life questionnaire
The S-QoL is a 41-item questionnaire that evaluates life satisfaction regarding psychological wellbeing, self-esteem, family relationships, relationships with friends, resilience, physical wellbeing, autonomy and sentimental life. Items are rated on a 5-point Likert scale (1 = much less satisfied than expected; 2 = less satisfied; 3 = slightly less satisfied; 4 = as satisfied; 5 = more satisfied). The total score ranges from 0 to 100, higher scores indicating better subjective quality of life.
2 months (post-intervention)
Schizophrenia - Quality of Life questionnaire
The S-QoL is a 41-item questionnaire that evaluates life satisfaction regarding psychological wellbeing, self-esteem, family relationships, relationships with friends, resilience, physical wellbeing, autonomy and sentimental life. Items are rated on a 5-point Likert scale (1 = much less satisfied than expected; 2 = less satisfied; 3 = slightly less satisfied; 4 = as satisfied; 5 = more satisfied). The total score ranges from 0 to 100, higher scores indicating better subjective quality of life.
6 months (follow-up)
Functional Remission of General Schizophrenia (FROGS)
The FROGS is a measure of daily life outcomes, which evaluates level of functioning in 5 different domains: Daily life, Activities, Relationships, Quality of adaptation, and Health and treatment. The total score ranges from 19 to 95. The threshold score for remission is 61.
Baseline
Functional Remission of General Schizophrenia (FROGS)
The FROGS is a measure of daily life outcomes, which evaluates level of functioning in 5 different domains: Daily life, Activities, Relationships, Quality of adaptation, and Health and treatment. The total score ranges from 19 to 95. The threshold score for remission is 61.
2 months (post-intervention)
Functional Remission of General Schizophrenia (FROGS)
The FROGS is a measure of daily life outcomes, which evaluates level of functioning in 5 different domains: Daily life, Activities, Relationships, Quality of adaptation, and Health and treatment. The total score ranges from 19 to 95. The threshold score for remission is 61.
6 months (follow-up)
Secondary Outcomes (8)
Experience Sampling Method
Baseline (14 days): 5 triggers/day
Experience Sampling Method
Intervention phase (60 days): 3 triggers/day
Experience Sampling Method
Post-intervention (14 days): 5 triggers/day
Experience Sampling Method
Follow-up (14 days): 5 triggers/day
Step count
Baseline (14 days): 5 triggers/day
- +3 more secondary outcomes
Study Arms (2)
Switch - i
EXPERIMENTALIndividual sessions
Switch - g
EXPERIMENTALGroup programme
Interventions
Participants follow the Switch intervention through individual sessions (1 hour, twice a week, for around 2 months). Participants are provided with a folder which presents the rational for each strategy. Take-home assignments are given and stored in the same folder. Participants are also given small cards (that can fit in their wallet) containing the key elements of each strategy. The intervention manual can be obtained from the main investigator (in French).
Participants follow the Switch group programme (2 hours, twice a week, for around 2 months). During the group sessions, a powerpoint presentation and different media are used to present the different parts of the motivation model. Participants learn the different strategies (e.g., cognitive defusion, pleasure anticipation, problem solving) through individual and group exercises. Participants are provided with a folder which presents the rational for each strategy. Take-home assignments are given and stored in the same folder. Participants are also given small cards (that can fit in their wallet) containing the key elements of each strategy. The intervention manual and the presentation material can be obtained from the main investigator (in French).
Eligibility Criteria
You may qualify if:
- Diagnostic and Statistical Manual-V (DSM-V) criteria for schizophrenia, schizoaffective, bipolar or major depressive disorder (American Psychiatric Association, 2013).
- Good understanding of French.
You may not qualify if:
- Presenting an unstable clinical picture;
- Evidence of a significant change in medication within one month prior to baseline assessment;
- Having a history of severe brain trauma or epilepsy;
- Comorbid intellectual disability;
- Moderate or severe substance use disorder other than tobacco (according to the DSM-V; i.e., showing 4 or more symptoms).
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- University of Liegelead
- Fonds National de la Recherche Scientifiquecollaborator
Study Sites (1)
University of Liege
Liège, 4000, Belgium
Related Publications (1)
Thonon B, Van Aubel E, Lafit G, Della Libera C, Laroi F. Idiographic analyses of motivation and related processes in participants with schizophrenia following a therapeutic intervention for negative symptoms. BMC Psychiatry. 2020 Sep 25;20(1):464. doi: 10.1186/s12888-020-02824-5.
PMID: 32977798DERIVED
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Frank Laroi, PhD
University of Liege
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Masking Details
- A blinding procedure was used for the evaluation of the Brief Negative Symptom Scale: interviews were recorded and each video or sound recording was evaluated at the end of the study by one (or two) independent evaluator who was unaware of the recordings' assessment time.
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Principal investigator
Study Record Dates
First Submitted
March 19, 2020
First Posted
March 27, 2020
Study Start
April 20, 2019
Primary Completion
December 6, 2019
Study Completion
February 27, 2020
Last Updated
March 27, 2020
Record last verified: 2020-03
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, SAP, ICF, ANALYTIC CODE
Data and analyses will be available from an online repository or from the principal investigator.