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出境医 / 临床实验 / Virtual Reality Training for Social Skills in Schizophrenia - Comparison With Cognitive Training

Virtual Reality Training for Social Skills in Schizophrenia - Comparison With Cognitive Training

Study Description
Brief Summary:

Social impairments are core features of schizophrenia that lead to poor outcome. Social skills and competence improve quality of life and protect against stress-related exacerbation of symptoms, while supporting resilience, interpersonal interactions, and social affiliation. To improve outcome, it is necessary to remediate social deficits. Existing psychosocial interventions are moderately effective but the effort-intensive nature (high burden), low adherence, and weak transfer of skills to everyday life present significant hurdles toward recovery. Thus, there is a dire need to develop effective, engaging and low-burden social interventions for people with schizophrenia that will result in better compliance rates and functional outcome.

In a previous pilot study, the investigators tested the effectiveness of a novel adaptive virtual reality (VR) intervention in improving targeted social cognitive function (social attention, as indexed by eye scanning patterns) in individuals with schizophrenia. 10 sessions of 1-hour VR intervention were sufficient to engage the target mechanism of social attention and improve negative symptoms. Acceptability and compliance were very high among the participants. '

The next phase, supported by a R33 grant will compare the VR social skills training with a control condition. This new protocol includes a control condition for the exposure to computerized training across the 10 sessions and incidental exposure to social interactions (i.e. interactions with experimenters twice a week for 5 weeks) by including a control condition, which involves computerized brain fitness training for 10 sessions.


Condition or disease Intervention/treatment Phase
Schizophrenia Schizo Affective Disorder Social Skills Behavioral: VR social skills training Behavioral: Cognitive training Not Applicable

Detailed Description:

The effectiveness of the social VR training (n=20) at an optimal dose will be compared with an active control condition (computerized cognitive training) (n=20) in improving social attention (social engagement latency: SEL) and social brain network in a pilot RCT.

Participants with schizophrenia will undergo a baseline assessment of cognition, social functioning, symptoms and social brain network functioning. These behavioral, clinical and neuroimaging (fMRI of social imitation task, and resting state connectivity analyses of the social brain network) methods will be used to assess changes.

Individuals with schizophrenia will be randomized to either the social skills training or the computerized cognitive training at baseline. They will then participate in 10 sessions of social skills VR training or computerized cognitive training (1 hour per session, twice a week for 5 weeks).

In addition, long-term social outcome will be assessed approxinately 2 months after the end of training with the Social Functional Scale (Birchwood, 1991) and the SANS and SAPS for clinical symptoms. For the long-term outcome assessment, no imaging or behavioral assessments will be conducted because the primary goal of the follow-up is to assess broad levels of social functioning in the real world and because there is not sufficient time within the R33 mechanism.

16 matched control participants will be recruited to obtain behavioral and neuroiaging comparison data for optimal performance levels but these healthy control participants will not undergo social skills training.

Lastly, at the end of the R33 project, if this adaptive VR technology shows that it can improve social attention, which in turn improves social outcome in schizophrenia, it will be possible to refine the protocol to make the method more accessible, less burdensome and widely available in the future by moving towards a mobile application.

Study Design
Layout table for study information
Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 56 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Intervention Model Description:

Two conditions are compared in individuals with schizophrenia: VR social training and active control condition of computerized cognitive training.

Healthy controls are run on the baseline tasks to provide the comparison data for the patient groups but the controls do not undergo VR training.

Masking: Double (Participant, Outcomes Assessor)
Masking Description: Participants with schizophrenia and Outcome assessors will be blind to the training condition.
Primary Purpose: Basic Science
Official Title: Physiology-based Virtual Reality Training for Social Skills in Schizophrenia
Estimated Study Start Date : September 30, 2021
Estimated Primary Completion Date : September 30, 2022
Estimated Study Completion Date : September 30, 2023
Arms and Interventions
Arm Intervention/treatment
Active Comparator: VR Social Skills Training
Participants will undergo a virtual reality social skills training program for 10 sessions. Each session takes about an hour. Participants visit the lab twice a week. Therefore, the training duration is 5 weeks.
Behavioral: VR social skills training
Social skills game that we developed in the R21 phase will be used across 10 sessions of training in the lab. Each session is about 1 hour long. Participants come to the lab twice a week for 5 weeks.

Cognitive training game
If there is a significant improvement in social skills for the active treatment condition, the reason might be that the participants were exposed to social environment by coming to the lab and interacting with the research staff twice a week for 5 weeks and/or they used a computerized training tool twice a week for 5 weeks. In order to control for these potential confounds, we included a cognitive training arm. Participants will undergo a commercially available brain fitness program (Posit Science) for ten 1-hour sessions (twice a week for 5 weeks).
Behavioral: Cognitive training
Commercially available brain fitness training program will be used to control for the time spent in the lab and associated social interactions as well as the total exposure to computerized games.

No Intervention: Healthy Controls
Healthy controls are recruited to yield comparison data. They do not undergo training.
Outcome Measures
Primary Outcome Measures :
  1. Change in Social Attention: Social Engagement Latency (SEL) [ Time Frame: Baseline and 5 weeks. ]
    Social engagement latency is defined as the time taken to select an avatar to interact with. SE: is measured in milliseconds. This is the targeted mechanism identified in a previous R21 study.

  2. Change in Social Brain Network Activity [ Time Frame: Baseline and 5 weeks. ]
    fMRI of social simulation task will identify the brain networks that are engaged during a social simulation task (see Thakkar, Peterman and Park. American Journal of Psychiatry. 2014)


Secondary Outcome Measures :
  1. Change in Social Emotion Recognition (BLERT) [ Time Frame: Baseline and 5 weeks. ]
    BLERT (Bell-Lysaker Emotion Recognition Task; Bell et al, 1997). BLERT measures social cognition in people with schizophrenia and it has been reported to have the strongest psychometric properties for use in clinical trials. BLERT presents 21, 10-second video clips to measure the ability to identify seven emotional states: happiness, sadness, fear, disgust, surprise, anger, or no emotion.

  2. Change in Scale for the Assessment of Negative Symptoms (SANS) [ Time Frame: Baseline and 5 weeks. In addition, it will also be used to assess long term outcome 2 months after the training has ended. ]

    SANS is a 25-item clinical symptom rating scale. It consists subscales of alogia, affective blunting, avolition-apathy, anhedonia-asociality, and attentional impairment. (Andreasen, 1983). Each subscale has a single item global score for overall severity of each symptom domain. Each item is rated for severity from least (0) to most severe (5).

    Andreasen NC: Scale for the Assessment of Negative Symptoms (SANS) . Iowa City, University of Iowa, 1983


  3. Change in Scale for the Assessment of Positive Symptoms (SAPS) [ Time Frame: Baseline and 5 weeks. In addition, it will also be used to assess long term outcome 2 months after the training has ended. ]

    SAPS has 34-items that evaluate hallucinations, delusions, formal thought disorder and bizarre behavior (Andreasen, 1984). Each subscale has a single global score item to rate the overall severity of each symptom domain. Each item is rated for severity from least (0) to most severe (rating=5) Andreasen NC: Scale for the Assessment of Positive Symptoms (SAPS) . Iowa City, University of Iowa, 1984

    (NC Andreasen - The British Journal of Psychiatry, 1989)


  4. Change in Social Outcome [ Time Frame: Baseline and 5 weeks. In addition, it will also be used to assess long term outcome 2 months after the training has ended. ]
    Social Functioning Scale (Birchwood, 1990). This is a well validated measure used to assess social functioning. SFS consists of 76 items (7 subscales). Every subscale value is normalized to a Scaled Score (Mean = 100, SD = 15). The SFS full scale score is the mean of the 7 subscales scaled scores. The 7 subscales are: social engagement/withdrawal, interpersonal behavior, pro-social activities, recreation, independence-competence, independence-performance and employment.


Eligibility Criteria
Layout table for eligibility information
Ages Eligible for Study:   18 Years to 65 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Criteria
  1. Inclusion and Exclusion Criteria for Individuals with Schizophrenia:

    Inclusion criteria:

    • DSM-5 Axis 1 Diagnosis of schizophrenia
    • WASI IQ> 90
    • Currently taking antipsychotic medication
    • No change in current psychotropic medications or housing within the past 30 days. Those patients whose medication or housing situation has changed within a month, we will wait list them until their situation stabilizes.

    Exclusion criteria:

    • DSM 5 Axis 1 diagnosis other than schizophrenia
    • Diagnosed organic brain disease, brain lesions, history of head traumas, neurological disorders or other conditions that involve the degeneration of the central nervous system (e.g. multiple sclerosis)
    • Substance/alcohol abuse/dependence during the past 1 year
    • Tardive dyskinesia
  2. Inclusion and Exclusion Criteria for Healthy Control Participants:

Inclusion Criteria:

  • WAIS IQ > 90.
  • No DSM-5 Axis 1 diagnosis of psychotic disorders in themselves or their families (e.g. schizophrenia, bipolar disorder).
  • No antipsychotic medications
  • No diagnosed organic brain disease, brain lesions, history of head traumas, neurological disorders or other conditions that involve the degeneration of the central nervous system (e.g. multiple sclerosis)
  • No substance/alcohol abuse/dependence during the past 1 year
Contacts and Locations

Contacts
Layout table for location contacts
Contact: Sohee Park, Ph.D. 6153220884 sohee.park@vanderbilt.edu
Contact: Lenie Torregrossa, M.Sc. 6153223435 lenie.j.torregrossa@vanderbilt.edu

Locations
Layout table for location information
United States, Tennessee
Vanderbilt University
Nashville, Tennessee, United States, 37240
Sponsors and Collaborators
Vanderbilt University
Investigators
Layout table for investigator information
Principal Investigator: Sohee Park, Ph.D. Vanderbilt University
Tracking Information
First Submitted Date  ICMJE June 26, 2019
First Posted Date  ICMJE July 2, 2019
Last Update Posted Date November 17, 2020
Estimated Study Start Date  ICMJE September 30, 2021
Estimated Primary Completion Date September 30, 2022   (Final data collection date for primary outcome measure)
Current Primary Outcome Measures  ICMJE
 (submitted: July 1, 2019)
  • Change in Social Attention: Social Engagement Latency (SEL) [ Time Frame: Baseline and 5 weeks. ]
    Social engagement latency is defined as the time taken to select an avatar to interact with. SE: is measured in milliseconds. This is the targeted mechanism identified in a previous R21 study.
  • Change in Social Brain Network Activity [ Time Frame: Baseline and 5 weeks. ]
    fMRI of social simulation task will identify the brain networks that are engaged during a social simulation task (see Thakkar, Peterman and Park. American Journal of Psychiatry. 2014)
Original Primary Outcome Measures  ICMJE Same as current
Change History
Current Secondary Outcome Measures  ICMJE
 (submitted: July 1, 2019)
  • Change in Social Emotion Recognition (BLERT) [ Time Frame: Baseline and 5 weeks. ]
    BLERT (Bell-Lysaker Emotion Recognition Task; Bell et al, 1997). BLERT measures social cognition in people with schizophrenia and it has been reported to have the strongest psychometric properties for use in clinical trials. BLERT presents 21, 10-second video clips to measure the ability to identify seven emotional states: happiness, sadness, fear, disgust, surprise, anger, or no emotion.
  • Change in Scale for the Assessment of Negative Symptoms (SANS) [ Time Frame: Baseline and 5 weeks. In addition, it will also be used to assess long term outcome 2 months after the training has ended. ]
    SANS is a 25-item clinical symptom rating scale. It consists subscales of alogia, affective blunting, avolition-apathy, anhedonia-asociality, and attentional impairment. (Andreasen, 1983). Each subscale has a single item global score for overall severity of each symptom domain. Each item is rated for severity from least (0) to most severe (5). Andreasen NC: Scale for the Assessment of Negative Symptoms (SANS) . Iowa City, University of Iowa, 1983
  • Change in Scale for the Assessment of Positive Symptoms (SAPS) [ Time Frame: Baseline and 5 weeks. In addition, it will also be used to assess long term outcome 2 months after the training has ended. ]
    SAPS has 34-items that evaluate hallucinations, delusions, formal thought disorder and bizarre behavior (Andreasen, 1984). Each subscale has a single global score item to rate the overall severity of each symptom domain. Each item is rated for severity from least (0) to most severe (rating=5) Andreasen NC: Scale for the Assessment of Positive Symptoms (SAPS) . Iowa City, University of Iowa, 1984 (NC Andreasen - The British Journal of Psychiatry, 1989)
  • Change in Social Outcome [ Time Frame: Baseline and 5 weeks. In addition, it will also be used to assess long term outcome 2 months after the training has ended. ]
    Social Functioning Scale (Birchwood, 1990). This is a well validated measure used to assess social functioning. SFS consists of 76 items (7 subscales). Every subscale value is normalized to a Scaled Score (Mean = 100, SD = 15). The SFS full scale score is the mean of the 7 subscales scaled scores. The 7 subscales are: social engagement/withdrawal, interpersonal behavior, pro-social activities, recreation, independence-competence, independence-performance and employment.
Original Secondary Outcome Measures  ICMJE Same as current
Current Other Pre-specified Outcome Measures Not Provided
Original Other Pre-specified Outcome Measures Not Provided
 
Descriptive Information
Brief Title  ICMJE Virtual Reality Training for Social Skills in Schizophrenia - Comparison With Cognitive Training
Official Title  ICMJE Physiology-based Virtual Reality Training for Social Skills in Schizophrenia
Brief Summary

Social impairments are core features of schizophrenia that lead to poor outcome. Social skills and competence improve quality of life and protect against stress-related exacerbation of symptoms, while supporting resilience, interpersonal interactions, and social affiliation. To improve outcome, it is necessary to remediate social deficits. Existing psychosocial interventions are moderately effective but the effort-intensive nature (high burden), low adherence, and weak transfer of skills to everyday life present significant hurdles toward recovery. Thus, there is a dire need to develop effective, engaging and low-burden social interventions for people with schizophrenia that will result in better compliance rates and functional outcome.

In a previous pilot study, the investigators tested the effectiveness of a novel adaptive virtual reality (VR) intervention in improving targeted social cognitive function (social attention, as indexed by eye scanning patterns) in individuals with schizophrenia. 10 sessions of 1-hour VR intervention were sufficient to engage the target mechanism of social attention and improve negative symptoms. Acceptability and compliance were very high among the participants. '

The next phase, supported by a R33 grant will compare the VR social skills training with a control condition. This new protocol includes a control condition for the exposure to computerized training across the 10 sessions and incidental exposure to social interactions (i.e. interactions with experimenters twice a week for 5 weeks) by including a control condition, which involves computerized brain fitness training for 10 sessions.

Detailed Description

The effectiveness of the social VR training (n=20) at an optimal dose will be compared with an active control condition (computerized cognitive training) (n=20) in improving social attention (social engagement latency: SEL) and social brain network in a pilot RCT.

Participants with schizophrenia will undergo a baseline assessment of cognition, social functioning, symptoms and social brain network functioning. These behavioral, clinical and neuroimaging (fMRI of social imitation task, and resting state connectivity analyses of the social brain network) methods will be used to assess changes.

Individuals with schizophrenia will be randomized to either the social skills training or the computerized cognitive training at baseline. They will then participate in 10 sessions of social skills VR training or computerized cognitive training (1 hour per session, twice a week for 5 weeks).

In addition, long-term social outcome will be assessed approxinately 2 months after the end of training with the Social Functional Scale (Birchwood, 1991) and the SANS and SAPS for clinical symptoms. For the long-term outcome assessment, no imaging or behavioral assessments will be conducted because the primary goal of the follow-up is to assess broad levels of social functioning in the real world and because there is not sufficient time within the R33 mechanism.

16 matched control participants will be recruited to obtain behavioral and neuroiaging comparison data for optimal performance levels but these healthy control participants will not undergo social skills training.

Lastly, at the end of the R33 project, if this adaptive VR technology shows that it can improve social attention, which in turn improves social outcome in schizophrenia, it will be possible to refine the protocol to make the method more accessible, less burdensome and widely available in the future by moving towards a mobile application.

Study Type  ICMJE Interventional
Study Phase  ICMJE Not Applicable
Study Design  ICMJE Allocation: Randomized
Intervention Model: Parallel Assignment
Intervention Model Description:

Two conditions are compared in individuals with schizophrenia: VR social training and active control condition of computerized cognitive training.

Healthy controls are run on the baseline tasks to provide the comparison data for the patient groups but the controls do not undergo VR training.

Masking: Double (Participant, Outcomes Assessor)
Masking Description:
Participants with schizophrenia and Outcome assessors will be blind to the training condition.
Primary Purpose: Basic Science
Condition  ICMJE
  • Schizophrenia
  • Schizo Affective Disorder
  • Social Skills
Intervention  ICMJE
  • Behavioral: VR social skills training
    Social skills game that we developed in the R21 phase will be used across 10 sessions of training in the lab. Each session is about 1 hour long. Participants come to the lab twice a week for 5 weeks.
  • Behavioral: Cognitive training
    Commercially available brain fitness training program will be used to control for the time spent in the lab and associated social interactions as well as the total exposure to computerized games.
Study Arms  ICMJE
  • Active Comparator: VR Social Skills Training
    Participants will undergo a virtual reality social skills training program for 10 sessions. Each session takes about an hour. Participants visit the lab twice a week. Therefore, the training duration is 5 weeks.
    Intervention: Behavioral: VR social skills training
  • Cognitive training game
    If there is a significant improvement in social skills for the active treatment condition, the reason might be that the participants were exposed to social environment by coming to the lab and interacting with the research staff twice a week for 5 weeks and/or they used a computerized training tool twice a week for 5 weeks. In order to control for these potential confounds, we included a cognitive training arm. Participants will undergo a commercially available brain fitness program (Posit Science) for ten 1-hour sessions (twice a week for 5 weeks).
    Intervention: Behavioral: Cognitive training
  • No Intervention: Healthy Controls
    Healthy controls are recruited to yield comparison data. They do not undergo training.
Publications *
  • Adery LH, Ichinose M, Torregrossa LJ, Wade J, Nichols H, Bekele E, Bian D, Gizdic A, Granholm E, Sarkar N, Park S. The acceptability and feasibility of a novel virtual reality based social skills training game for schizophrenia: Preliminary findings. Psychiatry Res. 2018 Dec;270:496-502. doi: 10.1016/j.psychres.2018.10.014. Epub 2018 Oct 9.
  • Torregrossa LJ, Bian D, Wade J, Adery LH, Ichinose M, Nichols H, Bekele E, Sarkar N, Park S. Decoupling of spontaneous facial mimicry from emotion recognition in schizophrenia. Psychiatry Res. 2019 May;275:169-176. doi: 10.1016/j.psychres.2019.03.035. Epub 2019 Mar 20.
  • Wade J, Nichols HS, Ichinose M, Bian D, Bekele E, Snodgress M, Amat AZ, Granholm E, Park S, Sarkar N. Extraction of Emotional Information via Visual Scanning Patterns: A Feasibility Study of Participants with Schizophrenia and Neurotypical Individuals. ACM Trans Access Comput. 2018 Nov;11(4). pii: 23. doi: 10.1145/3282434.

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Recruitment Information
Recruitment Status  ICMJE Not yet recruiting
Estimated Enrollment  ICMJE
 (submitted: July 1, 2019)
56
Original Estimated Enrollment  ICMJE Same as current
Estimated Study Completion Date  ICMJE September 30, 2023
Estimated Primary Completion Date September 30, 2022   (Final data collection date for primary outcome measure)
Eligibility Criteria  ICMJE
  1. Inclusion and Exclusion Criteria for Individuals with Schizophrenia:

    Inclusion criteria:

    • DSM-5 Axis 1 Diagnosis of schizophrenia
    • WASI IQ> 90
    • Currently taking antipsychotic medication
    • No change in current psychotropic medications or housing within the past 30 days. Those patients whose medication or housing situation has changed within a month, we will wait list them until their situation stabilizes.

    Exclusion criteria:

    • DSM 5 Axis 1 diagnosis other than schizophrenia
    • Diagnosed organic brain disease, brain lesions, history of head traumas, neurological disorders or other conditions that involve the degeneration of the central nervous system (e.g. multiple sclerosis)
    • Substance/alcohol abuse/dependence during the past 1 year
    • Tardive dyskinesia
  2. Inclusion and Exclusion Criteria for Healthy Control Participants:

Inclusion Criteria:

  • WAIS IQ > 90.
  • No DSM-5 Axis 1 diagnosis of psychotic disorders in themselves or their families (e.g. schizophrenia, bipolar disorder).
  • No antipsychotic medications
  • No diagnosed organic brain disease, brain lesions, history of head traumas, neurological disorders or other conditions that involve the degeneration of the central nervous system (e.g. multiple sclerosis)
  • No substance/alcohol abuse/dependence during the past 1 year
Sex/Gender  ICMJE
Sexes Eligible for Study: All
Ages  ICMJE 18 Years to 65 Years   (Adult, Older Adult)
Accepts Healthy Volunteers  ICMJE Yes
Contacts  ICMJE
Contact: Sohee Park, Ph.D. 6153220884 sohee.park@vanderbilt.edu
Contact: Lenie Torregrossa, M.Sc. 6153223435 lenie.j.torregrossa@vanderbilt.edu
Listed Location Countries  ICMJE United States
Removed Location Countries  
 
Administrative Information
NCT Number  ICMJE NCT04005794
Other Study ID Numbers  ICMJE MH106748-R33
Has Data Monitoring Committee Yes
U.S. FDA-regulated Product
Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No
IPD Sharing Statement  ICMJE
Plan to Share IPD: Yes
Plan Description: We are comparing a social skills game in virtual reality with a cognitive training software. After the study is completed, we will make the protocol and the methods available to all those who request this information.
Supporting Materials: Study Protocol
Time Frame: After the study has ended and we have been able to publish the outcome of the study. This is expected to be within 2 years of the completion of the study.
Access Criteria: Interested parties should contact the P.I. by email.
Responsible Party Sohee Park, Vanderbilt University
Study Sponsor  ICMJE Vanderbilt University
Collaborators  ICMJE Not Provided
Investigators  ICMJE
Principal Investigator: Sohee Park, Ph.D. Vanderbilt University
PRS Account Vanderbilt University
Verification Date November 2020

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP