Verbal Memory Training Using Virtual Reality in Schizophrenia

April 13, 2023 updated by: Synthia Guimond, The Royal Ottawa Mental Health Centre
Verbal episodic memory is an independent declarative memory system associated with language and is responsible for storage and conscious recall of previous personal experiences. Verbal episodic memory is impaired in schizophrenia and is related to patients' functional outcomes. Because no medication has shown clear positive effects on verbal memory impairment in schizophrenia, there is a great need to find effective cognitive remediation treatments (CRT) that could improve this domain in this psychiatric population. Although CRT programs have shown small to moderate positive effects on verbal memory in individuals with schizophrenia, traditional lab-based computerised cognitive interventions have notable attrition rates. In recent years, along with the advancement of technology, the development of Virtual Reality (VR) has allowed the possibility for new training techniques. Previous studies have established the initial feasibility and safety of using VR in schizophrenia population. However, no studies have examined the feasibility, safety and efficacy of combining VR technology with verbal memory training among individuals with schizophrenia. Thus, in this study, we will adapt an exercise from the Strategy for Semantic Association Memory (SESAME; (Guimond et al., 2018; Guimond & Lepage, 2016) training to a VR environment. We aim to determine the feasibility of using virtual reality in the context of a cognitive remediation intervention and to assess the initial efficacy of our verbal memory training on the use of semantic encoding strategies in people with schizophrenia. We also aim to assess participants' experience and tolerability of the VR training.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

In this study, participants will first undergo the Hopkins Verbal Learning Test - Revisited (HVLT-R) to assess the baseline use of semantic clustering and verbal memory recall performance. Participants will then be randomly assigned to either a control group or a verbal training group. Participants in both groups will undergo a short session (15 minutes) of VR training. Finally, participants will be invited to perform an alternate version of the HVLT-R to assess initial change in semantic clustering and verbal memory recall performance after the training. They will also complete the VR Experience Questionnaire and the simulator sickness questionnaire (SSQ) in order for the research team to gain feedback from participants regarding their experience and tolerability of the VR session.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
30

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Canada
    • Ontario
      • Ottawa, Ontario, Canada, K1Z 7K4
        • Royal Ottawa Mental Health Centre

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

20 years to 60 years (Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • age 20-60 years
  • the ability to read and speak fluent English
  • having a diagnosis of schizophrenia or schizoaffective from a psychiatrist and confirmed by the Mini International Neuropsychiatric Interview (M.I.N.I) interview
  • considered clinically stable (on stable medication for more than one month, and have a score below 95 on the Positive and Negative Syndrome Scale (PANSS))

Exclusion Criteria:

  • having vision problems that cannot be corrected with contact lenses or glasses that fit into the VR goggles (because of requirements of VR headset)
  • having significant neurological or medical disorders (other than schizophrenia/schizoaffective disorder) that may produce cognitive impairment
  • a recent history of substance abuse or dependence (within the past 3 months)
  • decisional incapacity requiring a guardian
  • having past or current conditions of seizure, epilepsy, migraines or cybersickness

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Cognitive Intervention
Behavioral: Cognitive Intervention
Participants will undergo 15 minutes of a cognitively challenging activity in the Virtual Reality environment. (More details about each condition will be added after study completion to protect the blinding of our participants).
Active Comparator: Active Control Intervention
Behavioral: Active Control Intervention
Participants will undergo 15 minutes of a cognitively challenging activity in the Virtual Reality environment. (More details about each condition will be added after study completion to protect the blinding of our participants).

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Change in semantic encoding strategy use as measured by change in semantic clustering from baseline - the Hopkins Verbal Learning Test - Revisited (HVLT-R).
Time Frame: baseline, post treatment (~20 minutes)
The Hopkins Verbal Learning Test - Revisited (HVLT-R) for verbal memory is a 12-item test to measure a person's ability to encode, combine, store and recover verbal information in memory.
baseline, post treatment (~20 minutes)
Feasibility of the intervention
Time Frame: baseline, post treatment (~20 minutes)
Feasibility of the intervention as measured by the number of people who complete the intervention.
baseline, post treatment (~20 minutes)

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Change in verbal memory performance from baseline
Time Frame: baseline, post treatment (~20 minutes)
The Hopkins Verbal Learning Test - Revisited (HVLT-R) for verbal memory is a 12-item test to measure a person's ability to encode, combine, store and recover verbal information in memory.
baseline, post treatment (~20 minutes)
Participants' experience and tolerability - VR experience questionnaire
Time Frame: post treatment (~20 minutes)
VR experience questionnaire is a 5-item questionnaire that our research team designed to obtain feedback from participants regarding their experience with the VR intervention following the completion of the VR session.
post treatment (~20 minutes)
Participants' experience - Simulator sickness questionnaire (SSQ)
Time Frame: post treatment (~20 minutes)
Simulator sickness questionnaire (SSQ) is a 16-item questionnaire developed to examine the degree of cybersickness in participants after the use of VR.
post treatment (~20 minutes)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
The Royal Ottawa Mental Health Centre

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
February 12, 2019

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
February 17, 2023

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
February 17, 2023

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
January 27, 2020

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 29, 2020

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
January 31, 2020

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
April 14, 2023

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 13, 2023

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
April 1, 2023

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 2018048

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

De-identified data collected from this study may be shared with other researchers at the Royal's Institute of Mental Health Research for analyses and re-analyses. Variables of the study and scripts used for analyses will be made available to the public. De-identified data will also be shared with the general public upon request. Data that can connect with participants' identity will NOT be used or shared for analyses.

IPD Sharing Time Frame

De-identified data will become available upon completion of the study and once results have been published in an academic journal (anticipated time frame: the year of 2021).

IPD Sharing Supporting Information Type

  • SAP
  • ANALYTIC_CODE

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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