NCT04631939

Brief Summary

The project aims to evaluate the efficacy of a therapeutic video game that incorporates elements from metacognitive training on delusions and jumping-to-conclusions in patients with psychotic disorders.

Trial Health

47
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
36

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Jun 2021

Typical duration for not_applicable

Geographic Reach
2 countries

2 active sites

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

November 5, 2020

Completed
12 days until next milestone

First Posted

Study publicly available on registry

November 17, 2020

Completed
7 months until next milestone

Study Start

First participant enrolled

June 1, 2021

Completed
2.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2023

Completed
Last Updated

May 10, 2023

Status Verified

May 1, 2023

Enrollment Period

2.5 years

First QC Date

November 5, 2020

Last Update Submit

May 8, 2023

Conditions

Keywords

Psychotic disordersDelusionsMetacognitive TrainingSchizophrenia

Outcome Measures

Primary Outcomes (1)

  • Change of delusion severity

    Item P1 of the Positive and Negative Syndrome Scale (PANSS). Min score = 1, max score = 7, where lower scores indicate better outcome.

    Change from pre- to post-intervention (4 weeks)

Secondary Outcomes (4)

  • Change of total PANSS Score

    Change from pre- to post-intervention (4 weeks)

  • Change of delusional conviction

    Change from pre- to post-intervention (4 weeks)

  • Fish Task: change of number of draws to decision

    Change from pre- to post-intervention (4 weeks)

  • Fish Task: change of probability threshold to decision

    Change from pre- to post-intervention (4 weeks)

Study Arms (2)

study intervention

EXPERIMENTAL

The intervention consists of a puzzle adventure game, in which players have to explore the fantasy world "Macu'ta". The puzzles are based on Metacognitive Training for Psychosis (MCT), an intervention using playful, entertaining exercises to increase awareness of reasoning biases in patients and 'sow the seeds of doubt' through corrective ('aha!') experiences. The tasks will address reasoning biases associated with the emergence and maintenance of delusions.

Device: Metacognitive training game

control intervention

SHAM COMPARATOR

The control intervention consists of a puzzles focused exclusively on dexterity and accuracy.

Device: Control games

Interventions

In the fantasy world "Macu'ta", players explore the world by walking around with an avatar in order to find the puzzles and proceed in the game. The intervention consists of 4 different puzzles. Unbeknownst to the player, the first pieces of evidence of each puzzle are often misleading, i.e. indicate the wrong solution, such that hasty decisions are punished. Players receive immediate feedback and are shown the correct response after submitting their solution, as well as explicit cues that educate them on the value of making adequately informed decisions. The order of the puzzles is fixed for each player, but different per session.

study intervention

In the fantasy world "Macu'ta", players explore the world by walking around with an avatar in order to find the puzzles and proceed in the game. The control intervention consists of 4 different puzzle games requiring exclusively dexterity and accuracy (i.e., not including any metacognitive elements). The order of the puzzles is fixed for each player, but different per session.

control intervention

Eligibility Criteria

Age18 Years - 40 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • aged between 18 and 40
  • diagnosis of a psychotic disorder and current delusions or a history of delusions

You may not qualify if:

  • Language skills insufficient for assessments
  • IQ \< 70
  • Secondary psychotic disorders that are clearly induced by general medical conditions or substance use.
  • Previous participation in meta-cognitive training for psychosis

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Center for Integrative Psychiatry Lübeck

Lübeck, Schleswig-Holstein, 23538, Germany

NOT YET RECRUITING

University Psychiatric Clinics Basel

Basel, Canton of Basel-City, 4055, Switzerland

RECRUITING

MeSH Terms

Conditions

SchizophreniaPsychotic DisordersDelusions

Condition Hierarchy (Ancestors)

Schizophrenia Spectrum and Other Psychotic DisordersMental DisordersBehavioral SymptomsBehavior

Study Officials

  • Christina Andreou, PD Dr.

    University of Basel

    PRINCIPAL INVESTIGATOR
  • Stefan Borgwardt, Prof. Dr.

    University of Luebeck

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Christina Andreou, PD. Dr.

CONTACT

Renate de Bock, MSc

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

November 5, 2020

First Posted

November 17, 2020

Study Start

June 1, 2021

Primary Completion

December 1, 2023

Study Completion

December 1, 2023

Last Updated

May 10, 2023

Record last verified: 2023-05

Data Sharing

IPD Sharing
Will share

All data we will be published on Zenodo under CC0 license.

Shared Documents
STUDY PROTOCOL
Time Frame
All data will be made openly accessible one year after the study end.
Access Criteria
will be determined at a later time

Locations