NCT06186570

Brief Summary

The proposed clinical trial aims to examine the efficacy of an online-based self-help intervention for auditory hallucinations in persons with psychotic disorders. The intervention is primarily based on Metacognitive Training (MKT) and Mindfulness-Based Group Therapy (MBGT). The investigators will utilize a mixed-method study design within a randomized controlled trial. The intervention group will be compared with a waitlist-control group (WL-TAU). Both study conditions are allowed to continue standard scheduled treatment. The aim is to analyze the efficacy of and the subjective satisfaction with the intervention, based on self-report assessments evaluated from baseline (T0) to post-intervention after 6 weeks (T1).

Trial Health

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Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
86

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Jun 2024

Geographic Reach
1 country

1 active site

Status
recruiting

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

First Submitted

Initial submission to the registry

December 5, 2023

Completed
28 days until next milestone

First Posted

Study publicly available on registry

January 2, 2024

Completed
5 months until next milestone

Study Start

First participant enrolled

June 13, 2024

Completed
1.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 15, 2025

Completed
5 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 15, 2025

Completed
Last Updated

June 14, 2024

Status Verified

June 1, 2024

Enrollment Period

1.1 years

First QC Date

December 5, 2023

Last Update Submit

June 13, 2024

Conditions

Keywords

psychotic disordersauditory hallucinationsvoicespsychotherapyself-help

Outcome Measures

Primary Outcomes (1)

  • Frequency and distress of auditory hallucinations, PSYRATS

    The frequency and distress of auditory hallucinations measured by the hallucination subscale of the Psychotic Symptom Rating Scales (PSYRATS). Comparison between the intervention and control group, considering changes from baseline to post-intervention.

    At baseline and post-intervention at week 6 (T1).

Secondary Outcomes (6)

  • Beliefs about voices, BAVQ-R

    At baseline (T0) and post-intervention at week 6 (T1).

  • Hallucinatory experiences, LSHS-R

    At baseline (T0) and post-intervention at week 6 (T1).

  • Negative Symptoms, SNS

    At baseline (T0) and post-intervention at week 6 (T1).

  • Positive and Negative Affect, PANAS

    At baseline (T0) and post-intervention at week 6 (T1).

  • Characteristics of Voices, Thinking Scale

    At baseline (T0) and post-intervention at week 6 (T1).

  • +1 more secondary outcomes

Study Arms (2)

Online-Based Self-Help Intervention

EXPERIMENTAL

The online-based self-help intervention is implemented as a six-week self-help intervention that is primarily based on Metacognitive Training (MKT), Mindfulness-Based Group Therapy (MBGT), and elements of cognitive behavioural therapy. It is conducted online and includes worksheets, audio, and interactive files. Participants work themselves through the intervention, based on their own needs and speed. All participants are allowed to continue parallel implemented standard scheduled treatment (TAU; for a description of TAU, see the section below).

Behavioral: Online-Based Self-Help Intervention

Waitlist-Control Group

NO INTERVENTION

The waitlist control group will not receive any additional intervention but is allowed to continue standard scheduled treatment (WL-TAU). This includes various forms of psychotherapeutic, pharmacologic, psychosocial, online, and other self-help interventions, either carried out individually or within a group. After study completion, participants in the waitlist-control group will equally receive the online-based self-help intervention.

Interventions

See the description above.

Online-Based Self-Help Intervention

Eligibility Criteria

Age18 Years - 75 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • current experience of auditory hallucinations that appear at least once a week (measured over the PSYRATS).
  • diagnosis of a schizophrenia-spectrum disorder according to the Diagnostical and Statistical Manual (5th edition) and/or the International Statistical Classification of Diseases and Related Health Problems (ICD-10), code F2x.x. In case of a suspected diagnosis or missing clinical diagnostic, we will apply the Mini-International Neuropsychiatric Interview (M.I.N.I.).
  • stable psychiatric medication over at least one month, slight changes of dosage are allowed and will be evaluated by a trained psychiatrist.
  • ability to give informed consent.
  • willingness and ability to engage in the psychotherapeutic self-help intervention.
  • availability of a mobile device and internet access.

You may not qualify if:

  • neurological disorders that may affect cognitive functioning and condition after severe traumatic brain injury.
  • acute suicidality, assessed at the previous screening procedures.
  • auditory hallucinations in the context of other primary diagnoses e.g., post-traumatic stress disorder or borderline personality disorder.
  • acute substance abuse other than nicotine and prescribed medication.
  • current electroconvulsive therapy.
  • current inpatient or day-care treatment.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Charité - Universitätsmedizin Berlin, Campus Benjamin Franklin

Berlin, 12203, Germany

RECRUITING

MeSH Terms

Conditions

Psychotic DisordersHallucinations

Condition Hierarchy (Ancestors)

Schizophrenia Spectrum and Other Psychotic DisordersMental DisordersPerceptual DisordersNeurobehavioral ManifestationsNeurologic ManifestationsNervous System DiseasesSigns and SymptomsPathological Conditions, Signs and Symptoms

Central Study Contacts

Kerem Böge, PD Dr. Dr.

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: A randomized controlled trial with a parallel group design is used. The intervention group will receive the online-based self-help intervention immediately after the baseline assessment (T0), while the waitlist-control group will receive the online-based self-help intervention after study completion at T1. Both study conditions are allowed to continue standard scheduled treatment.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

December 5, 2023

First Posted

January 2, 2024

Study Start

June 13, 2024

Primary Completion

July 15, 2025

Study Completion

December 15, 2025

Last Updated

June 14, 2024

Record last verified: 2024-06

Data Sharing

IPD Sharing
Will not share

Locations