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Effectiveness of a Free smartphone Self-help app (COGITO) to Improve Psychological Well-being in Psychosis: A Randomized Controlled Trial in a Turkish- or German-speaking Sample

Effectiveness of a Free smartphone Self-help app (COGITO) to Improve Psychological Well-being in Psychosis: A Randomized Controlled Trial in a Turkish- or German-speaking Sample - COGITO-Turkey, COGITO-Germany

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
DRKS
Registry ID
DRKS00034847
Enrollment
200
Registered
2024-09-25
Start date
2025-06-01
Completion date
Unknown
Last updated
2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

F20 F22 F25

Interventions

Group 1: The first arm of the study includes the intervention group, which consists of participants with a self-reported psychotic disorder (see: Disease under investigation/health problem). The inte

Sponsors

Universitätsklinikum Hamburg-Eppendorf Klinik und Poliklinik für Psychiatrie und Psychotherapie Forschungsbereich Neuropsychologie und Psychotherapie
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 80 Years

Inclusion criteria

Inclusion criteria: Diagnosis of schizophrenia/psychotic disorder according to self-report; sufficient competence of Turkish or German language; informed consent; presence of internet access and smartphone; willingness to participate in two anonymous online surveys; willingness to participate in the 4-week self-help smartphone app intervention; willingness to use the self-help smartphone app on their own responsibility; willingness to leave an anonymized email address for the survey.

Exclusion criteria

Exclusion criteria: Acute suicidality (measured with the PHQ-9 item 9, cut-off > 2)

Design outcomes

Primary

MeasureTime frame
•The Rosenberg Self-Esteem Scale (RSE) will be used as the primary success parameter to assess the level of self-esteem in the last week (at T0 and T1 after 4 weeks).

Secondary

MeasureTime frame
• The reduction in psychosis symptoms measured with the Psychotic Symptom Rating Scales (PSYRATS) (difference between baseline and post). • The increase in quality of life measured with the global item of the World Health Organization Quality of Life Scale - Brief Version (difference between baseline and post after 4 weeks). • The influence of the intervention on general psychopathological symptoms measured with individual items of the Symptom Check-List Scale (SCL-90) & Generalized Anxiety Disorder Scale (GAD-7), Patient Health Questionnaire (PHQ-9) as well as cognitive insight measured with the Beck Cognitive Insight Scale (BCIS) and internalized stigmatization measured with the short version of the Internatlized Stigma of Mental Illness Inventory (ISMI-9). Further explorations • The influence of treatment expectations and treatment evaluations measured with the Patients’ Therapy Expectation and Evaluation Questionnaire (PATHEV) (only at baseline) on primary and secondary endpoints (especially on the increase in self-esteem, the reduction in psychosis symptoms and the increase in quality of life) and on the duration of adherence to the app • Subjective satisfaction with the app, measured with the "Fragebogen zur Messung der Patientenzufriedenheit" (ZUF-8) and the "Positive und Negative Auswirkungen von Psychotherapie" (PANEPS) (only at post)

Countries

Austria, Germany, Switzerland, Turkey

Contacts

Public ContactEsra Cesur

Universitätsklinikum Hamburg-Eppendorf Klinik und Poliklinik für Psychiatrie und Psychotherapie Forschungsbereich Neuropsychologie und Psychotherapie

esra.cesur@stud.uke.uni-hamburg.de+49 40 7410 56565

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Aug 9, 2026