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Digital Health Applications during the waiting period for outpatient psychotherapy: a randomized controlled trial on effectiveness, acceptance and use

Digital Health Applications during the waiting period for outpatient psychotherapy: a randomized controlled trial on effectiveness, acceptance and use - WL DiGA / RCT DiGA during waiting period for outpatient psychotherapy

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
DRKS
Registry ID
DRKS00039543
Enrollment
300
Registered
2026-03-17
Start date
2026-03-02
Completion date
Unknown
Last updated
2026-03-30

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

Conditions

Clinically relevant depressive symptoms during the waiting period for an outpatient psychotherapy, operationalized by an elevated total score (>=10) in the Patient Health Questionnaire-9 (PHQ-9) Anxiety symptoms operationalized by the GAD-7 General psychological distress operationalized by the SCL-90-R

Interventions

Group 1: Supported Intervention Group (IG-A
n = 100): Participants who are currently on the waiting list for guideline-based outpatient psychotherapy receive access to the digital health application deprexis® for a period of 12 weeks during the
n = 100): Participants currently on the waiting list for guideline-based outpatient psychotherapy who receive access to the digital health application deprexis® for a period of 12 weeks during the wai
n = 100): Participants currently on the waiting list for guideline-based outpatient psychotherapy who receive neither access to a digital health application nor any additional intervention from the im

Sponsors

Psychotherapeutische Praxis Ehrenberg und Kollegen
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: • Currently on the waiting list for psychotherapy of the outpatient clinic Ehrenberg & Kollegen in Wolfsburg, Germany • Clinically relevant depressive symptoms operationalized by an elevated total score on the Patient Health Questionnaire-9 (PHQ-9) • Following an initial psychotherapeutic consultation, the diagnosis of at least one mental disorder according to the ICD-10 is confirmed or suspected, for which outpatient psychotherapy is clinically indicated. • Ability to use digital applications, including sufficient German language skills and reliable internet access • Provision of written informed consent for study participation and for the use of the collected data for scientific purposes

Exclusion criteria

Exclusion criteria: • Acute suicidality • Severe mental disorders for which a purely digital self-help intervention is clinically contraindicated, including: - Psychotic disorders (ICD-10 F20–F29) - Bipolar affective disorders (ICD-10 F30–F31) - Emotionally unstable personality disorder, borderline type (ICD-10 F60.3) • Absence of written informed consent for study participation and for the use of collected data for research purposes

Design outcomes

Primary

MeasureTime frame
Reduction in depressive symptoms, anxiety symptoms, and global psychological distress during the waiting period for outpatient psychotherapy through the use of the DiGA deprexis® under real-world clinical conditions. - Outcomes will be assessed using standardized self-report questionnaires administered at multiple assessment points. Across all trial arms, a baseline assessment will be conducted prior to randomization (T1) and a final assessment will take place after twelve weeks (T4). - In the supported intervention group (IG-A), additional interim assessments are carried out after four weeks (T2) and eight weeks (T3) to record longitudinal change during DiGA use. - In the unsupported intervention group (IG-B), assessments will take place exclusively at baseline (T1) and post-intervention (T4). • In the waitlist control group (CG), assessments will also take place at T1 and T4. Assessment Instruments (Self-Report Questionnaires) • Patient Health Questionnaire-9 (PHQ-9; Kroenke et al., 2001) to assess the severity of depressive symptoms • Generalized Anxiety Disorder Scale-7 (GAD-7; Spitzer et al., 2006) to assess the severity of anxiety symptoms • Symptom Checklist-90-R (SCL-90-R; Derogatis, 1994) to assess global psychological distress and subjective symptom-related functional impairment

Secondary

MeasureTime frame
Acceptance, usage, and dropout patterns during the twelve-week DiGA-intervention period. The following parameters will be assessed: • Acceptance of the DiGA (e.g., user satisfaction, perceived fit, and perceived usefulness) • Usage intensity and adherence (e.g., frequency and extent of engagement) • Dropout rates, including reasons for discontinuation of DiGA-usage • Subjectively perceived effects of and subjectively perceived burden related to the intervention Secondary outcomes are assessed using study-specific standardized self-report questionnaires and structured interviews developed specifically for the study. These study-specific instruments serve scientific purposes and will undergo psychometric evaluation within the study. Exploratory Outcomes • Comparison of supported versus unsupported DiGA utilization with respect to efficacy, adherence, and attrtion • Examination of potential moderators and predictor variables (e.g., sociodemographic characteristics, baseline symptom severity, and attitudes toward digital health applications) • Evaluation of the clinical and healthcare relevance of the DiGA as a bridging intervention during the waiting time for psychotherapy within routine care settings

Countries

Germany

Contacts

Public ContactAnn-Katrin Job

Universität Kassel, Institut für Psychologie, Fachgebiet Klinische Psychologie II

a-k.job@uni-kassel.de+49 561 804-7740

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Apr 4, 2026