Effectiveness and safety of an interactive internet-based intervention to improve insomnia: Results from a randomised controlled trial
Corresponding Author
Anja Specht
GAIA, Hamburg, Germany
Correspondence
Anja Specht, GAIA, Hamburg, Germany.
Email: [email protected]
Contribution: Conceptualization, Methodology, Project administration, Writing - review & editing, Writing - original draft, Investigation
Search for more papers by this authorLinda T. Betz
GAIA, Hamburg, Germany
Contribution: Data curation, Writing - review & editing, Formal analysis, Visualization
Search for more papers by this authorAntje Riepenhausen
GAIA, Hamburg, Germany
Contribution: Writing - review & editing, Writing - original draft
Search for more papers by this authorKamila Jauch-Chara
Universitätsklinikum Schleswig-Holstein, Campus Kiel, Klinik für Psychosomatik und Psychotherapie, Christian-Albrechts Universität, Kiel, Germany
Contribution: Writing - review & editing
Search for more papers by this authorGitta A. Jacob
GAIA, Hamburg, Germany
Contribution: Writing - review & editing, Conceptualization, Methodology, Supervision
Search for more papers by this authorDieter Riemann
Department für Psychiatrie und Psychotherapie, Universitätsklinik Freiburg, Medizinische Fakultät, Universität Freiburg, Freiburg, Germany
Contribution: Writing - review & editing
Search for more papers by this authorRobert Göder
Universitätsklinikum Schleswig-Holstein, Campus Kiel, Klinik für Psychiatrie und Psychotherapie, Christian-Albrechts Universität, Kiel, Germany
Contribution: Writing - review & editing, Supervision, Conceptualization, Methodology
Search for more papers by this authorCorresponding Author
Anja Specht
GAIA, Hamburg, Germany
Correspondence
Anja Specht, GAIA, Hamburg, Germany.
Email: [email protected]
Contribution: Conceptualization, Methodology, Project administration, Writing - review & editing, Writing - original draft, Investigation
Search for more papers by this authorLinda T. Betz
GAIA, Hamburg, Germany
Contribution: Data curation, Writing - review & editing, Formal analysis, Visualization
Search for more papers by this authorAntje Riepenhausen
GAIA, Hamburg, Germany
Contribution: Writing - review & editing, Writing - original draft
Search for more papers by this authorKamila Jauch-Chara
Universitätsklinikum Schleswig-Holstein, Campus Kiel, Klinik für Psychosomatik und Psychotherapie, Christian-Albrechts Universität, Kiel, Germany
Contribution: Writing - review & editing
Search for more papers by this authorGitta A. Jacob
GAIA, Hamburg, Germany
Contribution: Writing - review & editing, Conceptualization, Methodology, Supervision
Search for more papers by this authorDieter Riemann
Department für Psychiatrie und Psychotherapie, Universitätsklinik Freiburg, Medizinische Fakultät, Universität Freiburg, Freiburg, Germany
Contribution: Writing - review & editing
Search for more papers by this authorRobert Göder
Universitätsklinikum Schleswig-Holstein, Campus Kiel, Klinik für Psychiatrie und Psychotherapie, Christian-Albrechts Universität, Kiel, Germany
Contribution: Writing - review & editing, Supervision, Conceptualization, Methodology
Search for more papers by this authorSummary
Many adults suffer from insomnia. Cognitive-behavioural therapy for insomnia is the recommended treatment option, but access to it is not readily available. Digital interventions have the potential to close the treatment gap by offering scalable and cost-efficient options. The present randomised controlled trial aimed at investigating the effectiveness and safety of somnovia, an interactive internet-based intervention for patients with insomnia. A total of 290 participants with chronic insomnia were randomised to intervention (n = 149) or the control (n = 141) condition. Participants of the intervention group received access to somnovia for 6 months in addition to treatment as usual, whereas participants in the control group only had access to treatment as usual for the time of the study. Online questionnaires were filled in before randomisation and after 3 and 6 months. The primary endpoint was the Insomnia Severity Index, with the Patient Health Questionnaire-9, the Generalised Anxiety Disorder Assessment-7, and the Work and Social Adjustment Scale as secondary endpoints. After 3 months, the intervention group showed lower insomnia (Cohen's d = 0.71, CI = [0.44, 0.98]), depressive (Cohen's d = 0.66, CI = [0.41, 0.90]), and anxiety (Cohen's d = 0.56, CI = [0.32, 0.81]) symptoms, as well as improved overall functioning (Cohen's d = 0.50, CI = [0.24, 0.76]) compared with participants in the control group. The effects stayed stable after 6 months. The results indicate that next to a therapeutic effect on insomnia symptoms, somnovia might potentially help to prevent the onset of other psychiatric disorders such as depression and anxiety.
CONFLICT OF INTEREST STATEMENT
AS, LTB, AR, and GAJ are employees of GAIA, the developer, owner, and distributor of somnovia.
Open Research
DATA AVAILABILITY STATEMENT
The data that support the findings of this study are available from the corresponding author upon reasonable request.
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