Internet-based indicated prevention of anxiety and depression disorder onset three-arm randomized clinical trial

Zarski AC, Weisel K, Berger T, Krieger T, Schaub MP, Berking M, Görlich D, Jacobi C, Baños R, Botella C, Herrero R, Ebert DD (2025)


Publication Type: Journal article

Publication year: 2025

Journal

Book Volume: 8

Article Number: 589

Journal Issue: 1

DOI: 10.1038/s41746-025-01990-8

Abstract

Preventing mental disorders is important to avoiding clinical conditions. This study evaluated the efficacy of internet-based indicated prevention for anxiety and depressive disorders. In a three-arm randomized controlled trial, 566 adults with subthreshold anxiety (GAD-7 ≥ 5) and/or depressive symptoms (CES-D ≥ 16), but no clinical diagnosis in the past six months (MINI 6.0), were assigned to either an individually (IG-IMI, n = 186) or automatically (AG-IMI, n = 189) guided digital intervention, or waitlist control (WLC, n = 191). The digital intervention comprised 8 transdiagnostic, self-tailored, CBT-based sessions. The primary outcome was time to onset of any anxiety or depressive disorder over 12 months, assessed via blinded diagnostic interviews (MINI). AD/DD onset was 19.4% in IG-IMI, 14.8% in AG-IMI, and 30.9% in WLC. Cumulative incidence was 23.1% (IG-IMI), 20.7% (AG-IMI), and 36.0% (WLC; p < 0.001). Hazard ratios were 0.59 and 0.47; NNTs were 7.76 and 5.79. Both individually guided and automated interventions effectively reduced AD/DD incidence. Trial Registration: The study was preregistered in the German Clinical Trial Registration (DRKS00011099; https://drks.de/search/de/trial/DRKS00011099).

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How to cite

APA:

Zarski, A.C., Weisel, K., Berger, T., Krieger, T., Schaub, M.P., Berking, M.,... Ebert, D.D. (2025). Internet-based indicated prevention of anxiety and depression disorder onset three-arm randomized clinical trial. npj Digital Medicine, 8(1). https://doi.org/10.1038/s41746-025-01990-8

MLA:

Zarski, Anna Carlotta, et al. "Internet-based indicated prevention of anxiety and depression disorder onset three-arm randomized clinical trial." npj Digital Medicine 8.1 (2025).

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