Document is current

Article History

Received: 6 November 2025

Revised: 21 January 2026

Accepted: 10 March 2026

First Online: 29 April 2026

Declarations

:

: All participants gave their written informed consent and could opt out of the study any time. Study data were de-identified using participant codes for collecting interview and questionnaire data, as well as for access to the intervention. Participants did not receive any financial compensation for taking part in the study.

: AP receives funding within the ITEA project DAIsy (see above), by which BS, AW, LJ and MG are/were funded. AP also receives funding from the state of NRW, the Federal Ministry of Education and Research (BMBF), Horizon2020, Medice, the National Institute for Health and Care Research (NIHR), and the German Research Foundation (DFG). Moreover, she reports serving on advisory boards for Takeda, Medice, and Boehringer, giving sponsored talks for Medice and Takeda, and being the author of books and articles on psychotherapy. NB currently receives public funding from the state NRW and industrial funding from Neurocast. Moreover, in the past he received intramural funding from BONFOR and industrial funding from Medice. In 2021 and 2022, MG worked as a scientific advisor for evaluation studies on digital interventions for chronic pain and sleep disorders as part of projects by the company HelloBetter (GET.ON Institute for Online Health Trainings GmbH). The other authors declare no competing interests.

: The study was conducted in accordance with the Helsinki Declaration as revised in 2013, approved by the University of Bonn’s medical ethics committee (protocol number: 286/23-EP), and preregistered in the German Clinical Trials Register (DRKS00033782; date of registration: March 20, 2024).

: German Clinical Trials Register (https://drks.de/search/en/trial/DRKS00033782).Clinical Trial Number: DRKS00033782.Date of registration: March 20, 2024.