Title {1}	Smartphone-assisted guided self-help cognitive behavioral therapy for young people with distressing voices (SmartVoices): Study protocol for a randomized controlled trial
Trial registration {2a and 2b}.	German Clinical Trials Register (DRKS00026243), Registered on 2 September 2021
Protocol version {3}	October 19, 2022; protocol version 1.2
Funding {4}	The study is funded by a grant from the Swiss National Science Foundation (SNSF; PZOOP1_193279 / 1) and a grant from the Ebnet-Foundation in Switzerland.
Author details {5a}	1 University Hospital for Child and Adolescent Psychiatry and Psychotherapy, University of Bern, Bern, Switzerland 2 Centre for Psychotherapy Research, University Hospital Heidelberg, Heidelberg, Germany 3 Department of Clinical Psychology and Psychotherapy, University of Bern, Bern, Switzerland 4 Research & Development Department, Sussex Partnership NHS Foundation Trust, Hove, United Kingdom 5 Department of Child and Adolescent Psychiatry, Center for Psychosocial Medicine, University of Heidelberg, Heidelberg, Germany 6 Department of Psychology, University of Sussex, Brighton, United Kingdom
Name and contact information for the trial sponsor {5b}	Marialuisa Cavelti, University Hospital for Child and Adolescent Psychiatry and Psychotherapy, Bolligenstrasse 111, 3000 Bern 60, Switzerland
Role of sponsor {5c}	The sponsor designed the study and is responsible for the collection, management, analysis, and interpretation of data, writing of the report, and the decision to submit the report for publication.