Design
RECRUITMENT
This was a 3-site, single-masked, randomized superiority trial comparing a 12-week, therapist-guided IERITA delivered adjunctive to TAU with TAU only for adolescents with NSSID and their parents. The trial was conducted within the Child and Adolescent Mental Health Services (CAMHS) in Stockholm, Västra Götaland, and Skåne in Sweden. Recruitment took place from November 20, 2017, to April 9, 2020. The primary end point was 1 month after treatment. Participants were followed up 3 months after treatment (ended January 2021). Participants randomized to TAU only were offered IERITA after the 3-month follow-up. We followed the Consolidated Standards of Reporting Trials (