Effectiveness of ICBT for Severe Health Anxiety in Clinical Psychiatry.

Status Completed

Clinical Trial Summary

The aim of this study is to evaluate the clinical effectiveness of internet-based cognitive therapy for severe health anxiety within regular psychiatric care. A longitudinal cohort study will be conducted investigating 400 patients who have received ICBT for severe health anxiety between 2018-2020 in an outpatient psychiatric clinic providing Internet-based treatment. The primary outcome measure will be the Short Health Anxiety Inventory, SHAI, and a within-group design with repeated measures will be used for primary analysis. It is hypothesized that ICBT will be associated with a significant reduction in health anxiety as measured with SHAI, both after treatment and at six-month follow-up.

Clinical Trial Description

Severe health anxiety is a prevalent disorder, leading to considerable distress and is associated with high societal costs. Internet-based cognitive behaviour therapy is a method to improve access to evidence-based psychological treatments and it has shown to be efficacious in the treatment of severe health anxiety in several randomized controlled trials. However, there is limited knowledge of its effectiveness and application in clinical psychiatric care. The aim of this study is to evaluate the clinical effectiveness of internet-based cognitive therapy for severe health anxiety within regular psychiatric care. The investigators will conduct at a cohort-study with a pretest-posttest design investigating consecutively recruited patients from May 2018 to April 2021 in an outpatient psychiatric clinic specialised in delivering ICBT. The treatment content has been successfully tested in previous efficacy studies and will be delivered during 13 weeks. The primary outcome measure will be the gold standard SHAI and a within-group design with repeated measures will be used in the primary analysis. It is estimated that 400 patients will receive treatment during this period and thus be included in the study, if consenting. It is hypothesized that ICBT will be associated with a significant reduction in health anxiety as measured with SHAI, both after treatment and at six-month follow-up. The effect size is expected to be somewhat smaller than in research trials but still moderate to large (d > 0.5). ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT04921280
Study type	Observational
Source	Karolinska Institutet
Contact
Status	Completed
Phase
Start date	April 1, 2018
Completion date	March 15, 2021

View Details

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