Internet Treatment for Health Anxiety (HA-X)
Status
Conditions
Treatments
Details and patient eligibility
About
Background
Severe health anxiety, hypochondriasis according to DSM-IV, is common and associated with functional disability. Cognitive behavior therapy (CBT) and behavioral stress management (BSM) have been showed to be effective in the treatment of severe health anxiety. The mechanisms of the treatments are however poorly understood. In addition, effective psychological treatments are accessible to only a few. One prior RCT has shown that internet-based CBT could be effective in comparison to waiting list controls. More studies on internet-based CBT is essential to establish evidence. In addition, few studies with sufficient power have investigated the effect of CBT in comparison to other active treatments.
Aim of the study The aim of the present RCT is to compare internet-based CBT (n=110) to behavioral stress management (n=110) for adult participants with severe health anxiety. BSM is considered a comparison treatment for two reasons: it has been shown to be effective and it lacks exposure and response prevention, which is suggested to be an important mechanism in CBT.
Participants in both treatments are expected to be significantly improved on measures of health anxiety. Participants receiving CBT are expected to be significantly more improved compared to participants receiving BSM.
Full description
Background
Severe health anxiety, hypochondriasis according to DSM-IV, is common and associated with functional disability. Cognitive behavior therapy (CBT) and behavioral stress management (BSM) have been showed to be effective in the treatment of severe health anxiety. The mechanisms of the treatments are however poorly understood. In addition, effective psychological treatments are accessible to only a few. One prior RCT has shown that internet-based CBT could be effective in comparison to waiting list controls. More studies on internet-based CBT is essential to establish evidence. In addition, few studies with sufficient power have investigated the effect of CBT in comparison to other active treatments.
Aim of the study The aim of the present RCT is to compare internet-based CBT (n=110) to behavioral stress management (n=110) for adult participants with severe health anxiety. BSM is considered a comparison treatment for two reasons: it has been shown to be effective and it lacks exposure and response prevention, which is suggested to be an important mechanism in CBT.
The investigators expect participants in both treatments to be significantly improved on measures of health anxiety. Participants receiving CBT are expected to be significantly more improved compared to participants receiving BSM.
Design:
Randomized controlled trial. Participants are randomized in a 1:1 ratio.
Assessments:
The primary outcome measure is the Health Anxiety Inventory (HAI). Assessments with HAI are conducted at baseline, post-treatment, 3- and 12 month follow-up.
Enrollment
Sex
Ages
Volunteers
Inclusion criteria
- A primary diagnosis of severe health anxiety (hypochondriasis) according to DSM-IV
- At least 18 years old
- Able to read and write in Swedish
Exclusion criteria
- Other primary axis-I disorder
- Ongoing substance abuse or addiction
- current or previous episode of psychosis or bipolar disorder
- higher score than 30 on the Montgomery åsberg depression rating scale-self report
- higher than 3 on the suicide item of the MADRS-S
- non-stable antidepressant medication during last 2 months if on this kind of medication
- ongoing concurrent psychological treatment for severe health anxiety
- having received previous high quality CBT during the recent 3 years
- ongoing serious somatic disorder
Trial design
Primary purpose
Allocation
Interventional model
Masking
178 participants in 2 patient groups
Trial contacts and locations
Loading...
Data sourced from clinicaltrials.gov
Clinical trials
Research sites
Resources
Legal