KATHY:Cognitive-behavioural Therapy for Hypochondriasis

Study Overview
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Brief Summary
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The purpose of this study was to examined if psychotherapy is an effecitive treatment for hypochondriasis.

Detailed Description
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Background: The central feature of hypochondriasis is preoccupation or fear of having a serious disease based on misinterpretation of bodily signs. Psychotherapeutic treatments have developed with focus on different aspects of the condition. Several controlled trials have examined the effectiveness of different treatment strategies. Hypothesis: Hypochondriasis is accessible for treatment. Specific cognitive treatment focused on misinterpretation of bodily sensations is more effective than short-term non-specific psychodynamic psychotherapy. Method: Patients with hypochondriasis were randomisation to cognitive behavioural therapy (CBT), psychodynamic psychotherapy, or waiting list. Patients on waiting list were subsequently randomised to CBT or dynamic psychotherapy. The patients received six-teen sessions over a period of six month. Follow-up assessments were made six and twelve month after treatment.

Official Title
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Cognitive-behavioural Therapy Versus Short-term Psychodynamic Psychotherapy: a Randomised Clinical Trial

Conditions
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Hypochondriasis

Intervention / Treatment
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* Behavioral: Cognitive behavioral psychotherapy


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: (1) age between 18 and 65 years, (2) Danish as native language, (3) fulfilment of the ICD-10 research criteria for hypochondriasis (3), (4) health anxiety to a significant degree: a score more than 17 on the health anxiety inventory (HAI) (5). - Exclusion Criteria: (1) current psychotic condition, (2) current substance abuse, (3) a medical condition which demanded immediate treatment, (4) psychopharmacological treatment initiated or increased during the last 6 weeks before treatment, and (5) previous cognitive behavioural treatment. -

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 65 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: CBT<br>The cognitive behavioural treatment developed by Salkovskis, Warwick and co-workers was used, with adaptations for the specific setting. | Behavioral: Cognitive behavioral psychotherapy<br> <br> |
| Experimental: STPP<br>The short-term psychodynamic psychotherapy (STPP). | Behavioral: Cognitive behavioral psychotherapy<br> <br> |
| Experimental: Waiting List<br>Patients in the waiting-list group were asked to keep in touch with their GP, who had been informed of the trial in writing. The patients and their GPs were instructed not to begin any other treatment during the study period. After 6 months, the patients on the waiting list were re-evaluated for inclusion and exclusion criteria and, if they still met the criteria, re-randomized to CBT or STPP. | Behavioral: Cognitive behavioral psychotherapy<br> <br> |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Two primary outcome measures were included 0, 6 and 12 month after treatment: the Health Anxiety Inventory (HAI), which is an 18-item, self-report questionnaire and the Hamilton Anxiety Rating Scale (HAM-A). |  |  | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Several secondary outcome measures were included 0, 6 and 12 month after treatment: Beck Depression Inventory (BDI), Beck Anxiety Inventory (BAI), Hamilton Rating Scale for Depression (HAM-D) and Global Assessment Functioning (GAF). |  |  |