The purpose of this study is to determine whether psychotherapy (based on exposure techniques) is effective in the treatment of functional somatic symptoms (FSS)/Somatoform Disorders (as exemplified here in subjects with globus sensations in the throat).
Functional somatic symptoms (FSS) and somatoform disorders are characterized by the presence of medically unexplained symptoms. They are among the most prevalent disorders in the general medical setting, leading to individual suffering and having huge impact on public health alike. Unfortunately, many patients still remain untreated and not all patients get better, even when receiving currently proposed treatments. The aim of the present project is twofold: First, we want to improve the understanding of risk factors and psychobiological processes leading to the development of FSS. Second, we will explore and evaluate new ways of treating subjects with FSS. Within the project, we will examine subjects with globus sensations in the throat, a very common und impairing form of FSS. The proposed study i) may provide insight into the development of FSS, thereby improving our way by which we recognize and diagnose subjects with FSS, and ii) may help fostering our understanding of how to better treat subjects suffering from FSS.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
175
Application of different types of exposure-based psychotherapeutic interventions (behavioral therapy), adapted for subjects with somatic symptoms (Somatoform Disorders/Functional Somatic Syndromes)
Progressive muscle relaxation (Jacobson)
University of Basel
Basel, Switzerland
Clinical Global Impression Scale - indirect (change from baseline)
German version
Time frame: Baseline, after waiting period (an expected average of 8 weeks after baseline), post-therapy (expected average of 16 weeks after baseline)
Glasgow-Edinburgh Throat Scale (change from baseline)
German version
Time frame: Baseline, after waiting period (exp. average of 8 weeks after baseline), post-therapy (exp. average of 16 weeks after baseline), Follow-up 1 (exp. average of 6 months after post-therapy), Follow-up 2 (exp. average of 24 months after post-therapy)
Functional Esophageal Disorder Module Interview (change from baseline)
German version
Time frame: Baseline, after waiting period (exp. average of 8 weeks after baseline), post-therapy (exp. average of 16 weeks after baseline), Follow-up 1 (exp. average of 6 months after post-therapy), Follow-up 2 (exp. average of 24 months after post-therapy)
Screening for somatoform disorder (SOMS-7) (change from baseline)
Time frame: Baseline, after waiting period (exp. average of 8 weeks after baseline), post-therapy (exp. average of 16 weeks after baseline), Follow-up 1 (exp. average of 6 months after post-therapy), Follow-up 2 (exp. average of 24 months after post-therapy)
Acceptance & Action Questionnaire (AAQ-II)
German version
Time frame: Baseline, after waiting period (exp. average of 8 weeks after baseline), post-therapy (exp. average of 16 weeks after baseline), Follow-up 1 (exp. average of 6 months after post-therapy), Follow-up 2 (exp. average of 24 months after post-therapy)
Fragebogen zu Körper und Gesundheit (FKG-SSAS)
Time frame: Baseline, after waiting period (exp. average of 8 weeks after baseline), post-therapy (exp. average of 16 weeks after baseline), Follow-up 1 (exp. average of 6 months after post-therapy), Follow-up 2 (exp. average of 24 months after post-therapy)
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Daily Symptom Exposure Interview
German version
Time frame: Baseline, after waiting period (exp. average of 8 weeks after baseline), post-therapy (exp. average of 16 weeks after baseline), Follow-up 1 (exp. average of 6 months after post-therapy), Follow-up 2 (exp. average of 24 months after post-therapy)
Hospital Anxiety and Depression Scale
German version
Time frame: Baseline, after waiting period (exp. average of 8 weeks after baseline), post-therapy (exp. average of 16 weeks after baseline), Follow-up 1 (exp. average of 6 months after post-therapy), Follow-up 2 (exp. average of 24 months after post-therapy)
Positive and Negative Affect Scale
Time frame: Baseline, after waiting period (exp. average of 8 weeks after baseline), post-therapy (exp. average of 16 weeks after baseline), Follow-up 1 (exp. average of 6 months after post-therapy), Follow-up 2 (exp. average of 24 months after post-therapy)
Sheehan Disability Scale
German version
Time frame: Baseline, after waiting period (exp. average of 8 weeks after baseline), post-therapy (exp. average of 16 weeks after baseline), Follow-up 1 (exp. average of 6 months after post-therapy), Follow-up 2 (exp. average of 24 months after post-therapy)
Whiteley Index
German version
Time frame: Baseline, after waiting period (exp. average of 8 weeks after baseline), post-therapy (exp. average of 16 weeks after baseline), Follow-up 1 (exp. average of 6 months after post-therapy), Follow-up 2 (exp. average of 24 months after post-therapy)
Salivary Cortisol Awakening Response
Time frame: Baseline, after waiting period (exp. average of 8 weeks after baseline), post-therapy (exp. average of 16 weeks after baseline)
DNA-methylation
Time frame: Baseline, after waiting period (exp. average of 8 weeks after baseline), post-therapy (exp. average of 16 weeks after baseline)
Questions on adverse/side effects
Time frame: Baseline, after waiting period (exp. average of 8 weeks after baseline), post-therapy (exp. average of 16 weeks after baseline), Follow-up 1 (exp. average of 6 months after post-therapy), Follow-up 2 (exp. average of 24 months after post-therapy)
psychophysiological reaction after symptom-relevant stimulus exposure
Time frame: Baseline, after waiting period (exp. average of 8 weeks after baseline), post-therapy (exp. average of 16 weeks after baseline)