Psychological therapies are effective in reducing irritable bowel syndrome (IBS) symptom severity and increasing quality of life and are recommended for the management of IBS by guidelines. Evidence appears strongest for the efficacy of hypnotherapy as psychological treatment. However, therapist-led interventions are time consuming and relatively costly. Approaches based on e-health are cost saving and appear more attractive to patients as no visits to a therapist are necessary. Therefore, the investigators plan to conduct a multicentre randomised controlled trial to examine whether the effectiveness of online hypnotherapy is non-inferior compared to individual face-to-face hypnotherapy delivered by a therapist, according to current FDA guidelines. Online psychoeducation will be used as control condition. In addition, the investigators hypothesize that treatment with online hypnotherapy is a more cost-effective therapy than face-to-face hypnotherapy in IBS patients.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
282
12 weeks treatment with face-to-face hypnotherapy (6 individual, bi-weekly sessions)
12 weeks treatment with online hypnotherapy
12 weeks treatment with online psychoeducation
Gelderse Vallei
Ede, Gelderland, Netherlands
Maastricht University Medical Center
Maastricht, Limburg, Netherlands
Jeroen Bosch Ziekenhuis
's-Hertogenbosch, North Brabant, Netherlands
Bernhoven
Uden, North Brabant, Netherlands
Medisch Centrum Leeuwarden
Leeuwarden, Provincie Friesland, Netherlands
Martini Ziekenhuis
Groningen, Provincie Groningen, Netherlands
Abdominal pain response rate after 12 weeks of treatment
A responder is defined as a patient who experiences at least a 30 percent decrease in the weekly average of worst daily abdominal pain (measured daily, on an 11 point NRS) compared to baseline weekly average in at least 50 percent of the weeks in which the treatment in given.
Time frame: 12 weeks
Degree of relief response rate after 12 weeks of treatment
A responder is defined as a patient who experiences a weekly relief of 1 or 2 (on a 7 point NRS) in at least 50 percent of the weeks in which treatment is given.
Time frame: 12 weeks
Improvement of symptom severity
determined by the Irritable Bowel Syndrome Symptom Severity Scale (IBS-SSS) by 50 points or more \[IBS-SSS, minimum score 0, maximum score 500\]
Time frame: 16 weeks
Indirect costs
determined by Productivity Cost Questionnaire (PCQ) (savings from increased work productivity)
Time frame: 16 weeks and after 6 months and 1 year follow-up
Direct costs
determined by Medical Consumption Questionnaire (MCQ) (savings from reduced medical resource use)
Time frame: 16 weeks and after 6 months and 1 year follow-up
General Quality of life (by EQ-5D)
Determined by the Euro-Quality of Life - 5 domains (EQ-5D-5L) (change from baseline)
Time frame: 16 weeks and after 6 months and 1 year follow-up
IBS related Quality of life (by IBS-QoL)
Determined by IBS Quality of Life (IBS-QoL) (change from baseline) \[IBS-QoL, minimum score: 0, maximum score 100\]
Time frame: 16 weeks and after 6 months and 1 year follow-up
Use of over the counter medication and rescue medication
As reported via digital diary (mobile phone application)
Time frame: 12 and 16 weeks
Number and severity of side effects
As reported via digital diary (mobile phone application)
Time frame: 12 and 16 weeks
Expectation
Response rates in relation to patient expectation prior to the start of treatment
Time frame: 16 weeks
Response rates in relation to comorbid anxiety
Assessed with the use of the Generalized Anxiety Disorder-7 (GAD-7). \[GAD-7 minimum score: 0, maximum score: 21\]
Time frame: 16 weeks and after 6 months and 1 year follow-up
Response rates in relation to comorbid depression
Assessed with the use of the Patient Health Questionnaire-9 (PHQ-9). \[PHQ-9 minimum score: 0, maximum score: 21\]
Time frame: 16 weeks and after 6 months and 1 year follow-up
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