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CompletedNCT04756414Updated Apr 8, 2022

Clinical Effectiveness of Exposure Based Cognitive Behavioral Group Therapy for IBS

An interventional study of Exposure based face-to-face Cognitive Behavior Group Therapy in Irritable Bowel Syndrome, sponsored by Karolinska Institutet. Completed. Open to participants aged 16 Years and older. Per ClinicalTrials.gov, last updated 2022-04-08.

Sponsored by Karolinska Institutet · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Registered 12 years 1 month after the study started (first participant enrolled Jan 2009, registered Feb 2021).
Phase
Not applicable
Study type
Interventional
Enrollment
143
Allocation
Not applicable
Ages
16 Years and older
Sex
All
01

Study summary

The aim of the study is to evaluate the effects of a specific Cognitive Behavioral treatment protocol for patients with IBS used in routine care at a gastroenterology unit in Stockholm. The research question is whether the treatment has the same effects in routine care as it has had in efficacy studies.

The treatment is given by licenced psychologists (with CBT training) face-to-face in groups of 4-7 participants and lasts for ten sessions (ten weeks, normally).

Read the detailed description

IBS is a debilitating condition that affects approximately one out of eleven persons world wide. It is often called a functional disorder, a term used to characterize painful conditions, whose biological mechanisms are not fully understood.

Diagnosis is made based on symptoms and exclusion of other conditions rather than specific tests or biological markers.

Treatment usually starts with diet counselling and a change of eating habits. If symptoms persist, a physician can prescribe medication of different types. But for some patients neither change of diet, nor medication is sufficient. Some of these patients may benefit from psychological treatment. There are a few different psychological treatments that have been proven efficacious in clinical trials. Most researched is Cognitive Behavior Therapy (CBT).

Our study is a clinical effectiveness trial without a control group. The data comes from a gastroenterology clinic in Stockholm and is collected as part of the work with continous improvement at the clinic.

Patients with diagnosed IBS are offered group treatment with a specific CBT protocol developed by our research group at Karolinska Institutet. The treatment comprises 6 different modules and stretches over ten sessions. The modules are: 1. Information regarding the treatment, IBS and mindfulness. 2 Hypervigilance and anxiety. 3. Behaviors and thoughts. 4. Behavior change part one - toilet habits including exposure to feared situations. 5. Behavior change part two - exposure to symptoms and avoidance/control behaviors. 6. Summary and relapse prevention.

Group sizes range from 4-7 patients and the treatment is given by licenced psychologists who are employed at the clinic.

02

Conditions studied

  • Irritable Bowel Syndrome

Keywords

  • Cognitive Behavior Therapy, IBS, Group Therapy, Exposure,
03

In context

Irritable Bowel Syndrome

1,062 studies on the registry are indexed under Irritable Bowel Syndrome; 190 are open to participants now.

This study's enrollment of 143 is above the median of 71 across 853 interventional studies indexed under Irritable Bowel Syndrome.

Browse Irritable Bowel Syndrome studies →

Lead sponsor

Karolinska Institutet is the lead sponsor of 1,113 studies on the registry; 267 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
16 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Diagnosed with IBS

Exclusion criteria

Exclusion Criteria:

  • Severe psychiatric condition (for example severe depression, self injuring, psychosis, PTSD)
  • Unable or unwilling to participate in group therapy
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
143 participants (actual)

Study arms

  • Experimental
    Treatment group

    Patients recieve treatment from standard protocol at a gastroenterology unit. No specific adjustments is made for study purposes. Baseline data is collected before treatment and then again after treatment (POST).

    Behavioral: Exposure based face-to-face Cognitive Behavior Group Therapy

Interventions

  • BehavioralExposure based face-to-face Cognitive Behavior Group Therapy

    See under detailed description

06

What researchers measure

Primary outcomes

  1. Gastro-Intestinal Symptom Rating Scale for IBS Gastrointestinal Symptom Rating Scale - IBS version

    Change in gastrointestinal symptoms measured with a self-rating scale from baseline to 10 weeks, and from baseline to 9 months for analysis of effect.The GSRS-IBS have 13 items about weekly gastrointestinal symptoms like bloating, hard stool, abdominal pain etc. It is a seven-point Likert scale from 1 (no discomfort at all) to 7 (very severe discomfort). The GSRS-IBS has excellent psychometric properties with internal consistency between α = .74 (for abdominal pain) to α = .85 (for satiety).

    Time frame: Baseline to 10 veeks

Secondary outcomes

  1. Quality of Life in persons with Irritable Bowel Syndrome (QOL-IBS)

    QOL-IBS consists of 34 items scored between 1 and 6 and the total score is transformed to a 0-100 scale, where 0 represents minimum quality of life and 100 represents maximum quality of life. The IBS-QOL shows high internal consistency (Cronbach's a = .95) and test-retest reliability. r = .86

    Time frame: Baseline to 10 veeks

  2. Visceral Sensitivity Index (VSI)

    VSI is a measure of gastro-intestinal anxiety (i.e., distress, avoidance, and safety behaviors in response to IBS-related stimuli). The VSI contains 15 items, which are scored between 1 and 6, rendering a total score between 0 (minimum GSA) and 75 (maximum GSA). The VSI has demonstrated high internal consistency (Cronbach's a = .90-.92) and has been shown to be associated with symptom severity and diagnostic status of IBS and also to be a mediator of the effect of exposure-based CBT on IBS symptoms.

    Time frame: Baseline to 10 veeks

  3. The Montgomery-Åsberg Depression Rating Scale (MADRS-S)

    MADRS-S consists of 9 items that can be rated between 0 and 6, yielding a result between 0 and 54, where a higher number indicates more severe symptoms of depression. The scale was developed in 1993 and has been widely used. It has demonstrated good psychometric properties with an internal consistency between Cronbach's a = .84-.91

    Time frame: Baseline to 10 veeks

07

Study locations

No study locations are listed for this record.

08

References and documents

Publications

  • Wallen H, Ljotsson B, Svanborg C, Rydh S, Falk L, Lindfors P. Exposure based cognitive behavioral group therapy for IBS at a gastroenterological clinic - a clinical effectiveness study. Scand J Gastroenterol. 2022 Aug;57(8):904-911. doi: 10.1080/00365521.2022.2047220. Epub 2022 Mar 9. PubMed 35260030 ↗

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Apr 8, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04756414
Lead sponsor
Karolinska Institutet
Responsible party
Perjohan Lindfors (Principal investigator, Karolinska Institutet) — Principal investigator
First posted
Feb 16, 2021
Start date
Jan 1, 2009
Primary completion
Dec 31, 2014
Completion
Dec 31, 2014
Last update
Apr 8, 2022

Study contacts

Perjohan Lindfors, PhD, MD
principal investigator · Karolinska Institutet

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Mar 2022. You cannot join it, but the record below documents what was studied.

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