Plain English Summary
Background and study aims
Irritable Bowel Syndrome (IBS) is characterised by abnormal bowel function with symptoms such as diarrhoea, constipation, bloating and abdominal pain. IBS is more prevalent in women (14%) than men (6.6%). Patients with IBS frequently report a poor quality of life and demonstrate high levels of time off work. IBS is a significant burden on health care resources, with IBS patients consuming over 50% more resources than a matched group of people. Furthermore, IBS and its symptoms have a significant impact on daily activities and body image, and are a source of worry to patients.
50-90% of IBS patients have a co-existing psychological condition such as anxiety and depression. The presence of psychological conditions is associated with more persistent and severe symptoms, increased time off work and a greater need for specialist referral. Patients with IBS and psychological co-morbidities currently receive medical management aimed at bowel symptom control and the regulation of gastrointestinal motility. The provision of psychological interventions for treating anxiety and depression in patients with IBS within the NHS are rare.
There is a growing body of evidence to support the use of Cognitive Behavioural Therapy (CBT) for improving the outcomes of patients with IBS. CBT is costly and therapists who offer IBS speciality clinics are rare. There is a need for further research regarding the use of psychological therapies for IBS which should focus on developing psychological interventions which address concerns relating to cost and treatment accessibility. This feasibility study will evaluate the proposed methods for the evaluation of a novel, nurse-delivered model of CBT as a treatment option for IBS and will also provide information for running a follow-on trial.
Who can participate?
Adult male and female patients diagnosed with Irritable Bowel Syndrome with and without associated anxiety and depression.
What does the study involve?
Participants are randomly allocated to one of four treatments:
1. High intensity cognitive behavioural therapy delivered by a psychotherapist
2. Guided self-help cognitive behavioural therapy delivered by a registered nurse
3. Self-help treatment delivered in the form of self-help materials without therapist support
4. Treatment as usual
What are the possible benefits and risks of participating?
Some participants who are allocated to the intervention groups of the study may experience an improvement in irritable bowel syndrome symptoms or may develop better ways of coping with their condition. It is anticipated that participants will not experience side effects from any treatment used within this study.
Where is the study run from?
This is a single-centre study taking place at the Queens Medical Centre Campus of Nottingham University Hospitals NHS Trust, Derby Road, Nottingham, NG7 2UH, UK.
When is the study starting and how long is it expected to run for?
The study will start recruitment in January 2014 for a period of about 20 months.
Who is funding the study?
The study is jointly funded by the University of Nottingham and the NIHR Nottingham Digestive Diseases Biomedical Research Unit, UK.
Who is the main contact?
Andrew David Dainty
Mr Andrew Dainty
NIHR Nottingham Biomedical Research Unit
University Of Nottingham
E Floor West Block
Queen's Medical Centre Campus
Sponsor Ref: 13127
A mixed methods feasibility study to evaluate the use of low-intensity, nurse-delivered cognitive behavioural therapy in the treatment of irritable bowel syndrome
Nurse-delivered, low-intensity cognitive behavioural therapy may be a feasible method for the delivery of cognitive behavioural interventions used in the treatment of irritable bowel syndrome.
Nottingham 2 REC, 05/12/2013, REC ref: 13/EM/0428
Mixed methods feasibility randomised controlled trial with concurrent qualitative interviews
Primary study design
Secondary study design
Randomised controlled trial
Patient information sheet
Not available in web format, please use the contact details below to request a patient information sheet
Irritable Bowel Syndrome
Participants in each of the study conditions will have measures taken at baseline and at 12 and 26 weeks post randomisation. Participants will be randomly allocated to one of four treatment conditions as described below.
1. High-intensity cognitive behavioural therapy consisting of 12 hours of weekly treatment sessions with a cognitive psychotherapist. Therapy will be delivered in accordance with the methods developed by Toner et al. (2000).
2. Low-intensity cognitive behavioural therapy delivered by a registered nurse consisting of a 1-hour initial assessment session and five 30-minute sessions of therapy. Participants will work through six treatment modules supported by self-help materials consisting of: psychoeducation, relaxation techniques, the cognitive model of stress, applying the cognitive model to IBS, avoidance and exposure, diet and IBS. The six treatment modules used within this arm of the study are an adapted version of the treatment protocol originally developed by Hunt et al. (2009) at the University of Pennsylvania, USA.
3. Self-help. Participants will work through six modules of self-help materials consisting of: psychoeducation, relaxation techniques, the cognitive model of stress, applying the cognitive model to IBS, avoidance and exposure, diet and IBS. The six treatment modules used within this arm of the study are an adapted version of the treatment protocol originally developed by Hunt et al. (2009) at the University of Pennsylvania, USA. Participants in this treatment condition will not receive therapist support.
4. Treatment as usual control. Participants in this treatment condition will receive the usual care of their hospital gastroenterologist and general practitioner as indicated by current best practice guidance.
Hunt, M., Moshier, S. and Milonova, M. (2009) Brief cognitive-behavioral internet therapy for irritable bowel syndrome. Behaviour Research and Therapy 47(9): pp. 797-802.
Toner, B., Segal, Z., Emmott, S. and Myran, D. (2000) Cognitive-behavioral treatment of irritable bowel syndrome: The brain-gut connection. New York: Guilford Press.
Primary outcome measure
Gastrointestinal Symptom Rating Scale for IBS (IBS-GSRS) measured at baseline, 12 weeks and 26 weeks post randomisation.
Secondary outcome measures
1. Irritable Bowel Syndrome Quality of Life Instrument (IBS-QOL)
2. Generalised Anxiety Disorder Assessment (GAD 7)
3. Patient Health Questionnaire (PHQ-9)
Measured at baseline, 12 weeks and 26 weeks post randomisation.
Overall trial start date
Overall trial end date
Reason abandoned (if study stopped)
Participant inclusion criteria
1. Adult male and female patients aged 18 years or older at the time of enrolment
2. Documented medical diagnosis of IBS with symptom onset at least six months prior to recruitment (in order to fulfil Rome criteria at screening)
3. Able to read, write and speak the English language
4. Able to provide written informed consent
5. Patients with and without concomitant antidepressant use
6. Not currently taking part in other research studies
7. Able to commit to weekly treatment sessions within the intervention arms of the study
Target number of participants
Participant exclusion criteria
1. Already receiving psychological therapy or hypnotherapy
2. Existing diagnosis of bowel disease based on endoscopic or histologic criteria (i.e., Crohn's disease, ulcerative colitis, coeliac disease)
3. Presence or history of structural or surgical diseases of the GI tract (not including appendix or gall bladder surgery)
4. Evidence of alcohol or substance misuse
5. An established cause for bowel symptoms other than IBS (i.e., medication use)
6. The presence of suicidal ideation (current intent/plans/actions) or self-harm (current intent/plans/actions).
7. Significant psychiatric co-morbidity (schizophrenia, bipolar disorder, obsessive-compulsive disorder [OCD])
Recruitment start date
Recruitment end date
Countries of recruitment
Trial participating centre
NIHR Nottingham Biomedical Research Unit
University of Nottingham
Funding Body Type
private sector organisation
Funding Body Subtype
NIHR Nottingham Biomedical Research Unit and Digestive Diseases Centre (UK)
Funding Body Type
Funding Body Subtype
Results and Publications
Publication and dissemination plan
To be confirmed at a later date
Intention to publish date
Participant level data
Available on request
Basic results (scientific)
2014 protocol in: http://www.ncbi.nlm.nih.gov/pubmed/24939813
Dainty AD, Fox M, Lewis N, Hunt M, Holtham E, Timmons S, Kinsella P, Wragg A, Callaghan P, A mixed methods feasibility study to evaluate the use of a low-intensity, nurse-delivered cognitive behavioural therapy for the treatment of irritable bowel syndrome., BMJ Open, 2014, 4, 6, e005262, doi: 10.1136/bmjopen-2014-005262.