Management of Irritable Bowel Syndrome in Primary Care (MIBS Trial)

NCT ID: NCT00934973

Last Updated: 2021-04-30

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE4

Total Enrollment

135 participants

Study Classification

INTERVENTIONAL

Study Start Date

2010-04-30

Study Completion Date

2011-10-31

Brief Summary

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Aims:

1. To pilot an randomized, controlled trial (RCT) to assess the effectiveness of the commonly prescribed medications in UK general practice for IBS: mebeverine (anti-spasmodic) and methylcellulose (bulking-agent) and of the patient CBT based self-management website.
2. To assess the level of support needed for patients using the patient CBT based self-management website for IBS (i.e., initial 30 minute telephone support session with a nurse and email support or not).

Detailed Description

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Background:

Irritable bowel syndrome (IBS) affects 10-22% of the United Kingdom (UK) population, with National Health Service (NHS) costs over £200 million a year. Abdominal pain, bloating and altered bowel habit affect quality of life, social functioning and time off work. Current general practitioner (GP) treatment relies on a positive diagnosis, reassurance, lifestyle advice and drug therapies, but many suffer ongoing symptoms.

A recent Cochrane review highlighted the lack of research evidence for IBS drugs. Neither GPs, nor patients have good evidence to inform prescribing decisions. However, IBS drugs are widely used: NHS costs 2005 of nearly £10 million for mebeverine and over £8 million for fiber-based bulking agents.

Cognitive behavioral therapy (CBT) and self-management can be helpful, but poor availability in the NHS restricts its use. Development of web-based CBT could increase access without increased costs.

Plan of Investigation:

135 patients aged 16-60 years with IBS symptoms fulfilling the Rome III criteria, recruited via GP practices, will be randomised to: mebeverine, methylcellulose or placebo for 6 weeks and to the CBT based website with a nurse telephone session and email support, website with minimal support, or no website, thus creating 9 groups.

Outcomes: Irritable bowel symptom severity scale and IBS-QOL will be measured at baseline, 6 and 12 weeks. An intention to treat analysis will be undertaken by analysis of covariance (ANCOVA) for a factorial trial.

Potential Impact:

Development of a web-based self-management CBT program for IBS developed in partnership with patients has the potential to benefit large numbers of patients with low cost to the NHS. CBT has been shown to be of benefit for IBS but it's availability is limited due to the high cost and therapist time required for face-to-face CBT. A website can be accessed at a time and place convenient to the patient and the CBT program undertaken at a pace determined by patient needs. The website could be used as a long term support for self-management.

Determining the effectiveness of commonly used drug treatments will help patients and doctors in making informed treatment decisions regarding the drug management of IBS symptoms, enabling better targeting of treatment to those who may benefit.

Conditions

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Irritable Bowel Syndrome

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

FACTORIAL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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mebeverine + no website

Mebeverine 135mg tds for 6 weeks

Group Type ACTIVE_COMPARATOR

mebeverine

Intervention Type DRUG

overencapsulated mebeverine 135 mg tds for 6 weeks

No website

Intervention Type BEHAVIORAL

No CBT website

methylcellulose + no website

methylcellulose 3 tablets twice a day for 6 weeks

Group Type ACTIVE_COMPARATOR

methylcellulose

Intervention Type DRUG

overencapsulated methylcellulose 3 tablets bd for 6 weeks

No website

Intervention Type BEHAVIORAL

No CBT website

placebo + no website

placebo tablets

Group Type PLACEBO_COMPARATOR

placebo

Intervention Type DRUG

overencapsulated placebo tablets 1 tds for 6 weeks

No website

Intervention Type BEHAVIORAL

No CBT website

mebeverine + CBT website minimal support

mebeverine 135mg tds and access to website

Group Type ACTIVE_COMPARATOR

mebeverine

Intervention Type DRUG

overencapsulated mebeverine 135 mg tds for 6 weeks

CBT website with minimal support

Intervention Type BEHAVIORAL

methylcellulose + CBT website

methylellulose 3 tablets twice a day and access to website

Group Type ACTIVE_COMPARATOR

methylcellulose

Intervention Type DRUG

overencapsulated methylcellulose 3 tablets bd for 6 weeks

CBT website with minimal support

Intervention Type BEHAVIORAL

placebo + CBT website minimal support

placebo tablets and access to website

Group Type PLACEBO_COMPARATOR

placebo

Intervention Type DRUG

overencapsulated placebo tablets 1 tds for 6 weeks

CBT website with minimal support

Intervention Type BEHAVIORAL

mebeverine + CBT website with support

mebeverine 135mg tds and access to website with nurse support session

Group Type ACTIVE_COMPARATOR

mebeverine

Intervention Type DRUG

overencapsulated mebeverine 135 mg tds for 6 weeks

CBT website with support

Intervention Type BEHAVIORAL

cognitive behavioral therapy with nurse telephone session and email support

methylcellulose + CBT website support

methylcellulose 3 tablets twice a day and access to website with nurse support

Group Type ACTIVE_COMPARATOR

methylcellulose

Intervention Type DRUG

overencapsulated methylcellulose 3 tablets bd for 6 weeks

CBT website with support

Intervention Type BEHAVIORAL

cognitive behavioral therapy with nurse telephone session and email support

placebo + CBT website with support

placebo tablets and access to website with nurse support

Group Type PLACEBO_COMPARATOR

placebo

Intervention Type DRUG

overencapsulated placebo tablets 1 tds for 6 weeks

CBT website with support

Intervention Type BEHAVIORAL

cognitive behavioral therapy with nurse telephone session and email support

Interventions

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mebeverine

overencapsulated mebeverine 135 mg tds for 6 weeks

Intervention Type DRUG

methylcellulose

overencapsulated methylcellulose 3 tablets bd for 6 weeks

Intervention Type DRUG

placebo

overencapsulated placebo tablets 1 tds for 6 weeks

Intervention Type DRUG

CBT website with support

cognitive behavioral therapy with nurse telephone session and email support

Intervention Type BEHAVIORAL

No website

No CBT website

Intervention Type BEHAVIORAL

CBT website with minimal support

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* Patients aged 16 to 60 years with symptoms of irritable bowel syndrome that fulfill the Rome III criteria

Exclusion Criteria

* Atypical symptoms (unexplained weight loss, rectal bleeding)
* Diagnosis of inflammatory bowel disease, coeliac disease or peptic ulcer disease
* Pregnant or breast feeding
* Currently taking or allergy to mebeverine or methylcellulose
Minimum Eligible Age

16 Years

Maximum Eligible Age

60 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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National Institute for Health Research, United Kingdom

OTHER_GOV

Sponsor Role collaborator

Hazel Everitt

OTHER

Sponsor Role lead

Responsible Party

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Hazel Everitt

Principal Investigator

Responsibility Role SPONSOR_INVESTIGATOR

Principal Investigators

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Hazel A Everitt, MBChB

Role: PRINCIPAL_INVESTIGATOR

University of Southampton

Locations

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University of Southampton

Southampton, Hampshire, United Kingdom

Site Status

Countries

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United Kingdom

References

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Everitt H, Moss-Morris R, Sibelli A, Tapp L, Coleman N, Yardley L, Smith P, Little P. Management of irritable bowel syndrome in primary care: the results of an exploratory randomised controlled trial of mebeverine, methylcellulose, placebo and a self-management website. BMC Gastroenterol. 2013 Apr 21;13:68. doi: 10.1186/1471-230X-13-68.

Reference Type RESULT
PMID: 23602047 (View on PubMed)

Everitt HA, Moss-Morris RE, Sibelli A, Tapp L, Coleman NS, Yardley L, Smith PW, Little PS. Management of irritable bowel syndrome in primary care: feasibility randomised controlled trial of mebeverine, methylcellulose, placebo and a patient self-management cognitive behavioural therapy website. (MIBS trial). BMC Gastroenterol. 2010 Nov 18;10:136. doi: 10.1186/1471-230X-10-136.

Reference Type RESULT
PMID: 21087463 (View on PubMed)

Other Identifiers

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2009-013426-16

Identifier Type: EUDRACT_NUMBER

Identifier Source: secondary_id

5953

Identifier Type: -

Identifier Source: org_study_id

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