- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02924493
Dietary Treatment of Endometriosis-related Irritable Bowel Syndrome
Dietary Treatment of Endometriosis-related Irritable Bowel Syndrome: A Pilot Study
Many patients with endometriosis experience extra genital and abdominal symptoms as a major part of their problem. This includes gastrointestinal dysfunction with pain, urinary symptoms compatible with interstitial cystitis and gastrointestinal symptoms resembling the irritable bowel syndrome (IBS). Such problems may be secondary to changes in autonomous neuronal structure and function elicited by the endometriotic elements, which may cause a "visceral syndrome" with the above mentioned symptoms.
The investigators hypothesize that dietary treatment will improve the experience of gastrointestinal symptoms, pain and quality of life in patients with endometriosis-related irritable bowel syndrome. The aim of this first randomized, placebo controlled pilot study investigating patients with both endometriosis and IBS, is to test the application of a low FODMAP diet and a placebo diet for endometriosis-related IBS-like symptoms in order to stablish a platform for a randomized controlled study. Thus, the primary aim of this pilot study is to investigate the applicability of a placebo diet in patients with endometriosis and to investigate the compliance in both intervention group and control group. In addition, the aim is to investigate whether the participants find the diet manageable and whether they are able to identify the placebo diet.
Study Overview
Status
Intervention / Treatment
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
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Aarhus, Denmark
- Aarhus University Hospital
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Signed informed consent
- Age 18-50 years
- Fluid spoken and written Danish
- Diagnosed endometriosis (laparoscopy and/or MR-scan) at least one year ago and sufficient treated regarding medicine and surgery. Participant will be asked to bring a copy of their medical record from the hospital or from www.sundhed.dk to verify the diagnosis.
- Diagnosis of irritable bowel syndrome according to the Rome III criteria. Both previous diagnosis and undiagnosed patients are included, as long as the study group evaluates that the patient meets the Rome III criteria.
- Accept to follow a controlled exclusion diet for all meals for four weeks with only few accepted deviations from the diet.
Exclusion Criteria:
- Premature menopause
- Organic bowel disease (Celiac disease, IBD, bowel endometriosis, malignant disease)
- New therapeutic interventions during study period (medical/lifestyle/psychological). Already ongoing treatment is accepted.
- Psychiatric disorder, psychotropic drugs
- Patients, who the dietician accesses are familiar with low FODMAP diet and therefore is able to identify the placebo diet
- Patients with complicated dietary needs, e.g. severe allergies or intolerances (including lactose and fructose intolerance), athletes, any type of vegetarianism or metabolic diseases
- Pregnancy or planned pregnancy during the study period
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Single
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Low FODMAP diet
This group will follow a exclusion diet called low FODMAP diet, which is a diet with restriction of fermentable carbohydrates.
The patients will be guided on how to avoid some foods and how to include others.
The patients will follow the diet for four weeks.
|
The participants follow the diet in 4 weeks.
They have been provided with some foods (bread, pasta, cereal products), but will by the rest themselves.
They have been provided with lists of foods to include and foods to avoid.
They have also been provided with suggestions to a 4 week meal plan, based in their individual need for energy.
|
Placebo Comparator: Control diet
This group will follow a placebo diet, which is designed to imitate the low FODMAP diet by restricting specific foods.
However, it is randomly selected foods that will be excluded in this diet, so that it works only as a control diet.
The patients in this group will also be guided how to follow the diet for four weeks.
|
The participants follow the diet in 4 weeks.
They have been provided with some foods (bread, pasta, cereal products), but will by the rest themselves.
They have been provided with lists of foods to include and foods to avoid.
They have also been provided with suggestions to a 4 week meal plan, based in their individual need for energy.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Compliance to the diet measured by a self-administered questionnaire with a percentage scale for every meal consumed
Time Frame: four weeks
|
four weeks
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How manageable the participants experience the diet, measured by semi-quantitative questionnaire designed by the study group
Time Frame: four weeks
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four weeks
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Identification of intervention group measured by the question: "What group do you think you were assigned to?"
Time Frame: four weeks
|
four weeks
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Secondary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Gastrointestinal symptoms measured by the questionnaire: The Gastrointestinal symptom rating scale (GSRS) irritable bowel syndrome (IBS) version
Time Frame: four weeks
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four weeks
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IBS related quality of life measured by the questionnaire: Irritable bowel syndrome - Quality of Life
Time Frame: four weeks
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four weeks
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Endometriosis related quality of life measured by the questionnaire: The Endometriosis Health Profile (EHP-30)
Time Frame: four weeks
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four weeks
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Intake of nutrients calculated in by: The Monash University Comprehensive Food Frequency Questionnaire (CNAQ) based on the participants self-reported 7-days food registration
Time Frame: four weeks
|
four weeks
|
Intermenstrual pain measured by VAS scale
Time Frame: four weeks
|
four weeks
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Global symptom relief measured by the question: "Did you have sufficient relief in your IBS-symptoms during the last 7 days?"
Time Frame: four weeks
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four weeks
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Collaborators and Investigators
Sponsor
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- Diet-in-endometriosis
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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