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Low FODMAP Plus PEG 3350 for the Treatment of Patients with Irritable Bowel Syndrome-Constipation

RecruitingNAAges 18 Years - anyAllUniversity of Michigan
NCT03687814 on ClinicalTrials.gov ↗
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In plain words

What the trial is, and whether it could suit you

Consecutive patients with Irritable Bowel Syndrome with Constipation (IBS-C) will be recruited from the outpatient clinics of the University of Michigan Health System. Eligible patients will be asked to participate in a study that will test the efficacy the PEG 3350 + a diet low in fermentable oligo, di, monosaccharides, and polyols (FODMAP) vs. PEG 3350 plus sham diet. Blinding dietary advice trials is challenging and therefore the sham diet was based on the criteria set forth by Staudacher et al. which emphasizes that the diet must give the impression that is the true intervention diet with similar restrictions, modifications, and time intensity without impacting the intake of essential nutrients, fiber, and FODMAPs. An example of the sham diet's carbohydrates includes: apples, bananas, and pears, and wheat. Oranges, raspberries, strawberries and rice would not be allowed. Additionally

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📋 Eligibility rules (as published)
Inclusion Criteria: 1\. Subjects aged 18 and older meeting the Rome IV criteria for IBS-C\*: • Recurrent abdominal pain, on average, at least 1 day/week in the last 3 months, associated with two or more of the following: 1. related to defecation 2. associated with a change in the frequency of stool (reduction of stools) 3. associated with a change in the form of stool (hard or lumpy stools) AND \>25% hard stools and \<25% loose stools \* Criteria fulfilled for the last 3 months Exclusion Criteria: * any other IBS subtype other than IBS-C * \>3 spontaneous bowel movements during the last 7 days of run-in * Have cognitive dysfunction or unable to understand or provide written informed consent * Pregnancy (evaluated by self-report) * Comorbid medical problems that may affect gastrointestinal transit or motility: * Inflammatory bowel disease * Extra-intestinal disease known to affect the gastrointestinal system (i.e., scleroderma, unstable thyroid disease, etc.) * Severe renal or hepatic disease * Previous abdominal surgery other than appendectomy, cholecystectomy, and gynecologic/urologic surgery if performed more than six months prior to enrollment * Previous treatment with the low FODMAP diet under a dietician guidance * Concurrent medications not permitted including probiotics, antibiotics, prescription or over-the-counter medication for IBS, and narcotics * New antidepressant use (less than 3 months on stable dose) * Active participation in another form of dietary therapy
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What it tests

  • Low FODMAP diet/PEG 3350
  • sham diet/PEG 3350
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Where

1 site
University of Michigan
Ann Arbor, United States
🤝 Taking part is your choice, and you can leave at any time. Only the trial team can confirm you are eligible — always decide together with your own doctor.
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