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The goal of this study is to test the effect of a probiotic formulation on gastrointestinal symptoms, gut and small intestine microbiota in participants suffering from small intestinal bacterial overgrowth (SIBO). Two doses of probiotic will be evaluated against placebo.
Full description
The goal of this double-blinded, randomized, placebo-controlled clinical study is to evaluate whether two different doses of a probiotic formulation may have effect on gastrointestinal symptoms, as well as gut and small intestine microbiota, in participats suffering from SIBO. The two probiotic doses will be compared to a placebo.
The main research questions to be answered by this study are related to:
The study will include a 2 month intervention with the investigational products and assessments will be conducted at baseline, mid-intervention, end-of-intervention, and follow-up period, with the exception of SIBO diagnosis, which will be conducted at baseline and at follow-up.
Enrollment
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Inclusion criteria
Exclusion criteria
History of less than three (3) bowel movements per week.
With the diagnosis of IBS-C.
Prior gastrointestinal disease, surgery, or abdominal or pelvic radiation treatment which, in the Investigator's opinion, would lead to intestinal structuring or obstruction with a risk of capsule non-excretion, including, e.g., achalasia, eosinophilic esophagitis, any IBD, or previous esophageal, gastric, small intestinal, or colonic surgery. Appendectomy or cholecystectomy more than 3 months before the screening visit is acceptable.
Persons with central venous catheters.
History of known structural gastrointestinal abnormalities such as structures or fistulas leading to mechanical obstruction.
Known history abdominal radiation treatment.
Use of any medications in the week prior to the screening study visit, unless part of regular treatment, that could substantially alter gastrointestinal motor function (e.g., opioids, anticholinergics, or GLP-1 analogues); laxative use is allowed if used less than 3 times a week and it is willing to keep unchanged in the week prior to the SIMBA capsule ingestions. Proton pump inhibitors (PPIs) are allowed provided a wash-out period of 48 hours is respected before swallowing the SIMBA capsules and PPI treatment is resumed only 4 hours thereafter.
o Prokinetic use. Potential participants who are not using prokinetics to treat SIBO may be eligible after a 2-week washout period, and willing to not use prokinetics for the study duration.
Unable to stop using laxatives or prokinetic medications for 4 days before the study procedure (BT). Laxatives can be resumed after the test is conducted.
Organic motility disorder, including gastroparesis, intestinal pseudo-obstruction, systemic sclerosis, Ogilvie's syndrome.
Celiac disease (treated or untreated).
Any significant heart, liver, lung, kidney, blood, endocrine or nervous system disease, which in the opinion of the investigator, would adversely affect study safety or outcome.
Cancer diagnosis or treatment within the past year (non-melanoma skin cancers are acceptable).
Gastrointestinal inflammatory diseases, including ulcerative colitis, Crohn's disease, microscopic colitis.
Participants with IBS presenting with alarm symptoms such as: rectal bleeding, unexplained weight loss, iron deficiency anemia, and nocturnal symptoms,
Participants over the age of 50 or older who have not had:
Epilepsy diagnosis.
History or diagnosis of immunological diseases, infectious diseases or immune-compromised conditions, which in the opinion of the investigator, would adversely affect study safety or outcome. Such as, but not limited to, hepatitis, tuberculosis, HIV positive, Parkinson's, multiple sclerosis, AIDS, lymphoma, and long-term corticosteroid treatment.
History of oropharyngeal dysphagia, or other swallowing disorder with a risk of capsule aspiration.
Antibiotic use (except for topical use) ≤ 12 weeks prior to screening. Potential participants may be eligible once a 12-week washout is completed.
Regular use of probiotics, prebiotics or synbiotics (including food and drinks containing added probiotics and/or probiotic yogurts with live, active cultures) within 1 month prior to screening. Potential participants may be eligible once a 1-month washout is completed.
Any prior Fecal Microbiota Transplantation.
Pregnant or breastfeeding.
Planning to become pregnant.
Alcohol or drug abuse.
Allergy to the components present in the probiotic and placebo capsules.
Are non-English speaking.
Are scheduled for an MRI at any time during the study. Potential participants may be eligible to participate once their MRI procedure is completed.
Primary purpose
Allocation
Interventional model
Masking
105 participants in 3 patient groups
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Central trial contact
Isaac Wong, MBT; Gwen Duytschaever, PhD
Data sourced from clinicaltrials.gov
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