Small intestinal bacterial overgrowth
MONDO:0400000The presence of excessive bacteria in the small intestine that can result from result from failure of the gastric acid barrier, failure of small intestinal motility, anatomic alterations, or impairment of systemic and local immunity.
Also known as: SIBO
23 clinical trials for this condition and its sub-types, 18 tagged with Small intestinal bacterial overgrowth itself.
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Can probiotics boost antibiotic success against gut bacteria overgrowth?
Disease control CompletedThis study looked at whether taking probiotic supplements alongside the antibiotic rifaximin helps people with SIBO feel better. 129 adults with bloating or constipation took either probiotics or a placebo for 3 months. The goal was to see if the combination reduced symptoms and …
Sponsor: Pomeranian Medical University Szczecin • Aim: Disease control
Last updated Jun 27, 2026 08:01 UTC
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Breath test probes hidden link between bloating and gut bacteria
Diagnosis CompletedResearchers are studying whether small intestinal bacterial overgrowth (SIBO) is common in people with abdominal bloating or distension. Adults aged 18 to 70 with these symptoms take a breath test that measures hydrogen and methane in their exhaled air. The study aims to see how …
Sponsor: Shandong University • Aim: Diagnosis
Last updated Sep 19, 2026 00:00 UTC
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Breath test meets x-ray: a new way to pinpoint gut troubles?
Diagnosis CompletedThis study looks at whether combining a lactulose breath test with an abdominal X-ray can more accurately diagnose two common gut conditions: small intestinal bacterial overgrowth (SIBO) and carbohydrate intolerance. The test works by tracking hydrogen in the breath and using an …
Sponsor: Klinik Arlesheim • Aim: Diagnosis
Last updated Aug 22, 2026 00:00 UTC
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Could a daily supplement soothe SIBO? small trial tests safety
Symptom relief CompletedThis pilot study tested an 8-week course of a multi-ingredient nutritional supplement (AV1PD1A) in 9 adults with hydrogen-dominant small intestinal bacterial overgrowth (SIBO). The main goal was to see if the supplement was safe and tolerable. Participants took three capsules dai…
Sponsor: National University of Natural Medicine • Aim: Symptom relief
Last updated Jun 27, 2026 12:31 UTC
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Low FODMAP diet eases gut troubles in SIBO patients
Symptom relief CompletedThis study looked at whether a low FODMAP diet (LFD) can reduce stomach symptoms and improve nutrition in people with small intestinal bacterial overgrowth (SIBO). 51 adults who had finished antibiotic treatment were split into two groups: one followed the LFD, the other ate norm…
Sponsor: Warsaw University of Life Sciences • Aim: Symptom relief
Last updated Jun 27, 2026 09:07 UTC
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Scientists map gut bugs in double infection
Knowledge-focused CompletedThis study looked at 42 adults with both H. pylori infection and small intestinal bacterial overgrowth (SIBO). Researchers used advanced DNA and chemical tests on stool samples to map the types of gut bacteria and their byproducts. The goal was to better understand how these two …
Sponsor: Zhongshan Hospital (Xiamen), Fudan University • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:00 UTC
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Breath test reveals gut bacteria changes after Weight-Loss surgery
Knowledge-focused CompletedThis study looked at how gastric bypass surgery changes the bacteria in the small intestine. Researchers measured hydrogen in the breath of 51 severely obese patients before surgery and at several points up to 2 years after. The goal was to find out how often bacterial overgrowth…
Sponsor: Lille Catholic University • Aim: Knowledge-focused
Last updated Jun 27, 2026 08:06 UTC