About this trial
The purpose of this Phase IIa study is to identify the most effective antibiotic regimen to treat small intestine bacterial overgrowth (SIBO) in impoverished Bangladeshi children.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Positive glucose hydrogen breath test (GHBT)
Weight-for-age Z score > -1
Length-for-age Z score > -1
Disqualifiers
Presence of known chronic or congenital illness, including developmental delay
Presence of acute gastrointestinal illness in the preceding 14 days
Antibiotic use in the preceding 14 days
Previous adverse reaction to any of the three study medications or other drugs in the same antibiotic classes
Trial design
Parallel
Treatments tested in this trial
Trimethoprim-sulfamethoxazole (TMP/SMX)
Drug8-10 mg/kg/day divided every 12 hours, with a maximum 160 mg/dose; dosing based on Trimethoprim
Metronidazole
DrugAdministered alone: 20-30 mg/kg/day divided every 8 hours, with a maximum 750 mg/dose Co-administered with Trimethoprim-sulfamethoxazole: 35-50 mg/kg/day divided every 8 hours, with a maximum 750 mg/dose
Amoxicillin-Clavulanate (4:1 formulation)
Drug20-40 mg amoxicillin/kg/day divided every 8 hours, with maximum daily dose of 1,500 mg
Treatment groups
Trial outcomes
Primary outcomes
Conversion to Glucose Hydrogen Breath Test (GHBT) Negativity at Day 15
GHBT negativity will be defined as no breath hydrogen value ≥20 ppm over the patient's baseline during the course of the test. If any breath hydrogen value during the GHBT is \>20 ppm over the patient's baseline, the test will be deemed positive.
Secondary outcomes
Conversion to GHBT Negativity at Day 45
GHBT negativity will be defined as no breath hydrogen value ≥20 ppm over the patient's baseline during the course of the test. If any breath hydrogen value during the GHBT is \>20 ppm over the patient's baseline, the test will be deemed positive.
Average Glucose Hydrogen Breath Test Area Under the Curve
Area under the hydrogen curve will be calculated at baseline, day 15, and day 45. An average of these values will be taken to construct this variable.
Fecal Myeloperoxidase
Fecal myeloperoxidase levels as measured by a commercially available ELISA kit.
Fecal Neopterin
Fecal neopterin levels as measured by a commercially available ELISA kit.
Sponsors and contacts
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University of Virginia
Lead sponsor
National Institutes of Health (NIH)
Collaborator
International Centre for Diarrhoeal Disease Research, Bangladesh
Collaborator
Virginia Commonwealth University
Collaborator
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
Collaborator