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Probiotics might be of help in preventing dysbiosis and emergence of SIBO. Gastrus consisted of a mixture of two human strains of L. Reuteri DSM 17938 and ATCC PTA 6475; the first have extensive data supporting its use in gastric infections (18) however, it lacks the anti-inflammatory properties that have been provided by L. Reuteri DSM ATCC PTA 6475 that has excellent acid resistance and has strong anti-inflammatory properties (19); for these reasons, Gastrus is the best candidate for this indication.
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Aim of study
Our aims are to assess if Gastrus administration:
Study Product Gastrus sachets/chewable caps: 2x108 CFU Lactobacillus reuteri DSM 17938 + 2x108 CFU Lactobacillus reuteri ATCC PTA 6475.
Placebo sachets/chewable caps: Identical in shape, colour and taste to Gastrus capsules but without the Lactobacillus reuteri components.
Both study products are delivered in identical containers. Dosing: Two sachets/cps twice a day. Length of treatment: Gastrus or placebo will be administered for all the duration of PPI administration (8 weeks) plus two weeks after its discontinuation. A final evaluation will be performed 4 weeks after the discontinuation of both Gastrus and placebo.
Compliance, PP and ITT To be considered compliant the participant should have consumed at leas 80% of the doses. In order to improve compliance, the participants will be equipped with alarm-devices. Compliant patients will be assessed as Per-Protocol (PP). Patients that are non-compliant will be included in the Intention-To-Treat analysis.
Outcomes Primary efficacy parameter This study aimed at investigating if Gastrus administration prevents the emergence of SIBO and reduces the risk of infections in children treated with proton pump inhibitors and.
Exploratory parameters Ability of Gastrus to prevent and control gut microbiota alteration; Ability of Gastrus to improve GI symptoms for which the drug has been prescribed.
Sample size calculation Assuming that the average rate of infection in patient who assume PPI is 32% as compared to 9% of those who do not use the drug (16), to demonstrate an efficacy of the probiotic, keeping a power of the study of 80% and a p of 0,05 we need 78 patients for group that, considering a drop out of 10%, will became 86 per group (patient younger/older 4 years of age:0,75) This sample size is by far larger than needed to demonstrate the preventive effect on SIBO emergence.
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Inclusion criteria
Age: children between 1 month and 14 years of age;
o We start with children older than 4 years of age.
Necessity of therapy with Proton Pump Inhibitors for Gastroesophageal reflux disease and/or Functional Dyspepsia;
Informed consent obtained.
Exclusion criteria
Primary purpose
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Interventional model
Masking
172 participants in 2 patient groups, including a placebo group
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Central trial contact
ruggiero francavilla, professor
Data sourced from clinicaltrials.gov
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