Gastroesophageal Reflux
Conditions
Keywords
infant, ppi, proton pump inhibitor, microbiome, Microbiota
Brief summary
Proton Pump Inhibitors (PPI) are standard in the therapy of pediatric GERD. In the past it has been hypothesized, that either direct inhibition of bacterial ATPase or elevation of the pH may lead to changes in the intestinal microbiome. Small series published in adults suggest a predominance of streptococci, a possible reason for increased incidences of pneumonia under PPI therapy. Studies in children are yet scarce. This study will include 20 infants. GERD will be verified by 24h-intraluminal impedance monitoring. All patients will have undergone conservative measures prior to initiation of PPI therapy (due to persisting symptoms). Children will receive a commercial PPI for 8 weeks (esomeprazole 1mg/kg/day). Stool samples will be collected before initiation of PPI, under PPI (4 weeks after initiation) and 8 weeks after discontinuing PPI therapy. The intestinal microbiome will be determined by 16S rDNA-based microbial community profiling by high-throughput pyrosequencing. Data will be compared by dependent non parametric test (Wilcoxon). P-values \<0.05 will be considered statistically significant.
Interventions
PPI therapy (medication has FDA approval) for 8 weeks in children with proven GERD. The medication used (esomeprazole) in this trial is approved by the FDA
Stool sample will be obtained before initiation of PPI (before PPI therapy)
Sponsors
Study design
Intervention model description
Longitudinal study
Eligibility
Inclusion criteria
symptomatic GERD (proved by impedance monitoring) despite conservative treatment requiring PPI therapy
Exclusion criteria
neurological impairments
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| microbial community profiling of stool to include: rate [or prevalence] of specific phyla [i.e. Proteobacteria and Firmicutes], contributing to fecal microbial communities | 16 weeks | The change of intestinal microbiota under PPI therapy will be examined. |
Countries
Austria