A two-arm, double-blind, randomized, placebo-controlled study investigating the efficacy of a probiotic preparation developed as supportive supplementation of probiotics in patients with reflux. The objective of this trial is to evaluate the effect of the probiotic dietary supplement on the diversity and composition of the gut microbiome in patients diagnosed with GERD who are on PPI therapy. The study will also monitor changes in the oral microbiome and the impact of probiotic supplementation on patient quality of life and GERD symptoms. Patients will take the probiotic preparation, 2 tablets twice daily (morning before meals and evening after meals). The experimental phase will last 6 weeks. Patients in the control arm will receive placebo. Supplementation will be discontinued if adverse effects occur. Oral and rectal swabs will be taken before and after administration of the preparation. Patients will monitor their symptoms using a questionnaire.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
SUPPORTIVE_CARE
Masking
DOUBLE
Enrollment
50
A probiotic dietary supplement containing a blend of probiotic bacteria from the Lactobacillaceae family, and the genera Streptococcus and Bifidobacterium, selected based on the latest knowledge concerning the use of probiotics in relation to GERD.
placebo with the same appearance as the probiotic supplement
University Hospital Olomouc
Olomouc, Czechia
RECRUITINGChange of % of patients with dysbiosis in the gastrointestinal tract caused by the disease itself and/or pharmacotherapy - as assessed by using whole-genome sequencing
Time frame: From enrollment to the end of supplementation at 6 weeks
Change of GERD symptoms assessed by standardized questionnaires - using symptom scores calculated from the data in the questionnaires
Time frame: From enrollment to the end of supplementation at 6 weeks
Evaluation of safety and tolerability of the preparation - prevalence of patient-reported adverse events as recorded in questionnaires
Time frame: From enrollment to the end of supplementation at 6 weeks
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