Skip to content

The Effects of High-dose Dual Therapy With Probiotics on Gut Microbiota for Helicobacter Pylori Rescue Treatment

The Effects of High-dose Dual Therapy Combined With Probiotics on Gut Microbiota for Helicobacter Pylori Rescue Treatment: A Prospective, Multicenter, Randomized Trial

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06292546
Enrollment
72
Registered
2024-03-05
Start date
2024-01-31
Completion date
2025-02-28
Last updated
2025-05-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Gut Microbiota, Helicobacter Pylori Eradication, Metabolic Disturbance

Keywords

Helicobacter pylori, Eradication, Vonoprazan, Amoxicillin, Gut microbiota

Brief summary

The aim of this study was to evaluate the effects of High-dose Dual therapy combined with probiotics on the gut microbiota for Helicobacter pylori rescue treatment.

Detailed description

The combination of vonoprazan (VPZ) and amoxicillin (VA therapy) has been shown to achieve notable eradication rates for Helicobacter pylori (H. pylori). Patients who receive this treatment are prone to adverse reactions, such as diarrhea, abdominal distention. We plan to combine probiotic with the above treatment. However, it is not clear what changes in gut microbiota and metabolism may result from this therapy.

Interventions

DRUGVonoprazan

Group A: vonoprazan 20 mg bid + amoxicillin 0.75 g qid for 14 days, followed by 2 doses of bacillus subtilis enteric-coated capsules for 14 days. Group B: vonoprazan 20 mg bid + amoxicillin 0.75 g qid+ 2 doses of bacillus subtilis enteric-coated capsules for 14 days. Group C: 2 doses of bacillus subtilis enteric-coated capsules for 14 days, followed by vonoprazan 20 mg bid + amoxicillin 0.75 g qid for 14 days. Group D: vonoprazan 20 mg bid + amoxicillin 0.75 g qid for 14 days.

DRUGAmoxicillin

Group A: vonoprazan 20 mg bid + amoxicillin 0.75 g qid for 14 days, followed by 2 doses of bacillus subtilis enteric-coated capsules for 14 days. Group B: vonoprazan 20 mg bid + amoxicillin 0.75 g qid+ 2 doses of bacillus subtilis enteric-coated capsules for 14 days. Group C: 2 doses of bacillus subtilis enteric-coated capsules for 14 days, followed by vonoprazan 20 mg bid + amoxicillin 0.75 g qid for 14 days. Group D: vonoprazan 20 mg bid + amoxicillin 0.75 g qid for 14 days.

DRUGBacillus subtilis enteric-coated capsules

Group A: vonoprazan 20 mg bid + amoxicillin 0.75 g qid for 14 days, followed by 2 doses of bacillus subtilis enteric-coated capsules for 14 days. Group B: vonoprazan 20 mg bid + amoxicillin 0.75 g qid+ 2 doses of bacillus subtilis enteric-coated capsules for 14 days. Group C: 2 doses of bacillus subtilis enteric-coated capsules for 14 days, followed by vonoprazan 20 mg bid + amoxicillin 0.75 g qid for 14 days. Group D: vonoprazan 20 mg bid + amoxicillin 0.75 g qid for 14 days.

Sponsors

Zhongshan Hospital (Xiamen), Fudan University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* Age from 18 to 65 years; * H.pylori infection diagnosed by 13C-urea breath test; * A period of more than two months since the last eradication therapy for H. pylori; * Patients who had previously failed 2 or more eradication regimens.

Exclusion criteria

* Allergy to any of the medications; * Zollinger-Ellison syndrome, GC, Upper gastrointestinal bleeding, or Active peptic ulcer; * Coexistence of significant concomitant illnesses, including heart disease, renal failure, hepatic disease, previous abdominal surgery, lactation, or pregnancy; * Patients who had used probiotics, vonoprazan, and antibiotics in the past 12 weeks; * Unwillingness to participate in this study.

Design outcomes

Primary

MeasureTime frameDescription
Gut Microbiotaday 0, day 44 (or 58), day 104 (or 118)Diversity and Compositional Analysis of Gut Microbiota is tested by Metagenomics.

Secondary

MeasureTime frameDescription
Fecal Metabolitesday 0, day 44 (or 58), day 104 (or 118)Fecal metabolites is tested by Gas Chromatography-Mass Spectrometry Analysis.
Eradication rateday 44 or day 58Eradication rate of H pylori, presenting with negative results on the 13C-UBT test.
Frequency of the adverse eventsday 44 or day 58Incidence rate of the adverse events, including dyspepsia, nausea, vomiting, abdominal pain, bloating, diarrhea, dizziness, headache, skin rash, fatigue and fever.
Compliance rate of the drugsday 44 or day 58Compliance is defined as good when they had taken more than 80% of the total medication.
Small intestinal bacterial overgrowthday 0, day 44 (or 58), day 104 (or 118)Small intestinal bacterial overgrowth is tested by Hydrogen-Methane Breath.

Countries

China

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026