Oral Antibiotic Treatment of Helicobacter Pylori Reduces Intestinal Colonization Rates With Oxalobacter Formigenes

Completed

• Conditions: Nephrolithiasis

• Registration Number: NCT01300039
• Lead Sponsor: VA New York Harbor Healthcare System

Brief Summary

The investigators are finding out if giving antibiotics for Helicobacter pylori will eliminate colonization of the colon by Oxalobacter formigenes.

Detailed Description

Background and objectives: Oxalobacter formigenes (OF) may play a protective role in preventing calcium oxalate stones. Intestinal colonization by OF is associated with reduced urinary oxalate excretion. Exposure to antibiotics may be an important factor contributing to variable rates of colonization. This is the first prospective study to evaluate the effect of antibiotics on OF colonization.

Design, setting, participants, \& measurements: The effect of antibiotics on OF colonization was compared in 2 groups: a group receiving antibiotics for gastric infection with Helicobacter pylori (HP) and a group without HP that not receiving antibiotics. OF colonization in stool was detected by oxalate degradation at baseline and after 1 and 6 months.

Study Timeline

• Study Start: 2003-01
• Primary Completion: 2008-06
• Study Completion: 2008-06
• Status Verified: 2011-02
• Study First Submitted: 2011-02-18
• Study First Submitted QC: 2011-02-18
• Last Update Submitted: 2011-02-18
• Study First Posted: 2011-02-21
• Last Update Posted: 2011-02-21

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 50

Inclusion Criteria

• age 18-80 years old
• undergoing upper endoscopy
• H. pylori present or absent on gastric histology
• stool positive for Oxalobacter formigenes

Exclusion Criteria

• unable to consent
• stool negative for Oxalobacter formigenes

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified