Vancomycin for the Treatment of NAAT(+)/Toxin(-) C. Difficile

Clostridium Difficile Infection Clinical Trial

Official title: Randomized Double Blind Placebo Controlled Trial for the Treatment of NAAT(+)/Toxin EIA(-) Clostridium Difficile

Status Completed

Clinical Trial Summary

This study proposes to:

1. Characterize the impact of oral vancomycin on C. difficile loads after end of treatment compared to a placebo group.

2. Determine the effect of oral vancomycin on structural and functional microbiome changes after end of treatment compared to a placebo group.

3. Characterize the impact of oral vancomycin against a placebo group on the daily frequency of loose stools by the end of treatment.

Clinical Trial Description

Clostridium difficile infection (CDI) is considered the most frequent healthcare associated infection in the US, causing almost half a million cases per year with an estimated annual cost of 4.8 billion dollars. Despite the existence of a few treatment options against CDI, yearly attributable deaths are estimated at 29,300 in the US. From April 2014 to April 2016, Froedtert Health reported 899 CDIs. Over half of these events are NAAT (Nucleic Acid Amplification Test)(+)/EIA (Enzyme immunoassay)(-) events. To test for CDI, NAAT followed by EIA is used in a Multistep algorithmic testing in which a sensitive nucleic acid amplification test (NAAT) is followed by a specific toxin A and toxin B enzyme immunoassay (EIA) and are among the most accurate methods for Clostridium difficile infection (CDI) diagnosis. There is currently uncertainty on how to treat these CDI events.

The primary outcome of this randomized double blind controlled intervention trial will be changes in C. difficile (Clostridium difficile) loads between day 1 and day 14 and changes in C. difficile load between day 14 and day 28. Thirty patients with documented C. difficile will be randomized to either 14 days of vancomycin or placebo capsules. Block randomization will be used to assign patients to the treatment or placebo arms. Randomized assignments will be placed in sealed envelopes which will only be handled by the research pharmacist. Study related stool collections will be obtained on days 1, 7, 14, 21, and 28 (+/- 2days) [Day 1=first day study drug was administered]. Patients will be followed for 90 days starting on day 1. Patients unable to complete at least 7 days of study treatment will be removed from analysis and replaced. ;

Related Conditions & MeSH terms

• Clostridium Difficile Infection
• Clostridium Infections

• NCT number: NCT03827447
• Study type: Interventional
• Source: Medical College of Wisconsin
• Status: Completed
• Phase: Phase 1
• Start date: July 17, 2019
• Completion date: June 30, 2021