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Resistance Rates and Mechanisms of Resistance to Imipenem and Meropenem at UPMC

Information source: University of Pittsburgh
ClinicalTrials.gov processed this data on August 23, 2015
Link to the current ClinicalTrials.gov record.

Condition(s) targeted: Gram Negative Organism

Phase: N/A

Status: Active, not recruiting

Sponsored by: University of Pittsburgh

Official(s) and/or principal investigator(s):
Brian Potoski, Pharm D, Principal Investigator, Affiliation: University of Pittsburgh


The isolate samples will be collected over a period of one year once IRB approval has been obtained. These isolates were collected as part of the patient's clinical care and once all clinical testing is complete, all isolates will be discarded. The honest broker of our area will collect the isolates and deidentify all information once all clinical testing is complete. The isolates will be obtained from the microbiology lab.

Clinical Details

Official title: Resistance Rates and Mechanisms of Resistance to Imipenem and Meropenem at UPMC to Problematic Gram-negative Organisms

Study design: Observational Model: Cohort, Time Perspective: Prospective

Primary outcome: dead or alive

Detailed description: The study will collect two hundred pseudomonas and 20 acinetobacter baumanti consecutive bacterial isolates from microbiology. These isolates are collected as part of the patient's clinical care and are discarded once all clinical testing is complete. The honest broker will obtain these samples after all clinical testing is complete. All isolates will be deidentified. These isolates will be tested using standardized susceptibility methods for meropenem and imipenem. The activity of doripenem, a carbapenem currently being studied, and arbekacin an aminoglycoside, will also be tested. The honest broker will also collect limited patient data including underlying condition, presence of a solid organ transplant, ward location, and antibiotic history over the three months prior to organism isolation. For resistant isolates found, analytical and molecular techniques will be performed to determine the mechanisms of resistance and whether resistant isolates are coming from a single source/being transmitted from person to person.


Minimum age: N/A. Maximum age: N/A. Gender(s): Both.


Inclusion Criteria:

- Samples" for the purpose of this study are Gram negative bacteria in a Petri dish of

growth media.

Locations and Contacts

University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania 15213, United States
Additional Information

Starting date: February 2007
Last updated: December 5, 2014

Page last updated: August 23, 2015

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