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Relationship of Staphylococcal Colonization to Infection

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified October 2008 by Veterans BioMedical Research Institute.
Recruitment status was:  Not yet recruiting
ClinicalTrials.gov Identifier:
First Posted: October 3, 2008
Last Update Posted: October 3, 2008
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by:
Veterans BioMedical Research Institute

Inpatients will be prospectively have nares screened and MRSA strains collected. All clinical MRSA strains of patients will also be prospectively collected. A sensitive strain discrimination test of spa typing will be used to determine if the strains are related. Hypotheses are

  1. Strain colonization durations vary and may be very short in days to weeks.
  2. Colonizing strains rarely infect 3) Both 1 and 2 may be affected by the patient's co-morbidity.

MRSA Infection

Study Type: Observational
Study Design: Observational Model: Case Control
Time Perspective: Prospective
Official Title: Relationship of Staphylococcal Colonization to Infection

Further study details as provided by Veterans BioMedical Research Institute:

Primary Outcome Measures:
  • Percent of infection strains which were also colonizer earlier [ Time Frame: 3 years ]

Secondary Outcome Measures:
  • Duration of strain colonization among co-morbidity cohorts [ Time Frame: 3 years ]

Biospecimen Retention:   None Retained
only bacterial strains collected

Estimated Enrollment: 4400
Study Start Date: July 2009
Estimated Study Completion Date: June 2012
Estimated Primary Completion Date: June 2011 (Final data collection date for primary outcome measure)
Intensive care
vascular patients with open wounds
nursing home
skin infections
control- ambulatory care clinic patients with no infections

Detailed Description:

Patients of special interest:

  1. Skin and soft tissue infection
  2. Nursing home patients
  3. Vascular patients with leg lesions
  4. ICU patients
  5. Hemodialysis patients
  6. Outpatients without history of infections(controls) will have nares screened for MRSA and then monthly for 1 year.

All strains will be saved and spa typed. Analysis of the data will be performed to answer the questions and hypotheses and to answer is the screening effort and the isolation of patients for MRSA as is in current practice worthwhile and is there any scientific data to support this practice


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Ages Eligible for Study:   Child, Adult, Senior
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
all patients admited

Inclusion Criteria:

  • Admitted and one of the co-morbid groups
  • Ambulatory care patient with no infections

Exclusion Criteria:

  • All others
  Contacts and Locations
No Contacts or Locations Provided
  More Information

Responsible Party: Kristen Bourgerie Executive Director, Veterans BioMedical Research Institute
ClinicalTrials.gov Identifier: NCT00766259     History of Changes
Other Study ID Numbers: Eng-MRSA
First Submitted: October 2, 2008
First Posted: October 3, 2008
Last Update Posted: October 3, 2008
Last Verified: October 2008

Keywords provided by Veterans BioMedical Research Institute:
methicillin-resistant Staphylococcus

Additional relevant MeSH terms:
Communicable Diseases