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Analysis of CA-MRSA Transmission: An ED Population Sampling Strategy

Molecular Epidemiology and Phylodynamic and Phylogeographic Analysis of Community-associated Methicillin-resistant Staphylococcus Aureus (CA-MRSA) Transmission: An Emergency Department Population Sampling Strategy

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT02363166
Enrollment
575
Registered
2015-02-13
Start date
2015-08-31
Completion date
2018-04-04
Last updated
2024-08-21

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

Conditions

Methicillin-Resistant Staphylococcus Aureus

Brief summary

Given that the Emergency Department (ED) has become the entry way for large populations of patients into the health care system, a strategy of sampling MRSA isolates in ED populations and merging this information with patient-level data may present a window to hypothesize and investigate CA-MRSA transmission within the community and its impact on hospital-acquired infections.

Detailed description

Prospective cross-sectional study involving 500 patients enrolled over a one year period at the UFHealth Shands Hospital's Adult and Pediatric Emergency Department. The collected information will serve as pilot data for a future large comprehensive multi-site study. Patients will have a wound culture and a nasal swab obtained as part of the study, which will be assessed for MRSA isolates using next-generation whole genome sequencing. The principal investigator or PI designee will also survey participants and review hospital records.

Interventions

OTHERAcute Abscess Group

Samples collected for culture and sensitivity testing depending on acute abscess, or skin/soft tissue infection.

Sponsors

University of Florida
Lead SponsorOTHER

Study design

Observational model
CASE_ONLY
Time perspective
CROSS_SECTIONAL

Eligibility

Sex/Gender
ALL
Age
1 Months to No maximum
Healthy volunteers
No

Inclusion criteria

* Patient or Legally Authorized Representative (LAR) must have voluntarily signed an Institutional Review Board-approved informed consent form before initiation of any study procedures * Patient presents with an acute abscess or a non-post-operative skin/soft tissue infection * Patient presents through the UFHealth Shands Emergency Department

Exclusion criteria

* Patients who are employed by UFHealth and provide direct patient care * Patients who have previously been enrolled in the study * Patients who are not suitable for the study in the opinion of the investigator

Design outcomes

Primary

MeasureTime frameDescription
Strain Relatedness Identification Through Phylogenetic Analysis1 HourMolecular (spa-typing) and genomic (WGS) relatedness of MRSA strains in isolates in ED populations presenting with SSTIs.

Secondary

MeasureTime frameDescription
Strain Transmission Through Analysis of Genetic Clustering1 yearPhlyodynamic analysis of MRSA transmission course by strain
Patient Level Characteristics of Skin and Soft Tissue Infection (SSTI) Presentation6 MonthsTo determine patient-level characteristics, including social and medical history, associated with a presentation related to SSTIs.
Pediatric and Adult Population Presentation Characteristics in Skin and Soft Tissue Infection (SSTI)6 MonthsCompare patient-level characteristics and phylogenetic clustering between pediatric and adult patients presenting with SSTIs.

Countries

United States

Outcome results

None listed

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