Comparing Daptomycin and Vancomycin for MRSA Bloodstream Infections

DAPTO-SNAP: Daptomycin vs. Vancomycin for the Treatment of Methicillin Resistant S. Aureus Bacteremia

Phase 4 Interventional McGill University Health Centre/Research Institute of the McGill University Health Centre · NCT06637332

This study is testing whether daptomycin or vancomycin works better for treating bloodstream infections caused by MRSA in patients.

Quick facts

PhasePhase 4
Study typeInterventional
Enrollment300 (estimated)
Ages18 Years and up
SexAll
SponsorMcGill University Health Centre/Research Institute of the McGill University Health Centre Academic / other
Locations15 sites (Concord, New South Wales and 14 other locations)
Trial IDNCT06637332 on ClinicalTrials.gov

What this trial studies

This clinical trial is an open-label randomized controlled trial that aims to compare the effectiveness of two commonly used antibiotics, daptomycin and vancomycin, in treating patients with methicillin-resistant Staphylococcus aureus (MRSA) bloodstream infections. Participants will be randomly assigned to receive either daptomycin or vancomycin, and their outcomes will be monitored to determine which treatment is more effective. The study is part of a larger adaptive platform trial focused on improving treatment for Staphylococcus aureus infections.

Who should consider this trial

Good fit: Ideal candidates for this study are patients diagnosed with methicillin-resistant S. aureus bacteremia.

Not a fit: Patients with severe allergies to vancomycin or daptomycin, or those with suspected MRSA pneumonia, may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide clearer guidance on the most effective treatment for MRSA bloodstream infections, potentially improving patient outcomes.

How similar studies have performed: Other studies have explored the effectiveness of daptomycin and vancomycin, but this specific comparison in the context of MRSA bacteremia is part of a novel adaptive platform approach.

Eligibility criteria

Show full inclusion / exclusion criteria
The participant must meet all inclusion and exclusion criteria for the SNAP Platform (NCT05137119) and also the following inclusion and exclusion criteria:

Inclusion Criteria:

* Methicillin-resistant S. aureus bacteremia

Exclusion Criteria:

* Severe allergy or non-severe rash to vancomycin or daptomycin
* Suspected or confirmed MRSA pneumonia
* Known vancomycin minimum inhibitory concentration (MIC) greater than or equal to 2mg/L or daptomycin MIC greater than or equal to 1mg/L

Where this trial is running

Concord, New South Wales and 14 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Staphylococcus Aureus SepticemiaStaphylococcus Aureus BacteremiaS. Aureus BacteremiaS. Aureus Bloodstream InfectionStaphylococcus Aureus EndocarditisS. aureus bacteremiaMethicllin resistantMRSA
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.