Life sciences · Phase 4 Trial
ClinicalTrials.gov · September 21, 2026
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Phase 4 Trial.
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Registry record from ClinicalTrials.gov (NCT06650488). This is a study registration, not published results. Lead sponsor: Todd C. Lee MD MPH FIDSA. Recruitment status: RECRUITING. Phase: PHASE4. Study type: INTERVENTIONAL. Enrollment: 300 participants (ESTIMATED). Conditions: Staphylococcus Aureus Endocarditis, Staphylococcus Aureus Septicemia, Staphylococcus Aureus Bloodstream Infection. Interventions: DRUG: Clopidogrel; DRUG: Aspirin. Primary outcome measures: Desirability of Outcome Ranking (DOOR) , Day 90 post enrollment in the S. aureus Network Adaptive Platform Trial (NCT05137119). Brief summary: This is an open-label randomized controlled trial which will enroll patients with S. aureus bacteremia who are already taking aspirin for secondary prevention of cardiovascular events. We will randomize patients to continue their aspirin or change clopidogrel which is also approved for secondary prevention. Unlike aspirin, clopidogrel may have activity against S. aureus. We wish to determine if changing to clopidogrel will improve outcomes in S. aureus bacteremia in people who otherwise would have a reason to be taking it. This study is an approved sub-study of The Staphylococcus aureus Network Adaptive Platform (SNAP) trial (NCT05137119). If positive, this study will support a Phase 3 RCT in people who do not currently have an indication for clopidogrel.