Abstract

European Cubicin® Outcomes Registry and Experience (EU-CORE) was a retrospective, non-interventional, multicenter registry that collected real-world clinical outcomes following daptomycin use for the treatment of Gram-positive infections. EU-CORE data from patients with infective endocarditis (IE) who underwent heart valve replacement were analysed. Clinical outcomes were assessed as success (cured or improved), failure, or non-evaluable. Adverse events (AEs) were recorded for up to 30 days after daptomycin treatment. Of 610 patients with IE, 198 [32.5%; left-sided IE (LIE), 166 (83.8%); right-sided IE (RIE), 21 (10.6%); both LIE and RIE, 11 (5.6%)] underwent heart valve replacement. Other than cardiovascular disease, renal disease (18.2%), sepsis (16.2%), and diabetes mellitus (15.2%) were the most significant underlying diseases. Major pathogens in patients with positive culture results (68.0%) were Staphylococcus aureus [36.8%; methicillin-resistant S. aureus (MRSA), 12.8%] and coagulase-negative staphylococci (CoNS; 31.6%). Daptomycin treatment [median duration (range), 21 days (1-112)] resulted in high clinical success in patients with S. aureus (88.4%; MRSA, 80.0%) and CoNS (81.1%) infections, with an overall success rate of 83.3%. Clinical success rate was high (90.0%) in patients who received daptomycin dose >6 mg/kg/day. Overall clinical success rate in patients followed for up to 2 years was 90.7%. AEs and serious AEs possibly related to daptomycin were reported in 6 (3.0%) and 4 (2.0%) patients, respectively. Daptomycin treatment was effective and well tolerated with a sustained response in patients with IE who underwent heart valve surgery. A trend towards better clinical outcomes was observed with higher daptomycin doses.

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