A randomized Phase 2 trial of telavancin versus standard therapy in patients with uncomplicated Staphylococcus aureus bacteremia: the ASSURE study.

Abstract

BACKGROUND:

Staphylococcus aureus bacteremia is a common infection associated with significant morbidity and mortality. Telavancin is a bactericidal lipoglycopeptide active against Gram-positive pathogens, including methicillin-resistant S. aureus (MRSA). We conducted a randomized, double-blind, Phase 2 trial in patients with uncomplicated S. aureus bacteremia.

METHODS:

Patients were randomized to either telavancin or standard therapy (vancomycin or anti-staphylococcal penicillin) for 14 days. Continuation criteria were set to avoid complicated S. aureus bacteremia. The primary end point was clinical cure at 84 days.

RESULTS:

In total, 60 patients were randomized and 58 received ≥1 study medication dose (all-treated), 31 patients fulfilled inclusion/exclusion and continuation criteria (all-treated target [ATT]) (telavancin 15, standard therapy 16), and 17 patients were clinically evaluable (CE) (telavancin 8, standard therapy 9). Mean age (ATT) was 60 years. Intravenous catheters were the most common source of S. aureus bacteremia and ~50% of patients had MRSA. A similar proportion of CE patients were cured in the telavancin (88%) and standard therapy (89%) groups. All patients with MRSA bacteremia were cured and one patient with MSSA bacteremia failed study treatment in each group. Although adverse events (AEs) were more common in the telavancin ATT group (90% vs. 72%), AEs leading to drug discontinuation were similar (7%) in both treatment arms. Potentially clinically significant increases in serum creatinine (≥1.5 mg/dl and at least 50% greater than baseline) were more common in the telavancin group (20% vs. 7%).

CONCLUSIONS:

This study suggests that telavancin may have utility for treatment of uncomplicated S. aureus bacteremia; additional studies are warranted. (Telavancin for Treatment of Uncomplicated Staphylococcus Aureus Bacteremia (ASSURE); NCT00062647).

• Authors: Martin E Stryjewski, Arnold Lentnek, William O'Riordan, John Pullman, Paul Anantharajah Tambyah, Jose M Miró, Vance G Fowler Jr, Steven L Barriere, Michael M Kitt, G Ralph Corey
• Journal: BMC infectious diseases (BMC Infect Dis) Vol. 14 Pg. 289 (May 23 2014) ISSN: 1471-2334 [Electronic] England
• PMID: 24884578 (Publication Type: Clinical Trial, Phase II, Journal Article, Multicenter Study, Randomized Controlled Trial, Research Support, Non-U.S. Gov't)

Chemical References

• Aminoglycosides
• Anti-Bacterial Agents
• Lipoglycopeptides
• Penicillins
• Vancomycin
• telavancin

Topics

• Adult
• Aged
• Aged, 80 and over
• Aminoglycosides (adverse effects, therapeutic use)
• Anti-Bacterial Agents (therapeutic use)
• Bacteremia (drug therapy, microbiology)
• Catheter-Related Infections (complications, microbiology)
• Double-Blind Method
• Female
• Humans
• Lipoglycopeptides
• Male
• Methicillin-Resistant Staphylococcus aureus (drug effects, pathogenicity)
• Middle Aged
• Penicillins (therapeutic use)
• Staphylococcal Infections (drug therapy, microbiology)
• Staphylococcus aureus (drug effects, pathogenicity)
• Treatment Outcome
• Vancomycin (therapeutic use)