Dalbavancin, a long-acting lipoglycopeptide for the treatment of multidrug-resistant Gram-positive bacteria
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Updated: Jul 13, 2026

A Reference Broth Microdilution Method for Dalbavancin In Vitro Susceptibility Testing of Bacteria that Grow Aerobically
Published on: September 9, 2015
Jean-Winoc Decousser1, Nadège Bourgeois-Nicolaos, Florence Doucet-Populaire
1Department of Biology, Centre Hospitalier de Dourdan, Dourdan, France. jean-winoc.decousser@wanadoo.fr
Abstract:
Dalbavancin is a new lipoglycopeptide antibiotic in late-stage clinical development as a once-weekly treatment for serious infections including skin and skin structure infections. Its in vitro potency is greater than that of vancomycin, with a MIC(90) of 0.06 mg/l for Staphylococcus aureus and coagulase-negative staphylococci (irrespective of oxacillin susceptibility), 0.06-0.12 mg/l for vancomycin-susceptible Enterococcus spp. and 0.003 mg/l or less for Streptococcus pneumoniae or beta-hemolytic streptococci. Dalbavancin has dual routes of elimination. The results of Phase II/III studies show clinical efficiency in complicated skin and skin structure infection. During clinical trials, dalbavancin was as effective as linezolid or vancomycin in the treatment of patients with complicated skin and skin structure infection, including those with methicillin-resistant S. aureus. An additional Phase II study demonstrated efficacy in catheter-related bacteremia. Other preliminary in vitro and in vivo data have identified putative interest of dalbavancin in endocarditis, osteitis, diabetic foot, respiratory tract or joint infection.
Insights
Dalbavancin, a novel lipoglycopeptide antibiotic, shows high potency against serious Gram-positive infections, including methicillin-resistant Staphylococcus aureus. Clinical trials confirm its efficacy and safety for skin infections and bacteremia.
Area of Science:
- Pharmacology and Infectious Diseases
- Clinical Microbiology
- Antibiotic Development
Background:
- Dalbavancin is a lipoglycopeptide antibiotic developed for serious infections.
- It exhibits potent in vitro activity against key Gram-positive pathogens.
- Established antibiotics like vancomycin serve as benchmarks for efficacy.
Purpose of the Study:
- To evaluate the clinical efficacy and safety of dalbavancin.
- To compare dalbavancin's effectiveness against other antibiotics.
- To explore potential applications of dalbavancin in various infections.
Main Methods:
- Phase II/III clinical trials for complicated skin and skin structure infections.
- Comparative efficacy studies against linezolid and vancomycin.
- Phase II study for catheter-related bacteremia.
Main Results:
- Dalbavancin demonstrated clinical efficiency in complicated skin and skin structure infections.
- It was found to be as effective as linezolid or vancomycin, including against methicillin-resistant Staphylococcus aureus.
- Efficacy was also shown in a study of catheter-related bacteremia.
Conclusions:
- Dalbavancin is an effective treatment option for serious Gram-positive infections.
- Its efficacy is comparable to existing therapies, offering a potential new therapeutic choice.
- Further research suggests potential utility in infections like endocarditis and osteitis.
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