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1.1 Acute Bacterial Skin and Skin Structure Infections
DALVANCE™ (dalbavancin) for injection is indicated for the treatment of adult patients with acute bacterial skin and skin structure infections (ABSSSI) caused by susceptible isolates of the following Gram-positive microorganisms: Staphylococcus aureus (including methicillin-susceptible and methicillin-resistant strains), Streptococcus pyogenes, Streptococcus agalactiae and Streptococcus anginosus group (including S. anginosus, S. intermedius, S. constellatus).
1.2 Usage
To reduce the development of drug-resistant bacteria and maintain the effectiveness of DALVANCE and other antibacterial agents, DALVANCE should be used only to treat infections that are proven or strongly suspected to be caused by susceptible bacteria. When culture and susceptibility information are available, they should be considered in selecting or modifying antibacterial therapy. In the absence of such data, local epidemiology and susceptibility patterns may contribute to the empiric selection of therapy.
DALVANCE (dalbavancin) for injection is a lipoglycopeptide synthesized from a fermentation product of Nonomuraea species.
Dalbavancin is a mixture of five closely related active homologs (A0, A1, B0, B1, and B2); the component B0 is the major component of dalbavancin. The homologues share the same core structure and differ in the fatty acid side chain of the N-acylaminoglucuronic acid moiety (R1) structure and/or the presence of an additional methyl group (R2) on the terminal amino group (shown in the figure and table below).

Figure 1. Dalbavancin Structural Formula
|
Dalbavancin |
R1 |
R2 |
Molecular Formula |
Molecular Weight* |
|
A0 |
CH(CH3)2 |
H |
C87H98N10O28Cl2 · 1.6 HCl |
1802.7 |
|
A1 |
CH2CH2CH3 |
H |
C87H98N10O28Cl2 · 1.6 HCl |
1802.7 |
|
B0 |
CH2CH(CH3)2 |
H |
C88H100N10O28Cl2 · 1.6 HCl |
1816.7 |
|
B1 |
CH2CH2CH2CH3 |
H |
C88H100N10O28Cl2 · 1.6 HCl |
1816.7 |
|
B2 |
CH2CH(CH3)2 |
CH3 |
C89H102N10O28Cl2 · 1.6 HCl |
1830.7 |
*Anhydrous free base
The B0 INN chemical name is: 5,31-dichloro-38-de(methoxycarbonyl)-7-demethyl-19-deoxy-56-O-[2-deoxy-2-[(10-methylundecanoyl)amino]-β-D-glucopyranuronosyl]-38-[[3-(dimethylamino)propyl] carbamoyl]-42-O-α-D-mannopyranosyl-15-N-methyl(ristomycin A aglycone) hydrochloride.
DALVANCE is supplied in clear glass vials as a sterile, lyophilized, preservative-free, white to off-white to pale yellow solid. Each vial contains dalbavancin HCl equivalent to 500 mg of anhydrous dalbavancin as the free base, plus lactose monohydrate (129 mg) and mannitol (129 mg) as excipients. Sodium hydroxide or hydrochloric acid may be added to adjust the pH at the time of manufacture. The powder is to be reconstituted and further diluted for IV infusion [see Dosage and Administration (2.3) and How Supplied/Storage and Handling (16)].