for serious Staphylococcus aureus infections
- CUBICIN® (daptomycin for injection)
- Vancocin® HCl (Vancomycin Injection, USP)
- Zyvox® (linezolid injection/tablets/oral suspension)
- Tygacil® (tigecycline for injection)
Indications
VREF = vancomycin-resistant
Enterococcus faecium
Safety
AEs = adverse events; CBCs = complete blood counts
* Highlighted text represents new information added to package inserts in March 2007.
† C.difficile warning was not added to Vancocin package insert as of August 2007.
CIAI = complicated intra-abdominal infections; CPK = creatine phosphokinase; HMG-CoA = 3-hydroxy-3-methyl-glutaryl-Coenzyme A; SSRIs = selective serotonin reuptake inhibitors
* CUBICIN should be discontinued in patients with unexplained signs and symptoms of myopathy in conjunction with CPK elevation >1000 U/L (~5X ULN), or in patients without reported symptoms who have marked elevations in CPK >2000 U/L (
310X ULN).
Administration, Dosing, and Monitoring in Adults
cSSSIs = complicated skin and skin structure infections; LRTIs = lower respiratory tract infections; CAP = community-acquired pneumonia; VREF = vancomycin-resistant
E. faecium; CPK = creatine phosphokinase; CBCs = complete blood counts.
* In patients with creatinine clearance <30 mL/min, including those undergoing hemodialysis or continuous ambulatory peritoneal dialysis, 4 mg/kg q48h for cSSSI and 6 mg/kg q48h for
S. aureus bacteremia, including right-sided endocarditis.
† Dosage adjustment must be made in patients with impaired renal function.
‡ Dosage adjustment necessary in patients with severe hepatic impairment (Child Pugh C).
Microbiology
*Bactericidal activity against Gram-positive pathogens.
† In general, exhibits bacteriostatic activity against enterococci and bactericidal activity against streptococci and staphylococci.
5-7
‡ Bacteriostatic against enterococci and staphylococci. Bactericidal against most streptococci.
§ In general, bacteriostatic against aerobic and facultative Gram-positive and -negative pathogens, anaerobic microorganisms, and
Mycobacterium abscessus,
Mycobacterium chelonae, and
Mycobacterium fortuitum in vitro.
Susceptibility
MSSA = methicillin-susceptible
Staphylococcus aureus; MRSA = methicillin-resistant
S. aureus; X = active both
in vitro and in clinical infections;
In vitro only = active
in vitro, but clinical significance is unknown
* Including
avium,
casseliflavus, and
gallinarum.
Acquisition Cost*
*Cost per day calculated using wholesale acquisition cost as listed in Thomson Micromedex Red Book™ ReadyPrice
® System (March 2007 release) and assuming a 70-kg patient dosed according to the applicable package insert.
† WAC = wholesale acquisition cost, the list price to wholesalers without regard to prompt payment terms, discounts, rebates, or chargebacks.
‡ Assumes no product wastage. Less frequent dosing needed for patients with renal impairment. In patients with creatinine clearance <30 mL/min, CUBICIN should be dosed at 4 mg/kg q48h or 6 mg/kg q48h.
§ Vancomycin cost is approximated using a weighted average WAC of all generic formulations weighted by sales volume per IMS (Q105). Recommended vancomycin dosing for patients with creatinine clearance <30 mL/min varies based on several clinical variables referenced in the Vancocin package insert.
|| 100 mg loading dose followed by 50 mg BID. Cost of loading dose averaged over assumed average 10 day course of therapy.
Download the above information as a PDF
References: 1. CUBICIN
® [package insert]. Lexington, MA: Cubist Pharmaceuticals, Inc.; 2007.
2. Vancocin
® HCl [package insert]. Deerfield, IL: Baxter International Inc.; 2003.
3. Zyvox
® [package insert]. New York, NY: Pfizer Inc; 2007.
4. Tygacil
® [package insert]. Madison, NJ; Wyeth; 2007.
5. Akins RL, Rybak MJ. Bactericidal activities of two daptomycin regimens against clinical strains of glycopeptide intermediate-resistant
Staphylococcus aureus, vancomycin-resistant
Enterococcus faecium, and methicillin-resistant
Staphylococcus aureus isolates in an in vitro pharmacodynamic model with simulated endocardial vegetations.
Antimicrob Agents Chemother. 2001;45:454-459.
6. Pankuch GA, Jacobs MR, Appelbaum PC. Bactericidal activity of daptomycin against
Streptococcus pneumoniae compared with eight other antimicrobials.
J Antimicrob Chemother. 2003;51:443-446.
7. Watanakunakorn C, Tisone JC. Effects of a vancomycin-rifampin combination on enterococci.
Antimicrob Agents Chemother. 1982;22:915-916.