Daptomycin - Cubicin ® |
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Usual Diluents |
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NS [See comments below regarding reconstitution - CUBICIN versus CUBICIN® RF ] |
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Standard Dilutions [Amount of drug] [Infusion volume] [Infusion rate] |
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Standard 30 minute infusion (IVPB): [(4 mg/kg) ] [ 50 ml] [30 min] [(6 mg/kg) ] [ 50 ml] [30 min] Two minute infusion (Adult patients only): |
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Stability / Miscellaneous |
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There are important differences between CUBICIN® (daptomycin for injection) and CUBICIN® RF (daptomycin for injection) concerning storage and reconstitution:
Source: https://cubicin.com/dosing-and-administration/dosing-and-administration/ Vial-Storage Prior to Reconstitution CUBICIN RF Diluent for Vial Reconstitution CUBICIN RF Preparation for Administration CUBICIN RF In-Use Shelf Life (once reconstituted)
*Polypropylene syringe with elastomeric plunger stopper.
Daptomycin exhibits rapid, concentration-dependent bactericidal activity against Gram-positive organisms in vitro. This has been demonstrated both by time-kill curves and by MBC/MIC ratios (minimum bactericidal concentration/minimum inhibitory concentration) using broth dilution methodology. Daptomycin maintained bactericidal activity in vitro against stationary phase S. aureus in simulated endocardial vegetations. The clinical significance of this is not known. Mechanism of Action Mechanism of Resistance Cross-Resistance Interactions with Other Antibiotics Complicated Skin and Skin Structure Infection (cSSSI) Studies S. aureus Bacteremia/Endocarditis and Other Post-Approval Studies Daptomycin has been shown to be active against most isolates of the following microorganisms both in vitro and in clinical infections, as described in the INDICATIONS AND USAGE section. Aerobic and facultative Gram-positive microorganisms: The following in vitro data are available, but their clinical significance is unknown. Greater than 90% of the following microorganisms demonstrate an in vitro MIC less than or equal to the susceptible breakpoint for daptomycin versus the bacterial genus. The efficacy of daptomycin in treating clinical infections due to these microorganisms has not been established in adequate and well-controlled clinical trials. Aerobic and facultative Gram-positive microorganisms: CLINICAL PHARMACOLOGY Table 7. Mean (SD) Daptomycin Pharmacokinetic Parameters in Healthy Volunteers at Steady-State
Daptomycin pharmacokinetics were generally linear and time-independent at CUBICIN doses of 4 to 12 mg/kg q24h administered for up to 14 days. Steady-state trough concentrations were achieved by the third daily dose. The mean (SD) steady-state trough concentrations attained following the administration of 4, 6, 8, 10, and 12 mg/kg q24h were 5.9 (1.6), 6.7 (1.6), 10.3 (5.5), 12.9 (2.9), and 13.7 (5.2) mcg/mL, respectively. CUBICIN Administered over a 2-Minute Period Distribution In clinical studies, mean serum protein binding in subjects with creatinine clearance (CLCR) ≥30 mL/min was comparable to that observed in healthy subjects with normal renal function. However, there was a trend toward decreasing serum protein binding among subjects with CLCR <30 mL/min (88%), including those receiving hemodialysis (86%) and continuous ambulatory peritoneal dialysis (CAPD) (84%). The protein binding of daptomycin in subjects with moderate hepatic impairment (Child-Pugh Class B) was similar to that in healthy adult subjects. The volume of distribution at steady-state (Vss) of daptomycin in healthy adult subjects was approximately 0.1 L/kg and was independent of dose. Metabolism In 5 healthy young adults after infusion of radiolabeled 14C-daptomycin, the plasma total radioactivity was similar to the concentration determined by microbiological assay. Inactive metabolites were detected in urine, as determined by the difference between total radioactive concentrations and microbiologically active concentrations. In a separate study, no metabolites were observed in plasma on Day 1 following the administration of CUBICIN at 6 mg/kg to subjects. Minor amounts of three oxidative metabolites and one unidentified compound were detected in urine. The site of metabolism has not been identified. Excretion INDICATIONS AND USAGE Complicated skin and skin structure infections (cSSSI) caused by susceptible isolates of the following Gram-positive microorganisms: Staphylococcus aureus (including methicillin-resistant isolates), Streptococcus pyogenes, Streptococcus agalactiae, Streptococcus dysgalactiae subsp. equisimilis, and Enterococcus faecalis (vancomycin-susceptible isolates only). Combination therapy may be clinically indicated if the documented or presumed pathogens include Gram-negative or anaerobic organisms. Staphylococcus aureus bloodstream infections (bacteremia), including those with right-sided infective endocarditis, caused by methicillin-susceptible and methicillin-resistant isolates. Combination therapy may be clinically indicated if the documented or presumed pathogens include Gram-negative or anaerobic organisms. The efficacy of CUBICIN in patients with left-sided infective endocarditis due to S. aureus has not been demonstrated. The clinical trial of CUBICIN in patients with S. aureus bloodstream infections included limited data from patients with left-sided infective endocarditis; outcomes in these patients were poor (see CLINICAL STUDIES). CUBICIN has not been studied in patients with prosthetic valve endocarditis or meningitis. Patients with persisting or relapsing S. aureus infection or poor clinical response should have repeat blood cultures. If a culture is positive for S. aureus, MIC susceptibility testing of the isolate should be performed using a standardized procedure, as well as diagnostic evaluation to rule out sequestered foci of infection (see PRECAUTIONS). CUBICIN is not indicated for the treatment of pneumonia. Appropriate specimens for microbiological examination should be obtained in order to isolate and identify the causative pathogens and to determine their susceptibility to daptomycin. Empiric therapy may be initiated while awaiting test results. Antimicrobial therapy should be adjusted as needed based upon test results. To reduce the development of drug-resistant bacteria and maintain the effectiveness of CUBICIN and other antibacterial drugs, CUBICIN should be used only to treat or prevent 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. CONTRAINDICATIONS WARNINGS C. difficile produces toxins A and B, which contribute to the development of CDAD. Hypertoxin-producing strains of C. difficile cause increased morbidity and mortality, since these infections can be refractory to antimicrobial therapy and may require colectomy. CDAD must be considered in all patients who present with diarrhea following antibiotic use. Careful medical history is necessary because CDAD has been reported to occur over 2 months after the administration of antibacterial agents. If CDAD is suspected or confirmed, ongoing antibiotic use not directed against C. difficile may need to be discontinued. Appropriate fluid and electrolyte management, protein supplementation, antibiotic treatment of C. difficile, and surgical evaluation should be instituted as clinically indicated OVERDOSAGE 2.1 Important Administration Duration InstructionsAdults Pediatric Patients (1 to 17 Years of Age) 2.2 Dosage in Adults for cSSSI 2.3 Dosage in Pediatric Patients (1 to 17 Years of Age) for cSSSI
2.4 Dosage in Adult Patients with Staphylococcus aureus Bloodstream Infections (Bacteremia), Including Those with Right-Sided Infective Endocarditis, Caused by Methicillin-Susceptible and Methicillin-Resistant Isolates: Administer CUBICIN RF 6 mg/kg to adult patients intravenously once every 24 hours for 2 to 6 weeks. There are limited safety data for the use of CUBICIN for more than 28 days of therapy. In the Phase 3 trial, there were a total of 14 adult patients who were treated with CUBICIN for more than 28 days. 2.5 Dosage in Pediatric Patients (1 to 17 Years of Age) with Staphylococcus aureus Bloodstream Infections (Bacteremia): The recommended dosage regimens based on age for pediatric patients with S. aureus bloodstream infections (bacteremia) are shown in Table 2. Administer CUBICIN RF intravenously in 0.9% sodium chloride injection once every 24 hours for up to 42 days.
2.6 Dosage in Patients with Renal Impairment Adult Patients:
Pediatric Patients: The dosage regimen for CUBICIN RF in pediatric patients with renal impairment has not been established.
2.7 Preparation and Administration of CUBICIN RFThere are two formulations of daptomycin that have differences concerning storage and reconstitution. Carefully follow the reconstitution and storage procedures in labeling.
Reconstitution of CUBICIN RF Vial CUBICIN RF must be reconstituted within the vial only with either Sterile Water for Injection or Bacteriostatic Water for Injection. Do NOT use saline based diluents for the reconstitution in the vial because this will result in a hyperosmotic solution that may result in infusion site reactions if the reconstituted product is administered as an intravenous injection over a period of 2 minutes. CUBICIN RF is supplied in single-dose vials, each containing 500 mg daptomycin as a sterile, lyophilized powder. The contents of a CUBICIN RF vial should be reconstituted, using aseptic technique, to 50 mg/mL as follows:
Administration Instructions Parenteral drug products should be inspected visually for particulate matter prior to administration. Slowly remove reconstituted liquid (50 mg daptomycin/mL) from the vial using a beveled sterile needle that is 21 gauge or smaller in diameter. Administer as an intravenous injection or infusion as described below:
Adults
Intravenous Injection over a period of 2 minutes
Intravenous Infusion over a period of 30 minutes
Pediatric Patients (1 to 17 Years of Age)
Intravenous Infusion over a period of 30 or 60 minutes
No preservative or bacteriostatic agent is present in this product. Aseptic technique must be used in the preparation of final IV solution. Table 4 below provides in-use storage conditions for reconstituted CUBICIN RF in acceptable intravenous diluents in the syringe, vial and intravenous bag (for reconstitution and dilution). Do not exceed the listed shelf-life of reconstituted and diluted solutions of CUBICIN RF. Discard unused portions of CUBICIN RF.
2.8 Compatible Intravenous SolutionsReconstituted CUBICIN RF is compatible with Sterile Water for Injection, Bacteriostatic Water for Injection, and 0.9% sodium chloride injection. [See DOSAGE AND ADMINISTRATION (2.7).]
2.9 IncompatibilitiesCUBICIN RF is not compatible with dextrose-containing diluents. CUBICIN RF should not be used in conjunction with ReadyMED® elastomeric infusion pumps. Stability studies of CUBICIN solutions stored in ReadyMED® elastomeric infusion pumps identified an impurity (2-mercaptobenzothiazole) leaching from this pump system into the CUBICIN solution. Because only limited data are available on the compatibility of CUBICIN RF with other IV substances, additives and other medications should not be added to CUBICIN RF single-dose vials or infusion bags, or infused simultaneously with CUBICIN RF through the same IV line. If the same IV line is used for sequential infusion of different drugs, the line should be flushed with a compatible intravenous solution before and after infusion with CUBICIN RF.
2.7 Preparation and Administration of CUBICINThere are two formulations of daptomycin that have differences concerning storage and reconstitution. Carefully follow the reconstitution and storage procedures in labeling.
Reconstitution of CUBICIN Vial CUBICIN is supplied in single-dose vials, each containing 500 mg daptomycin as a sterile, lyophilized powder. The contents of a CUBICIN vial should be reconstituted, using aseptic technique, to 50 mg/mL as follows:
Administration Instructions Parenteral drug products should be inspected visually for particulate matter prior to administration. Slowly remove reconstituted liquid (50 mg daptomycin/mL) from the vial using a beveled sterile needle that is 21 gauge or smaller in diameter. Administer as an intravenous injection or infusion as described below:
Adults Intravenous Injection over a period of 2 minutes
Intravenous Infusion over a period of 30 minutes
Pediatric Patients (1 to 17 Years of Age) Intravenous Infusion over a period of 30 or 60 minutes
No preservative or bacteriostatic agent is present in this product. Aseptic technique must be used in the preparation of final IV solution. Do not exceed the In-Use storage conditions of the reconstituted and diluted solutions of CUBICIN described below. Discard unused portions of CUBICIN.
In-Use Storage Conditions for CUBICIN Once Reconstituted in Acceptable Intravenous Diluents Stability studies have shown that the reconstituted solution is stable in the vial for 12 hours at room temperature and up to 48 hours if stored under refrigeration at 2 to 8°C (36 to 46°F). The diluted solution is stable in the infusion bag for 12 hours at room temperature and 48 hours if stored under refrigeration. The combined storage time (reconstituted solution in vial and diluted solution in infusion bag) should not exceed 12 hours at room temperature or 48 hours under refrigeration.
2.8 Compatible Intravenous SolutionsCUBICIN is compatible with 0.9% sodium chloride injection and lactated Ringer's injection.
2.9 IncompatibilitiesCUBICIN is not compatible with dextrose-containing diluents. CUBICIN should not be used in conjunction with ReadyMED® elastomeric infusion pumps. Stability studies of CUBICIN solutions stored in ReadyMED® elastomeric infusion pumps identified an impurity (2-mercaptobenzothiazole) leaching from this pump system into the CUBICIN solution. Because only limited data are available on the compatibility of CUBICIN with other IV substances, additives and other medications should not be added to CUBICIN single-dose vials or infusion bags, or infused simultaneously with CUBICIN through the same IV line. If the same IV line is used for sequential infusion of different drugs, the line should be flushed with a compatible intravenous solution before and after infusion with CUBICIN. HOW SUPPLIED Store original packages at 20°C to 25°C (68°F to 77°F); excursions permitted to 15°C to 30°C (59°F to 86°F) [see USP Controlled Room Temperature] CUBICIN (daptomycin for injection) is supplied as a sterile pale yellow to light brown lyophilized cake in a single-dose 10 mL vial containing 500 mg of daptomycin: Package of 1 (NDC 67919-011-01). Store original packages at refrigerated temperatures, 2 to 8°C (36 to 46°F); avoid excessive heat CUBICIN is a registered trademark of Cubist Pharmaceuticals, Inc. All other trademarks are property of their respective owners. Manufactured for: For all medical inquiries call: (866) 793-2786 Source: CUBICIN [package insert]. Lexington, MA 02421 USA: Cubist Pharmaceuticals, Inc., November 2010. |