Dalbavancin

1 INDICATIONS AND USAGE Dalbavancin for Injection is a lipoglycopeptide antibacterial indicated for the treatment of adult and pediatric patients with acute bacterial skin and skin structure infections (ABSSSI) caused by designated susceptible strains of Gram-positive microorganisms. ( 1.1 ) To reduce the development of drug-resistant bacteria and maintain the effectiveness of Dalbavancin for Injection and other antibacterial drugs, Dalbavancin for Injection should be used only to treat or prevent infections that are proven or strongly suspected to be caused by susceptible bacteria. ( 1.2 ) 1.1 Acute Bacterial Skin and Skin Structure Infections Dalbavancin for Injection is indicated for the treatment of adult and pediatric patients with acute bacterial skin and skin structure infections (ABSSSI) caused by designated susceptible strains of the following Gram-positive microorganisms: Staphylococcus aureus (including methicillin-susceptible and methicillin-resistant isolates), Streptococcus pyogenes , Streptococcus agalactiae , Streptococcus dysgalactiae , Streptococcus anginosus group (including S. anginosus , S. intermedius , S . constellatus ) and Enterococcus faecalis (vancomycin susceptible isolates). 1.2 Usage To reduce the development of drug-resistant bacteria and maintain the effectiveness of Dalbavancin for Injection and other antibacterial agents, Dalbavancin for Injection 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.

2 DOSAGE AND ADMINISTRATION Dosage in Adult Patients ( 2.1 , 2.3 ): Estimated Creatinine Clearance ( C L cr) Single- Dose Regimen 30 mL/min and above or on regular hemodialysis 1,500 mg Less than 30 mL/min and not on regular hemodialysis 1,125 mg Administer by intravenous infusion over 30 minutes ( 2.1 , 2.4 ) See Full Prescribing Information for instructions on reconstitution of lyophilized powder and preparation of injection ( 2.4 ) Dosage in Pediatric Patients with CLcr 30 mL/min/1.73m 2 and above ( 2.2 ) Age Range Dosage (Single-Dose Regimen) Birth to less than 6 years 22.5 mg/kg (maximum of 1,500 mg) 6 to less than 18 years 18 mg/kg (maximum of 1,500 mg) Dosage adjustment in pediatric patients with CLcr less than 30 mL/min has not been studied. 2.1 Recommended Dos ag e Regimen in Adult Patients with CLcr 30 mL/min and Above The recommended dosage regimen of dalbavancin for injection in adult patients with CLcr 30 mL/min and above is 1,500 mg, administered as a single-dose regimen. Administer dalbavancin for injection over 30 minutes by intravenous infusion. For adult patients with CLcr less than 30 mL/min, dosage adjustment is required [see Dosage and Administration ( 2.3 ) and Clinical Pharmacology ( 12.3 ) ] . 2.2 Recommended Dosage Regimen in Pediatric Patients with CLcr 30 mL/min/ 1.73m 2 and Abov e The recommended dosage regimen of dalbavancin for injection in pediatric patients with CLcr 30 mL/min/1.73m 2 and above is a single-dose regimen based on the age and weight of the pediatric patient ( Table 1 ). Administer dalbavancin for injection over 30 minutes by intravenous infusion. There is insufficient information to recommend dosage adjustment for pediatric patients younger than 18 years with CLcr less than 30 mL/min/1.73m 2 [see Use in Specific Populations ( 8.4 ) and Clinical Pharmacology ( 12.3 )] . Table 1. Dosage of Dalbavancin for Injection in Pediatric Patients with CLcr* 30 mL/min/1.73m 2 and above Age Range Dosage (Single-Dose Regimen) Birth to less than 6 years 22.5 mg/kg (maximum 1,500 mg) 6 to less than 18 years 18 mg/kg (maximum 1,500 mg) *Estimate CLcr or glomerular filtration rate (GFR) using an age-appropriate equation accepted for pediatric patients (birth to less than 18 years old) to define renal function impairment. 2.3 Dosage Adjustments in Adult Patients with CLcr less than 30 mL/min In adult patients with renal impairment whose known CLcr is less than 30 mL/min and who are not receiving regularly scheduled hemodialysis, the recommended dosage regimen of dalbavancin for injection is 1,125 mg, administered as a single-dose regimen. No dosage adjustment is recommended for adult patients receiving regularly scheduled hemodialysis, and dalbavancin for injection can be administered without regard to the timing of hemodialysis [see Use in Specific Populations ( 8.6 ) and Clinical Pharmacology ( 12.3 )] . 2.4 Preparation and Administration Dalbavancin for injection must be reconstituted with either Sterile Water for Injection, USP, or 5% Dextrose Injection, USP, and subsequently diluted only with 5% Dextrose Injection, USP, to a final concentration of 1 mg per mL to 5 mg per mL. Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration, whenever solution and container permit. Reconstitution Dalbavancin for injection must be reconstituted under aseptic conditions, using 25 mL of either Sterile Water for Injection, USP, or 5% Dextrose Injection, USP, for each 500 mg vial. To avoid foaming, alternate between gentle swirling and inversion of the vial until its contents are completely dissolved. Do not shake. The reconstituted vial contains 20 mg per mL dalbavancin as a clear, colorless to yellow solution. Reconstituted vials may be stored either refrigerated at 2° to 8°C (36° to 46°F), or at controlled room temperature 20° to 25°C (68° to 77°F). Do not freeze. Dilution Adult Patients Aseptically transfer the required dose of reconstituted dalba …

3 DOSAGE FORMS AND STRENGTHS Dalbavancin for Injection is supplied as a white/off-white to pale yellow lyophilized sterile powder for reconstitution in a single-dose clear glass vial containing dalbavancin hydrochloride equivalent to 500 mg of dalbavancin . For injection: 500 mg of lyophilized powder in a vial for reconstitution ( 3 )

4 CONTRAINDICATIONS Dalbavancin for injection is contraindicated in patients with known hypersensitivity to dalbavancin. Known hypersensitivity to dalbavancin ( 4 )

6 ADVERSE REACTIONS The following clinically significant adverse reactions are also discussed elsewhere in the labeling: Hypersensitivity Reactions [see Warnings and Precautions (5.1) ] Infusion Related Reactions [see Warnings and Precautions (5.2) ] Hepatic Effects [see Warnings and Precautions (5.3) ] Clostridioides difficile-associated Diarrhea [see Warnings and Precautions (5.4) ] The most common adverse reactions occurring in >4% of adult patients treated with dalbavancin for injection were nausea, headache, and diarrhea. The most common adverse reaction that occurred in >1% of pediatric patients was pyrexia. (6.1) To report SUSPECTED ADVERSE REACTIONS, contact BE Pharmaceuticals Inc. at 1-877-648-9517 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Clinical Trials Experience Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in clinical trials of dalbavancin for injection cannot be directly compared to rates in the clinical trials of another drug and may not reflect rates observed in practice. Clinical Trials Experience in Adult Patients Adverse reactions were evaluated for 2,473 patients treated with dalbavancin for injection: 1,778 patients were treated with dalbavancin for injection in seven Phase 2/3 trials comparing dalbavancin for injection to comparator antibacterial drugs and 695 patients were treated with dalbavancin for injection in one Phase 3 trial comparing dalbavancin for injection single dose and another dalbavancin dosing regimens. The median age of patients treated with dalbavancin for injection was 48 years, ranging between 16 and 93 years. Patients treated with dalbavancin for injection were predominantly male (59.5%) and White (81.2%). Serious Adverse Reactions and Adverse Reactions Leading to Discontinuation Serious adverse reactions occurred in 121/2,473 (4.9%) of patients treated with any regimen of dalbavancin for injection. In the Phase 2/3 trials comparing dalbavancin for injection to comparator, serious adverse reactions occurred in 109/1,778 (6.1%) of patients in the dalbavancin for injection group and 80/1,224 (6.5%) of patients in the comparator group. In a Phase 3 trial comparing dalbavancin for injection single dose and another dalbavancin dosing regimen, serious adverse reactions occurred in 7/349 (2%) of patients in the dalbavancin for injection single dose group and 5/346 (1.4%) of patients in another dalbavancin for injection dosing regimen group. Dalbavancin for injection was discontinued due to an adverse reaction in 64/2,473 (2.6%) patients treated with any regimen of dalbavancin for injection. In the Phase 2/3 trials comparing dalbavancin for injection to comparator, dalbavancin for injection was discontinued due to an adverse reaction in 53/1,778 (3.0%) of patients in the dalbavancin for injection group and 35/1,224 (2.9%) of patients in the comparator group. In a Phase 3 trial comparing dalbavancin for injection single dose and another dalbavancin dosing regimen, dalbavancin for injection was discontinued due to an adverse reaction in 6/349 (1.7%) of patients in the dalbavancin for injection single dose group and 5/346 (1.4%) of patients in another dalbavancin dosing group. Most Common Adverse Reactions The most common adverse reactions in patients treated with dalbavancin for injection in Phase 2/3 trials were nausea (5.5%), headache (4.7%), and diarrhea (4.4%). The median duration of adverse reactions was 3.0 days in patients treated with dalbavancin for injection. In the Phase 2/3 trials comparing dalbavancin for injection to comparator, the median duration of adverse reactions was 3.0 days for patients in the dalbavancin for injection group and 4.0 days in patients in the comparator group. In a Phase 3 trial comparing dalbavancin for injection single dose and another dalbavancin dosing regimens, the median duration of adverse reactions was 3.0 days for patients in the dalbavancin for injection single dose and another d …

7 DRUG INTERACTIONS 7.1 Drug-Laboratory Test Interactions Drug-laboratory test interactions have not been reported. Dalbavancin for injection at therapeutic concentrations does not artificially prolong prothrombin time (PT) or activated partial thromboplastin time (aPTT). 7.2 Drug-Drug Interactions No clinical drug-drug interaction studies have been conducted with dalbavancin for injection. There is minimal potential for drug-drug interactions between dalbavancin for injection and cytochrome P450 (CYP450) substrates, inhibitors, or inducers [see Clinical Pharmacology (12.3) ].

8 USE IN SPECIFIC POPULATIONS 8.1 Pregnancy Risk Summary There are no adequate and well-controlled studies with dalbavancin for injection use in pregnant women to evaluate for a drug-associated risk of major birth defects, miscarriage or adverse developmental outcomes. No treatment-related malformations or embryo-fetal toxicity were observed in pregnant rats or rabbits at clinically relevant exposures of dalbavancin. Treatment of pregnant rats with dalbavancin at 3.5 times the human dose on an exposure basis during early embryonic development and from implantation to the end of lactation resulted in delayed fetal maturation and increased fetal loss, respectively [see Data]. The estimated background risk of major birth defects and miscarriage for the indicated population is unknown. All pregnancies have a background risk of birth defect, loss, or other adverse outcomes. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively. Data Animal Data No evidence of embryo or fetal toxicity was found in the rat or rabbit at a dose of 15 mg/kg/day (1.2 and 0.7 times the human dose on an exposure basis, respectively). Delayed fetal maturation was observed in the rat at a dose of 45 mg/kg/day (3.5 times the human dose on an exposure basis). In a rat prenatal and postnatal development study, increased embryo lethality and increased offspring deaths during the first week post-partum were observed at a dose of 45 mg/kg/day (3.5 times the human dose on an exposure basis). 8.2 Lactation Risk Summary There are no data on the presence of dalbavancin or its metabolite in human milk, the effects on the breast-fed child, or the effects on milk production. Dalbavancin is excreted in the milk of lactating rats. When a drug is present in animal milk, it is likely that the drug will be present in human milk. The developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for dalbavancin for injection and any potential adverse effects on the breast-fed child from dalbavancin for injection or from the underlying maternal condition. 8.4 Pediatric Use The safety and effectiveness of dalbavancin for injection for the treatment of ABSSSI has been established in pediatric patients aged birth to less than 18 years. Use of dalbavancin for injection for this indication is supported by evidence from adequate and well-controlled studies in adults with additional pharmacokinetic and safety data in pediatric patients aged birth to less than 18 years [see Adverse Reactions (6.1), Clinical Pharmacology (12.3), and Clinical Studies (14.1) ]. There is insufficient information to recommend dosage adjustment for pediatric patients with ABSSSI and CLcr less than 30 mL/min/1.73m 2 [see Dosage and Administration (2.2) ]. 8.5 Geriatric Use Of the 2,473 patients treated with dalbavancin for injection in Phase 2 and 3 clinical trials, 403 patients (16.3%) were 65 years of age or older. The efficacy and tolerability of dalbavancin for injection were similar to comparator regardless of age. The pharmacokinetics of dalbavancin for injection was not significantly altered with age; therefore, no dosage adjustment is necessary based on age alone. Dalbavancin for injection is substantially excreted by the kidney, and the risk of adverse reactions may be greater in patients with impaired renal function. Because elderly patients are more likely to have decreased renal function, care should be taken in dose selection in this age group. 8.6 Renal Impairment In patients with renal impairment whose known CLcr is less than 30 mL/min and who are not receiving regularly scheduled hemodialysis, the recommended regimen for dalbavancin for injection is 1,125 mg, administered as a single dose. No dosage adjustment is recommended for patients receiving regularly scheduled hemodialysis, and dalbavancin for injection can be adminis …

12.1 Mechanism of Action Dalbavancin is an antibacterial drug [see Microbiology ( 12.4 )] .

11 DESCRIPTION Dalbavancin for Injection is a lipoglycopeptide antibacterial synthesized from a fermentation product of Nonomuraea species. Dalbavancin is a mixture of five closely related active homologs (A 0 , A 1 , B 0 , B 1 , and B 2 ); the component B 0 is the major component of dalbavancin. The homologs share the same core structure and differ in the fatty acid side chain of the N-acylaminoglucuronic acid moiety (R 1 ) structure and/or the presence of an additional methyl group (R 2 ) on the terminal amino group (shown in the Figure 1 and Table 3 below). Figure 1. Dalbavancin Structural Formula Table 3. Substitution Patterns for Dalbavancin API Homologs Dalbavancin R 1 R 2 Molecular Formula Molecular Weight * A 0 CH(CH 3 ) 2 H C 87 H 98 N 10 O 28 Cl 2 · 1.6 HCl 1,802.7 A 1 CH 2 CH 2 CH 3 H C 87 H 98 N 10 O 28 Cl 2 · 1.6 HCl 1,802.7 B 0 CH 2 CH(CH 3 ) 2 H C 88 H 100 N 10 O 28 Cl 2 · 1.6 HCl 1,816.7 B 1 CH 2 CH 2 CH 2 CH 3 H C 88 H 100 N 10 O 28 Cl 2 · 1.6 HCl 1,816.7 B 2 CH 2 CH(CH 3 ) 2 CH 3 C 89 H 102 N 10 O 28 Cl 2 · 1.6 HCl 1,830.7 *Anhydrous free base The B 0 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. Dalbavancin for Injection 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 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 ( 2.4 ) , How Supplied/Storage and Handling ( 16 ) ] . Figure 1

10 OVERDOSAGE Specific information is not available on the treatment of overdose with dalbavancin for injection, as dose-limiting toxicity has not been observed in clinical studies. In Phase 1 studies, healthy volunteers have been administered cumulative doses of up to 4,500 mg over a period of up to 8 weeks (not an approved dosing regimen), with no signs of toxicity or laboratory results of clinical concern. Treatment of overdose with dalbavancin for injection should consist of observation and general supportive measures. Although no information is available specifically regarding the use of hemodialysis to treat overdose, in a Phase 1 study in patients with renal impairment less than 6% of the recommended dalbavancin dose was removed [see Clinical Pharmacology (12.3)] .

16 HOW SUPPLIED/STORAGE AND HANDLING Dalbavancin for Injection is a white to off-white to pale yellow sterile lyophilized powder in a single-dose glass vial containing dalbavancin hydrochloride equivalent to 500 mg dalbavancin and supplied as follows: NDC Dalbavancin for Injection (500 mg per vial) Package Factor 71288- 034 -50 500 mg Single-Dose Vial 1 vial per carton Dalbavancin for Injection should be stored at 25oC (77oF); excursions permitted to 15o to 30oC (59o to 86oF) [see USP Controlled Room Temperature]. Storage of the reconstituted and diluted solutions of Dalbavancin for Injection are described elsewhere in the prescribing information [see Dosage and Administration ( 2.4 )]. Sterile, Nonpyrogenic, Preservative-free. The container closure is not made with natural rubber latex.