Iron sucrose

12.1 Mechanism of Action Iron sucrose is an aqueous complex of poly-nuclear iron (III)-hydroxide in sucrose. Following intravenous administration, iron sucrose is dissociated into iron and sucrose and the iron is transported as a complex with transferrin to target cells including erythroid precursor cells. The iron in the precursor cells is incorporated into hemoglobin as the cells mature into red blood cells.

1 INDICATIONS AND USAGE Iron sucrose injection is indicated for the treatment of iron deficiency anemia (IDA) in patients with chronic kidney disease (CKD). Iron sucrose injection is an iron replacement product indicated for the treatment of iron deficiency anemia (IDA) in patients with chronic kidney disease (CKD). ( 1 )

2 DOSAGE AND ADMINISTRATION Population Dose Adult patients Hemodialysis Dependent-Chronic Kidney Disease (HDD-CKD) ( 2.2 ) 100 mg slow intravenous injection or infusion Non-Dialysis Dependent-Chronic Kidney Disease (NDD-CKD) ( 2.3 ) 200 mg slow intravenous injection or infusion Peritoneal Dialysis Dependent-Chronic Kidney Disease (PDD-CKD) ( 2.4 ) 300 mg or 400 mg intravenous infusion Pediatric patients HDD-CKD ( 2.5 ), PDD-CKD or NDD-CKD ( 2.6 ) 0.5 mg/kg slow intravenous injection or infusion 2.1 Mode of Administration Administer iron sucrose injection only intravenously by slow injection or by infusion. The dosage of iron sucrose injection is expressed in mg of elemental iron. Each mL contains 20 mg of elemental iron. 2.2 Adult Patients with Hemodialysis Dependent-Chronic Kidney Disease (HDD-CKD) Administer iron sucrose injection 100 mg undiluted as a slow intravenous injection over 2 to 5 minutes, or as an infusion of 100 mg diluted in a maximum of 100 mL of 0.9% NaCl over a period of at least 15 minutes, per consecutive hemodialysis session [see How Supplied/Storage and Handling (16.2) ] . Administer iron sucrose injection early during the dialysis session (generally within the first hour). The usual total treatment course of iron sucrose injection is 1000 mg. Iron sucrose injection treatment may be repeated if iron deficiency reoccurs. 2.3 Adult Patients with Non-Dialysis Dependent-Chronic Kidney Disease (NDD-CKD) Administer iron sucrose injection 200 mg undiluted as a slow intravenous injection over 2 to 5 minutes or as an infusion of 200 mg in a maximum of 100 mL of 0.9% NaCl over a period of 15 minutes. Administer on 5 different occasions over a 14 day period. There is limited experience with administration of an infusion of 500 mg of iron sucrose injection, diluted in a maximum of 250 mL of 0.9% NaCl, over a period of 3.5 to 4 hours on Day 1 and Day 14 [see How Supplied/Storage and Handling (16.2) ] . Iron sucrose injection treatment may be repeated if iron deficiency reoccurs. 2.4 Adult Patients with Peritoneal Dialysis Dependent-Chronic Kidney Disease (PDD-CKD) Administer iron sucrose injection in 3 divided doses, given by slow intravenous infusion, within a 28 day period: 2 infusions each of 300 mg over 1.5 hours 14 days apart followed by one 400 mg infusion over 2.5 hours 14 days later. Dilute iron sucrose injection in a maximum of 250 mL of 0.9% NaCl [see How Supplied/Storage and Handling (16.2) ] . Iron sucrose injection treatment may be repeated if iron deficiency reoccurs. 2.5 Pediatric Patients (2 Years of Age and Older) with HDD-CKD for Iron Maintenance Treatment For iron maintenance treatment: Administer iron sucrose injection at a dose of 0.5 mg/kg, not to exceed 100 mg per dose, every two weeks for 12 weeks given undiluted by slow intravenous injection over 5 minutes or diluted in 0.9% NaCl at a concentration of 1 mg/mL to 2 mg/mL and administered over 5 to 60 minutes. Do not dilute to concentrations below 1 mg/mL [see How Supplied / Storage and Handling (16.2) ] . Iron sucrose injection treatment may be repeated if necessary. The dosing for iron replacement treatment in pediatric patients with HDD-CKD has not been established. 2.6 Pediatric Patients (2 Years of Age and Older) with NDD-CKD or PDD-CKD who are on Erythropoietin Therapy for Iron Maintenance Treatment For iron maintenance treatment: Administer iron sucrose injection at a dose of 0.5 mg/kg, not to exceed 100 mg per dose, every four weeks for 12 weeks given undiluted by slow intravenous injection over 5 minutes or diluted in 0.9% NaCl at a concentration of 1 mg/mL to 2 mg/mL and administered over 5 to 60 minutes. Do not dilute to concentrations below 1 mg/mL [see How Supplied /Storage and Handling (16.2) ] . Iron sucrose injection treatment may be repeated if necessary. The dosing for iron replacement treatment in pediatric patients with NDD-CKD or PDD-CKD has not been established.

6 ADVERSE REACTIONS The following clinically significant adverse reactions are described elsewhere in the labeling: • Hypersensitivity Reactions [see Warnings and Precautions (5.1) ] • Hypotension [see Warnings and Precautions (5.2) ] • Iron Overload [see Warnings and Precautions (5.3) ] • Adult patients: The most common adverse reactions (≥2%) are diarrhea, nausea, vomiting, headache, dizziness, hypotension, pruritus, pain in extremity, arthralgia, back pain, muscle cramp, injection site reactions, chest pain, and peripheral edema. ( 6.1 ) • Pediatric patients: The most common adverse reactions (≥2%) are headache, respiratory tract viral infection, peritonitis, vomiting, pyrexia, dizziness, cough, nausea, arteriovenous fistula thrombosis, hypotension, and hypertension. ( 6.1) To report SUSPECTED ADVERSE REACTIONS, contact Mylan at 1-877-446-3679 (1-877-4-INFO-RX) or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch. 6.1 Adverse Reactions in Clinical Trials Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug may not reflect the rates observed in practice. Adverse Reactions in Adult Patients with CKD The frequency of adverse reactions associated with the use of iron sucrose has been documented in six clinical trials involving 231 patients with HDD-CKD, 139 patients with NDD-CKD and 75 patients with PDD-CKD. Adverse reactions reported by ≥ 2% of treated patients in the six clinical trials for which the rate for iron sucrose exceeds the rate for comparator are listed by indication in Table 1. Patients with HDD-CKD received 100 mg doses at 10 consecutive dialysis sessions until a cumulative dose of 1000 mg was administered. Patients with NDD-CKD received either 5 doses of 200 mg over 2 weeks or 2 doses of 500 mg separated by fourteen days, and patients with PDD-CKD received 2 doses of 300 mg followed by a dose of 400 mg over a period of 4 weeks. Table 1. Adverse Reactions Reported in ≥ 2% of Study Populations and for which the Rate for Iron Sucrose Exceeds the Rate for Comparator Body System/Adverse Reactions HDD-CKD NDD-CKD PDD-CKD Iron Sucrose (N=231) % Iron Sucrose (N=139) % Oral Iron (N=139) % Iron Sucrose (N=75) % EPO EPO=Erythropoietin Only (N=46) % Subjects with any adverse reaction 78.8 76.3 73.4 72.0 65.2 Ear and Labyrinth Disorders Ear Pain 0 2.2 0.7 0 0 Eye Disorders Conjunctivitis 0.4 0 0 2.7 0 Gastrointestinal Disorders Abdominal pain 3.5 1.4 2.9 4.0 6.5 Diarrhea 5.2 7.2 10.1 8.0 4.3 Dysgeusia 0.9 7.9 0 0 0 Nausea 14.7 8.6 12.2 5.3 4.3 Vomiting 9.1 5.0 8.6 8.0 2.2 General Disorders and Administration Site Conditions Asthenia 2.2 0.7 2.2 2.7 0 Chest pain 6.1 1.4 0 2.7 0 Feeling abnormal 3.0 0 0 0 0 Infusion site pain or burning 0 5.8 0 0 0 Injection site extravasation 0 2.2 0 0 0 Peripheral edema 2.6 7.2 5.0 5.3 10.9 Pyrexia 3.0 0.7 0.7 1.3 0 Infections and Infestations Nasopharyngitis, Sinusitis, Upper respiratory tract infections, Pharyngitis 2.6 2.2 4.3 16.0 4.3 Injury, Poisoning and Procedural Complications Graft complication 9.5 1.4 0 0 0 Metabolism and Nutrition Disorders Fluid overload 3.0 1.4 0.7 1.3 0 Gout 0 2.9 1.4 0 0 Hyperglycemia 0 2.9 0 0 2.2 Hypoglycemia 0.4 0.7 0.7 4.0 0 Musculoskeletal and Connective Tissue Disorders Arthralgia 3.5 1.4 2.2 4.0 4.3 Back pain 2.2 2.2 3.6 1.3 4.3 Muscle cramp 29.4 0.7 0.7 2.7 0 Myalgia 0 3.6 0 1.3 0 Pain in extremity 5.6 4.3 0 2.7 6.5 Nervous System Disorders Dizziness 6.5 6.5 1.4 1.3 4.3 Headache 12.6 2.9 0.7 4.0 0 Respiratory, Thoracic and Mediastinal Disorders Cough 3.0 2.2 0.7 1.3 0 Dyspnea 3.5 5.8 1.4 1.3 2.2 Nasal congestion 0 1.4 2.2 1.3 0 Skin and Subcutaneous Tissue Disorders Pruritus 3.9 2.2 4.3 2.7 0 Vascular Disorders Hypertension 6.5 6.5 4.3 8.0 6.5 Hypotension 39.4 2.2 0.7 2.7 2.2 One hundred thirty (11%) of the 1,151 patients evaluated in the 4 U.S. trials in HDD-CKD patients (studies A, B and the two post marketing studies) had prior other intravenous iron therapy and were reported to be intolerant (defined as precluding further use of that iron product). When these patients were treated with iron sucrose there were no occurrences of adverse reactions that precluded further use of iron sucrose [see Warning and Precautions (5) ] . Adverse Reactions in Pediatric Patients with CKD (ages 2 years and older) In a randomized, open-label, dose-ranging trial for iron maintenance treatment with iron sucrose in pediatric patients with CKD on stable erythropoietin therapy [ see Clinical Studies (14.7) ] , at least one adverse reaction was experienced by 57% (27/47) of the patients receiving iron sucrose 0.5 mg/kg, 53% (25/47) of the patients receiving iron sucrose 1 mg/kg, and 55% (26/47) of the patients receiving iron sucrose 2 mg/kg. A total of 5 (11%) subjects in the iron sucrose 0.5 mg/kg group, 10 (21%) patients in the iron sucrose 1 mg/kg group, and 10 (21%) patients in the iron sucrose 2 mg/kg group experienced at least 1 serious adverse reaction during the study

7 DRUG INTERACTIONS Iron sucrose may reduce the absorption of concomitantly administered oral iron preparations.