Liraglutide

1 INDICATIONS AND USAGE Liraglutide injection is indicated: as an adjunct to diet and exercise to improve glycemic control in adults and pediatric patients aged 10 years and older with type 2 diabetes mellitus Limitations of Use: Liraglutide injection contains liraglutide. Coadministration with other liraglutide-containing products is not recommended. Liraglutide injection is a glucagon-like peptide-1 (GLP-1) receptor agonist indicated: as an adjunct to diet and exercise to improve glycemic control in adults and pediatric patients aged 10 years and older with type 2 diabetes mellitus ( 1 ). Limitations of Use : Coadministration with other liraglutide-containing products is not recommended.

2 DOSAGE AND ADMINISTRATION Adult Patients: Initiate at 0.6 mg injected subcutaneously once daily for one week then increase to 1.2 mg daily. If additional glycemic control is required, increase the dose to 1.8 mg daily after one week of treatment with the 1.2 mg daily dose. ( 2.1 ) Pediatric Patients: Initiate at 0.6 mg injected subcutaneously once daily for at least one week. If additional glycemic control is required increase the dose to 1.2 mg daily and if additional glycemic control is still required, increase the dose to 1.8 mg daily after at least one week of treatment with the 1.2 mg daily dose. ( 2.1 ) Inspect visually prior to each injection. Only use if solution is clear, colorless, and contains no particles. ( 2.3 ) Inject liraglutide injection subcutaneously once-daily at any time of day, independently of meals, in the abdomen, thigh or upper arm. ( 2.3 ) When using liraglutide injection with insulin, administer as separate injections. Never mix. ( 2.3 ) 2.1 Recommended Dosage Adult Patients The recommended starting dosage of liraglutide injection is 0.6 mg injected subcutaneously once daily for one week. The 0.6 mg once daily dosage is intended to reduce the risk of gastrointestinal adverse reactions [see Warnings and Precautions ( 5.6 ), Adverse Reactions ( 6.1 )] during initial titration and is not effective for glycemic control in adults. After one week at the 0.6 mg once daily dosage, increase the dosage to 1.2 mg injected subcutaneously once daily. If additional glycemic control is required, increase the dosage to the maximum recommended dosage of 1.8 mg injected subcutaneously once daily after at least one week of treatment with the 1.2 mg once daily dosage. Pediatric Patients Aged 10 Years and Older The recommended starting dosage of liraglutide injection is 0.6 mg injected subcutaneously once daily. If additional glycemic control is required, increase the dosage in 0.6 mg increments after at least one week on the current dosage, to reduce the risk of gastrointestinal adverse reactions [see Warnings and Precautions ( 5.6 ), Adverse Reactions ( 6.1 )] . The maximum recommended dosage is 1.8 mg injected subcutaneously once daily. 2.2 Recommendations Regarding Missed Dose Instruct patients who miss a dose of liraglutide injection to resume the once -daily dosage regimen as prescribed with the next scheduled dose. Do not administer an extra dose or increase the dose to make up for the missed dose. If more than 3 days have elapsed since the last liraglutide injection dose, reinitiate liraglutide injection at 0.6 mg once daily to reduce the risk of gastrointestinal adverse reactions associated with reinitiation of treatment. Upon reinitiation, liraglutide injection should be titrated at the discretion of the healthcare provider. 2.3 Important Administration Instructions Inspect visually prior to each injection. Only use if solution is clear, colorless, and contains no particles. Inject liraglutide injection subcutaneously once daily at any time of day, independently of meals. Inject liraglutide injection subcutaneously in the abdomen, thigh or upper arm. No dosage adjustment is needed if changing the injection site and/or timing. Rotate injection sites within the same region in order to reduce the risk of cutaneous amyloidosis [see Adverse Reactions ( 6.2 )] . When using liraglutide injection with insulin, administer as separate injections. Never mix. It is acceptable to inject liraglutide injection and insulin in the same body region but the injections should not be adjacent to each other.

6 ADVERSE REACTIONS The following serious adverse reactions are described below or elsewhere in the prescribing information: Risk of Thyroid C-cell Tumors [see Warnings and Precautions ( 5.1 )] Acute Pancreatitis [see Warnings and Precautions ( 5.2 )] Hypoglycemia [see Warnings and Precautions ( 5.4 )] Acute Kidney Injury Due to Volume Depletion [see Warnings and Precautions ( 5.5 )] Severe Gastrointestinal Adverse Reactions [see Warnings and Precautions ( 5.6 )] Hypersensitivity Reactions [see Warnings and Precautions ( 5.7 )] Acute Gallbladder Disease [see Warnings and Precautions ( 5.8 )] Pulmonary Aspiration During General Anesthesia or Deep Sedation [see Warnings and Precautions ( 5.9 )] Most common adverse reactions (incidence ≥5%) in clinical trials are nausea, diarrhea, vomiting, decreased appetite, dyspepsia, constipation. ( 6.1 ) Immunogenicity-related events, including urticaria, were more common among liraglutide injection-treated patients (0.8%) than among comparator-treated patients (0.4%) in clinical trials. ( 12.6 ) To report SUSPECTED ADVERSE REACTIONS, contact Lupin Pharmaceuticals, Inc. at 1-800-399-2561 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 the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in practice. Common Adverse Reactions The safety of liraglutide injection in patients with type 2 diabetes mellitus was evaluated in 5 glycemic control, placebo-controlled trials in adults and one trial of 52 weeks duration in pediatric patients 10 years of age and older [see Clinical Studies ( 14.1 )] . The data in Table 1 reflect exposure of 1,673 adult patients to liraglutide injection and a mean duration of exposure to liraglutide injection of 37.3 weeks. The mean age of adult patients was 58 years, 4% were 75 years or older and 54% were male. The population was 79% White, 6% Black or African American, 13% Asian; 4% were of Hispanic or Latino ethnicity. At baseline the population had diabetes for an average of 9 years and a mean HbA 1c of 8.4%. Baseline estimated renal function was normal or mildly impaired in 88% and moderately impaired in 12% of the pooled population. Table 1 shows common adverse reactions in adults, excluding hypoglycemia, associated with the use of liraglutide injection for the treatment of type 2 diabetes mellitus. These adverse reactions occurred more commonly on liraglutide injection than on placebo and occurred in at least 5% of patients treated with liraglutide injection. Overall, the type, and severity of adverse reactions in pediatric patients 10 years of age and older and above were comparable to that observed in the adult population. Table 1: Adverse reactions reported in ≥ 5% of Adult Patients Treated with Liraglutide Injection for Type 2 Diabetes Mellitus Cumulative proportions were calculated combining studies using Cochran-Mantel-Haenszel weights. Placebo N=661 Liraglutide 1.2 mg N= 645 Liraglutide 1.8 mg N= 1024 Adverse Reaction (%) (%) (%) Nausea 5 18 20 Diarrhea 4 10 12 Headache 7 11 10 Nasopharyngitis 8 9 10 Vomiting 2 6 9 Decreased appetite 1 10 9 Dyspepsia 1 4 7 Upper Respiratory Tract Infection 6 7 6 Constipation 1 5 5 Back Pain 3 4 5 In an analysis of placebo- and active-controlled trials, the types and frequency of common adverse reactions, excluding hypoglycemia, were similar to those listed in Table 1 . Other Adverse Reactions Gastrointestinal Adverse Reactions: In the pool of 5 glycemic control, placebo-controlled adult clinical trials, withdrawals due to gastrointestinal adverse reactions, occurred in 4.3% of liraglutide injection-treated patients and 0.5% of placebo-treated patients. Severe gastrointestinal adverse reactions were reported more frequently among patients receiving liraglutide injection (1.2 mg 4.4 %, 1.8 mg 4.2 %) than placebo (1.1 %). Withdrawal due to gastrointestinal adverse events mainly occurred during the first 2 to 3 months of the trials. Injection site reactions: Injection site reactions (e.g., injection site rash, erythema) were reported in approximately 2% of liraglutide injection-treated adult patients in the five double-blind, glycemic control trials of at least 26 weeks duration. Less than 0.2% of liraglutide injection-treated patients discontinued due to injection site reactions. Hypoglycemia: In 5 adult glycemic control, placebo-controlled clinical trials of at least 26 weeks duration, hypoglycemia requiring the assistance of another person for treatment occurred in 8 liraglutide injection-treated patients (7.5 events per 1,000 patient-years). Of these 8 liraglutide injection-treated patients, 7 patients were concomitantly using a sulfonylurea. Table 2: Adult Incidence (%) and Rate (episodes/patient year) of Hypoglycemia in 26-Week Combination Therapy Placebo- controlled Trials "Patient not able to self-treat" is defined as an event requiring the assistance of another person for treatment. Placebo Comparator Liraglutide Injection Treatment Add-on to Metformin Placebo + Metformin (N = 121) Liraglutide Injection + Metformin (N = 724) Patient not able to self-treat 0 0.1 (0.001) Patient able to self-treat 2.5 (0.06) 3.6 (0.05) Add-on to Glimepiride Placebo + Glimepiride (N = 114) Liraglutide Injection + Glimepiride (N = 695) Patient not able to self-treat 0 0.1 (0.003) Patient able to self-treat 2.6 (0.17) 7.5 (0.38) Not classified 0 0.9 (0.05) Add-on to Metformin + Rosiglitazone Placebo + Metformin + Rosiglitazone (N = 175) Liraglutide Injection + Metformin + Rosiglitazone (N = 355) Patient not able to self-treat 0 0 Patient able to self-treat 4.6 (0.15) 7.9 (0.49) Not classified 1.1 (0.03) 0.6 (0.01) Add-on to Metformin + Glimepiride Placebo + Metformin + Glimepiride (N = 114) Liraglutide Injection + Metformin + Glimepiride (N = 230) Patient not able to self-treat 0 2.2 (0.06) Patient able to self-treat 16.7 (0.95) 27.4 (1.16) Not classified 0 0 In a 26-week placebo-controlled clinical trial in pediatric patients 10 years of age and older with a 26-week open-label extension, 21.2% of liraglutide injection-treated patients (mean age 14.6 years) with type 2 diabetes mellitus, had hypoglycemia with a blood glucose <54 mg/dL with or without symptoms (335 events per 1,000 patient years). No severe hypoglycemic episodes occurred in the liraglutide injection treatment group (severe hypoglycemia was defined as an episode requiring assistance of another person to actively administer carbohydrate, glucagon, or other resuscitative actions). Papillary thyroid carcinoma: In adult glycemic control trials of liraglutide injection, there were 7 reported cases of papillary thyroid carcinoma in patients treated with liraglutide injection and 1 case in a comparator-treated patient (1.5 vs. 0.5 cases per 1,000 patient- years). Most of these papillary thyroid carcinomas were <1 cm in greatest diameter and were diagnosed in surgical pathology specimens after thyroidectomy prompted by findings on protocol-specified screening with serum calcitonin or thyroid ultrasound. Pancreatitis In glycemic control trials of liraglutide injection, there have been 13 cases of pancreatitis among liraglutide injection -treated patients and 1 case in a comparator (glimepiride) treated patient (2.7 vs. 0.5 cases per 1,000 patient-years). Nine of the 13 cases with liraglutide injection were reported as acute pancreatitis and four were reported as chronic pancreatitis. In one case in a liraglutide injection-treated patient, pancreatitis, with necrosis, was observed and led to death; however clinical causality could not be established. Some patients had other risk factors for pancreatitis, such as a history of cholelithiasis or alcohol abuse. Cholelithiasis and cholecystitis: In adult glycemic control trials of liraglutide injection, the incidence of cholelithiasis was 0.3% in both liraglutide injection- treated and placebo-treated patients. The incidence of cholecystitis was 0.2% in both liraglutide injection-treated and placebo-treated patients. Laboratory Tests Bilirubin: In the five adult glycemic control trials of at least 26 weeks duration, mildly elevated serum bilirubin concentrations (elevations to no more than twice the upper limit of the reference range) occurred in 4% of liraglutide injection-treated patients, 2.1% of placebo-treated patients and 3.5% of active-comparator-treated patients. This finding was not accompanied by abnormalities in other liver tests. The significance of this isolated finding is unknown. Calcitonin: Calcitonin, a biological marker of MTC, was measured throughout the clinical development program. At the end of the adult glycemic control trials, adjusted mean serum calcitonin concentrations were higher in liraglutide injection-treated patients compared to placebo-treated patients but not compared to patients receiving active comparator. Between group differences in adjusted mean serum calcitonin values were approximately 0.1 ng/L or less. Among adult patients with pretreatment calcitonin <20 ng/L, calcitonin elevations to >20 ng/L occurred in 0.7% of liraglutide injection-treated patients, 0.3% of placebo-treated patients, and 0.5% of active-comparator-treated patients. The clinical significance of these findings is unknown. Lipase and Amylase: In one adult glycemic control trial in renal impairment patients, a mean increase of 33% for lipase and 15% for amylase from baseline was observed for liraglutide injection-treated patients while placebo-treated patients had a mean decrease in lipase of 3% and a mean increase in amylase of 1%. The clinical significance of elevations in lipase or amylase with liraglutide injection is unknown in the absence of other signs and symptoms of pancreatitis [see Warnings and Precautions ( 5.2 )]. Vital signs Liraglutide injection did not have adverse effects on blood pressure. Mean increases from baseline in heart rate of 2 to 3 beats per minute have been observed in adult patients treated with liraglutide injection compared to placebo. 6.2 Postmarketing Experience The following additional adverse reactions have been reported during post-approval use of liraglutide injection. Because these events are reported voluntarily from a population of uncertain size, it is generally not possible to reliably estimate their frequency or establish a causal relationship to drug exposure. G astrointestinal: Acute pancreatitis; hemorrhagic and necrotizing pancreatitis sometimes resulting in death; ileus, intestinal obstruction, severe constipation including fecal impaction, nausea, vomiting and diarrhea leading to dehydration H epatobiliary: Elevations of liver enzymes, hyperbilirubinemia, cholestasis, cholecystitis, cholelithiasis requiring cholecystectomy, hepatitis Hypersensitivity: Angioedema, anaphylactic reactions, pruritus N eoplasms: Medullary thyroid carcinoma Neurologic: Dysgeusia, dizziness, dysesthesia P ulmonary: Pulmonary aspiration has occurred in patients receiving GLP-1 receptor agonists undergoing elective surgeries or procedures requiring general anesthesia or deep sedation. Renal : Acute renal failure or worsening of chronic renal failure, sometimes requiring hemodialysis; and increased serum creatinine Skin and subcutaneous tissue: Cutaneous amyloidosis, alopecia

12.3 Pharmacokinetics Absorption Following subcutaneous administration, maximum concentrations of liraglutide are achieved at 8 to 12 hours post dosing. The mean peak (C max ) and total (AUC) exposures of liraglutide were 35 ng/mL and 960 ng·h/mL, respectively, for a subcutaneous single dose of 0.6 mg. After subcutaneous single dose administrations, C max and AUC of liraglutide increased proportionally over the therapeutic dose range of 0.6 mg to 1.8 mg. At 1.8 mg liraglutide injection, the average steady state concentration of liraglutide over 24 hours was approximately 128 ng/mL. AUC 0 to ∞ was equivalent between upper arm and abdomen, and between upper arm and thigh. AUC 0 to ∞ from thigh was 22% lower than that from abdomen. However, liraglutide exposures were considered comparable among these three subcutaneous injection sites. Absolute bioavailability of liraglutide following subcutaneous administration is approximately 55%. Distribution The mean apparent volume of distribution after subcutaneous administration of liraglutide injection 0.6 mg is approximately 13 L. The mean volume of distribution after intravenous administration of liraglutide injection is 0.07 L/kg. Liraglutide is extensively bound to plasma protein (>98%). Elimination The mean apparent clearance following subcutaneous administration of a single dose of liraglutide is approximately 1.2 L/h with an elimination half-life of approximately 13 hours. Metabolism During the initial 24 hours following administration of a single [ 3 H]-liraglutide dose to healthy subjects, the major component in plasma was intact liraglutide. Liraglutide is endogenously metabolized in a similar manner to large proteins without a specific organ as a major route of elimination. Excretion Following a [ 3 H]-liraglutide dose, intact liraglutide was not detected in urine or feces. Only a minor part of the administered radioactivity was excreted as liraglutide-related metabolites in urine or feces (6% and 5%, respectively). The majority of urine and feces radioactivity was excreted during the first 6 to 8 days. Specific Populations Geriatric Patients: Age had no effect on the pharmacokinetics of liraglutide injection based on a pharmacokinetic study in healthy elderly subjects (65 to 83 years) and population pharmacokinetic analyses of patients 18 to 80 years of age [see Use in Specific Populations ( 8.5 )] . Pediatric Patients: A population pharmacokinetic analysis was conducted for liraglutide injection using data from 72 pediatric patients (10 to 17 years of age) with type 2 diabetes mellitus. The pharmacokinetic profile of liraglutide injection in pediatric patients was consistent with that in adults. Male and Female Patients: Based on the results of population pharmacokinetic analyses, females have 25% lower weight-adjusted clearance of liraglutide injection compared to males. Race or Ethnic Groups: Race and ethnicity had no effect on the pharmacokinetics of liraglutide injection based on the results of population pharmacokinetic analyses that included White, Black or African American, Asian and Hispanic or Latino/Non-Hispanic or Latino subjects. Body Weight: Body weight significantly affects the pharmacokinetics of liraglutide injection based on results of population pharmacokinetic analyses. The exposure of liraglutide decreases with an increase in baseline body weight. However, the 1.2 mg and 1.8 mg daily doses of liraglutide injection provided adequate systemic exposures over the body weight range of 40 kg to 160 kg evaluated in the clinical trials. Liraglutide was not studied in patients with body weight >160 kg. Patients with Renal Impairment : The single-dose pharmacokinetics of liraglutide injection were evaluated in patients with varying degrees of renal impairment. Patients with mild (estimated creatinine clearance 50 to 80 mL/min) to severe (estimated creatinine clearance <30 mL/min) renal impairment and subjects with end-stage renal disease requiring dialysis were included in the trial. Compared to healthy subjects, liraglutide AUC in mild, moderate, and severe renal impairment and in end-stage renal disease was on average 35%, 19%, 29% and 30% lower, respectively [see Use in Specific Populations ( 8.6 )] . Patients with Hepatic Impairment: The single-dose pharmacokinetics of liraglutide injection were evaluated in patients with varying degrees of hepatic impairment. Patients with mild (Child Pugh score 5 to 6) to severe (Child Pugh score > 9) hepatic impairment were included in the trial. Compared to healthy subjects, liraglutide AUC in patients with mild, moderate and severe hepatic impairment was on average 11%, 14% and 42% lower, respectively [see Use in Specific Populations ( 8.7 )] . Drug Interaction Studies In vitro assessment of drug-drug interactions: Liraglutide injection has low potential for pharmacokinetic drug-drug interactions related to cytochrome P450 (CYP P450) and plasma protein binding. In vivo assessment of drug-drug interactions: The drug-drug interaction studies were performed at steady state with liraglutide injection 1.8 mg/day. Before administration of concomitant treatment, subjects underwent a 0.6 mg weekly dose increase to reach the maximum dose of 1.8 mg/day. Administration of the interacting drugs was timed so that C max of liraglutide injection (8 h to 12 h) would coincide with the absorption peak of the co-administered drugs. Digoxin A single dose of digoxin 1 mg was administered 7 hours after the dose of liraglutide injection at steady state. The concomitant administration with liraglutide injection resulted in a reduction of digoxin AUC by 16%; C max decreased by 31%. Digoxin median time to maximal concentration (T max ) was delayed from 1 h to 1.5 h. Lisinopril A single dose of lisinopril 20 mg was administered 5 minutes after the dose of liraglutide injection at steady state. The coadministration with liraglutide injection resulted in a reduction of lisinopril AUC by 15%; C max decreased by 27%. Lisinopril median T max was delayed from 6 h to 8 h with liraglutide injection. Atorvastatin Liraglutide injection did not change the overall exposure (AUC) of atorvastatin following a single dose of atorvastatin 40 mg, administered 5 hours after the dose of liraglutide injection at steady state. Atorvastatin C max was decreased by 38% and median T max was delayed from 1 h to 3 h with liraglutide injection. Acetaminophen Liraglutide injection did not change the overall exposure (AUC) of acetaminophen following a single dose of acetaminophen 1000 mg, administered 8 hours after the dose of liraglutide injection at steady state. Acetaminophen C max was decreased by 31% and median T max was delayed up to 15 minutes. Griseofulvin Liraglutide injection did not change the overall exposure (AUC) of griseofulvin following coadministration of a single dose of griseofulvin 500 mg with liraglutide injection at steady state. Griseofulvin C max increased by 37% while median T max did not change. Oral Contraceptives A single dose of an oral contraceptive combination product containing 0.03 mg ethinylestradiol and 0.15 mg levonorgestrel was administered under fed conditions and 7 hours after the dose of liraglutide injection at steady state. Liraglutide injection lowered ethinylestradiol and levonorgestrel C max by 12% and 13%, respectively. There was no effect of liraglutide injection on the overall exposure (AUC) of ethinylestradiol. Liraglutide injection increased the levonorgestrel AUC 0 to ∞ by 18%. Liraglutide injection delayed T max for both ethinylestradiol and levonorgestrel by 1.5 h. Insulin Detemir No pharmacokinetic interaction was observed between liraglutide injection and insulin detemir when separate subcutaneous injections of insulin detemir 0.5 Unit/kg (single-dose) and liraglutide injection 1.8 mg (steady state) were administered in patients with type 2 diabetes mellitus.