Liraglutide

SAXENDA is indicated in combination with a reduced calorie diet and increased physical activity to reduce excess body weight and maintain weight reduction long term in:

• Adults and pediatric patients aged 12 years and older with body weight greater than 60 kg and obesity.
• Adults with overweight in the presence of at least one weight-related comorbid condition. Limitations of Use
• SAXENDA contains liraglutide. Coadministration with other liraglutide-containing products or with any other glucagon-like peptide-1 (GLP-1) receptor agonist is not recommended.
• The safety and effectiveness of SAXENDA in pediatric patients with type 2 diabetes have not been established. SAXENDA is a glucagon like peptide 1 (GLP-1) receptor agonist indicated in combination with a reduced calorie diet and increased physical activity to reduce excess body weight and maintain weight reduction long term in:
• Adults and pediatric patients aged 12 years and older with body weight greater than 60 kg and obesity. ( 1 )
• Adults with overweight in the presence of at least one weight-related comorbid condition. ( 1 ) Limitations of Use:
• Coadministration with other liraglutide-containing products or with any other GLP-1 receptor agonist is not recommended. ( 1 )
• The safety and effectiveness of SAXENDA in pediatric patients with type 2 diabetes have not been established. ( 1 )

Injection: 6 mg/mL clear, colorless solution in a 3 mL prefilled, single-patient-use pen that delivers doses of 0.6 mg, 1.2 mg, 1.8 mg, 2.4 mg, or 3 mg. Injection: 6 mg/mL solution in a 3 mL prefilled, single-patient-use pen that delivers doses of 0.6 mg, 1.2 mg, 1.8 mg, 2.4 mg or 3 mg. ( 3 )

SAXENDA is contraindicated in:

• Patients with a personal or family history of medullary thyroid carcinoma (MTC) or patients with Multiple Endocrine Neoplasia syndrome type 2 (MEN 2) [see Warnings and Precautions ( 5.1 )].
• Patients with a serious hypersensitivity reaction to liraglutide or to any of the excipients in SAXENDA. Serious hypersensitivity reactions including anaphylactic reactions and angioedema have been reported with SAXENDA [see Warnings and Precautions ( 5.8 )].
• Personal or family history of medullary thyroid carcinoma or Multiple Endocrine Neoplasia syndrome type 2. ( 4 )
• Hypersensitivity to liraglutide or any excipients in SAXENDA. ( 4 )

• Acute Pancreatitis: Has been observed in patients treated with GLP-1 receptor agonists, including SAXENDA. Discontinue if pancreatitis is suspected. ( 5.2 )
• Acute Gallbladder Disease: If cholelithiasis or cholecystitis are suspected, gallbladder studies are indicated. ( 5.3 )
• Hypoglycemia: Can occur in adults when SAXENDA is used with an insulin secretagogue (e.g. a sulfonylurea) or insulin. The risk may be lowered by a reduction in the dose of concomitantly administered insulin secretagogues or insulin. In the pediatric clinical trial, patients did not have type 2 diabetes. Hypoglycemia occurred in SAXENDA-treated pediatric patients. Inform all patients of the risk of hypoglycemia and educate them on the signs and symptoms of hypoglycemia. ( 5.4 )
• Heart Rate Increase: Monitor heart rate at regular intervals. ( 5.5 )
• Acute Kidney Injury Due to Volume Depletion: Monitor renal function in patients reporting adverse reactions that could lead to volume depletion. ( 5.6 )
• Severe Gastrointestinal Adverse Reactions: Use has been associated with gastrointestinal adverse reactions, sometimes severe. SAXENDA is not recommended in patients with severe gastroparesis. ( 5.7 )
• Hypersensitivity Reactions: Postmarketing reports of serious hypersensitivity reactions (e.g., anaphylactic reactions and angioedema). Discontinue SAXENDA and other suspect medications and promptly seek medical advice. ( 5.8 )
• Pulmonary Aspiration During General Anesthesia or Deep Sedation: Has been reported in patients receiving GLP-1 receptor agonists undergoing elective surgeries or procedures. Instruct patients to inform healthcare providers of any planned surgeries or procedures. ( 5.9 )

5.1 Risk of Thyroid C-cell Tumors Liraglutide causes dose-dependent and treatment-duration-dependent thyroid C-cell tumors (adenomas and/or carcinomas) at clinically relevant exposures in both genders of rats and mice [see Nonclinical Toxicology ( 13.1 )] . Malignant thyroid C-cell carcinomas were detected in rats and mice. It is unknown whether SAXENDA will cause thyroid C-cell tumors, including medullary thyroid carcinoma (MTC), in humans, as the human relevance of liraglutide-induced rodent thyroid C-cell tumors has not been determined. Cases of MTC in patients treated with liraglutide have been reported in the postmarketing period; the data in these reports are insufficient to establish or exclude a causal relationship between MTC and liraglutide use in humans. SAXENDA is contraindicated in patients with a personal or family history of MTC or in patients with MEN 2. Counsel patients regarding the potential risk for MTC with the use of SAXENDA and inform them of symptoms of thyroid tumors (e.g., a mass in the neck, dysphagia, dyspnea, persistent hoarseness). Routine monitoring of serum calcitonin or using thyroid ultrasound is of uncertain value for early detection of MTC in patients treated with SAXENDA. Such monitoring may increase the risk of unnecessary procedures, due to low test specificity for serum calcitonin and a high background incidence of thyroid disease. Significantly elevated serum calcitonin may indicate MTC, and patients with MTC usually have calcitonin values greater than 50 ng/L. If serum calcitonin is measured and found to be elevated, the patient should be further evaluated. Patients with thyroid nodules noted on physical examination or neck imaging should also be further evaluated.

5.2 Acute Pancreatitis Acute pancreatitis, including fatal and non-fatal hemorrhagic or necrotizing pancreatitis, has been observed in patients treated with GLP-1 receptor agonists, including liraglutide [see Adverse Reactions ( 6 )] . After initiation of SAXENDA, observe patients carefully for signs and symptoms of acute pancreatitis which may include persistent or severe abdominal pain (sometimes radiating to the back) and which may or may not be accompanied by nausea or vomiting. If pancreatitis is suspected, discontinue SAXENDA and initiate appropriate management.

5.3 Acute Gallbladder Disease In SAXENDA clinical trials in adults, 2.2% of SAXENDA-treated patients reported adverse events of cholelithiasis versus 0.8% of placebo-treated patients. The incidence of cholecystitis was 0.8% in SAXENDA-treated patients versus 0.4% in placebo-treated patients. The majority of SAXENDA-treated patients with adverse events of cholelithiasis and cholecystitis required cholecystectomy. Substantial or rapid weight loss can increase the risk of cholelithiasis; however, the incidence of acute gallbladder disease was greater in SAXENDA-treated patients than in placebo-treated patients even after accounting for the degree of weight loss. If cholelithiasis is suspected, gallbladder studies and appropriate clinical follow-up are indicated.

5.4 Hypoglycemia Adult patients with type 2 diabetes mellitus on an insulin secretagogue (e.g., sulfonylurea) or insulin may have an increased risk of hypoglycemia with use of SAXENDA, including severe hypoglycemia. In patients with type 2 diabetes, monitor blood glucose prior to starting SAXENDA and during SAXENDA treatment [see Dosage and Administration ( 2 ), Adverse Reactions ( 6.1 )] . The risk of hypoglycemia may be lowered by a reduction in the dose of sulfonylurea (or other concomitantly administered insulin secretagogues) or insulin. Inform patients using these concomitant medications of the risk of hypoglycemia and educate them on the signs and symptoms of hypoglycemia. In the pediatric clinical trial, patients did not have type 2 diabetes but were provided with blood glucose meters. Clinically significant hypoglycemia, defined as blood glucose <54 mg/dL, occurred in 1.6% of the SAXENDA- treated patients compared to 0.8% of placebo-treated patients [see Adverse Reactions ( 6.1 )] . Inform all pediatric patients of the risk of hypoglycemia and educate them on the signs and symptoms of hypoglycemia.

5.5 Heart Rate Increase Mean increases in resting heart rate of 2 to 3 beats per minute (bpm) were observed with routine clinical monitoring in SAXENDA-treated adult patients compared to placebo in clinical trials. More patients treated with SAXENDA, compared with placebo, had changes from baseline at two consecutive visits of more than 10 bpm (34% versus 19%, respectively) and 20 bpm (5% versus 2%, respectively). At least one resting heart rate exceeding 100 bpm was recorded for 6% of SAXENDA-treated patients compared with 4% of placebo-treated patients, with this occurring at two consecutive study visits for 0.9% and 0.3%, respectively. Tachycardia was reported as an adverse reaction in 0.6% of SAXENDA-treated patients and in 0.1% of placebo-treated patients. In a clinical pharmacology trial that monitored heart rate continuously for 24 hours, SAXENDA treatment was associated with a heart rate that was 4 to 9 bpm higher than that observed with placebo. In a pediatric clinical trial, mean increases from baseline in resting heart rate of 3 to 7 bpm were observed with SAXENDA treatment. Heart rate should be monitored at regular intervals consistent with usual clinical practice. Patients should inform health care providers of palpitations or feelings of a racing heartbeat while at rest during SAXENDA treatment. For patients who experience a sustained increase in resting heart rate while taking SAXENDA, SAXENDA should be discontinued.

5.6 Acute Kidney Injury Due to Volume Depletion There have been postmarketing reports of acute kidney injury, in some cases requiring hemodialysis, in patients treated with liraglutide [see Adverse Reactions ( 6.2 )] . The majority of the reported events occurred in patients who had experienced gastrointestinal reactions leading to dehydration such as nausea, vomiting, or diarrhea [see Adverse Reactions ( 6.1 )] . Monitor renal function in patients reporting adverse reactions to SAXENDA that could lead to volume depletion, especially during dosage initiation and escalation [see Use in Specific Populations ( 8.6 )] . […]

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 )]
• Acute Gallbladder Disease [see Warnings and Precautions ( 5.3 )]
• Risk for Hypoglycemia with Concomitant Use of Anti-Diabetic Therapy [see Warnings and Precautions ( 5.4 )]
• Heart Rate Increase [see Warnings and Precautions ( 5.5 )]
• Acute Kidney Injury Due to Volume Depletion [see Warnings and Precautions ( 5.6 )]
• Severe Gastrointestinal Adverse Reactions [see Warnings and Precautions ( 5.7 )]
• Hypersensitivity Reactions [see Warnings and Precautions ( 5.8 )]
• Pulmonary Aspiration During General Anesthesia or Deep Sedation [see Warnings and Precautions ( 5.9 )] Most common adverse reactions, reported in greater than or equal to 5% are: nausea, diarrhea, constipation, vomiting, injection site reactions, headache, hypoglycemia, dyspepsia, fatigue, dizziness, abdominal pain, increased lipase, upper abdominal pain, pyrexia, and gastroenteritis. ( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Novo Nordisk Inc. at 1-844-363-4448 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 studies of another drug and may not reflect the rates observed in practice. SAXENDA was evaluated for safety in 5 double-blind, placebo controlled trials that included 3,384 overweight or obese adult patients treated with SAXENDA for a treatment period up to 56 weeks (3 trials), 52 weeks (1 trial), and 32 weeks (1 trial) and one trial of 56 weeks in 125 pediatric patients with obesity aged 12 years and older [see Clinical Studies ( 14.1 , 14.2 )]. All patients received study drug in addition to a reduced-calorie diet and increased physical activity counseling. In the adult trials, patients received SAXENDA for a mean treatment duration of 46 weeks (median, 56 weeks). Baseline characteristics included a mean age of 47 years, 71% female, 85% white, 39% with hypertension, 15% with type 2 diabetes, 34% with dyslipidemia, 29% with a BMI greater than 40 kg/m 2 , and 9% with cardiovascular disease. In one of the 56-week trials, a subset of patients (with abnormal glucose measurements at randomization) [see Clinical Studies ( 14.1 )] were enrolled for a placebo-controlled 160-week period instead, followed by a 12-week off-treatment follow-up. For those participating in this 160-week period, patients received SAXENDA for a mean treatment duration of 110 weeks (median, 159 weeks). For all trials, dosing was initiated and increased weekly to reach the 3 mg dose. In adult clinical trials, 9.8% of patients treated with SAXENDA and 4.3% of patients treated with placebo prematurely discontinued treatment as a result of adverse reactions. The most common adverse reactions leading to discontinuation were nausea (2.9% versus 0.2% for SAXENDA and placebo, respectively), vomiting (1.7% versus less than 0.1%), and diarrhea (1.4% versus 0%). Adverse reactions reported in greater than or equal to 2% of SAXENDA-treated adult patients and more frequently than in placebo-treated patients are shown in Table 2 . Adverse reactions reported in greater than or equal to 3% of SAXENDA-treated pediatric patients and more frequently than in placebo-treated patients are shown in Table 3 . Table 2. Adverse Reactions Occurring in ≥2% of SAXENDA-treated Adult Patients and More Frequently than Placebo Placebo N=1941 % SAXENDA N=3384 % Nausea 13.8

39.3 Diarrhea 9.9

20.9 Constipation 8.5

19.4 Vomiting 3.9

15.7 Injection Site Reaction 1 10.5

13.9 Headache 12.6

13.6 Hypoglycemia in T2DM 2 6.6

12.6 Dyspepsia 2.7

9.6 Fatigue 4.6

7.5 Dizziness 5

6.9 Abdominal Pain 3.1

5.4 Increased Lipase 2.2

5.3 Upper Abdominal Pain 2.7

5.1 Gastroenteritis 3.2

4.7 Gastroesophageal Reflux Disease 1.7

4.7 Abdominal Distension 3

4.5 Eructation 0.2

4.5 Urinary Tract Infection 3.1

4.3 Flatulence 2.5 4 Viral Gastroenteritis 1.6

2.8 Insomnia 1.7

2.4 Dry Mouth 1

2.3 Asthenia 0.8

2.1 Anxiety 1.6 2 1 The most common reactions, each reported by 1% to 2.5% of SAXENDA-treated patients and more commonly than by placebo-treated patients, included erythema, pruritus, and rash at the injection site. 2 Defined as blood glucose <54 mg/dL with or without symptoms of hypoglycemia in patients with type 2 diabetes not on concomitant insulin (Study 2, SAXENDA N=423, Placebo N=212). See text below for further information regarding hypoglycemia in patients with and without type 2 diabetes. T2DM = type 2 diabetes mellitus. Table 3. Adverse Reactions Occurring in ≥3% of SAXENDA-treated Pediatric Patients and More Frequently than Placebo in a 56 Week Clinical Trial Placebo N=126 % SAXENDA N=125 % Nausea 14.3

42.4 Vomiting 4

34.4 Diarrhea 14.3

22.4 Hypoglycemia 1 4

15.2 Gastroenteritis 4.8

12.8 Dizziness 3.2

10.4 Pyrexia 7.1 8 Abdominal discomfort 0.8

4.8 Constipation 2.4

4.8 Dyslipidemia 3.2

4.8 Fatigue 3.2

4.8 Cough 3.2 4 Depression 2.4 4 Dyspepsia 2.4 4 Pain in extremity 2.4 4 Injection site pain 3.2

3.2 Flatulence 0

3.2 Increased Blood Creatine Kinase 2.4

3.2 Increased Lipase 0.8

3.2 Rash 0 3.2 1 Defined as blood glucose <70 mg/dL with symptoms of hypoglycemia. Pediatric patients did not have type 2 diabetes mellitus. See text below for more detailed hypoglycemia information. Hypoglycemia Adult Patients with Type 2 Diabetes In a clinical trial in adult patients with type 2 diabetes mellitus and overweight (excess weight) or obesity, severe hypoglycemia (defined as requiring the assistance of another person) occurred in 3 (0.7%) of 422 SAXENDA-treated patients (all taking a sulfonylurea) and in none of the 212 placebo-treated patients. In this trial, among patients taking a sulfonylurea, hypoglycemia defined as a plasma glucose less than 54 mg/dL with or without symptoms occurred in 31 (28.2%) of 110 SAXENDA-treated patients and 7 (12.7%) of 55 placebo-treated patients. The doses of sulfonylureas were reduced by 50% at the beginning of the trial per protocol. Among patients not taking a sulfonylurea, blood glucose less than 54 mg/dL with or without symptoms occurred in 22 (7.1%) of 312 SAXENDA-treated patients and 7 (4.5%) of 157 placebo-treated patients. In a SAXENDA clinical trial in adult patients with overweight (excess weight) or obesity with type 2 diabetes mellitus treated with basal insulin and SAXENDA in combination with a reduced-calorie diet and increased physical activity and up to 2 oral anti-diabetes medications, severe hypoglycemia was reported by 3 (1.5%) of 195 SAXENDA-treated patients and 2 (1%) of 197 placebo-treated patients. No meaningful difference in hypoglycemia, defined as blood glucose less than 54 mg/dL with or without symptoms, was reported between groups. Adult Patients without Type 2 Diabetes In SAXENDA clinical trials in adult patients without type 2 diabetes mellitus, there was no systematic capturing or reporting of hypoglycemia; patients were not provided with blood glucose meters or hypoglycemia diaries. Spontaneously reported symptomatic episodes of unconfirmed hypoglycemia were reported by 46 (1.6%) of 2,962 SAXENDA-treated patients and 19 (1.1%) of 1,729 placebo-treated patients. Fasting plasma glucose values obtained at routine clinic visits less than 54 mg/dL, irrespective of hypoglycemic symptoms, occurred in 2 (0.1%) SAXENDA-treated patients and 1 (0.1%) placebo-treated patients. Pediatric Patients without Type 2 Diabetes In a 56-week placebo-controlled clinical trial of pediatric patients without type 2 diabetes mellitus in which blood glucose meters were provided, 19 (15.2%) of SAXENDA-treated patients had hypoglycemia with a blood glucose less than 70 mg/dL with symptoms as compared to 5 (4%) of placebo-treated patients. […]

SAXENDA delays gastric emptying. May impact absorption of concomitantly administered oral medications. Use with caution. ( 7 )

7.1 Oral Medications SAXENDA causes a delay of gastric emptying, and thereby has the potential to impact the absorption of concomitantly administered oral medications. In clinical pharmacology trials, liraglutide did not affect the absorption of the tested orally administered medications to any clinically relevant degree. Nonetheless, monitor for potential consequences of delayed absorption of oral medications concomitantly administered with SAXENDA.

Pregnancy: May cause fetal harm. When pregnancy is recognized, discontinue SAXENDA. ( 8.1 )

8.1 Pregnancy Risk Summary Based on animal reproduction studies, there may be risks to the fetus from exposure to SAXENDA during pregnancy. SAXENDA should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus. Additionally, weight loss offers no benefit to a pregnant patient and may cause fetal harm. When a pregnancy is recognized, advise the pregnant patient of the risk to a fetus, and discontinue SAXENDA (see Clinical Considerations ). Animal reproduction studies identified increased adverse embryofetal developmental outcomes from exposure during pregnancy. Liraglutide exposure was associated with early embryonic deaths and an imbalance in some fetal abnormalities in pregnant rats administered liraglutide during organogenesis at doses that approximate clinical exposures at the maximum recommended human dose (MRHD) of 3 mg/day. In pregnant rabbits administered liraglutide during organogenesis, decreased fetal weight and an increased incidence of major fetal abnormalities were seen at exposures below the human exposures at the MRHD (see Animal Data ). The estimated background risk of major birth defects and miscarriage for the indicated populations is unknown. In the U.S. general population, the estimated background risk of major birth defects and miscarriage of clinically recognized pregnancies is 2 to 4% and 15 to 20%, respectively. Clinical Considerations Disease-associated maternal and/or embryofetal risk Appropriate weight gain based on pre-pregnancy weight is currently recommended for all pregnant patients, including those who already have overweight or obesity, because of the obligatory weight gain that occurs in maternal tissues during pregnancy. Animal Data Liraglutide has been shown to be teratogenic in rats at or above 0.8-times systemic exposures in obese humans resulting from the maximum recommended human dose (MRHD) of 3 mg/day based on plasma area under the time-concentration curve (AUC) comparison. Liraglutide has been shown to cause reduced growth and increased total major abnormalities in rabbits at systemic exposures below exposure in obese humans at the MRHD based on plasma AUC comparison. Female rats given subcutaneous doses of 0.1, 0.25 and 1 mg/kg/day liraglutide beginning 2 weeks before mating through gestation day 17 had estimated systemic exposures 0.8-, 3-, and 11-times the exposure in obese humans at the MRHD based on plasma AUC comparison. The number of early embryonic deaths in the 1 mg/kg/day group increased slightly. Fetal abnormalities and variations in kidneys and blood vessels, irregular ossification of the skull, and a more complete state of ossification occurred at all doses. Mottled liver and minimally kinked ribs occurred at the highest dose. The incidence of fetal malformations in liraglutide-treated groups exceeding concurrent and historical controls were misshapen oropharynx and/or narrowed opening into larynx at 0.1 mg/kg/day and umbilical hernia at 0.1 and 0.25 mg/kg/day. Pregnant rabbits given subcutaneous doses of 0.01, 0.025 and 0.05 mg/kg/day liraglutide from gestation day 6 through day 18 inclusive, had estimated systemic exposures less than the exposure in obese humans at the MRHD of 3 mg/day at all doses, based on plasma AUC comparison. Liraglutide decreased fetal weight and dose-dependently increased the incidence of total major fetal abnormalities at all doses. The incidence of malformations exceeded concurrent and historical controls at 0.01 mg/kg/day (kidneys, scapula), greater than or equal to 0.01 mg/kg/day (eyes, forelimb), 0.025 mg/kg/day (brain, tail and sacral vertebrae, major blood vessels and heart, umbilicus), greater than or equal to 0.025 mg/kg/day (sternum) and at 0.05 mg/kg/day (parietal bones, major blood vessels). Irregular ossification and/or skeletal abnormalities occurred in the skull and jaw, vertebrae and ribs, sternum, pelvis, tail, and scapula; and dose-dependent minor skeletal variations were observed. Visceral abnormalities occurred in blood vessels, lung, liver, and esophagus. Bilobed or bifurcated gallbladder was seen in all treatment groups, but not in the control group. In pregnant female rats given subcutaneous doses of 0.1, 0.25 and 1 mg/kg/day liraglutide from gestation day 6 through weaning or termination of nursing on lactation day 24, estimated systemic exposures were 0.8-, 3-, and 11-times exposure in obese humans at the MRHD of 3 mg/day, based on plasma AUC comparison. A slight delay in parturition was observed in the majority of treated rats. Group mean body weight of neonatal rats from liraglutide-treated dams was lower than neonatal rats from control group dams. Bloody scabs and agitated behavior occurred in male rats descended from dams treated with 1 mg/kg/day liraglutide. Group mean body weight from birth to postpartum day 14 trended lower in F 2 generation rats descended from liraglutide-treated rats compared to F 2 generation rats descended from controls, but differences did not reach statistical significance for any group.

8.2 Lactation Risk Summary There are no data on the presence of liraglutide in human milk, the effects on the breastfed infant, or effects on milk production. Liraglutide was present in the milk of lactating rats (see Data ). The developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for SAXENDA and any potential adverse effects on the breastfed infant from SAXENDA or from the underlying maternal condition. Data In lactating rats, liraglutide was present unchanged in milk at concentrations approximately 50% of maternal plasma concentrations.

8.4 Pediatric Use The safety and effectiveness of SAXENDA as an adjunct to a reduced-calorie diet and increased physical activity for chronic weight management have been established in pediatric patients aged 12 years and older with body weight above 60 kg and an initial BMI corresponding to 30 kg/m 2 or greater for adults (obese) by international cut-offs. Use of SAXENDA for this indication is supported by a 56-week double-blind, placebo-controlled clinical trial in 251 pediatric patients aged 12 to 17 years, a pharmacokinetic study in pediatric patients, and studies in adults with obesity [see Clinical Pharmacology ( 12.3 ), Clinical Studies ( 14.1 , 14.2 )]. In the pediatric clinical trial, one SAXENDA-treated patient had an event of pancreatitis [see Warnings and Precautions ( 5.2 )] ; more episodes of hypoglycemia confirmed by self blood glucose monitoring occurred in SAXENDA-treated patients compared to placebo [see Warnings and Precautions ( 5.4 ), Adverse Reactions ( 6.1 )] ; and mean increases in resting heart rate of 3 to 7 bpm from baseline were observed with SAXENDA-treated patients [see Warnings and Precautions ( 5.5 )] . The safety and effectiveness of SAXENDA have not been established in patients less than 12 years of age.

8.5 Geriatric Use In the SAXENDA clinical trials, 232 (6.9%) of the SAXENDA-treated patients were 65 years of age and over, and 17 (0.5%) of the SAXENDA-treated patients were 75 years of age and over. No overall differences in safety or effectiveness were observed between these patients and younger patients, but greater sensitivity of some older individuals cannot be ruled out.

8.6 Renal Impairment There is limited experience with SAXENDA in patients with mild, moderate, and severe renal impairment, including end‑stage renal disease.

8.7 Hepatic Impairment There is limited experience in patients with mild, moderate, or severe hepatic impairment. Therefore, SAXENDA should be used with caution in this patient population [see Clinical Pharmacology ( 12.3 )] .

Liraglutide is an acylated human GLP-1 receptor agonist with 97% amino acid sequence homology to endogenous human GLP-1(7-37). Like endogenous GLP-1, liraglutide binds to and activates the GLP-1 receptor, a cell-surface receptor coupled to adenylyl cyclase activation through the stimulatory G-protein, Gs. Endogenous GLP-1 has a half-life of 1.5 to 2 minutes due to degradation by the ubiquitous endogenous enzymes, dipeptidyl peptidase 4 (DPP-4) and neutral endopeptidases (NEP). Unlike native GLP-1, liraglutide is stable against metabolic degradation by both peptidases and has a plasma half-life of 13 hours after subcutaneous administration. The pharmacokinetic profile of liraglutide, which makes it suitable for once-daily administration, is a result of self-association that delays absorption, plasma protein binding, and stability against metabolic degradation by DPP-4 and NEP. GLP-1 is a physiological regulator of appetite and calorie intake, and the GLP-1 receptor is present in several areas of the brain involved in appetite regulation. In animal studies, peripheral administration of liraglutide resulted in the presence of liraglutide in specific brain regions regulating appetite, including the hypothalamus. Although liraglutide activated neurons in brain regions known to regulate appetite, specific brain regions mediating the effects of liraglutide on appetite were not identified in rats.