Warnings for Xultophy Injection
Included as part of the PRECAUTIONS section.
Precautions for Xultophy Injection
Risk Of Thyroid C-cell Tumors
Liraglutide, one of the components of XULTOPHY 100/3.6, causes dose-dependent and treatmentÂduration-dependent thyroid C-cell tumors (adenomas and/or carcinomas) at clinically relevant exposures in both genders of rats and mice [see Nonclinical Toxicology]. Malignant thyroid C-cell carcinomas were detected in rats and mice. It is unknown whether XULTOPHY 100/3.6 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.
XULTOPHY 100/3.6 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 XULTOPHY 100/3.6 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 XULTOPHY 100/3.6. 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 >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.
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, one of the components of XULTOPHY 100/3.6 [see ADVERSE REACTIONS].
After initiation of XULTOPHY 100/3.6, observe patients carefully for signs and symptoms of pancreatitis (including persistent severe abdominal pain, sometimes radiating to the back and which may or may not be accompanied by vomiting). If pancreatitis is suspected, discontinue XULTOPHY 100/3.6 and initiate appropriate management.
Never Share A XULTOPHY 100/3.6 Pen Between Patients
XULTOPHY 100/3.6 pen must never be shared between patients, even if the needle is changed. Sharing of the pen poses a risk for transmission of blood-borne pathogens.
Hyperglycemia Or Hypoglycemia With Changes In Insulin Regimen
Changes in an insulin regimen (e.g., insulin strength, manufacturer, type, injection site or method of administration) may affect glycemic control and predispose to hypoglycemia [see WARNINGS AND PRECAUTIONS] or hyperglycemia. Repeated insulin injections into areas of lipodystrophy or localized cutaneous amyloidosis have been reported to result in hyperglycemia; and a sudden change in the injection site (to an unaffected area) has been reported to result in hypoglycemia [see ADVERSE REACTIONS]. Make any changes to a patient’s insulin regimen under close medical supervision with increased frequency of blood glucose monitoring. Advise patients who have repeatedly injected into areas of lipodystrophy or localized cutaneous amyloidosis to change the injection site to unaffected areas and closely monitor for hypoglycemia. Adjustments in concomitant oral anti-diabetic treatment may be needed. When initiating XULTOPHY 100/3.6, follow dosing recommendations [see DOSAGE AND ADMINISTRATION].
Overdose Due To Medication Errors
XULTOPHY 100/3.6 contains two drugs: insulin degludec and liraglutide. Administration of more than 50 units of XULTOPHY 100/3.6 daily can result in overdose of the liraglutide component. Do not exceed the 1.8 mg maximum recommended dose of liraglutide or use with other GLP-1 receptor agonists.
Accidental mix-ups between insulin products have been reported. To avoid medication errors between XULTOPHY 100/3.6 (an insulin containing product) and other insulin products, instruct patients to always check the label before each injection.
Hypoglycemia
Hypoglycemia is the most common adverse reaction of insulin containing products, including XULTOPHY 100/3.6 [see ADVERSE REACTIONS]. Severe hypoglycemia can cause seizures, may be life-threatening or cause death. Hypoglycemia can impair concentration ability and reaction time; this may place the patient and others at risk in situations where these abilities are important (e.g., driving or operating other machinery). XULTOPHY 100/3.6 (an insulin-containing product) or any insulin, should not be used during episodes of hypoglycemia [see CONTRAINDICATIONS].
Hypoglycemia can happen suddenly and symptoms may differ in each patient and change over time in the same patient. Symptomatic awareness of hypoglycemia may be less pronounced in patients with longstanding diabetes, in patients with diabetic neuropathy, in patients using drugs that block the sympathetic nervous system (e.g., beta-blockers) [see DRUG INTERACTIONS], or who experience recurrent hypoglycemia.
The long-acting effect of insulin degludec may delay recovery from hypoglycemia compared to shorter acting insulins.
Risk Factors For Hypoglycemia
The risk of hypoglycemia generally increases with intensity of glycemic control. The risk of hypoglycemia after an injection is related to the duration of action of the insulin [see CLINICAL PHARMACOLOGY] and, in general, is highest when the glucose lowering effect of the insulin is maximal. As with all insulin containing products, the glucose lowering effect time course of XULTOPHY 100/3.6 may vary among different patients or at different times in the same patients and depends on many conditions, including the area of injection as well as the injection site blood supply and temperature.
Other factors which may increase the risk of hypoglycemia include changes in meal pattern (e.g., macronutrient content or timing of meals), changes in level of physical activity, or changes to concomitant drugs [see DRUG INTERACTIONS]. Patients with renal or hepatic impairment may be at higher risk of hypoglycemia [see Use In Specific Populations].
Risk Mitigation Strategies For Hypoglycemia
Patients and caregivers must be educated to recognize and manage hypoglycemia. Self-monitoring of blood glucose plays an essential role in the prevention and management of hypoglycemia. In patients at higher risk for hypoglycemia and patients who have reduced symptomatic awareness of hypoglycemia, increased frequency of blood glucose monitoring is recommended.
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, one of the components of XULTOPHY 100/3.6 [see ADVERSE REACTIONS]. The majority of the reported events occurred in patients who experienced gastrointestinal reactions leading to dehydration such as nausea, vomiting, or diarrhea [see ADVERSE REACTIONS]. Monitor renal function in patients reporting adverse reactions to XULTOPHY 100/3.6 that could lead to volume depletion, especially during dosage initiation and escalation of XULTOPHY 100/3.6.
Severe Gastrointestinal Adverse Reactions
Use of GLP-1 receptor agonists, including liraglutide, one of the components of XULTOPHY 100/3.6, has been associated with gastrointestinal adverse reactions, sometimes severe [see ADVERSE REACTIONS]. In a XULTOPHY 100/3.6 clinical trial severe gastrointestinal adverse reactions were reported among patients receiving XULTOPHY 100/3.6 (0.8 %) and patients receiving the active comparators liraglutide (2.9%) and insulin degludec (0.2%) [see Clinical Studies]. XULTOPHY 100/3.6 is not recommended in patients with severe gastroparesis.
Hypersensitivity Reactions
Severe, life-threatening, generalized allergy, including anaphylaxis, angioedema, bronchospasm, hypotension, and shock can occur with insulins, including XULTOPHY 100/3.6. Allergic reactions (manifested with signs and symptoms such as urticaria, rash, pruritus) have been reported with XULTOPHY 100/3.6. There have been postmarketing reports of serious hypersensitivity reactions (e.g., anaphylactic reactions and angioedema) in patients treated with liraglutide, one of the components of XULTOPHY 100/3.6 [see ADVERSE REACTIONS]. If a hypersensitivity reaction occurs, discontinue XULTOPHY 100/3.6; treat promptly per standard of care, and monitor until signs and symptoms resolve.
Anaphylaxis and angioedema have been reported with other GLP-1 receptor agonists. Use caution in a patient with a history of anaphylaxis or angioedema with another GLP-1 receptor agonist because it is unknown whether such patients will be predisposed to these reactions with XULTOPHY 100/3.6. XULTOPHY 100/3.6 is contraindicated in patients who have had hypersensitivity reactions to insulin degludec, liraglutide or one of the excipients of these products [see CONTRAINDICATIONS].
Acute Gallbladder Disease
Acute events of gallbladder disease such as cholelithiasis or cholecystitis have been reported in GLP-1 receptor agonist trials and postmarketing. In a cardiovascular outcomes trial (LEADER trial) [see Clinical Studies], 3.1% of patients treated with liraglutide, one of the components of XULTOPHY 100/3.6, versus 1.9% of placebo treated patients reported an acute event of gallbladder disease, such as cholelithiasis or cholecystitis [see ADVERSE REACTIONS]. If cholelithiasis is suspected, gallbladder studies and appropriate clinical follow-up are indicated.
Hypokalemia
All insulin-containing products, including XULTOPHY 100/3.6, cause a shift in potassium from the extracellular to intracellular space, possibly leading to hypokalemia. Untreated hypokalemia may cause respiratory paralysis, ventricular arrhythmia, and death. Monitor potassium levels in patients at risk for hypokalemia if indicated (e.g., patients using potassium-lowering medications, patients taking medications sensitive to serum potassium concentrations).
Fluid Retention And Congestive Heart Failure With Concomitant Use Of A PPAR Gamma Agonist
Thiazolidinediones (TZDs), which are peroxisome proliferator-activated receptor (PPAR)-gamma agonists can cause dose related fluid retention, when used in combination with insulin containing products, including XULTOPHY 100/3.6. Fluid retention may lead to or exacerbate congestive heart failure. Patients treated with insulin containing products, including XULTOPHY 100/3.6 and a PPAR-gamma agonist should be observed for signs and symptoms of congestive heart failure. If congestive heart failure develops, it should be managed according to current standards of care and discontinuation or dose reduction of the PPAR-gamma agonist must be considered.
Pulmonary Aspiration During General Anesthesia Or Deep Sedation
XULTOPHY 100/3.6 delays gastric emptying [see CLINICAL PHARMACOLOGY]. There have been rare postmarketing reports of pulmonary aspiration in patients receiving GLP-1 receptor agonists undergoing elective surgeries or procedures requiring general anesthesia or deep sedation who had residual gastric contents despite reported adherence to preoperative fasting recommendations.
Available data are insufficient to inform recommendations to mitigate the risk of pulmonary aspiration during general anesthesia or deep sedation in patients taking XULTOPHY 100/3.6, including whether modifying preoperative fasting recommendations or temporarily discontinuing XULTOPHY 100/3.6 could reduce the incidence of retained gastric contents. Instruct patients to inform healthcare providers prior to any planned surgeries or procedures if they are taking XULTOPHY 100/3.6.
Patient Counseling Information
Advise the patient to read the FDA-approved patient labeling (Medication Guide and Instructions for Use)
Risk Of Thyroid C-cell Tumors
Inform patients that liraglutide, one of the components of XULTOPHY 100/3.6, causes benign and malignant thyroid C-cell tumors in mice and rats and that the human relevance of this finding is unknown. Counsel patients to report symptoms of thyroid tumors (e.g., a lump in the neck, hoarseness, dysphagia or dyspnea) to their physician [see BOXED WARNING and WARNINGS AND PRECAUTIONS].
Acute Pancreatitis
Inform patients of the potential risk for pancreatitis acute pancreatitis and its symptoms: severe abdominal pain that may radiate to the back, and which may or may not be accompanied by vomiting. Instruct patients to discontinue XULTOPHY 100/3.6 promptly and contact their physician if pancreatitis is suspected [see WARNINGS AND PRECAUTIONS].
Never Share A XULTOPHY 100/3.6 Pen Between Patients
Advise patients that they must never share a XULTOPHY 100/3.6 pen with another person, even if the needle is changed, because doing so carries a risk for transmission of blood-borne pathogens [see WARNINGS AND PRECAUTIONS].
Hyperglycemia Or Hypoglycemia With Changes In Insulin Regimen
Inform patients that hypoglycemia is the most common adverse reaction with insulin products. Inform patients of the symptoms of hypoglycemia (e.g. impaired ability to concentrate and react). This may present a risk in situations where these abilities are especially important, such as driving or operating other machinery. Advise patients who have frequent hypoglycemia or reduced or absent warning signs of hypoglycemia to use caution when driving or operating machinery.
Advise patients that changes in insulin regimen can predispose to hyperglycemia or hypoglycemia and that changes in insulin regimen should be made under close medical supervision [see WARNINGS AND PRECAUTIONS].
Overdose Due To Medication Errors
Inform patients that XULTOPHY 100/3.6 contains two drugs: insulin degludec and liraglutide. Accidental mix-ups between insulin products have been reported. To avoid medication errors between XULTOPHY 100/3.6 (an insulin containing product) and other insulin products, instruct patients to always check the label before each injection.
Advise patients that the administration of more than 50 units of XULTOPHY 100/3.6 daily can result in overdose of the liraglutide component. Instruct patients not to administer concurrently with other glucagon-like peptide-1 receptor agonists [see WARNINGS AND PRECAUTIONS].
Acute Kidney Injury Due To Volume Depletion
Inform patients of the potential risk of acute kidney injury due to dehydration associated with gastrointestinal adverse reactions. Advise patients to take precautions to avoid fluid depletion. Inform patients of the signs and symptoms of acute kidney injury and instruct them to promptly report any of these signs or symptoms or persistent (or extended) nausea, vomiting, and diarrhea to their healthcare provider [see WARNINGS AND PRECAUTIONS].
Severe Gastrointestinal Adverse Reactions
Inform patients of the potential risk of severe gastrointestinal adverse reactions. Instruct patients to contact their healthcare provider if they have severe or persistent gastrointestinal symptoms [see WARNINGS AND PRECAUTIONS].
Hypersensitivity Reactions
Inform patients that serious hypersensitivity reactions have been reported during postmarketing use of liraglutide, one of the components of XULTOPHY 100/3.6. Advise patients on the symptoms of hypersensitivity reactions and instruct them must stop taking XULTOPHY 100/3.6 and seek medical advice promptly [see WARNINGS AND PRECAUTIONS].
Acute Gallbladder Disease
Inform patients of the potential risk for cholelithiasis or cholecystitis. Instruct patients to contact their physician if cholelithiasis or cholecystitis is suspected for appropriate clinical follow-up [see WARNINGS AND PRECAUTIONS].
Pulmonary Aspiration During General Anesthesia Or Deep Sedation
Inform patients that XULTOPHY 100/3.6 may cause their stomach to empty more slowly which may lead to complications with anesthesia or deep sedation during planned surgeries or procedures. Instruct patients to inform healthcare providers prior to any planned surgeries or procedures if they are taking XULTOPHY 100/3.6 [see WARNINGS AND PRECAUTIONS].
Pregnancy
Advise a pregnant woman of the potential risk to a fetus. Advise women to inform their healthcare provider if they are pregnant or intend to become pregnant [see Use In Specific Populations].
Missed Dose
Inform patients not to take an extra dose of XULTOPHY 100/3.6 or increase the dose to make up for the missed dose. Instruct patients who miss a dose of XULTOPHY 100/3.6 to resume the once-daily dosage regimen as prescribed with the next scheduled dose. If more than three days have elapsed since the last XULTOPHY 100/3.6 dose, reinitiate XULTOPHY 100/3.6 at the recommended starting dose to reduce the risk of gastrointestinal adverse reactions associated with reinitiation of treatment. XULTOPHY 100/3.6 should be titrated at the direction of a healthcare provider [see DOSAGE AND ADMINISTRATION].
Nonclinical Toxicology
Carcinogenesis, Mutagenesis, Impairment Of Fertility
XULTOPHY 100/3.6
No studies have been conducted with the XULTOPHY 100/3.6 combination to evaluate carcinogenesis, mutagenesis or impairment of fertility. The following data are based upon studies with insulin degludec and liraglutide individually.
Insulin Degludec
Standard 2-year carcinogenicity studies in animals have not been performed to evaluate the carcinogenic potential of insulin degludec.
In a 52-week study including human insulin (NPH insulin) as comparator, Sprague-Dawley rats were dosed subcutaneously with insulin degludec at 3.3, 6.7, and 10 U/kg/day, resulting in 5 times the human exposure (AUC) when compared to a human subcutaneous dose of 0.75 U/kg/day. Human insulin was dosed at 6.7 U/kg/day. No treatment-related increases in incidences of hyperplasia, benign or malignant tumors were recorded in female mammary glands from rats dosed with insulin degludec and no treatment related changes in the female mammary gland cell proliferation were found using BrdU incorporation. Further, no treatment related changes in the occurrence of hyperplastic or neoplastic lesions were seen in any animals dosed with insulin degludec when compared to vehicle or human insulin.
Genotoxicity testing of insulin degludec was not performed.
In a combined fertility and embryo-fetal study in male and female rats, treatment with insulin degludec up to 21 U/kg/day (approximately 5 times the human subcutaneous dose of 0.75 U/kg/day, based on U/body surface area) prior to mating and in female rats during gestation had no effect on mating performance and fertility.
Liraglutide
A 104-week carcinogenicity study was conducted in male and female CD-1 mice at doses of 0.03, 0.2, 1.0, and 3.0 mg/kg/day liraglutide administered by bolus subcutaneous injection yielding systemic exposures 0.2-, 2-, 10-and 45-times the human exposure, respectively, at the MRHD of 1.8 mg/day based on plasma AUC comparison. A dose-related increase in benign thyroid C-cell adenomas was seen in the 1.0 and the 3.0 mg/kg/day groups with incidences of 13% and 19% in males and 6% and 20% in females, respectively. C-cell adenomas did not occur in control groups or 0.03 and 0.2 mg/kg/day groups. Treatment-related malignant C-cell carcinomas occurred in 3% of females in the 3.0 mg/kg/day group. Thyroid C-cell tumors are rare findings during carcinogenicity testing in mice. A treatment-related increase in fibrosarcomas was seen on the dorsal skin and subcutis, the body surface used for drug injection, in males in the 3 mg/kg/day group. These fibrosarcomas were attributed to the high local concentration of drug near the injection site. The liraglutide concentration in the clinical formulation (6 mg/mL) is 10-times higher than the concentration in the formulation used to administer 3 mg/kg/day liraglutide to mice in the carcinogenicity study (0.6 mg/mL).
A 104-week carcinogenicity study was conducted in male and female Sprague Dawley rats at doses of 0.075, 0.25 and 0.75 mg/kg/day liraglutide administered by bolus subcutaneous injection with exposures 0.5-, 2-and 8-times the human exposure, respectively, resulting from the MRHD based on plasma AUC comparison. A treatment-related increase in benign thyroid C-cell adenomas was seen in males in 0.25 and 0.75 mg/kg/day liraglutide groups with incidences of 12%, 16%, 42%, and 46% and in all female liraglutide-treated groups with incidences of 10%, 27%, 33%, and 56% in 0 (control), 0.075, 0.25, and 0.75 mg/kg/day groups, respectively. A treatment-related increase in malignant thyroid C-cell carcinomas was observed in all male liraglutide-treated groups with incidences of 2%, 8%, 6%, and 14% and in females at 0.25 and 0.75 mg/kg/day with incidences of 0%, 0%, 4%, and 6% in 0 (control), 0.075, 0.25, and 0.75 mg/kg/day groups, respectively. Thyroid C-cell carcinomas are rare findings during carcinogenicity testing in rats.
Studies in mice demonstrated that liraglutide-induced C-cell proliferation was dependent on the GLP-1 receptor and that liraglutide did not cause activation of the REarranged during Transfection (RET) proto-oncogene in thyroid C-cells.
Human relevance of thyroid C-cell tumors in mice and rats is unknown and has not been determined by clinical studies or nonclinical studies [see BOXED WARNING and WARNINGS AND PRECAUTIONS].
Liraglutide was negative with and without metabolic activation in the Ames test for mutagenicity and in a human peripheral blood lymphocyte chromosome aberration test for clastogenicity. Liraglutide was negative in repeat-dose in vivo micronucleus tests in rats.
In rat fertility studies using subcutaneous doses of 0.1, 0.25 and 1.0 mg/kg/day liraglutide, males were treated for 4 weeks prior to and throughout mating and females were treated 2 weeks prior to and throughout mating until gestation day 17. No direct adverse effects on male fertility was observed at doses up to 1.0 mg/kg/day, a high dose yielding an estimated systemic exposure 11Âtimes the human exposure at the MRHD, based on plasma AUC. In female rats, an increase in early embryonic deaths occurred at 1.0 mg/kg/day. Reduced body weight gain and food consumption were observed in females at the 1.0 mg/kg/day dose.
Use In Specific Populations
Pregnancy
Risk Summary
Based on animal reproduction studies, there may be risks to the fetus from exposure to liraglutide during pregnancy. XULTOPHY 100/3.6 should be used during pregnancy only if the potential benefit justifies the potential risk to the fetus.
There are no available data with XULTOPHY 100/3.6, insulin degludec or liraglutide in pregnant women to inform a drug associated risk for major birth defects and miscarriage. There are clinical considerations regarding the risks of poorly controlled diabetes in pregnancy [see Clinical Considerations].
For insulin degludec, rats and rabbits were exposed in animal reproduction studies at 5 times (rat) and 10 times (rabbit) the human exposure at a dose of 0.75 U/kg/day. No adverse outcomes were observed for pregnant animals and offspring [see Data].
For liraglutide, animal reproduction studies identified increased adverse 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 1.8 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 Data].
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. The estimated background risk of major birth defects is 6 to 10% in women with pre-gestational diabetes with a peri-conceptional HbA1c >7 and has been reported to be as high as 20 to 25% in women with a periÂconceptional HbA1c >10. The estimated background risk of miscarriage for the indicated population is unknown.
Clinical Considerations
Disease-Associated Maternal And/Or Embryo/fetal Risk
Hypoglycemia and hyperglycemia occur more frequently during pregnancy in patients with preÂgestational diabetes. Poorly controlled diabetes in pregnancy increases the maternal risk for diabetic ketoacidosis, pre-eclampsia, spontaneous abortions, preterm delivery, and delivery complications. Poorly controlled diabetes mellitus increases the fetal risk for major birth defects, stillbirth, macrosomia related morbidity.
Data
Animal Data
Insulin degludec
Insulin degludec was investigated in studies covering fertility, embryo-fetal development and preÂand post-natal development in rats and during the period of embryo-fetal development in rabbits. Human insulin (NPH insulin) was included as comparator. In these studies insulin degludec was given subcutaneously at up to 21 U/kg/day in rats and 3.3 U/kg/day in rabbits, resulting in 5 times (rat) and 10 times (rabbit) the human exposure (AUC) at a human subcutaneous dose of 0.75 U/kg/day. Overall the effects of insulin degludec were similar to those observed with human insulin.
Liraglutide
Female rats given subcutaneous doses of 0.1, 0.25 and 1.0 mg/kg/day liraglutide beginning 2 weeks before mating through gestation day 17 had estimated systemic exposures 0.8-, 3-, and 11-times the human exposure 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 human exposure at the MRHD of 1.8 mg/day at all doses, based on plasma AUC. 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), ≥ 0.01 mg/kg/day (eyes, forelimb), 0.025 mg/kg/day (brain, tail and sacral vertebrae, major blood vessels and heart, umbilicus), ≥ 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 1.0 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 human exposure at the MRHD of 1.8 mg/day, based on plasma AUC. 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 F2 generation rats descended from liraglutide-treated rats compared to F2 generation rats descended from controls, but differences did not reach statistical significance for any group.
Lactation
Risk Summary
There are no data on the presence of liraglutide or insulin degludec in human milk, the effects on the breastfed infant, or the effects on milk production. In lactating rats, insulin degludec and liraglutide, the two components of XULTOPHY 100/3.6, were present in milk.
The developmental and health benefits of breastfeeding should be considered along with the mother’s clinical need for XULTOPHY 100/3.6 and any potential adverse effects on the breastfed infant from XULTOPHY 100/3.6 or from the underlying maternal condition.
Data
Insulin Degludec
In lactating rats, insulin degludec was present in milk at a concentration lower than that in plasma.
Liraglutide
In lactating rats, liraglutide was present unchanged in milk at concentrations approximately 50% of maternal plasma concentrations.
Pediatric Use
Safety and effectiveness of XULTOPHY 100/3.6 have not been established in pediatric patients.
Geriatric Use
Of the total number of 1881 subjects in clinical studies of XULTOPHY 100/3.6, 375 (19.9%) were 65 years and over, while 52 (2.8%) were 75 years and over [see Clinical Studies]. No overall differences in safety or effectiveness of XULTOPHY 100/3.6 were observed between patients 65 years of age and older and younger patients.
Age had no clinically relevant effect on the pharmacokinetics of XULTOPHY 100/3.6 [see CLINICAL PHARMACOLOGY].
In geriatric patients with diabetes, the initial dosing, dose increments, and maintenance dosage should be conservative to avoid hypoglycemic reactions. Hypoglycemia may be more difficult to recognize in geriatric patients.
Renal Impairment
XULTOPHY 100/3.6
There is limited experience with XULTOPHY 100/3.6 in patients with mild and moderate kidney impairment and when used in these patients, additional glucose monitoring and XULTOPHY 100/3.6 dose adjustments may be required on an individual basis. XULTOPHY 100/3.6 has not been studied in patients with severe kidney impairment [see WARNINGS AND PRECAUTIONS and CLINICAL PHARMACOLOGY].
Insulin Degludec
No clinically relevant difference in the pharmacokinetics of insulin degludec was identified in a study comparing healthy subjects and subjects with kidney impairment including subjects with end stage kidney disease.
Liraglutide
The safety and efficacy of liraglutide was evaluated in a 26 week clinical study that included patients with moderate kidney impairment (eGFR 30 to 60 mL/min/1.73 m²). In the liraglutide treatment arm of a cardiovascular outcomes trial (LEADER trial) [see Clinical Studies], 1932 (41.4%) patients had mild kidney impairment, 999 (21.4%) patients had moderate renal impairment and 117 (2.5%) patients had severe kidney impairment at baseline. No overall differences in safety or efficacy were seen in these patients compared to patients with normal kidney function.
There is limited experience with liraglutide in patients with end stage kidney disease.
Hepatic Impairment
XULTOPHY 100/3.6
XULTOPHY 100/3.6 has not been studied in patients with hepatic impairment.
Insulin Degludec
No clinically relevant difference in the pharmacokinetics of insulin degludec, one of the components of XULTOPHY 100/3.6, was identified in a study comparing healthy subjects and subjects with hepatic impairment (mild, moderate, and severe hepatic impairment) [see CLINICAL PHARMACOLOGY].
Liraglutide
There is limited experience in patients with mild, moderate or severe hepatic impairment with liraglutide, one of the components of XULTOPHY 100/3.6 [see CLINICAL PHARMACOLOGY].