INSULIN DETEMIR: 9,651 Adverse Event Reports & Safety Profile

Insulin detemir is a long-acting recombinant human insulin analog produced by a process that includes expression of recombinant DNA in Saccharomyces cerevisiae followed by chemical modification. Insulin detemir differs from human insulin in that the amino acid threonine in position B30 has been omitted, and a C14 fatty acid chain has been attached to the amino acid B29. Insulin detemir has a molecular formula of C 267 H 402 O 76 N 64 S 6 and a molecular weight of 5.917 kDa. It has the following structure: Figure 1: Structural Formula of Insulin Detemir LEVEMIR (insulin detemir) injection is a clear, colorless, aqueous, neutral sterile solution for subcutaneous use. Each milliliter of LEVEMIR contains 100 units insulin detemir, dibasic sodium phosphate (0.71 mg), glycerin (16 mg), metacresol (2.06 mg), phenol (1.8 mg), sodium chloride (1.17 mg), zinc (65.4 mcg), and Water for Injection, USP. Hydrochloric acid and/or sodium hydroxide may be added to adjust pH. LEVEMIR has a pH of approximately 7.4.

Levemir Chemical

Structure.jpg

AND USAGE LEVEMIR is indicated to improve glycemic control in adult and pediatric patients with diabetes mellitus. Limitations of Use LEVEMIR is not recommended for the treatment of diabetic ketoacidosis. LEVEMIR is a long-acting human insulin analog indicated to improve glycemic control in adult and pediatric patients with diabetes mellitus ( 1 ). Limitations of Use: Not recommended for the treatment of diabetic ketoacidosis.

AND ADMINISTRATION

• See Full Prescribing Information for important administration instructions ( 2.1 ).
• Inject subcutaneously into the thigh, upper arm, or abdomen ( 2.1 ).
• Rotate injection sites to reduce risk of lipodystrophy and localized cutaneous amyloidosis ( 2.1 ).
• Individualize and titrate the dose of LEVEMIR based on the patient’s metabolic needs, blood glucose monitoring results, and glycemic control goal ( 2.2 ).
• Administer subcutaneously once daily or in divided doses twice daily ( 2.2 ).
• See Full Prescribing Information for recommended starting dose in insulin naïve patients and patients already on insulin therapy ( 2.3 , 2.4 ).

2.1 Important Administration Instructions

• Always check insulin labels before administration [see Warnings and Precautions ( 5.4 )].
• Visually inspect for particulate matter and discoloration. Only use LEVEMIR if the solution appears clear and colorless.
• Inject LEVEMIR subcutaneously into the thigh, upper arm, or abdomen.
• Rotate injection sites within the same region from one injection to the next to reduce the risk of lipodystrophy and localized cutaneous amyloidosis. Do not inject into areas of lipodystrophy or localized cutaneous amyloidosis [see Warnings and Precautions ( 5.2 ), Adverse Reactions ( 6 )] .
• During changes to a patient’s insulin regimen, increase the frequency of blood glucose monitoring [see Warnings and Precautions ( 5.2 )].
• Do not dilute or mix LEVEMIR with any other insulin or solution.
• Do not administer LEVEMIR intravenously or in an insulin infusion pump.
• LEVEMIR FlexPen dials in 1-unit increments.
• Use the LEVEMIR FlexPen with caution in patients with visual impairment who may rely on audible clicks to dial their dose.

2.2 General Dosing Instructions

• LEVEMIR can be administered by subcutaneous injection once or twice daily. Administer once daily doses with the evening meal or at bedtime. For twice daily dosing, administer the evening dose with the evening meal, at bedtime, or 12 hours after the morning dose.
• Individualize and titrate the dose of LEVEMIR based on the patient’s metabolic needs, blood glucose monitoring results, and glycemic control goal.
• Dose adjustments may be needed with changes in physical activity, changes in meal patterns (i.e., macronutrient content or timing of food intake), changes in renal or hepatic function or during acute illness to minimize the risk of hypoglycemia or hyperglycemia [see Warnings and Precautions ( 5.3 )].
• In patients with type 1 diabetes, LEVEMIR must be used in a regimen with rapid-acting or short-acting insulin.

2.3 Starting Dose in Insulin Naïve Patients Recommended Starting Dosage in Patients with Type 1 Diabetes The recommended starting dose of LEVEMIR in patients with type 1 diabetes mellitus is approximately one-third to one-half of the total daily insulin dose. The remainder of the total daily insulin dose should be administered as short-acting pre-meal insulin. As a general rule, 0.2 to 0.4 units of insulin per kilogram of body weight can be used to calculate the initial total daily insulin dose in insulin naïve patients with type 1 diabetes.

Recommended Starting

Dosage in Patients with Type 2 Diabetes The recommended starting dose of LEVEMIR in patients with type 2 diabetes mellitus inadequately controlled on oral antidiabetic medications or a GLP-1 receptor agonist is 10 units (or 0.1 units/kg to 0.2 units/kg) given once daily in the evening or divided into a twice daily regimen.

2.4 Switching to LEVEMIR from Other Insulin Therapies Dosage adjustments are recommended to lower the risk of hypoglycemia when switching patients to LEVEMIR from another insulin therapy <span class="opacity-50 text-xs">[see Warnings and Precautions ( 5.3 )]</span>.

• If converting from insulin glargine to LEVEMIR, the change can be done on a unit-to-unit basis.
• If converting from NPH insulin, the change can be done on a unit-to-unit basis. However, some patients with type 2 diabetes mellitus may require more LEVEMIR than NPH insulin, as observed in one trial [see Clinical Studies ( 14 )] .

LEVEMIR is contraindicated:

• During episodes of hypoglycemia [see Warnings and Precautions (5.3)]
• In patients with hypersensitivity to insulin detemir or any of the excipients in LEVEMIR. Reactions have included anaphylaxis [ see Warnings and Precautions (5.5) and Adverse Reactions (6.1) ] .
• During episodes of hypoglycemia ( 4 )
• Hypersensitivity to insulin detemir or any of the excipients in LEVEMIR ( 4 )

REACTIONS The following adverse reactions are discussed elsewhere:

• Hypoglycemia [see Warnings and Precautions ( 5.3 )]
• Hypoglycemia Due to Medication errors [see Warnings and Precautions ( 5.4 )]
• Hypersensitivity Reactions [see Warnings and Precautions ( 5.5 )]
• Hypokalemia [see Warnings and Precautions ( 5.6 )] Adverse reactions associated with LEVEMIR include hypoglycemia, allergic reactions, injection site reactions, lipodystrophy, rash and pruritus ( 6 ). To report SUSPECTED ADVERSE REACTIONS, contact Novo Nordisk Inc. at 1-800-727-6500 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch

6.1 Clinical Trial Experience Because clinical trials are conducted under widely varying designs, the adverse reaction rates reported in one clinical trial may not be easily compared to those rates reported in another clinical trial, and may not reflect the rates actually observed in clinical practice. The frequencies of adverse reactions (excluding hypoglycemia) reported during LEVEMIR clinical trials in patients with type 1 diabetes mellitus and type 2 diabetes mellitus are listed in Tables 1-4 below.

See Tables

5 and 6 for the hypoglycemia findings. In two pooled trials, adults with type 1 diabetes were exposed to individualized doses of LEVEMIR (n=767) or NPH (n=388). The mean duration of exposure to LEVEMIR was 153 days, and the total exposure to LEVEMIR was 321 patient-years. The most common adverse reactions are summarized in Table 1.

Table

1: Adverse Reactions Occurring in ≥ 5% of LEVEMIR-Treated Adult Patients with Type 1 Diabetes Mellitus in Two Trials of 16 Weeks and 24 Weeks Duration LEVEMIR, % (n = 767) Upper respiratory tract infection

26.1 Headache

22.6 Pharyngitis

9.5 Influenza-like illness

7.8 Abdominal Pain

6.0 Adults with type 1 diabetes were exposed to LEVEMIR (n=161) or insulin glargine (n=159). The mean duration of exposure to LEVEMIR was 176 days, and the total exposure to LEVEMIR was 78 patient-years. The most common adverse reactions are summarized in Table 2.

Table

2: Adverse Reactions Occurring in ≥ 5% of LEVEMIR-Treated Adult Patients with Type 1 Diabetes Mellitus in a 26-week Trial LEVEMIR, % (n = 161) Upper respiratory tract infection

26.7 Headache

14.3 Back pain

8.1 Influenza-like illness

6.2 Gastroenteritis

5.6 Bronchitis

5.0 In two pooled trials, adults with type 2 diabetes were exposed to LEVEMIR (n=432) or NPH (n=437). The mean duration of exposure to LEVEMIR was 157 days, and the total exposure to LEVEMIR was 186 patient-years. The most common adverse reactions were comparable to that observed in adult patients with type 1 diabetes mellitus; see Table 1. Pediatric patients with type 1 diabetes were exposed to individualized doses of LEVEMIR (n=232) or NPH (n=115). The mean duration of exposure to LEVEMIR was 180 days, and the total exposure to LEVEMIR was 114 patient-years. The most common adverse reactions are summarized in Table 3.

Table

3: Adverse Reactions Occurring in ≥ 5% of LEVEMIR-Treated Pediatric Patients with Type 1 Diabetes Mellitus in a 26-week Trial LEVEMIR, % (n = 232) Upper respiratory tract infection

35.8 Headache

31.0 Pharyngitis

17.2 Gastroenteritis

16.8 Influenza-like illness

13.8 Abdominal pain

13.4 Pyrexia

10.3 Cough

8.2 Viral infection

7.3 Nausea

6.5 Rhinitis

6.5 Vomiting

6.5 Hypoglycemia Hypoglycemia was the most commonly observed adverse reaction in patients treated with LEVEMIR. The rates of reported hypoglycemia depend on the definition of hypoglycemia used, diabetes type, insulin dose, intensity of glucose control, background therapies, and other intrinsic and extrinsic patient factors. For these reasons, comparing rates of hypoglycemia in clinical trials for LEVEMIR with the incidence of hypoglycemia for other products may be misleading and also, may not be representative of hypoglycemia rates that will occur in clinical practice.

Table

4 (type 1 diabetes) and Table 5 (type 2 diabetes) summarize the incidence of severe and non-severe hypoglycemia in the LEVEMIR clinical trials. For the adult trials and one of the pediatric trials (Study D), severe hypoglycemia was defined as an event with symptoms consistent with hypoglycemia requiring assistance of another person and associated with either a plasma glucose value below 56 mg/dL (blood glucose below 50 mg/dL) or prompt recovery after oral carbohydrate, intravenous glucose or glucagon administration. For the other pediatric trial (Study I), severe hypoglycemia was defined as an event with semi-consciousness, unconsciousness, coma and/or convulsions in a patient who could not assist in the treatment and who may have required glucagon or intravenous glucose. For the adult trials and pediatric trial (Study D), non-severe hypoglycemia was defined as an asymptomatic or symptomatic plasma glucose <56 mg/dL (or equivalently blood glucose <50 mg/dL as used in Study A and C) that was self-treated by the patient. For pediatric Study I, non-severe hypoglycemia included asymptomatic events with plasma glucose <65 mg/dL as well as symptomatic events that the patient could self-treat or treat by taking oral therapy provided by the caregiver.

Table

4: Hypoglycemia in Patients with Type 1 Diabetes Severe Hypoglycemia Non-Severe Hypoglycemia Percent of patients with at least 1 event (n/total N) Event/patient/ year Percent of patients (n/total N) Event/patient/ year Study A Type 1 Diabetes Adults 16 weeks In combination with insulin aspart Twice-Daily LEVEMIR 8.7 (24/276) 0.52 88.0 (243/276)

26.4 Study B Type 1 Diabetes Adults 26 weeks In combination with insulin aspart Twice-Daily LEVEMIR 5.0 (8/161) 0.13 82.0 (132/161)

20.2 Study C Type 1 Diabetes Adults 24 weeks In combination with regular insulin Once-Daily LEVEMIR 7.5 (37/491) 0.35 88.4 (434/491)

31.1 Study D Type 1 Diabetes Pediatrics 26 weeks In combination with insulin aspart Once- or Twice Daily LEVEMIR 15.9 (37/232) 0.91 93.1 (216/232)

31.6 Study I Type 1 Diabetes Pediatrics 52 weeks In combination with insulin aspart Once- or Twice Daily LEVEMIR 1.7 (3/177) 0.02 94.9 (168/177)

56.1 Table 5: Hypoglycemia in Patients with Type 2 Diabetes Study E Type 2 Diabetes Adults 24 weeks In combination with oral agents Study F Type 2 Diabetes Adults 22 weeks In combination with insulin aspart Study H Type 2 Diabetes Adults 26 weeks in combination with Liraglutide and Metformin Twice-Daily LEVEMIR Once- or Twice Daily LEVEMIR Once Daily LEVEMIR + Liraglutide + Metformin Severe hypoglycemia Percent of patients with at least 1 event (n/total N) 0.4 (1/237) 1.5 (3/195) 0 Event/patient/year 0.01 0.04 0 Non-severe hypoglycemia Percent of patients (n/total N) 40.5 (96/237) 32.3 (63/195) 9.2 (15/163) Event/patient/year 3.5 1.6

0.29 Hypersensitivity Reactions Severe, life-threatening, generalized allergy, including anaphylaxis, generalized skin reactions, angioedema, bronchospasm, hypotension, and shock have occurred with insulin, including LEVEMIR, and may be life-threatening.

Insulin

Initiation and Intensification of Glucose Control Intensification or rapid improvement in glucose control has been associated with a transitory, reversible ophthalmologic refraction disorder, worsening of diabetic retinopathy, and acute painful peripheral neuropathy. However, long-term glycemic control decreases the risk of diabetic retinopathy and neuropathy.

Lipodystrophy

Long-term use of insulin, including LEVEMIR, can cause lipodystrophy at the site of repeated insulin injections. Lipodystrophy includes lipohypertrophy (thickening of adipose tissue) and lipoatrophy (thinning of adipose tissue), and may affect insulin absorption [see Dosage and Administration (2.1)] .

Weight Gain

Weight gain can occur with insulin therapy, including LEVEMIR, and has been attributed to the anabolic effects of insulin and the decrease in glucosuria [see Clinical Studies (14)] . In the clinical program, the mean change in body weight from baseline in adult patients with type 1 diabetes (Study A, B, and C) treated with LEVEMIR ranged from -0.3 kg to 0.5 kg. The mean change in body weight from baseline in adult patients with type 2 diabetes (Study E, F, and H) treated with LEVEMIR ranged from 0.5 kg to 1.2 kg.

Peripheral Edema

Insulin, including LEVEMIR, may cause sodium retention and edema, particularly if previously poor metabolic control is improved by intensified insulin therapy.

Injection Site Reactions

Patients taking LEVEMIR may experience injection site reactions, including localized erythema, pain, pruritus, urticaria, edema, and inflammation. In clinical studies in adults, three patients treated with LEVEMIR reported injection site pain (0.25%).

Immunogenicity

All insulin products can elicit the formation of insulin antibodies. These insulin antibodies may increase or decrease the efficacy of insulin and may require adjustment of the insulin dose. In clinical trials of LEVEMIR, antibody development has been observed with no apparent impact on glycemic control.

6.2 Postmarketing Experience The following adverse reactions have been identified during post approval use of LEVEMIR. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure. Medication errors have been reported in which rapid-acting or short-acting insulins and other insulins, have been accidentally administered instead of LEVEMIR. Localized cutaneous amyloidosis at the injection site has occurred. Hyperglycemia has been reported with repeated insulin injections into areas of localized cutaneous amyloidosis; hypoglycemia has been reported with a sudden change to an unaffected injection site.

AND PRECAUTIONS

• Never Share a LEVEMIR FlexPen, insulin syringe, or needle between patients, even if the needle is changed ( 5.1 ).
• Hyperglycemia or hypoglycemia with changes in insulin regimen: Make changes to a patient’s insulin regimen (e.g., insulin strength, manufacturer, type, injection site or method of administration) under close medical supervision with increased frequency of blood glucose monitoring ( 5.2 ).
• Hypoglycemia: May be life-threatening. Increase frequency of glucose monitoring with changes to: insulin dosage, concomitant drugs, meal pattern, physical activity; and in patients with renal impairment or hepatic impairment or hypoglycemia unawareness ( 5.3 ).
• Hypoglycemia due to medication errors: Accidental mix-ups between insulin products can occur. Instruct patients to check insulin labels before injection ( 5.4 ).
• Hypersensitivity reactions: Severe, life-threatening, generalized allergy, including anaphylaxis, can occur. Discontinue LEVEMIR, monitor and treat if indicated ( 5.5 ).
• Hypokalemia: May be life-threatening. Monitor potassium levels in patients at risk for hypokalemia and treat if indicated ( 5.6 ).
• Fluid retention and heart failure with concomitant use of thiazolidinediones (TZDs): Observe for signs and symptoms of heart failure; consider dosage reduction or discontinuation if heart failure occurs ( 5.7 ).

5.1 Never Share a LEVEMIR FlexPen, Needle, or Insulin Syringe between Patients LEVEMIR FlexPen prefilled pens must never be shared between patients, even if the needle is changed. Patients using LEVEMIR vials should never share needles or syringes with another person. Sharing poses a risk for transmission of blood-borne pathogens.

5.2 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 <span class="opacity-50 text-xs">[see Warnings and Precautions ( 5.4 )]</span> 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 <span class="opacity-50 text-xs">[see Adverse Reactions ( 6 )]</span>. 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. For patients with type 2 diabetes, dosage adjustments of concomitant antidiabetic products may be needed <span class="opacity-50 text-xs">[see Dosage and Administration ( 2.4 )]</span>.

5.3 Hypoglycemia Hypoglycemia is the most common adverse reaction of insulin, including LEVEMIR <span class="opacity-50 text-xs">[see Adverse Reactions ( 6.1 )]</span>. 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). LEVEMIR, or any insulin, should not be used during episodes of hypoglycemia <span class="opacity-50 text-xs">[see Contraindications ( 4 )]</span>. 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, using drugs that block the sympathetic nervous system (e.g., beta-blockers) <span class="opacity-50 text-xs">[see Drug Interactions ( 7 )]</span>, or who experience recurrent hypoglycemia.

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 ( 12.2 )] and, in general, is highest when the glucose lowering effect of the insulin is maximal. As with all insulins, the glucose lowering effect time course of LEVEMIR may vary among different patients or at different times in the same patient 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 ( 7 )]. When a GLP-1 receptor agonist is used in combination with LEVEMIR, the LEVEMIR dose may need to be lowered or more conservatively titrated to minimize the risk of hypoglycemia [see Adverse Reactions ( 6.1 )] . Patients with renal or hepatic impairment may be at higher risk of hypoglycemia [see Use in Specific Populations ( 8.6 , 8.7 )].

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.

5.4 Hypoglycemia Due to Medication Errors Accidental mix-ups between insulin products have been reported. To avoid medication errors between LEVEMIR and other insulins, instruct patients to always check the insulin label before each injection.

5.5 Hypersensitivity Reactions Severe, life-threatening, generalized allergy, including anaphylaxis, can occur with insulins, including LEVEMIR <span class="opacity-50 text-xs">[see Adverse Reactions ( 6.1 )]</span> . If hypersensitivity reactions occur, discontinue LEVEMIR; treat per standard of care and monitor until symptoms and signs resolve. LEVEMIR is contraindicated in patients who have had hypersensitivity reactions to insulin detemir or any of the excipients .

5.6 Hypokalemia All insulins, including LEVEMIR, 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).

5.7 Fluid Retention and Heart Failure with Concomitant Use of PPAR-gamma Agonists Thiazolidinediones (TZDs), which are peroxisome proliferator-activated receptor (PPAR)-gamma agonists, can cause dose-related fluid retention, when used in combination with insulin. Fluid retention may lead to or exacerbate heart failure. Patients treated with insulin, including LEVEMIR, and a PPAR-gamma agonist should be observed for signs and symptoms of heart failure. If 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.

INTERACTIONS Table 6 includes clinically significant drug interactions with LEVEMIR.

Table

6: Clinically Significant Drug Interactions with LEVEMIR Drugs That May Increase the Risk of Hypoglycemia Drugs: Antidiabetic agents, ACE inhibitors, angiotensin II receptor blocking agents, disopyramide, fibrates, fluoxetine, monoamine oxidase inhibitors, pentoxifylline, pramlintide, salicylates, somatostatin analogs (e.g., octreotide), and sulfonamide antibiotics, GLP-1 receptor agonists, DPP-4 inhibitors, SGLT-2 inhibitors. Intervention: Dosage reductions and increased frequency of glucose monitoring may be required when LEVEMIR is co-administered with these drugs.

Drugs That May

Decrease the Blood Glucose Lowering Effect of LEVEMIR Drugs: Atypical antipsychotics (e.g., olanzapine and clozapine), corticosteroids, danazol, diuretics, estrogens, glucagon, isoniazid, niacin, oral contraceptives, phenothiazines, progestogens (e.g., in oral contraceptives), protease inhibitors, somatropin, sympathomimetic agents (e.g., albuterol, epinephrine, terbutaline), and thyroid hormones. Intervention: Dosage increases and increased frequency of glucose monitoring may be required when LEVEMIR is co-administered with these drugs.

Drugs That May

Increase or Decrease the Blood Glucose Lowering Effect of LEVEMIR Drugs: Alcohol, beta-blockers, clonidine, and lithium salts. Pentamidine may cause hypoglycemia, which may sometimes be followed by hyperglycemia. Intervention: Dosage adjustment and increased frequency of glucose monitoring may be required when LEVEMIR is co-administered with these drugs.

Drugs That May Blunt

Signs and Symptoms of Hypoglycemia Drugs: Beta-blockers, clonidine, guanethidine, and reserpine Intervention: Increased frequency of glucose monitoring may be required when LEVEMIR is co-administered with these drugs.

• Drugs that Affect Glucose Metabolism: Adjustment of insulin dosage may be needed. ( 7 )
• Antiadrenergic Drugs (e.g., beta-blockers, clonidine, guanethidine, and reserpine): Signs and symptoms of hypoglycemia may be reduced or absent. ( 5.3 , 7 )