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Insulin Analog

Humalog Pen

Approved 14 Jun 1996InjectionInjectable

Indications

Insulin Lispro is indicated to improve glycemic control in adult and pediatric patients with diabetes mellitus. Insulin Lispro is a rapid acting human insulin analog indicated to improve glycemic control in adult and pediatric patients with diabetes mellitus. ( 1 )

Contraindications

Insulin Lispro is contraindicated: during episodes of hypoglycemia [see Warnings and Precautions ( 5.3 )] . in patients who are hypersensitive to Insulin Lispro or to any of the excipients in Insulin Lispro [see Warnings and Precautions ( 5.5 )] . Do not use during episodes of hypoglycemia. ( 4 ) Do not use in patients with hypersensitivity to Insulin Lispro or any of the excipients in Insulin Lispro. ( 4 )

Warnings and precautions

Never share an Insulin Lispro prefilled pen or syringe 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.

Monitor blood glucose and increase monitoring frequency with changes to insulin dosage, use of glucose lowering medications, meal pattern, physical activity; in patients with renal or hepatic impairment; and in patients with hypoglycemia unawareness. ( 5.3 , 7 , 8.6 , 8.7 ) 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: May be life-threatening. Discontinue Insulin Lispro, monitor and treat if indicated. ( 5.5 ) Hypokalemia: May be life-threatening. Monitor potassium levels in patients at risk of 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.

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5.3Hypoglycemia

Hypoglycemia is the most common adverse reaction associated with insulins, including Insulin Lispro. Severe hypoglycemia can cause seizures, may be life-threatening, or cause death. Hypoglycemia can impair concentration ability and reaction time; this may place an individual and others at risk in situations where these abilities are important (e.g., driving or operating other machinery). Hypoglycemia can happen suddenly, and symptoms may differ in each individual and change over time in the same individual.

Symptomatic awareness of hypoglycemia may be less pronounced in patients with longstanding diabetes, in patients with diabetic nerve disease, in patients using medications that block the sympathetic nervous system (e.g., beta-blockers) [see Drug Interactions ( 7 )] , or in patients who experience recurrent hypoglycemia. Risk Factors for Hypoglycemia The risk of hypoglycemia after an injection is related to the duration of action of the insulin 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 Insulin Lispro may vary in different individuals or at different times in the same individual and depends on many conditions, including the area of injection as well as the injection site blood supply and temperature [see Clinical Pharmacology ( 12.2 )] . 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 co-administered medication [see Drug Interactions ( 7 )] .

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.

Interactions

The table below includes clinically significant drug interactions with Insulin Lispro. 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 analog (e.g., octreotide), and sulfonamide antibiotics. Intervention: Dose adjustment and increased frequency of glucose monitoring may be required when Insulin Lispro is co-administered with these drugs.

Drugs That May Decrease the Blood Glucose Lowering Effect of Insulin Lispro 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: Dose adjustment and increased frequency of glucose monitoring may be required when Insulin Lispro is co-administered with these drugs. Drugs That May Increase or Decrease the Blood Glucose Lowering Effect of Insulin Lispro Drugs: Alcohol, beta-blockers, clonidine, and lithium salts. Pentamidine may cause hypoglycemia, which may sometimes be followed by hyperglycemia. Intervention: Dose adjustment and increased frequency of glucose monitoring may be required when Insulin Lispro 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 Insulin Lispro is co-administered with these drugs. Drugs that may increase the risk of hypoglycemia: antidiabetic agents, ACE inhibitors, angiotensin II receptor blocking agents, disopyramide, fibrates, fluoxetine, monoamine oxidase inhibitors, pentoxifylline, pramlintide, salicylates, somatostatin analog (e.g., octreotide), and sulfonamide antibiotics ( 7 ).

Drugs that may decrease the blood glucose lowering effect: atypical antipsychotics, 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 ( 7 ). Drugs that may increase or decrease the blood glucose lowering effect: alcohol, beta-blockers, clonidine, lithium salts, and pentamidine ( 7 ).

Drugs that may blunt the signs and symptoms of hypoglycemia: beta-blockers, clonidine, guanethidine, and reserpine ( 7 ).

Pregnancy and breastfeeding

8.1Pregnancy Risk Summary

Published studies with insulin lispro used during pregnancy have not reported an association between insulin lispro and the induction of major birth defects, miscarriage, or adverse maternal or fetal outcomes (see Data) . There are risks to the mother and fetus associated with poorly controlled diabetes in pregnancy (see Clinical Considerations) . Pregnant rats and rabbits were exposed to insulin lispro in animal reproduction studies during organogenesis.

No adverse effects on embryo/fetal viability or morphology were observed in offspring of rats exposed to insulin lispro at a dose approximately 3 times the human subcutaneous dose of 1 unit insulin lispro/kg/day. No adverse effects on embryo/fetal development were observed in offspring of rabbits exposed to insulin lispro at doses up to approximately 0.2 times the human subcutaneous dose of 1 unit/kg/day (see Data) .

The estimated background risk of major birth defects is 6-10% in women with pre-gestational diabetes with a HbA1c >7 and has been reported to be as high as 20-25% in women with a HbA1c >10. The estimated background risk of miscarriage for the indicated population is unknown. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2-4% and 15-20%, respectively.

Clinical Considerations Disease-associated maternal and/or embryo/fetal risk Poorly controlled diabetes in pregnancy increases the maternal risk for diabetic ketoacidosis, pre-eclampsia, spontaneous abortions, preterm delivery, and delivery complications. Poorly controlled diabetes increases the fetal risk for major birth defects, stillbirth, and macrosomia related morbidity. Data Human Data Published data from retrospective studies and meta-analyses do not report an association with insulin lispro and major birth defects, miscarriage, or adverse maternal or fetal outcomes when insulin lispro is used during pregnancy.

However, these studies cannot definitely establish or exclude the absence of any risk because of methodological limitations including small sample size, selection bias, confounding by unmeasured factors, and some lacking comparator groups. Animal Data In a combined fertility and embryo-fetal development study, female rats were given subcutaneous insulin lispro injections of 1, 5, and 20 units/kg/day (0.2, 0.8, and 3 times the human subcutaneous dose of 1 unit insulin lispro/kg/day, based on units/body surface area, respectively) from 2 weeks prior to cohabitation through Gestation Day 19.

There were no adverse effects on female fertility, implantation, or fetal viability and morphology. However, fetal growth retardation was produced at the 20 units/kg/day-dose as indicated by decreased fetal weight and an increased incidence of fetal runts/litter. In an embryo-fetal development study in pregnant rabbits, insulin lispro doses of 0.1, 0.25, and 0.75 unit/kg/day (0.03, 0.08, and 0.2 times the human subcutaneous dose of 1 unit insulin lispro/kg/day, based on units/body surface area, respectively) were injected subcutaneously on Gestation days 7 through 19.

There were no adverse effects on fetal viability, weight, and morphology at any dose.

Adverse 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 Insulin Lispro include hypoglycemia, allergic reactions, injection site reactions, lipodystrophy, pruritus, and rash.

( 6.1 ) To report SUSPECTED ADVERSE REACTIONS, contact Eli Lilly and Company at 1-800-LillyRx (1-800-545-5979) or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

6.1Clinical Trials Experience

Because clinical trials are conducted under widely varying designs, the adverse reaction rates reported in one clinical trial may not be easily compared with those rates reported in another clinical trial, and may not reflect the rates actually observed in clinical practice. Common adverse reactions, excluding hypoglycemia, were defined as events that occurred in ≥5% of patients treated with Insulin Lispro or regular human insulin.

The frequencies of adverse reactions during Insulin Lispro clinical trials in patients with type 1 diabetes mellitus and type 2 diabetes mellitus are listed in the tables below. Table 1: Adverse Reactions That Occurred in ≥5% in Patients with Type 1 Diabetes Mellitus Insulin Lispro (%) (n=81) Regular human insulin (%) (n=86) Flu syndrome 34.6

32.6 Pharyngitis 33.3

33.7 Rhinitis 24.7

29.1 Headache 29.6

22.1 Pain 19.8

16.3 Cough increased 17.3

17.4 Infection 13.6

20.9 Nausea 6.2

15.1 Accidental injury 8.6

11.6 Surgical procedure 6.2

14.0 Fever 6.2

11.6 Abdominal pain 7.4

8.1 Asthenia 7.4

8.1 Bronchitis 7.4

7.0 Diarrhea 8.6

5.8 Dysmenorrhea 6.2

7.0 Myalgia 7.4

5.8 Urinary tract infection 6.2

4.7Table 2: Adverse Reactions That Occurred

in ≥5% in Patients with Type 2 Diabetes Mellitus Insulin Lispro (%) (n=714) Regular human insulin (%) (n=709) Headache 11.6

9.3 Pain 10.8

10.0 Infection 10.1

7.6 Pharyngitis 6.6

8.2 Rhinitis 8.1

6.6 Flu syndrome 6.2

8.2 Surgical procedure 7.4

6.8 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. Hypoglycemia Hypoglycemia is the most commonly observed adverse reaction in patients using insulin, including Insulin Lispro.

Lipodystrophy Long-term use of insulin, including Insulin Lispro, can cause lipodystrophy at the site of repeated insulin injections or infusion. Lipodystrophy includes lipohypertrophy (thickening of adipose tissue) and lipoatrophy (thinning of adipose tissue), and may affect insulin absorption [see Dosage and Administration ( 2.2 )] . Weight gain Weight gain can occur with insulins, including Insulin Lispro, and has been attributed to the anabolic effects of insulin and the decrease in glucosuria.

Peripheral Edema Insulins, including Insulin Lispro, may cause sodium retention and edema, particularly if previously poor metabolic control is improved by intensified insulin therapy. Adverse Reactions with Continuous Subcutaneous Insulin Infusion (CSII) In a 12-week, randomized, crossover study in adult patients with type 1 diabetes (n=39), the rates of catheter occlusions and infusion site reactions were similar for Insulin Lispro and regular human insulin treated patients ( see Table 3 ).

Table 3: Catheter Occlusions and Infusion Site Reactions Insulin Lispro (n=38) Regular human insulin (n=39) Catheter occlusions/month 0.09

0.10 Infusion site reactions 2.6% (1/38) 2.6% (1/39) In a randomized, 16-week, open-label, parallel design study of pediatric patients with type 1 diabetes, adverse reactions related to infusion-site reactions were similar for Insulin Lispro and insulin aspart (21% of 100 patients versus 17% of 198 patients, respectively). In both groups, the most frequently reported infusion site reactions were infusion site erythema and infusion site reaction.

Allergic Reactions Local Allergy — As with any insulin, patients taking Insulin Lispro may experience redness, swelling, or itching at the site of the injection. These minor reactions usually resolve in a few days to a few weeks, but in some occasions, may require discontinuation of Insulin Lispro. Systemic Allergy — Severe, life-threatening, generalized allergy, including anaphylaxis, may occur with any insulin, including Insulin Lispro.

Generalized allergy to insulin may cause whole body rash (including pruritus), dyspnea, wheezing, hypotension, tachycardia, or diaphoresis. In controlled clinical trials, pruritus (with or without rash) was seen in 17 patients receiving regular human insulin (n=2969) and 30 patients receiving Insulin Lispro (n=2944). Localized reactions and generalized myalgias have been reported with injected metacresol, which is an excipient in Insulin Lispro [see Contraindications ( 4 )] .

Antibody Production In large clinical trials with patients with type 1 (n=509) and type 2 (n=262) diabetes mellitus, anti-insulin antibody (insulin lispro-specific antibodies, insulin-specific antibodies, cross-reactive antibodies) formation was evaluated in patients receiving both regular human insulin and Insulin Lispro (including patients previously treated with human insulin and naive patients). As expected, the largest increase in the antibody levels occurred in patients new to insulin therapy.

The antibody levels peaked by 12 months and declined over the remaining years of the study. These antibodies do not appear to cause deterioration in glycemic control or necessitate an increase in insulin dose. There was no statistically significant relationship between the change in the total daily insulin dose and the change in percent antibody binding for any of the antibody types.

6.2Postmarketing Experience

The following additional adverse reactions have been identified during post-approval use of Insulin Lispro. 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 in which other insulins have been accidentally substituted for Insulin Lispro have been identified during post-approval use.

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.

Humalog Pen

Indications

Contraindications

Warnings and precautions

Two medicines in one question?

5.1Never Share an Insulin Lispro Prefilled Pen or Syringe Between Patients Insulin

5.3Hypoglycemia

5.4Hypoglycemia Due to Medication Errors

5.5Hypersensitivity Reactions

5.6Hypokalemia

5.7Fluid Retention and Heart Failure with Concomitant Use of PPAR-gamma Agonists Thiazolidinediones

Interactions

Pregnancy and breastfeeding

8.1Pregnancy Risk Summary

Adverse reactions

6.1Clinical Trials Experience

4.7Table 2: Adverse Reactions That Occurred

6.2Postmarketing Experience

Composition

Official product information

At a glance

Guidelines