Tresiba (Page 4 of 9)
8.4 Pediatric Use
The safety and effectiveness of TRESIBA to improve glycemic control in type 1 and type 2 diabetes mellitus have been established in pediatric patients 1 year of age and older. The safety and effectiveness of TRESIBA have not been established in pediatric patients less than 1-year-old.
The use of TRESIBA in pediatric patients 1 year of age and older with type 1 and type 2 diabetes mellitus is supported by evidence from an adequate and well-controlled study and a pharmacokinetic study (studies included pediatric patients 1 year of age and older with type 1 diabetes mellitus) [ see Clinical Pharmacology (12.3) and Clinical Studies (14.2)]. The use of TRESIBA in pediatric patients 1 year of age and older with type 2 diabetes mellitus is also supported by evidence from adequate and well-controlled studies in adults with type 2 diabetes mellitus [see Clinical Studies (14.3)].
In pediatric patients 1 year of age and older already on insulin therapy, start TRESIBA at a reduced dose to minimize the risk of hypoglycemia [see Dosage and Administration ( 2.4)].
8.5 Geriatric Use
In controlled clinical studies [see Clinical Studies (14)] a total of 77 (7%) of the 1102 TRESIBA — treated patients with type 1 diabetes were 65 years or older and 9 (1%) were 75 years or older. A total of 670 (25%) of the 2713 TRESIBA-treated patients with type 2 diabetes were 65 years or older and 80 (3%) were 75 years or older. Differences in safety or effectiveness were not suggested in subgroup analyses comparing subjects older than 65 years to younger subjects.
In the safety outcomes trial (DEVOTE), a total of 1983 (52%) of the 3818 TRESIBA-treated patients with type 2 diabetes were 65 years or older and 381 (10%) were 75 years or older. Differences in safety or effectiveness were not observed in these subgroup analyses.
Nevertheless, greater caution should be exercised when TRESIBA is administered to geriatric patients since greater sensitivity of some older individuals to the effects of TRESIBA cannot be ruled out. The initial dosing, dose increments, and maintenance dosage should be conservative to avoid hypoglycemia. Hypoglycemia may be more difficult to recognize in the elderly.
8.6 Renal Impairment
In clinical studies [see Clinical Studies (14)] a total of 75 (7%) of the 1102 TRESIBA-treated patients with type 1 diabetes had an eGFR less than 60 mL/min/1.73 m2 and 1 (0.1%) had an eGFR less than 30 mL/min/1.73 m2. A total of 250 (9%) of the 2713 TRESIBA-treated patients with type 2 diabetes had an eGFR less than 60 mL/min/1.73 m2 and no subjects had an eGFR less than 30 mL/min/1.73 m2.
In the safety outcomes trial (DEVOTE), a total of 1429 (37.4%) of the 3818 TRESIBA-treated patients with type 2 diabetes had an eGFR less than 60 mL/min/1.73 m2 , and 108 (2.8%) subjects had an eGFR less than 30 mL/min/1.73 m2. Differences in safety or effectiveness were not observed in the subgroup analyses.
No clinically relevant difference in the pharmacokinetics of TRESIBA was identified in a study comparing healthy subjects and subjects with renal impairment including subjects with end stage renal disease [see Clinical Pharmacology (12.3)]. However, as with all insulin products, glucose monitoring should be intensified and the TRESIBA dosage adjusted on an individual basis in patients with renal impairment.
8.7 Hepatic Impairment
No difference in the pharmacokinetics of TRESIBA was identified in a study comparing healthy subjects and subjects with hepatic impairment (mild, moderate, and severe hepatic impairment) [see Clinical Pharmacology (12.3)]. However, as with all insulin products, glucose monitoring should be intensified and the TRESIBA dosage adjusted on an individual basis in patients with hepatic impairment.
10 OVERDOSAGE
An excess of insulin relative to food intake, energy expenditure, or both may lead to severe and sometimes prolonged and life-threatening hypoglycemia and hypokalemia [see Warnings and Precautions (5.3, 5.6)]. Mild episodes of hypoglycemia usually can be treated with oral glucose. Adjustments in drug dosage, meal patterns, or exercise may be needed. More severe episodes of hypoglycemia with coma, seizure, or neurologic impairment may be treated with intramuscular/subcutaneous glucagon or concentrated intravenous glucose. After apparent clinical recovery from hypoglycemia, continued observation and additional carbohydrate intake may be necessary to avoid reoccurrence of hypoglycemia. Hypokalemia must be corrected appropriately.
11 DESCRIPTION
TRESIBA (insulin degludec injection) is a long-acting basal human insulin analog for subcutaneous injection. Insulin degludec is produced by a process that includes expression of recombinant DNA in Saccharomyces cerevisiae followed by chemical modification.
Insulin degludec differs from human insulin in that the amino acid threonine in position B30 has been omitted and a side-chain consisting of glutamic acid and a C16 fatty acid has been attached (chemical name: LysB29(Nε-hexadecandioyl-γ-Glu) des(B30) human insulin). Insulin degludec has a molecular formula of C274 H411 N65 O81 S6 and a molecular weight of 6103.97. It has the following structure:
Figure 1: Structural Formula of TRESIBA
TRESIBA is a sterile, aqueous, clear, and colorless solution that contains insulin degludec 100 units/mL (U-100) or 200 units/mL (U-200).
For the 100 units/mL solution, each mL contains 100 units (600 nmol) of insulin degludec and glycerol (19.6 mg), metacresol (1.72 mg), phenol (1.50 mg), zinc (32.7 mcg), and Water for Injection, USP.
For the 200 units/mL solution, each mL contains 200 units (1200 nmol) of insulin degludec and glycerol (19.6 mg), metacresol (1.72 mg), phenol (1.50 mg), zinc (71.9 mcg), and Water for Injection, USP.
TRESIBA has a pH of approximately 7.6. Hydrochloric acid or sodium hydroxide may be added to adjust pH.
12 CLINICAL PHARMACOLOGY
12.1 Mechanism of Action
The primary activity of insulin, including TRESIBA, is regulation of glucose metabolism. Insulin and its analogs lower blood glucose by stimulating peripheral glucose uptake, especially by skeletal muscle and fat, and by inhibiting hepatic glucose production. Insulin also inhibits lipolysis and proteolysis, and enhances protein synthesis. TRESIBA forms multi-hexamers when injected into the subcutaneous tissue resulting in a subcutaneous insulin degludec depot. The protracted time action profile of TRESIBA is predominantly due to delayed absorption of insulin degludec from the subcutaneous tissue to the systemic circulation and to a lesser extent due to binding of insulin-degludec to circulating albumin.
12.2 Pharmacodynamics
The glucose-lowering effect of TRESIBA after 8 days of once-daily dosing was measured in a euglycemic glucose clamp study enrolling 21 patients with type 1 diabetes. Figure 2 shows the pharmacodynamic effect of TRESIBA over time following 8 once-daily subcutaneous injections of 0.4 U/kg of TRESIBA in patients with type 1 diabetes.
Figure 2: Mean GIR Profile for 0.4 units/kg Dose of TRESIBA (Steady State) in Patients with Type 1 Diabetes Mellitus
The mean maximum glucose lowering effect (GIRmax ) of a 0.4 units/kg dose of TRESIBA was 2.0 mg/kg/min, which was observed at a median of 12 hours post-dose. The glucose lowering effect of TRESIBA lasted at least 42 hours after the last of 8 once-daily injections.
In patients with type 1 diabetes mellitus, the steady-state, within subjects, day-to-day variability in total glucose lowering effect was 20% with TRESIBA (within-subject coefficient of variation for AUCGIR,τ,SS ).
The total glucose-lowering effect of TRESIBA over 24 hours measured in a euglycemic clamp study after 8 days of once-daily administration in patients with type 1 diabetes increases approximately in proportion to the dose for doses between 0.4 units/kg to 0.8 units/kg.
The total glucose-lowering effect of 0.4 units/kg of TRESIBA U-100 and 0.4 units/kg of TRESIBA U-200, administered at the same dose, and assessed over 24 hours in a euglycemic clamp study after 8 days of once-daily injection was comparable.
All MedLibrary.org resources are included in as near-original form as possible, meaning that the information from the original provider has been rendered here with only typographical or stylistic modifications and not with any substantive alterations of content, meaning or intent.