DAPAGLIFLOZIN
Brand names: DAPAGLIFLOZIN, FARXIGA, Dapagliflozin, dapagliflozin
Warnings
5 WARNINGS AND PRECAUTIONS Diabetic Ketoacidosis in Patients with Type 1 Diabetes Mellitus and Other Ketoacidosis : Consider ketone monitoring in patients with type 1 diabetes mellitus and consider ketone monitoring in others at risk for ketoacidosis, as indicated. Assess for ketoacidosis regardless of presenting blood glucose levels and discontinue dapagliflozin tablets if ketoacidosis is suspected. Monitor patients for resolution of ketoacidosis before restarting. ( 5.1 ) Volume depletion : Before initiating dapagliflozin tablets, assess volume status and renal function in the elderly, patients with renal impairment or low systolic blood pressure, and in patients on diuretics. Monitor for signs and symptoms during therapy. ( 5.2 ) Genitourinary Infections, including Urosepsis, Pyelonephritis, Necrotizing Fasciitis of the Perineum (Fournier’s Gangrene), and Genital Mycotic Infections: Monitor patients for signs and symptoms of genitor urinary infections and treat promptly, if indicated. Immediately evaluate patients presenting with pain or tenderness, erythema, or swelling in the genital orperineal area, along with fever or malaise, for necrotizing fasciitis and if suspected, discontinue dapagliflozin tablets, and promptly institute appropriate medical and/or surgical intervention ( 5.3 ) Hypoglycemia : Consider a lower dose of insulin or the insulin secretagogue to reduce the risk of hypoglycemia when used in combination with dapagliflozin tablets. ( 5.4 ) 5.1 Diabetic Ketoacidosis in Patients with Type 1 Diabetes Mellitus and Other Ketoacidosis In patients with type 1 diabetes mellitus, dapagliflozin tablets significantly increases the risk of diabetic ketoacidosis, a life-threatening event, beyond the background rate. In placebo-controlled trials of patients with type 1 diabetes mellitus, the risk of ketoacidosis was markedly increased in patients who received sodium-glucose cotransporter 2 (SGLT2) inhibitors compared to patients who received placebo. Dapagliflozin tablets are not indicated for glycemic control in patients with type 1 diabetes mellitus. Type 2 diabetes mellitus and pancreatic disorders (e.g., history of pancreatitis or pancreatic surgery) are also risk factors for ketoacidosis. There have been postmarketing reports of fatal events of ketoacidosis in patients with type 2 diabetes mellitus using SGLT2 inhibitors, including dapagliflozin tablets. Precipitating conditions for diabetic ketoacidosis or other ketoacidosis include under-insulinization due to insulin dose reduction or missed insulin doses, acute febrile illness, reduced caloric intake, ketogenic diet, surgery, volume depletion, and alcohol abuse. Signs and symptoms are consistent with dehydration and severe metabolic acidosis and include nausea, vomiting, abdominal pain, generalized malaise, and shortness of breath. Blood glucose levels at presentation may be below those typically expected for diabetic ketoacidosis (e.g., less than 250 mg/dL). Ketoacidosis and glucosuria may persist longer than typically expected. Urinary glucose excretion persists for 3 days after discontinuing dapagliflozin tablets [see Clinical Pharmacology ( 12.2) ] ; however, there have been postmarketing reports of ketoacidosis and/or glucosuria lasting greater than 6 days and some up to 2 weeks after discontinuation of SGLT2 inhibitors. Consider ketone monitoring in patients with type 1 diabetes mellitus and consider ketone monitoring in others at risk for ketoacidosis if indicated by the clinical situation. Assess for ketoacidosis regardless of presenting blood glucose levels in patients who present with signs and symptoms consistent with severe metabolic acidosis. If ketoacidosis is suspected, discontinue dapagliflozin tablets, promptly evaluate, and treat ketoacidosis, if confirmed. Monitor patients for resolution of ketoacidosis before restarting dapagliflozin tablets. Withhold dapagliflozin tablets, if possible, in temporary clinical situations that could predispose patients to ketoacidosis. Resume dapagliflozin tablets when the patient is clinically stable and has resumed oral intake [see Dosage and Administration ( 2.4 )] . Educate all patients on the signs and symptoms of ketoacidosis and instruct patients to discontinue dapagliflozin tablets and seek medical attention immediately if signs and symptoms occur. 5.2 Volume Depletion Dapagliflozin tablets can cause intravascular volume depletion which may sometimes manifest as symptomatic hypotension or acute transient changes in creatinine. There have been post-marketing reports of acute kidney injury, some requiring hospitalization and dialysis, in patients with type 2 diabetes mellitus receiving SGLT2 inhibitors, including dapagliflozin tablets. Patients with impaired renal function (eGFR less than 60 mL/min/1.73 m 2 ), elderly patients, or patients on loop diuretics may be at increased risk for volume depletion or hypotension. Before initiating dapagliflozin tablets in patients with one or more of these characteristics, assess volume status and renal function. Monitor for signs and symptoms of hypotension, and renal function after initiating therapy. 5.3 Genitourinary Infections, including Urosepsis, Pyelonephritis, Necrotizing Fasciitis of the Perineum (Fournier’s Gangrene), and Genital Mycotic Infections Dapagliflozin tablets increases urinary glucose excretion [ see Clinical Pharmacology( 12.2 ) ] and increases the riskof genitourinary infections including urinary tract infections and genital mycotic infections in both maleand female patients [ see Adverse Reactions ( 6.1 ) ]. Serious genitourinary infections, including urosepsis, pyelonephritis, and necrotizing fasciitis of the perineum (Fournier’s gangrene, a rare life-threatening infection requiring urgent surgical intervention), have occurred in patients receiving SGLT2 inhibitors, including dapagliflozin tablets [ see Adverse Reactions( 6.2 ) ]. Cases have required hospitalization. In patients with Fournier’s gangrene, serious outcomes haveincluded multiple surgeries and death. Patients with a history of genitourinary infections are more likely to develop genitourinary infections when using Dapagliflozin tablets. Monitor patients for signs and symptoms of genitourinary infections and treat promptly, if indicated. Immediately evaluate patients presenting with pain or tenderness, erythema, or swelling in the genital or perineal area, along with fever or malaise, for necrotizing fasciitis. If suspected, discontinue Dapagliflozin tablets and promptly institute appropriate medical and/or surgical intervention. 5.4 Hypoglycemia with Concomitant Use with Insulin and Insulin Secretagogues Insulin and insulin secretagogues (e.g., sulfonylureas) are known to cause hypoglycemia. Dapagliflozin tablets may increase the risk of hypoglycemia when combined with insulin or an insulin secretagogue [see Adverse Reactions ( 6.1 )] . Therefore, a lower dose of insulin or insulin secretagogue may be required to minimize the risk of hypoglycemia when these agents are used in combination with dapagliflozin tablets [see Drug Interactions ( 7 )] .
Contraindications
4 CONTRAINDICATIONS Dapagliflozin tablets is contraindicated in patients with a history of a serious hypersensitivity reaction to dapagliflozin or any of the excipients in dapagliflozin tablets. Serious hypersensitivity reactions, including anaphylaxis and angioedema have been reported with dapagliflozin tablets [see Adverse Reactions ( 6.1 )] . History of serious hypersensitivity reaction to dapagliflozin or any of the excipients in dapagliflozin tablets. ( 4 )
Overdose
10 OVERDOSAGE There were no reports of overdose during the clinical development program for dapagliflozin tablets. In the event of an overdose, consider contacting the Poison Help line (1-800-222-1222) or a medical toxicologist for additional overdosage management recommendations. It is also reasonable to employ supportive measures as dictated by the patient's clinical status. The removal of dapagliflozin by hemodialysis has not been studied.
Drug interactions
7 DRUG INTERACTIONS Table 4: Clinically Relevant Interactions with Dapagliflozin Tablets Insulin or Insulin Secretagogues Clinical Impact The risk of hypoglycemia may be increased when dapagliflozin tablets is used concomitantly with insulin or insulin secretagogues (e.g., sulfonylurea) [see Warnings and Precautions ( 5.4 )] . Intervention Concomitant use may require lower doses of insulin or the insulin secretagogue to reduce the risk of hypoglycemia. Lithium Clinical Impact Concomitant use of an SGLT2 inhibitor with lithium may decrease serum lithium concentrations. Intervention Monitor serum lithium concentration more frequently during dapagliflozin tablets initiation and dosage changes. Positive Urine Glucose Test Clinical Impact SGLT2 inhibitors increase urinary glucose excretion and will lead to positive urine glucose tests. Intervention Monitoring glycemic control with urine glucose tests is not recommended in patients taking SGLT2 inhibitors. Use alternative methods to monitor glycemic control. Interference with 1,5-anhydroglucitol (1,5-AG) Assay Clinical Impact Measurements of 1,5-AG are unreliable in assessing glycemic control in patients taking SGLT2 inhibitors. Intervention Monitoring glycemic control with 1,5-AG assay is not recommended. Use alternative methods to monitor glycemic control. See full prescribing information for information on drug interactions and interference of dapagliflozin tablets with laboratory tests. ( 7 )
Uses
1 INDICATIONS AND USAGE Dapagliflozin tablets are indicated: To reduce the risk of hospitalization for heart failure in adults with type 2 diabetes mellitus and either established CV disease or multiple CV risk factors. As an adjunct to diet and exercise to improve glycemic control in adults with type 2 diabetes mellitus. Limitations of Use Dapagliflozin tablets are not recommended for use to improve glycemic control in patients with type 1 diabetes mellitus [see Warnings and Precautions (5.1) ]. Dapagliflozin tablets are not recommended for use to improve glycemic control in patients with type 2 diabetes mellitus with an eGFR less than 45 mL/min/1.73 m 2 . Dapagliflozin tablets are likely to be ineffective in this setting based upon its mechanism of action. Pediatric use information is approved for AstraZeneca AB's Farxiga ® (dapagliflozin) Tablets. However, due to AstraZeneca AB's marketing exclusivity rights, this drug product is not labeled with that information. Dapagliflozin tablets are a sodium-glucose cotransporter 2 (SGLT2) inhibitor indicated: To reduce the risk of hospitalization for heart failure in adults with type 2 diabetes mellitus and either established CV disease or multiple CV risk factors. ( 1 ) As an adjunct to diet and exercise to improve glycemic control in adults with type 2 diabetes mellitus. ( 1 ) Limitations of use: Not recommended for use to improve glycemic control in patients with type 1 diabetes mellitus. ( 1 ) Not recommended for use to improve glycemic control in patients with type 2 diabetes mellitus with an eGFR less than 45 mL/min/1.73 m 2 . Dapagliflozin tablets are likely to be ineffective in this setting based upon its mechanism of action. ( 1 )
Dosage forms & strengths
2 DOSAGE AND ADMINISTRATION Assess renal function prior to initiation and then as clinically indicated. Assess volume status and correct volume depletion before initiating. ( 2.1 ) To improve glycemic control, the recommended starting dosage is 5 mg orally once daily. Dosage can be increased to 10 mg orally once daily for additional glycemic control. (2.2) For all other indications, the recommended dosage is 10 mg orally once daily. (2.3) See full prescribing information for dosage recommendations in patients with renal impairment. ( 2.2 , 2.3 ) Withhold dapagliflozin tablets for at least 3 days, if possible, prior to surgery or procedures associated with prolonged fasting. (2.4) 2.1 Testing Prior to Initiation of Dapagliflozin Tablets Assess renal function prior to initiation of dapagliflozin tablets and then as clinically indicated [see Warnings and Precautions ( 5.2 )] . Assess volume status. In patients with volume depletion, correct this condition before initiating dapagliflozin tablets [see Warnings and Precautions ( 5.2 ) and Use in Specific Populations ( 8.5 , 8.6 )] . 2.2 Recommended Dosage for Glycemic Control in Adults with Type 2 Diabetes Mellitus In adults with type 2 diabetes mellitus, the recommended starting dosage of dapagliflozin tablets is 5 mg orally once daily to improve glycemic control. For additional glycemic control, the dosage can be increased to 10 mg orally once daily. For Adult Patients with Type 2 Diabetes Mellitus and Renal Impairment: The recommended dosage for dapagliflozin tablets in patients with an eGFR greater than or equal to 45 mL/min/1.73 m 2 is the same as the recommended dosage in patients with normal renal function. Dapagliflozin tablets is not recommended for use to improve glycemic control in patients with type 2 diabetes mellitus with an eGFR less than 45 mL/min/1.73 m 2 . Dapagliflozin tablets is likely to be ineffective to improve glycemic control in this setting based upon its mechanism of action. Pediatric use information is approved for AstraZeneca AB's Farxiga ® (dapagliflozin) Tablets. However, due to AstraZeneca AB's marketing exclusivity rights, this drug product is not labeled with that information. 2.3 Recommended Dosage for Other Indications in Adults The recommended dosage of dapagliflozin tablets is 10 mg orally once daily in adults for the following indications: To reduce the risk of hHF in patients with type 2 diabetes mellitus and either established CV disease or multiple CV risk factors. For Adults with Renal Impairment Receiving Dapagliflozin Tablets for Indications Other than Glycemic Control: The recommended dosage of dapagliflozin tablets in patients with an eGFR greater than or equal to 25 mL/min/1.73 m 2 is the same as the recommended dosage in patients with normal renal function. Initiation with dapagliflozin tablets is not recommended in patients with an eGFR less than 25 mL/min/1.73 m 2 . 2.4 Temporary Interruption for Surgery Withhold dapagliflozin tablets for at least 3 days, if possible, prior to surgery or procedures associated with prolonged fasting. Resume dapagliflozin tablets when the patient is clinically stable and has resumed oral intake [see Warnings and Precautions ( 5.1 ) and Clinical Pharmacology ( 12.2 )] . 2.5 Recommendations Regarding Missed Dose If a dose is missed, instruct patients to take the dose as soon as possible. Advise patients not to double up the next dose.