Segluromet

— THERAPEUTIC CATEGORIES —
  • Diabetes

Segluromet Generic Name & Formulations

General Description

Ertugliflozin, metformin HCl; 2.5mg/500mg, 2.5mg/1000mg, 7.5mg/500mg, 7.5mg/1000mg; tabs.

Pharmacological Class

Sodium-glucose co-transporter 2 (SGLT2) inhibitor + biguanide.

How Supplied

Tabs—60, 180

Manufacturer

Generic Availability

NO

Mechanism of Action

Ertugliflozin inhibits SGLT2 reducing renal reabsorption of filtered glucose and lowers the renal threshold for glucose, and thereby increases urinary glucose excretion.

Metformin improves glucose tolerance in patients with type 2 diabetes mellitus, lowering both basal and postprandial plasma glucose. Its pharmacologic mechanisms of action are different from other classes of oral antihyperglycemic agents. Metformin decreases hepatic glucose production, decreases intestinal absorption of glucose, and improves insulin sensitivity by increasing peripheral glucose uptake and utilization. Metformin does not produce hypoglycemia in either patients with type 2 diabetes mellitus or normal subjects (except in special circumstances) and does not cause hyperinsulinemia. With metformin therapy, insulin secretion remains unchanged while fasting insulin levels and day-long plasma insulin response may actually decrease.

Segluromet Indications

Indications

Adjunct to diet and exercise to improve glycemic control in adults with type 2 diabetes mellitus.

Limitations of Use

Not for improving glycemic control in patients with type 1 diabetes.

Segluromet Dosage and Administration

Adult

See full labeling. Swallow whole. Take twice daily with meals. Individualize. Base dose on patient's current regimen. Increase dose gradually as tolerated. Maximum daily dose: 15mg/2000mg. Renal impairment (eGFR <45mL/min/1.73m2): not recommended.

Children

<18yrs: not established.

Segluromet Contraindications

Contraindications

Severe renal impairment (eGFR <30mL/min/1.73m2), ESRD, or on dialysis. Metabolic acidosis, diabetic ketoacidosis, with or without coma.

Segluromet Boxed Warnings

Boxed Warning

Lactic acidosis.

Segluromet Warnings/Precautions

Warnings/Precautions

Increased risk of metformin-associated lactic acidosis in renal or hepatic impairment, concomitant use of certain drugs (eg, carbonic anhydrase inhibitors), ≥65yrs of age, undergoing radiological contrast study, surgery and other procedures, hypoxic states, and excessive alcohol intake; discontinue if lactic acidosis occurs. Discontinue at time of, or prior to intravascular iodinated contrast imaging in patients with eGFR <60mL/min/1.73m2, history of hepatic impairment, alcoholism, heart failure, or will be given intra-arterial contrast; reevaluate eGFR 48hrs after procedure and restart therapy if renally stable. Increased risk for volume depletion or hypotension in those with renal impairment (eGFR <60mL/min/1.73m2), elderly, low systolic BP, or on loop diuretics. Assess volume status, renal function before and after initiating therapy; and more frequently in elderly. Correct volume depletion before initiating. Assess for ketoacidosis in presence of signs/symptoms of metabolic acidosis, regardless of blood glucose levels; discontinue if suspected, evaluate and treat if confirmed. Monitor for resolution of ketoacidosis before restarting. Withhold (at least 4 days), if possible, prior to major surgery or procedures associated with prolonged fasting. Necrotizing fasciitis of the perineum (Fournier's gangrene); discontinue and treat immediately if suspected; use alternative antidiabetic. Increased risk of genital mycotic infections, UTIs (including urosepsis, pyelonephritis); monitor and treat appropriately. Prior to initiation, consider factors that may predispose to need for amputations (eg, history of prior amputation, peripheral vascular disease, neuropathy, diabetic foot ulcers). Monitor for infection (including osteomyelitis), new pain/tenderness, sores or ulcers of the lower limbs; discontinue if occur. Measure hematologic parameters annually and Vit. B12 levels at 2–3 year intervals. Hepatic impairment: not recommended. Pregnancy (2nd & 3rd trimesters), nursing mothers: not recommended.

Segluromet Pharmacokinetics

Absorption

Peak plasma concentration: 1 hour postdose under fasting conditions (ertugliflozin). Absolute oral bioavailability: ~100% (ertugliflozin); 50–60% (metformin).

Distribution

Mean steady-state volume of distribution: 85.5 L (ertugliflozin). Apparent volume of distribution (metformin): 654 ± 358L. Plasma protein bound: 93.6% (ertugliflozin); negligible (metformin).

Metabolism

Ertugliflozin: UGT1A9, UGT2B7-mediated O-glucuronidation. 

Elimination

Ertugliflozin: renal (50.2%), fecal (40.9%). Metformin: renal (~90%). Half-life: 16.6 hours (ertugliflozin); 17.6 hours (metformin).

Segluromet Interactions

Interactions

Increased risk of lactic acidosis with topiramate, other carbonic anhydrase inhibitors (eg, zonisamide, acetazolamide, dichlorphenamide); monitor. Concomitant cationic drugs that interfere with renal tubular transport systems (eg, ranolazine, vandetanib, dolutegravir, cimetidine) may increase metformin levels. Diuretics, steroids, phenothiazines, thyroid products, estrogens, oral contraceptives, phenytoin, nicotinic acid, sympathomimetics, CCBs, and isoniazid may cause hyperglycemia. Avoid excessive alcohol. Greater potential for volume depletion or hypotension with concomitant diuretics. β-blockers may mask hypoglycemia. May need a lower dose of concomitant insulin or insulin secretagogue (eg, sulfonylurea) to reduce risk of hypoglycemia. Ertugliflozin may antagonize serum lithium concentrations; monitor levels more frequently. Ertugliflozin will lead to false (+) urine glucose tests or unreliable measurements of 1, 5-AG assay; use alternative methods to monitor glycemic control.

Segluromet Adverse Reactions

Adverse Reactions

Genital mycotic infections (esp. females), UTIs, headache, vaginal pruritus, increased urination, thirst, diarrhea, nausea, vomiting, flatulence, abdominal discomfort, indigestion, asthenia; hypoglycemia, ketoacidosis, lower limb amputation; rare: lactic acidosis, Fournier's gangrene.

Segluromet Clinical Trials

See Literature

Segluromet Note

Not Applicable

Segluromet Patient Counseling

See Literature