Bexagliflozin (Brenzavvy – TheracosBio), a sodium-glucose cotransporter 2 (SGLT2) inhibitor, has been approved by the FDA to improve glycemic control in adults with type 2 diabetes. It is the fifth SGLT2 inhibitor to be approved in the US for this indication (see Table 4).

The FDA has approved sotagliflozin (Inpefa – Lexicon), an oral sodium-glucose cotransporter 1 and 2 (SGLT1/2) inhibitor, to reduce the risk of hospitalization for heart failure (HF), urgent HF visits, and cardiovascular death in adults with either HF (with any left ventricular ejection fraction [LVEF]) or type 2 diabetes, chronic kidney disease (CKD), and other cardiovascular risk factors. Sotagliflozin is the first dual SGLT1/2 inhibitor to be approved in the US. Unlike SGLT2 inhibitors, it is not FDA-approved to improve glycemic control in adults with type 2 diabetes. Sotagliflozin is approved in the European Union as Zynquista for adjunctive treatment of type 1 diabetes.

The sodium-glucose cotransporter 2 (SGLT2) inhibitor dapagliflozin (Farxiga – AstraZeneca) was approved by the FDA in 2020 to reduce the risk of cardiovascular death and hospitalization for heart failure (HF) in adults with heart failure with reduced ejection fraction (HFrEF). The indication has now been expanded to include a reduction in the risk of urgent HF visits and use in adults with any left ventricular ejection fraction (LVEF).

Diet, exercise, and weight loss can improve glycemic control, but almost all patients with type 2 diabetes require antihyperglycemic drug therapy. Treating to a target A1C of <7% while minimizing hypoglycemia is recommended to prevent microvascular complications of diabetes (retinopathy, nephropathy, and neuropathy). An A1C target of <8% may be appropriate for some older patients.

The sodium-glucose cotransporter 2 (SGLT2) inhibitor empagliflozin (Jardiance – Boehringer Ingelheim) was approved by the FDA in 2021 to reduce the risk of hospitalization for heart failure (HF) and cardiovascular death in patients with heart failure with reduced ejection fraction (HFrEF; LVEF ≤40%), regardless of whether or not they have type 2 diabetes. The indication has now been expanded to include patients with HF with any ejection fraction. Empagliflozin is the first SGLT2 inhibitor to be approved in the US for this indication.

The FDA has approved an expansion of the peripheral artery disease (PAD) indication for the oral direct factor Xa inhibitor rivaroxaban (Xarelto – Janssen) to include patients who have recently undergone a lower extremity revascularization procedure for symptomatic PAD (see Table 1). Rivaroxaban is the first direct oral anticoagulant (DOAC) to be approved for use in patients with PAD.

View the Comparison Chart: SGLT2 Inhibitors

In a randomized, placebo-controlled trial, the sodium-glucose cotransporter 2 (SGLT2) inhibitor empagliflozin (Jardiance – Boehringer Ingelheim/Lilly) reduced the composite risk of cardiovascular death or hospitalization for worsening heart failure (HF) in patients with heart failure with reduced ejection fraction (HFrEF), whether or not they had type 2 diabetes. To date, empagliflozin has not been approved by the FDA for such use. The SGLT2 inhibitor dapagliflozin (Farxiga) was approved by the FDA for this indication earlier this year.

The FDA has removed a boxed warning from the labeling of products containing the sodium-glucose co-transporter 2 (SGLT2) inhibitor canagliflozin (Invokana, Invokamet, Invokamet XR) that described an increased risk of lower limb amputation associated with use of the drug. Package inserts for canagliflozin products still contain a standard warning about a risk of lower limb amputation.

Diet, exercise, and weight loss can improve glycemic control, but almost all patients with type 2 diabetes eventually require drug therapy. Treating to a glycated hemoglobin (A1C) concentration of <7% can prevent microvascular complications (retinopathy, nephropathy, and neuropathy), but whether it prevents macrovascular complications and death is unclear. An A1C target of <8% may be appropriate for older patients and those with underlying cardiovascular disease (CVD), a history of severe hypoglycemia, diabetes-related complications, a limited life expectancy, or a long duration of disease.

The FDA has approved the sodium-glucose co-transporter 2 (SGLT2) inhibitor ertugliflozin (Merck) for treatment of adults with type 2 diabetes, both alone (Steglatro) and in fixed-dose combinations with metformin (Segluromet) and sitagliptin (Steglujan). Ertugliflozin is the fourth SGLT2 inhibitor to be approved in the US. All four are available in combination with metformin and three are available in combination with a dipeptidyl peptidase-4 (DPP-4) inhibitor (see Table 3).

The FDA has approved Qtern (AstraZeneca), a fixed-dose combination of the sodium-glucose co-transporter 2 (SGLT2) inhibitor dapagliflozin (Farxiga) and the dipeptidyl peptidase-4 (DPP-4) inhibitor saxagliptin (Onglyza), for oral treatment of adults with type 2 diabetes. Dapagliflozin and saxagliptin have each been available for years alone and in combination with extended-release metformin (Xigduo XR; Kombiglyze XR). Three SGLT2/DPP-4 inhibitor combinations are now available in the US (see Table 2).

View the Comparison Table: SGLT2 Inhibitors