A variety of glucose monitoring devices have been used in an effort to reduce the hypoglycemia and wide glucose excursions that complicate insulin treatment of diabetes. Since the last Medical Letter issue reviewing such devices, more continuous glucose monitoring (CGM) systems have become available. Five devices available now, and two expected to be marketed soon, are listed in the table on page 14. The FDA has approved continuous glucose devices only for the observation of glucose trends.

The FDA has warned that use of an SGLT2 (sodium-glucose co-transporter 2) inhibitor for treatment of type 2 diabetes may lead to ketoacidosis.1 Three SGLT2 inhibitors, canagliflozin (Invokana, Invokamet), dapagliflozin (Farxiga, Xigduo XR), and empagliflozin (Jardiance, Glyxambi), are approved for treatment of type 2 diabetes in the US. Between March 2013 and June 2014, 20 cases of ketoacidosis requiring emergency room visits or hospitalization were reported in patients who had recently started taking an SGLT2 inhibitor; the median time to onset of symptoms after initiation of therapy was 2...

Finerenone (Kerendia – Bayer), an oral nonsteroidal mineralocorticoid receptor antagonist (MRA), has been approved by the FDA to reduce the risk of sustained eGFR decline, end-stage renal disease, nonfatal MI, hospitalization for heart failure (HF), and cardiovascular death in adults with chronic kidney disease (CKD) associated with type 2 diabetes. It is the first nonsteroidal MRA to be approved in the US.

Chromium is marketed as a dietary supplement, usually containing 20-500 mcg of a chromium salt. It has been promoted for weight loss, muscle building, and for prevention and treatment of diabetes, among other claims. As a dietary supplement, chromium can be sold without proof of efficacy or safety.

Insulin detemir (Levemir - Novo Nordisk) is the second long-acting basal insulin analog to be marketed in the US for treatment of both type 1 and type 2 diabetes. Detemir differs from human insulin by the elimination of the amino acid threonine in position B30 and the addition of a 14-carbon fatty acid chain at position B29. Insulin glargine (Lantus), the first long-acting insulin analog, has been available since 2001 and is usually given once daily.1 NPH insulin is an intermediate-acting basal insulin given twice daily. Basal insulins are usually combined with prandial doses of a rapid-acting...

The sodium-glucose cotransporter 2 (SGLT2) inhibitor dapagliflozin (Farxiga), which was initially approved by the FDA for treatment of type 2 diabetes and then to reduce the risk of hospitalization for HF in adults who have type 2 diabetes and established cardiovascular disease (CVD) or multiple cardiovascular risk factors, has now been approved for a third indication: to reduce the risk of cardiovascular death and hospitalization for heart failure (HF) in patients with heart failure with reduced ejection fraction (with or without type 2 diabetes). It is the first SGLT2 inhibitor to...

A variety of continuous glucose monitoring (CGM) devices have been used in an effort to reduce the hypoglycemia and wide glucose excursions that complicate insulin treatment of diabetes. Since the last Medical Letter issue reviewing such devices, some new devices and some new data on old devices have become available. The devices currently marketed in the US for personal use are listed in Table 1.

Insulin Glargine (Lantus) is a new long-acting human insulin analog approved by the FDA for treatment of both type 1 and type 2 diabetes. Synthesized by recombinant DNA technology, it differs from human insulin at position 21 in the A-chain where asparagine is replaced by glycine and at the C-terminus of the B-chain where two arginines are added.

The FDA recently approved the use of atorvastatin (Lipitor) to reduce the risk of heart attack and stroke in patients without heart disease who have type 2 diabetes plus other risk factors, with or without hypercholesterolemia. The agency also approved the drug's use to reduce the risk of stroke in high-risk nondiabetic patients without heart disease, whether or not they have hypercholesterolemia. Similar indications were previously approved for simvastatin (Zocor).

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....