The metabolic, cardiac, and renal systems share a symbiotic relationship. The heart relies on the metabolic system for energy and the kidneys for volume maintenance. The kidneys rely on the heart for perfusion and the metabolic system for hormones to support function. In turn, the metabolic system depends on proper functioning of the heart and kidneys to prevent neurohormonal activation leading to insulin resistance, glycose dysregulation, and dyslipidemia.
Given this interrelationship, type 2 diabetes often coexists with CVD and CKD. Moreover, CVD and CKD in the presence of type 2 diabetes worsen each other, thereby amplifying morbidity and mortality. Accordingly, the American Diabetes Association (ADA) asserts that the treatment goal for type 2 diabetes is not only glycemic and weight management but also cardiorenal risk reduction.
The ADA recommends sodium-glucose transport protein 2 (SGLT2) inhibitors as glucose-lowering agents with proven cardiorenal benefits. Some of these agents reduce the risk of CV events in patients with type 2 diabetes and an elevated risk of CVD, although another agent in this class increases the risk of amputation. Some of the agents in this class have cardiac benefits in patients with heart failure, with or without comorbid type 2 diabetes. Several SGLT2 inhibitors in this class also have renal benefits in patients with CKD (with or without type 2 diabetes), whereas another in the class slows the progression of diabetic kidney disease.
When would you prescribe this class of medication for your patients with type 2 diabetes?
Given that the risk of hypoglycemia with the SGLT-2 class is similar to placebo, even adding it to a diabetic who has otherwise normal glycemic control is a consideration.
Need additional blood glucose control.
Have established cardiovascular disease or are at high cardiovascular risk.
Have heart failure with reduced ejection fraction.
Have chronic kidney disease.
Are overweight or obese.