Poll

A New Combination Proves Itself in Treatment for Type 2 Diabetes

Try your hand at this first in a series of questions on combination drug therapy to optimize treatment of T2DM.

We have created a series of questions on combination drug therapy to optimize treatment of T2DM. This first round is on concomitant use of the sodium-glucose contransporter 2 (SGLT2) inhibitors and dipeptidyl peptidase-4 (DPP-4) inhibitors.

SGLT2 inhibitors reduce hyperglycemia by preventing glucose reabsorption by the renal tubule and thus producing glucosuria. The DPP-4 inhibitors block the degradation of the gut hormone GLP-1 which stimulates release of insulin in a glucose-dependent manner and decreases circulating glucagon levels. When these mechanisms are combined, studies find, they are complementary and effective in reducing A1c in patients with type 2 diabetes (T2DM).

Question 1. Randomized controlled trials of combination therapy with an SGLT2 inhibitor and a DPP-4 inhibitor have shown that:

A. The combination therapy is synergistic in reducing HbA1c.
B. The combination therapy is additive in reducing HbA1c.
C. The combination therapy is ineffective and does not reduce HbA1c.
D. The combination therapy is more effective than either therapy alone but decrease in A1c is not additive
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