Lipid lowering
A meta-analysis of four major, randomized clinical trials of intensive versus moderate statin therapy in 27,546 patients with stable coronary artery disease or acute coronary syndrome concluded that intensive therapy resulted in a 27% reduction in the risk of hospitalization for heart failure (J Am Coll Cardiol. 2006 Jun 6;47[11]:2326-31).
SGLT-2 inhibition
Until the randomized EMPA-REG OUTCOME trial of the sodium-glucose transporter 2 (SGLT-2) inhibitor empagliflozin(Jardiance), no glucose-lowering drug available for treatment of type 2 diabetes had shown any benefit in terms of reducing diabetic patients’ elevated risk of heart failure. Neither had weight loss. Abundant evidence showed that glycemic control had no impact on the risk of heart failure events. So EMPA-REG OUTCOME was cause for celebration among heart failure specialists, with its demonstration of a 35% reduction in the risk of hospitalization for heart failure, compared with placebo in more than 7,000 randomized patients. The risk of death because of heart failure was chopped by 68%. Sharp reductions in other cardiovascular events were also seen with empagliflozin (N Engl J Med. 2015 Nov 26;373[22]:2117-28).
Similar benefits were subsequently documented with another SGLT-2 inhibitor, canagliflozin(Invokana), in the CANVAS study program (N Engl J Med. 2017 Aug 17;377:644-57).
The reduction in cardiovascular mortality achieved with empagliflozin in EMPA-REG OUTCOME was actually bigger than seen with ACE inhibitors and angiotensin-receptor blockers (ARBs) in earlier landmark heart failure trials (Eur J Heart Fail. 2017 Jan;19[1]:43-53).
Dr. Fonarow views these data as “compelling.” These trials mark a huge step forward in the prevention of heart failure.
“We now for the first time in patients with diabetes have the ability to markedly prevent heart failure as well as cardiovascular death,” the cardiologist commented. “It is critical for cardiologists and heart failure specialists to play an active role in this [pharmacologic diabetes] management, as choice of therapy is a key determinant of outcomes, including survival.”