In patients hospitalized with congestive heart failure male gender is an independent predictor of mortality. Female heart failure patients may be under-treated with ACE inhibitors.
The ACE inhibition after myocardial infarction complicated by left ventricular dysfunction appears to be of considerable importance in patients with diabetes mellitus by saving lives and substantially reducing the risk of progression to severe heart failure.
Background
Data from recent cardiovascular outcome trials in patients with type 2 diabetes (T2D) suggest that sodium-glucose cotransporter 2 (SGLT2) inhibitors can prevent development of heart failure (HF) and prolong life in patients without HF. Ongoing event-driven trials are investigating whether the same effect is present in patients with well-defined HF. The mechanism behind the effect of SGLT2 inhibitors in patients with T2D and the potential effect in patients with overt HF is presently unknown.
Methods
This is a randomized, double-blinded, placebo-controlled, parallel group, clinical trial including HF patients with reduced left ventricular ejection fraction (HFrEF) with an ejection fraction ≤ 40% on optimal therapy recruited from specialized HF clinics in Denmark. The primary aim is to investigate the effect of the SGLT2 inhibitor empagliflozin on N-terminal pro-brain natriuretic peptide (NT-proBNP). Secondary endpoints include cardiac biomarkers, function and hemodynamics, metabolic and renal parameters, daily activity level, and quality of life. Patients are assigned 1:1 to 90 days treatment with empagliflozin 10 mg daily or placebo. Patients with T2D are required to be on recommended doses of anti-glycemic therapy with a hemoglobin A1c (HbA1c) of 6.5–10.0% (48–86 mmol/mol). To show a between-group difference in the change of NT-proBNP of 30%, a total of 189 patients will be included.
Discussion
The Empire HF trial will elucidate the effects and modes of action of empagliflozin in HFrEF patients with and without T2D and provide important mechanistic data which will complement ongoing event-driven trials.
Trial registration
Clinicaltrialsregister.eu, EudraCT Number
2017-001341-27
. Registered on 29 May 2017.
ClinicalTrials.gov,
NCT03198585
. Registered on 26 June 2017.
Electronic supplementary material
The online version of this article (10.1186/s13063-019-3474-5) contains supplementary material, which is available to authorized users.
The findings suggest that conducted vasoconstriction to NE and local electrical stimulation in rat mesenteric arterioles are modulated by ANG II, an increase in the plasma levels of ANG II increasing conducted vasoconstriction.
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