About this trial
The study team will examine the effects of elevated plasma ketone levels following initiation of SGLT2 inhibitor therapy in high-risk type 2 diabetes mellitus (T2DM) individuals with heart failure (HF) with reduced ejection fraction (HFrEF) providing an energy-rich fuel that is taken up with great avidity by the myocardium, to measure change in Left Ventricle diastolic and systolic function
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Type 2 Diabetes Mellitus
Class II-III New York Heart Association (NYHA) heart failure and reduced ejection fraction (EF) <50%
Age 18-80 years
BMI 23-44 kg/m2
Disqualifiers
Heart failure due to restrictive cardiomyopathy, active myocarditis, constrictive pericarditis, severe valvular heart disease, hypertrophic obstructive cardiomyopathy.
Significant change in diuretic management during the month prior to screening (defined by doubling of diuretic dose or addition of another heart failure medication)
Type 2 Diabetics treated with Dipeptidyl Peptidase-4 Inhibitor (DPP4i) or pioglitazone
Pregnancy, lactation, or plans to become pregnant. A negative pregnancy test will be performed before each MRI study to assess current status. For women of child-bearing age (WOCBA) willingness to use contraception, if applicable.
Trial design
Parallel
Treatments tested in this trial
Empagliflozin 25 MG Oral Tablet
DrugEmpagliflozin 25MG will be administered orally once per day for 3 months
Placebo
DrugThe placebo will be administered orally once per day for 3 months
Acipimox 250 Mg Oral Capsule
Drugsubjects will be started on acipimox 250mg every 6 hours for 8 days while on continued empagliflozin/placebo therapy. This will be added at the end of 3 months after they finished baseline studies
Treatment groups
Trial outcomes
Primary outcomes
Change in Phosphocreatine
A measure of phosphocreatine change from baseline to study end
Change in Adenosine Triphosphate (ATP)
A measure of ATP change from baseline to study end
Change in Inorganic Phosphate
A measure of inorganic phosphate change from baseline to study end
Change in Phosphodiester
A measure of phosphodiester change from baseline to study end
Secondary outcomes
Plasma Beta-hydroxybutyrate (β-OH-B)
Change in β-OH-B with medication
Acetoacetate concentrations
Change in acetoacetate concentrations
6-min walking test
Change in the distance that can be covered in a 6 minute walk test
Patient-Reported Outcomes Measure Information System
By checking KCCQ (Kansas City Cardiomyopathy) scoring: Responses are categorized under 3 sub scales (symptom burden, physical limitation and quality of life) with a range of possible subscale scores from 0 to 100, with 100 representing the least burden of symptoms. The total KCCQ score represents the mean of the three sub scale scores.
Sponsors and contacts
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The University of Texas Health Science Center at San Antonio
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Collaborator