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Clinical Trial Summary

Chronic, ambulatory heart failure patients will be given ketone ester dietary supplementation to determine therapeutic efficacy, metabolic adaptation, pharmacokinetics, associated cognitive changes, and safety within this patient cohort in order to establish preliminary data to later conduct a multi-center randomized clinical trial.


Clinical Trial Description

We previously demonstrated a metabolic signature of increased ketone utilization—increased peripheral blood concentration of beta-hydroxybutyrate (BHB) and decreased myocardial concentration of BHB—and markedly decreased acylcarnitine levels in the failing human myocardium procured from lean, non-diabetic patients with advanced heart failure at the time of cardiac transplantation. In this working model of the metabolic adaptations in human heart failure where the mobilization of lipids and ketones are required for an energetically deficient, failing heart it is likely that the development of insulin resistance may be adaptive since increased insulin or insulin signaling would put a brake on the hydrolysis of lipids and hepatic ketogenesis. In parallel with the recent discovery that the failing human heart is reliant on ketones, investigators at Oxford and the NIH have identified a nutritional ketone supplement that reliably increases the serum concentration of BHB in humans.

We hypothesize that the induction of ketosis by exogenous administration of the nutritional ketone monoester will improve myocardial function in heart failure by increasing the energetic substrate available to the myocardium, in essence supporting the energetic deficit of the failing human heart which we have demonstrated to be reliant on ketone bodies for fuel given the limited myocardial oxidation of glucose.

This is a prospective, double-blinded, sequence control crossover trial enrolling NYHA Class II-III ambulatory heart failure patients to receive either ketone mono-ester drink versus placebo for two weeks. Following 2 weeks of therapy, echocardiogram and peak exercise test will be performed. There will be a 1-week "washout" period between phases. Subjects will serve as their own controls for this crossover study, as each will have both baseline testing and testing in the setting of mild nutritional ketosis. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT04370600
Study type Interventional
Source Thomas Jefferson University
Contact Michael W Foster, M.D.
Phone 6107160962
Email mfoster610@gmail.com
Status Not yet recruiting
Phase Phase 1
Start date June 2020
Completion date June 2021

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