Matching Perfusion and Metabolic Activity in HFpEF
University of Pennsylvania
Summary
This study will test whether pharmacologic agents that increase perfusion \[Potassium Nitrate (KNO3)\], with and without additional supplements that may improve mitochondrial function \[Propionyl-L-Carnitine (PLC) and Nicotinamide Riboside (NR)\], improve submaximal exercise endurance and skeletal muscle oxidative phosphorylation capacity (SkM OxPhos) in participants with Heart Failure with Preserved Ejection Fraction (HFpEF).
Description
This study will test whether Potassium Nitrate (KNO3), with and without Propionyl-L-Carnitine (PLC) and Nicotinamide Riboside (NR), improves submaximal exercise endurance and skeletal muscle oxidative phosphorylation capacity (SkM OxPhos) in participants with Heart Failure with Preserved Ejection Fraction (HFpEF). Additionally, the study will test whether the response to supplemental oxygen during a standardized MRI assessment of skeletal muscle oxidative capacity can identify HFpEF individuals who preferentially will benefit from either KNO3 alone or the combination of pharmacologic agents (K…
Eligibility
- Age range
- 18+ years
- Sex
- All
- Healthy volunteers
- No
Inclusion Criteria: 1. NYHA Class II-III symptoms 2. Left ventricular ejection fraction \>= 50% 3. Stable medical condition for at least 2 weeks, as per investigator judgment 4. Prior or current evidence for elevated filling pressures as follows: a. Mitral early (E)/mitral septal tissue annular (e') velocity ratio \> 8, in the context of a septal e' velocity \<=7, in addition to one of the following: i. Large left atrium (LA volume index \> 34 mL/m2) ii. Chronic loop diuretic use for control of symptoms iii. Elevated natriuretic peptides within the past year (e.g. NTproBNP \> 125 pg/mL in…
Interventions
- DrugPotassium Nitrate
Potassium Nitrate is the active intervention that may increase blood flow to exercising muscle
- DrugPotassium Nitrate + Propionyl-L-Carnitine + Nicotinamide Riboside
Potassium Nitrate + Propionyl-L-Carnitine + Nicotinamide Riboside will be used as a combination intervention to both increase blood flow (KNO3) and mitochondrial function (PLC + NR)
- OtherPotassium Chloride
Active control
Location
- University of PennsylvaniaPhiladelphia, Pennsylvania