Status:
RECRUITING
Matching Perfusion and Metabolic Activity in HFpEF
Lead Sponsor:
University of Pennsylvania
Conditions:
Heart Failure With Preserved Ejection Fraction
Eligibility:
All Genders
18+ years
Phase:
PHASE2
Brief 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-Ca...
Detailed 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...
Eligibility Criteria
Inclusion
- NYHA Class II-III symptoms
- Left ventricular ejection fraction \>= 50%
- Stable medical condition for at least 2 weeks, as per investigator judgment
- 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 sinus rhythm or \> 375 pg/mL if in atrial fibrillation) b. Mitral E/e' ratio \> 14 at rest or during exercise c. Elevated invasively-determined filling pressures previously (resting left ventricular end-diastolic pressure \>= 16 mm Hg or pulmonary capillary wedge pressure \>= 15 mmHg; or PCWP/LVEDP \>= 25 mmHg with exercise) d. Prior episode of acute heart failure requiring IV diuretics
Exclusion
- Age \<18 years old
- Pregnancy:
- Treatment with organic nitrates or phosphodiesterase inhibitors that cannot be interrupted
- Uncontrolled atrial fibrillation, as defined by a resting heart rate \> 100 beats per minute at the time of the baseline assessment
- Hemoglobin \< 10 g/dL
- Subject inability/unwillingness to exercise
- Moderate or greater left sided valvular disease (mitral regurgitation, aortic stenosis, aortic regurgitation), mild or greater mitral stenosis, severe right-sided valvular disease
- Known hypertrophic, infiltrative, or inflammatory cardiomyopathy
- Clinically significant pericardial disease, as per investigator judgment
- Current angina due to clinically significant epicardial coronary disease, as per investigator judgment
- Acute coronary syndrome or coronary intervention within the past 2 months
- Primary pulmonary artery hypertension (WHO Group 1 Pulmonary Arterial Hypertension)
- Clinically significant lung disease as defined by: Chronic Obstructive Pulmonary Disease meeting Stage III or greater GOLD criteria (FEV1\<50%), treatment with oral steroids within the past 6 months for an exacerbation of obstructive lung disease, current use of supplemental oxygen aside from nocturnal oxygen for the treatment of obstructive sleep apnea, desaturation to \<90% on the baseline maximal effort cardiopulmonary exercise test
- Clinically-significant ischemia, as per investigator's judgement, on stress testing without either (1) subsequent revascularization, (2) an angiogram demonstrating the absence of clinically significant epicardial coronary artery disease, as per investigator judgment; (3) a follow-up 'negative' stress test, particularly when using a more specific technique (i.e., a negative perfusion imaging test following a 'positive' ECG stress test)
- Left ventricular ejection fraction \< 45% on a prior echocardiogram or cardiac MRI, unless the reduced LVEF occurred within the context of an uncontrolled supraventricular arrhythmia, with return of a normal ejection fraction following treatment of the arrhythmia
- Significant liver disease impacting synthetic function or volume control (ALT/AST \> 3x ULN, Albumin \< 3.0 g/dL)
- eGFR \< 30 mL/min/1.73m\^2
- Methemoglobin \> 5%
- Serum potassium \> 5.0 mEq/L
- Severe right ventricular dysfunction
- Baseline resting seated systolic blood pressure \> 180 mmHg or \< 100 mmHg
- Persistently low (\<100 mmHg) or high (\>180 mmHg) seated blood pressure at the baseline visit
- Orthostatic blood pressure response to the transition from supine to standing (\>20 mmHg reduction in systolic blood pressure 2-3 minutes after standing)
- Active participation in another study that utilizes an investigational agent (observational studies/registries allowed)
- Any condition that, in the opinion of the investigator, will interfere with the performance and completion of the study.
Key Trial Info
Start Date :
October 11 2021
Trial Type :
INTERVENTIONAL
Allocation :
ESTIMATED
End Date :
May 1 2027
Estimated Enrollment :
53 Patients enrolled
Trial Details
Trial ID
NCT04913805
Start Date
October 11 2021
End Date
May 1 2027
Last Update
May 23 2025
Active Locations (1)
Enter a location and click search to find clinical trials sorted by distance.
1
University of Pennsylvania
Philadelphia, Pennsylvania, United States, 19104