Heart Failure Clinical Trials

∙ \- 1. Ischemic or non-ischemic cardiomyopathy and documented heart failure for at least 6 months (diagnosis of HF ≥ 6 months), regardless of ejection fraction.

∙ 2\. NYHA Class II heart failure (HF) subjects, documented at Baseline Visit regardless of ejection fraction, meeting both inclusion criteria in subsections (2a) and (2b) or NYHA Class III heart failure (HF) subjects, documented at Baseline Visit regardless of ejection fraction, meeting at least one inclusion criteria in subsections (2a) and (2b).

• Have a minimum of one (1) HF hospitalization or equivalent (HF Emergency Department Visit or HF Urgent Clinic Visit) within the last 12 months associated with signs/symptoms of congestion requiring treatment with intravenous (IV) diuretic. If Cardiac Resynchronization Therapy (CRT) device previously implanted, the HF hospitalization or equivalent must be ≥ 30 days after CRT implantation.

• Have a corrected\* elevated outpatient Brain Natriuretic Peptide (BNP) level of at least 300 pg/ml or an N-terminal pro-BNP (NT-proBNP) level of at least 1,500 pg/ml, according to local measurement, within 90-days of the Baseline Visit.

• \*Thresholds for NT-proBNP will be corrected for body mass index (BMI) using a 4% reduction per BMI unit over 20 kg/m2. If subject is on ARNI, NT-proBNP should be used exclusively.

• 3\. Receiving maximally-tolerated medical therapy for heart failure as indicated per ACC/AHA or ESC Heart Failure Guidelines (guideline-directed medical therapy or GDMT), in the absence of contraindications and lack of availability. GDMT refers to those guideline-directed medical therapies having a Class I indication for use.

⁃ For patient with heart failure and a reduced ejection fraction (HFrEF), GDMT includes a diuretic as needed for volume control, angiotensin-converting enzyme (ACE) inhibitor or angiotensin receptor blocker (ARB) or angiotensin receptor neprilysin inhibitor (ARNI), beta-blocker (BB), mineralocorticoid receptor antagonist (MRA), and SGLT2 inhibitor for at least 3 months prior to the Baseline visit. Drug doses, with the exception of diuretics, should be stable for at least 1 month, where stability is defined as no more than a 100% increase or 50% decrease in dose.

⁃ For patient with heart failure and a preserved ejection fraction (HFpEF), GDMT includes a diuretic as needed for volume control and treatment of associated conditions (e.g., hypertension, atrial fibrillation) for at least 3 months prior to the Baseline visit. Drug doses, with the exception of diuretics, should be stable for at least 1 month, where stability is defined as no more than a 100% increase or 50% decrease in dose.

⁃ Patients should also receive Class I recommended cardiac rhythm management device therapy. Specifically: if indicated by class I guidelines, cardiac resynchronization therapy (CRT), implanted cardioverter-defibrillator (ICD), or a pacemaker should be implanted at least 3 months prior to Baseline Visit. These criteria may be waived if a patient is clinically contraindicated for these therapies or refuses them and must be attested to by the investigator.

⁃ GDMT may change over time; the most current versions of the ACC/AHA or ESC Heart Failure Guidelines will supersede the above guidelines.

‣ 4\. Provide informed consent for study participation and be willing and able to comply with the required tests, treatment instructions, and follow-up visits.