Heart Failure Clinical Trials

• 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 the subject is on ARNI, NT-proBNP should be used exclusively.

⁃ 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.

⁃ Minimum technological knowledge of either the subject or the caregiver, with a smartphone or tablet for use of the self-management application, including physical ability and access to internet.

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

• 5.2. Exclusion criteria