Salt pills for heart failure? new study investigates

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: 1. Chronic heart failure NYHA I-III. 2. LVEF ≤40% documented in the echocardiography. 3. Stable Heart Failure symptoms: * Stable symptoms (subjectively declared by the patient) over the past three months. * No increase in peripheral edema or body weight (declared by the patient). * Loop diuretic dose equivalent to 80 mg of furosemide or 20 mg of torasemide daily, with no changes in the past three months. 4. Age over 18 and under 85 years. 5. Male or female. 6. Use of guideline-directed medical therapy (GDMT), with each drug group at maximum tolerated doses but no more than half of the maximum dose. 7. Systolic blood pressure \<100 mmHg and/or diastolic blood pressure \<60 mmHg. 8. Resting heart rate up to 80 bpm. 9. Serum sodium concentration \<140 mmol/L, regardless of the cause. Exclusion Criteria: 1. Hospitalization due to heart failure decompensation within the last three months. 2. Primary hypertrophic or restrictive cardiomyopathy, constrictive pericarditis. 3. Systemic disease known to be associated with cardiac muscle infiltration. 4. Significant valvular disease (moderate or severe stenosis of any valve, moderate or severe aortic or pulmonary regurgitation, severe tricuspid or mitral regurgitation). 5. Severe renal impairment (eGFR \<30 mL/min/1.73 m² based on the MDRD formula). 6. Stroke or transient ischemic attack (TIA) within the last three months. 7. Cardiac resynchronization therapy (CRT), ICD, ablation, or pacemaker implantation (or planned implantation) within the last three months. 8. Severe lung disease or "cor pulmonale" or other causes of isolated right ventricular failure not associated with left ventricular dysfunction. 9. Severe lung disease with respiratory failure requiring home oxygen therapy. 10. Body weight \<40 kg or ≥150 kg. 11. Life expectancy \<12 months according to the investigator's assessment 12. Pregnancy or breastfeeding. 13. Ongoing drug or alcohol abuse. 14. Lactose intolerance.