COgnitioN With VERiciGuat Evaluation in Heart Failure

This study is testing whether a heart failure medication called vericiguat — which relaxes blood vessels — can also improve mild to moderate cognitive impairment (thinking and memory problems) that often occurs alongside chronic heart failure. **You may be eligible if...** - You are an adult - You have had chronic heart failure for at least 6 months - You have been diagnosed with mild to moderate cognitive impairment, or you scored between 10 and 25 on the Montreal Cognitive Assessment (MoCA) **You may NOT be eligible if...** - You take long-acting nitrates or certain other medications (riociguat, PDE-5 inhibitors like sildenafil) - You are pregnant or breastfeeding - You are unable to undergo cardiac MRI or brain MRI - You have an implanted heart device (pacemaker, defibrillator) incompatible with MRI - You have uncontrolled atrial fibrillation or serious recurring heart rhythm problems - You have uncontrolled thyroid disease, liver failure, cancer, or severe dementia - You recently had heart bypass surgery or angioplasty (within the past 3 months) - You are currently hospitalised Talk to your doctor to see if this trial is right for you.