This study is for adults aged 18 and older with heart failure. Heart failure is when the heart doesn't pump blood as well as it should. It involves taking two medicines: vicadrostat and empagliflozin. Participants are randomly placed in one of two groups. One group takes both medicines, and the other takes a placebo (a pill with no medicine) with empagliflozin. The main goal is to see if vicadrostat and empagliflozin together help people with heart failure.

Regular visits to the doctor and phone check-ups are part of the study. Participants answer questions about how they feel and tolerate the treatment. There is no set end date for the study, as it will continue until enough information is gathered.

• Participants will need to take pills daily and visit their doctor regularly.
• Participants can stay in the study as long as they benefit from it and can handle the treatment.
• No fixed end date; the study continues until enough data is collected.