A Study to Learn About the Study Medicine Called PF-07328948 in Adults With Heart Failure (BRANCH-HF)

All participants in this study will take either the study medicine (PF-07328948) tablets, or placebo tablets, once daily, by mouth, every day for 36 weeks. The study determines if the study medicine (PF-07328948) is safe and effective compared to placebo in people with heart failure who are already taking standard-of-care medications for heart failure that include sodium-glucose cotransporter 2 (SGLT2) inhibitors. Participants will be involved in this study for about 48 weeks. During this time, participants will visit the study clinic 15 times. In general, 5 of these visits may be performed at home by phone and the other 10 visits will take place at the study site.