("Heart Failure, Diastolic"[MeSH] OR "heart failure with preserved ejection fraction"[Title/Abstract] OR "HFpEF"[Title/Abstract]) AND ("Sodium-Glucose Transporter 2 Inhibitors"[MeSH] OR "SGLT2 inhibitors"[Title/Abstract] OR "dapagliflozin"[Title/Abstract]) AND ("Randomized Controlled Trial"[Publication Type] OR "Clinical Trial"[Publication Type]). The gene discussed is SLC5A2; the disease is heart failure.