Abstract Background Sodium-glucose co-transporter-2 (SGLT-2) inhibitors have been clearly demonstrated to be associated with lower rate of new-onset heart failure(HF) in patients under risk of HF. In addition, due to lower rehospitalisation and better functional status in HF patients, SGLT-2 inhibitors have became the cornerstone of treatment regardless of the diabetes status. New-onset HF is very common in survivors of anterior ST-segment elevation myocardial infarction(STEMI) and requires preventive strategies, however the role of SGLT-2 inhibition in this population is not well established yet. Purpose In this study, we aimed to demonstrate the role of the SGLT-2 inhibitors in patients with anterior STEMI. Methods We prospectively enrolled patients with diabetes mellitus who had anterior STEMI, which was managed with primary percutaneous coronary intervention. Patients with previous myocardial infarction, heart failure, under SGLT-2 inhibitor treatment and chronic kidney disease were excluded. Patients were divided into two groups according to SGLT-2 inhibitor treatment; group 1 patients treated with empaglifosine or dapaglifosine and group 2 received other classes of diabetes medicine. Comorbidities regarding smoking history (p: 0.871), hypertension (p: 0.064), previous cerebrovascular accident(p: 0,348) and coronary artery disease(p: 0.201) were comparable between groups. Presence of multivessel coronary artery disease (p: 0.259) and left main coronary artery involvement (p: 0.062) were also similar between groups. Glucose level on admission was similar (p: 0.782) between groups, however HBa1C level was significantly higher in group 1(p: <0.001). Left ventricular ejection fraction which was calculated prior to hospital discharge was also similar between groups(p: 0.297). Mean follow-up duration was 12 months and new-onset heart failure was significantly lower in group 1 patients(p:<0.001). In line with the rate of new onset-heart failure, pro-BNP levels at the 12th month visit were lower in group 1 patients (p: 0.042) which was similar during the STEMI hospitalization (p: 0.668). Multivariate analyses demonstrated that the use of SGLT-2 inhibitors independently associated with lower rate of new-onset HF. Conclusion Our results indicate that SGLT-2 inhibitors decrease the rate of new-onset heart failure during the follow-up in patients with previous myocardial infarction.Baseline characteristicsUnivariate and multivariate analysis