To evaluate whether low-dose (5 mg) SGLT2 inhibitors provide comparable efficacy and safety compared with the standard 10 mg dose and to non-users in heart failure patients with diabetes.
Approach:
Key Findings:
The 5 mg group showed a lower risk of the primary outcome compared to the 10 mg group (HR: 0.73, 95% CI: 0.66–0.81; P < 0.001).
The 5 mg group also had a lower risk of all-cause death compared to the 10 mg group (HR 0.85, 95% CI 0.74–0.97; P = 0.019).
Safety profiles were similar between the 5 mg and 10 mg groups.
Interpretation:
Further randomized dose-finding trials are warranted.
Limitations:
The study was retrospective and based on claims data, which may limit the ability to establish causality.
Only patients with both diabetes and heart failure were included due to reimbursement restrictions.
Conclusion:
5 mg daily SGLT2 inhibitors were associated with comparable risk to 10 mg in patients with diabetes and heart failure.