Combinational therapy with metformin and sodium-glucose cotransporter inhibitors in management of type 2 diabetes: systematic review and meta-analyses
Abstract
AIMS: In search of add-on treatments to metformin, sodium-glucose cotransporter-2 (SGLT-2) inhibitors are potential candidates. This meta-analysis examines the potential use of SGLT-2 inhibitors in combination with metformin as a therapeutic option for type 2 diabetes management in patients with inadequate control with metformin.
METHODS: A literature search was made in several databases for randomized controlled trials (RCTs) utilizing metformin therapy combined with SGLT-2 inhibitors or placebo. Heterogeneity was estimated with I(2) statistics and random effect model was chosen for the meta-analyses of mean differences in changes from baseline in both SGLT-2 inhibitor treated and control groups.
RESULTS: Seven RCTs were selected for the meta-analysis. In comparison with placebo-MET, the SGLT-2 inhibitor-MET combination therapy resulted in significant HbA1c decline in 12-24 week duration, to less extent after 1 year (-0.37 [-0.77, 0.03]; P=0.07) but not by 2 year (-0.41 [-1.09, 0.28]; P=0.24) duration. SGLT-2 inhibitor-MET significantly lowered FPG and body weight after 24 weeks, 1 year, and 2 years. Systolic and diastolic blood pressure declined only in the short-term (12-24 weeks). After 2 years, neither systolic (-1.80 [-6.18, 2.58]; P=0.42) nor diastolic blood pressure (-0.20 [-2.94, 2.54]; P=0.89) declined significantly more than control. Incidence of suspected genital infections was slightly more in SGLT-2 inhibitor-MET group.
CONCLUSION: SGLT-2 inhibition in…
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