J Obes Metab Syndr.
2021 Dec;30(4):336-344. 10.7570/jomes21061.
Effect of Sodium-Glucose Cotransporter 2 Inhibitors on Weight Reduction in Overweight and Obese Populations without Diabetes: A Systematic Review and a Meta-Analysis
- Affiliations
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- 1Department of Internal Medicine, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Korea
- 2Departments of Clinical Epidemiology and Biostatistics, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
- 3Departments of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
- 4Asan Diabetes Center, Asan Medical Center, Seoul, Korea
- KMID: 2524573
- DOI: http://doi.org/10.7570/jomes21061
Abstract
- Background
We aimed to evaluate the efficacy of sodium-glucose cotransporter 2 (SGLT2) inhibitors for managing obesity in non-diabetic overweight or obese patients.
Methods
For purposes of this study, PubMed, Embase, Web of Science, and the Cochrane Central Register of Controlled Trials were searched through May 2021. Randomized controlled trials published in English that compared SGLT2 inhibitors with placebo in overweight and obese patients without diabetes were included in the primary analysis. The random effects standardized mean difference ±95% confidence interval (95% CI) was calculated as the effect size.
Results
Five randomized controlled trials were included to evaluate body weight change, four trials to assess body mass index (BMI), and three trials to assess waist circumference were included. Results showed that the mean body weight loss on SGLT2 inhibitors in obese patients without diabetes was −1.62 kg (95% CI, −2.38 to −0.85 kg) when compared with placebo. Treatment with SGLT2 inhibitors was also associated with a greater reduction in BMI than placebo (weighted mean difference, −0.47 kg/m2 ; 95% CI, −0.62 to −0.31 kg/m2 ). The mean reduction in waist circumference with SGLT2 inhibitors versus placebo was 1.29 cm (95% CI, −2.62 to 0.04 cm), which was not statistically significant. There were no significant changes in fat mass, blood pressure, low-density lipoprotein cholesterol or high-density lipoprotein cholesterol with SGLT2 inhibitor treatment.
Conclusion
A meta-analysis demonstrated that although the weight lowering effect was mild, SGLT2 inhibitors significantly reduced body weight in obese patients without diabetes.
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