Affiliation:
1. 1Université de Lorraine, Inserm, Centre d’Investigations Cliniques, Plurithématique 14-33, and Inserm U1116, CHRU, F-CRIN INI-CRCT (Cardiovascular and Renal Clinical Trialists), Nancy, France
2. 2Cardiovascular Research and Development Center, Department of Surgery and Physiology, Faculty of Medicine of the University of Porto, Porto, Portugal
Abstract
Background
Patients with insulin-treated type 2 diabetes (T2D) have a high risk of major adverse cardiovascular events. Sodium-glucose cotransporter inhibitors (SGLTi) improve outcomes without hypoglycaemic risk.
Aims
To study the effect of SGLTi in patients with T2D with and without background insulin treatment in outcome-driven RCTs.
Methods
Random effects models.
Results
A total of 54 374 patients with T2D were included in the analysis, of which 26 551 (48.8%) were treated with insulin. For 3P-MACE in patients without insulin treatment, the HR (95% CI) for the effect of SGLTi vs placebo was 0.93 (0.81–1.05), with moderate heterogeneity (I2 = 49.2%, Q statistic P = 0.11). In insulin-treated patients, the HR (95% CI) was 0.88 (0.82–0.95), without evidence of heterogeneity (I2 =0.0%, Q statistic P =0.91). The pooled effect evidenced a 10% reduction of 3P-MACE with SGLTi (HR: 0.90, 95% CI: 0.85–0.96), without SGLTi-by-insulin interaction P = 0.53. For the composite outcome of HF hospitalisation or cardiovascular death in patients without insulin treatment, the HR (95% CI) for the effect of SGLTi vs placebo was 0.77 (0.61-0.92), with marked heterogeneity (I2 = 66.8%, Q statistic P = 0.02). In insulin-treated patients, the HR (95% CI) was 0.77 (0.68–0.86), without significant heterogeneity (I2 = 31.7%, Q statistic P = 0.25). The pooled effect evidenced a 23% reduction of HF hospitalisations or cardiovascular death with SGLTi (HR: 0.77, 95% CI: 0.68–0.85), without SGLTi-by-insulin interaction P = 0.98.
Conclusion
SGLTi reduces cardiovascular events regardless of insulin use. However, the treatment effect is more homogeneous among insulin-treated patients, supporting the use of SGLTi for the treatment of patients with T2D requiring insulin for glycaemic control.
Subject
Endocrinology,General Medicine,Endocrinology, Diabetes and Metabolism
Cited by
4 articles.
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