Abstract
BackgroundThe effects of sodium-glucose cotransporter 2 inhibitors (SGLT2i) on calcium phosphate homeostasis in patients with type 2 diabetes mellitus (T2DM) and chronic kidney disease (CKD) remain uncertain. MethodsA retrospective observational cohort study of patients with T2DM at CKD stage G3b-5ND who received SGLT2i as compared to control from 1 January 2015 through 31 December 2021 was recruited. Propensity score assignment at 1:3 ratio by logistic regression was done. All patients were followed for 12 months. Outcomes were changes in phosphate level. ResultsWe analyzed 1,450 SGLT2i users and 4,350 control subjects. At the 12th month, SGLT2i users had a slower increase in phosphate levels (absolute change: −0.01 ± 0.28 vs + 0.14 ± 0.34 mmol/L; percentage change: −0.74 % ± 25.56 vs + 10.88 ± 28.15 %, P for both < 0.001). The proportion of patients with high phosphate was lower with SGLT2i (8.2 % vs 24.6 % increase). In the generalized estimating equation, SGLT2i was linked to a longitudinal reduction in phosphate (B −0.039, P<0.001). ConclusionsSGLT2i can effectively slow down the progression of phosphate retention in advanced CKD with T2DM.
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