SGLT2 inhibitors consistently reduced the risk of composite kidney outcomes by 11% to 27% compared to GLP-1 receptor agonists in adults with chronic kidney disease and type 2 diabetes.
Systematic Review
Does SGLT2i compared to GLP-1 RA improve kidney outcomes in adults with chronic kidney disease, type 2 diabetes, and overweight or obesity?
In adults with CKD, T2D, and overweight/obesity, current evidence supports SGLT2is as foundational therapy for kidney protection, with GLP-1 RAs positioned as a complementary adjunct.
Effect estimate: HR 0.83 (95% CI 0.72-0.95)
p-value: p=<0.05
Both sodium-glucose co-transporter 2 inhibitors (SGLT2is) and glucagon-like peptide 1 receptor agonists (GLP-1 RAs) have demonstrated kidney benefits in adults with chronic kidney disease (CKD) with type 2 diabetes (T2D) and overweight/obesity. However, questions remain regarding the optimal positioning, combination and sequencing of the two drug classes. This systematic literature review (SLR) identified evidence on comparisons, combinations or sequencing of SGLT2is and GLP-1 RAs in this population. Databases were searched in May 2025. Relevant congresses between 2023 and 2025, SLR bibliographies and ClinicalTrials.gov were hand-searched. Articles were screened by two independent reviewers. Kidney and composite kidney outcomes were prioritised as the most clinically relevant for a population with CKD; additional safety, cardiovascular, HbA1c and weight endpoints were also extracted. Electronic databases identified 922 records, with an additional 117 records from hand searches. In total, 48 publications were included reporting on 38 unique studies; comprising 11 meta-analyses (MAs) and 27 primary publications. Findings from MAs consistently favoured SGLT2is over GLP-1 RAs for composite kidney outcomes. Primary research studies showed no clear direction of benefit for change in estimated glomerular filtration rate (eGFR) or albuminuria from baseline, or eGFR decline. However, progression of kidney disease, where reported, was consistently reduced with SGLT2is versus GLP-1 RAs. In the absence of head-to-head trials, the evidence identified supports the use of SGLT2is as a foundational therapy in adults with CKD and T2D, offering kidney protection, metabolic and cardiovascular benefits, with GLP-1 RAs positioned as a complementary adjunct. CRD420251053598.
Handelsman et al. (Tue,) conducted a systematic review in Chronic kidney disease with type 2 diabetes and overweight or obesity. Sodium-glucose co-transporter 2 inhibitors (SGLT2is) vs. Glucagon-like peptide 1 receptor agonists (GLP-1 RAs) was evaluated on Composite kidney outcomes (HR 0.83, 95% CI 0.72-0.95, p=<0.05). SGLT2 inhibitors consistently reduced the risk of composite kidney outcomes by 11% to 27% compared to GLP-1 receptor agonists in adults with chronic kidney disease and type 2 diabetes.