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Study breakdown

GLP-1 Drugs Emerge as Fourth Pillar of Kidney Protection in Type 2 Diabetes

evidence
The takeaway

GLP-1 receptor agonists are now considered a fourth therapeutic pillar for CKD in T2D alongside RAAS inhibitors, SGLT2i, and finerenone, with expert guidance on sequencing and combining these treatments.

Fourth pillar

GLP-1 drugs join RAAS inhibitors, SGLT2i, and finerenone as the fourth established kidney-protective drug class in T2D

What the researchers found

GLP-1 RAs are now the fourth therapeutic pillar for CKD in T2D, with expert guidance on integrating them with RAAS inhibitors, SGLT2i, and finerenone based on individual patient factors.

Why it matters

Diabetic kidney disease leads to dialysis and death. Having four drug classes for kidney protection — and knowing how to combine them — could dramatically improve outcomes.

How the study worked

Expert opinion synthesizing landmark trial evidence (FLOW, CREDENCE, FIDELIO-DKD, etc.) to provide guidance on four-pillar CKD management in T2D.

What this study cannot tell us

Expert opinion. Optimal combinations and sequencing not established by RCTs. Resource and cost implications of four-drug regimens.

How to read the evidence

Expert opinion based on landmark trial evidence. Practical guidance but combination strategies need prospective validation.

When this study was published

Published in 2025, incorporating FLOW trial results.

The bigger picture

The evolution from one to four kidney-protective drug classes represents a transformation in diabetic nephrology, requiring new clinical algorithms.

Questions still open

  • What is the optimal order for starting the four pillars?
  • Can all four be used simultaneously safely?
  • Which patients benefit most from adding GLP-1 RA to three-drug therapy?

Common questions

What are the four pillars for diabetic kidney disease?
1) RAAS inhibitors (like lisinopril), 2) SGLT2 inhibitors (like empagliflozin), 3) finerenone, and 4) GLP-1 drugs (like semaglutide). Each protects kidneys through different mechanisms.
Do I need all four drugs?
Not necessarily. Which drugs and how many depend on your specific situation: kidney function, protein in urine, blood sugar, heart disease, weight, and other factors. Your doctor will personalize the approach.

Read the original research

Expert perspectives on incorporating glucagon-like peptide-1 receptor agonist in diabetes and chronic kidney disease: challenges and opportunities.

European journal of preventive cardiology, 33(1), 8-18

Citation

Halimi, Jean-Michel; Fauchier, Laurent; Karras, Alexandre; Amouyal, Chloé; Eladari, Dominique; Rossignol, Patrick; Choukroun, Gabriel; Zaoui, Philippe; Girerd, Nicolas; Hadjadj, Samy. (2026). Expert perspectives on incorporating glucagon-like peptide-1 receptor agonist in diabetes and chronic kidney disease: challenges and opportunities.. European journal of preventive cardiology, 33(1), 8-18. https://doi.org/10.1093/eurjpc/zwaf426