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A Narrative Review of Diabetic Kidney Disease: Previous and Current Evidence-Based Therapeutic Approaches
1Department of Nephrology, Osaka Medical and Pharmaceutical University, Osaka, 569-8686, Japan. akira.mima@ompu.ac.jp.
Abstract:
Diabetic kidney disease (DKD) is one of the most important diabetic complications. DKD is also the most common cause of chronic kidney disease (CKD) and end-stage renal disease. This review focused on potential therapeutic drugs for which there is established evidence of treatment for DKD. The earliest evidence for DKD treatment was established with renin-angiotensin system (RAS) inhibitors; however, their efficacy was partial. Recently, the sodium-glucose co-transporter 2 (SGLT2) inhibitors, including empagliflozin (EMPA-REG Outcome), canagliflozin (CREDENCE trial), and dapagliflozin (DAPA-CKD), demonstrated a significant and clinically relevant reduction in the risks of albuminuria and progression of nephropathy, doubling of serum creatinine levels, and initiation of renal replacement therapy. Additionally, incretin-based therapeutic agents, such as glucagon-like peptide 1, liraglutide (LEADER), and dipeptidyl peptidase 4 inhibitors, linagliptin (CARMERINA) have elicited vasotropic actions, suggesting a potential for reducing the risk of DKD. Until recently, mineralocorticoid receptor antagonists (MRAs) have not been suitable for DKD treatment because of their adverse effect of hyperkalemia. In contrast, finerenone, a non-steroidal MRA, significantly reduced renal composite endpoint without severe hyperkalemia that would force its discontinuation (FIDELIO-DKD). Thus, the mainstay treatments of DKD are RAS inhibitors, SGLT2 inhibitors, incretin-based therapeutic agents, and non-steroidal MRA, or in other words, the DKD "fantastic four".
Insights
Diabetic kidney disease (DKD) treatments have advanced beyond renin-angiotensin system (RAS) inhibitors. Sodium-glucose co-transporter 2 (SGLT2) inhibitors and incretin-based agents offer new therapeutic options for DKD management.
Area of Science:
- Nephrology
- Endocrinology
- Pharmacology
Background:
- Diabetic kidney disease (DKD) is a major complication of diabetes and a leading cause of chronic kidney disease (CKD).
- Existing treatments, like renin-angiotensin system (RAS) inhibitors, provide partial efficacy.
- Novel therapeutic strategies are crucial for managing DKD progression and its associated risks.
Purpose of the Study:
- To review established and emerging therapeutic drugs for diabetic kidney disease (DKD).
- To highlight recent advancements in DKD pharmacotherapy based on clinical trial evidence.
- To identify key drug classes forming the current standard of care for DKD.
Main Methods:
- Literature review focusing on clinical trials and established evidence for DKD treatments.
- Analysis of drug efficacy and safety profiles for various therapeutic agents.
- Synthesis of findings to define the current landscape of DKD pharmacotherapy.
Main Results:
- Sodium-glucose co-transporter 2 (SGLT2) inhibitors (empagliflozin, canagliflozin, dapagliflozin) significantly reduce albuminuria and slow DKD progression.
- Incretin-based agents (GLP-1 receptor agonists, DPP-4 inhibitors) show potential benefits due to vasotropic actions.
- Non-steroidal mineralocorticoid receptor antagonists (MRAs), such as finerenone, demonstrate efficacy without significant hyperkalemia.
Conclusions:
- The current mainstay treatments for DKD include RAS inhibitors, SGLT2 inhibitors, incretin-based agents, and non-steroidal MRAs.
- These four classes of drugs represent a significant advancement in managing DKD.
- Further research and clinical application of these agents are essential for improving outcomes in diabetic kidney disease.
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